MXPA99003196A - Process for making a detergent composition by non-tower process - Google Patents
Process for making a detergent composition by non-tower processInfo
- Publication number
- MXPA99003196A MXPA99003196A MXPA/A/1999/003196A MX9903196A MXPA99003196A MX PA99003196 A MXPA99003196 A MX PA99003196A MX 9903196 A MX9903196 A MX 9903196A MX PA99003196 A MXPA99003196 A MX PA99003196A
- Authority
- MX
- Mexico
- Prior art keywords
- mixer
- surfactant
- agglomerates
- detergent
- process according
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 81
- 239000003599 detergent Substances 0.000 title claims abstract description 77
- 239000000203 mixture Substances 0.000 title claims abstract description 50
- 239000004094 surface-active agent Substances 0.000 claims abstract description 43
- 239000000843 powder Substances 0.000 claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 31
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- -1 alkylalkoxy sulfates Chemical class 0.000 claims description 23
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 17
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 16
- 229920000642 polymer Polymers 0.000 claims description 15
- 239000003945 anionic surfactant Substances 0.000 claims description 13
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 11
- HWGNBUXHKFFFIH-UHFFFAOYSA-I pentasodium;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O HWGNBUXHKFFFIH-UHFFFAOYSA-I 0.000 claims description 10
- 150000004760 silicates Chemical class 0.000 claims description 9
- 235000017550 sodium carbonate Nutrition 0.000 claims description 8
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000003093 cationic surfactant Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- PMZURENOXWZQFD-UHFFFAOYSA-L na2so4 Chemical class [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 5
- 239000002736 nonionic surfactant Substances 0.000 claims description 5
- 235000013162 Cocos nucifera Nutrition 0.000 claims description 4
- 240000007170 Cocos nucifera Species 0.000 claims description 4
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims description 4
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 4
- 235000011152 sodium sulphate Nutrition 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 4
- 150000008051 alkyl sulfates Chemical class 0.000 claims description 3
- 238000010924 continuous production Methods 0.000 claims description 3
- 235000021317 phosphate Nutrition 0.000 claims description 3
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 3
- 150000001860 citric acid derivatives Chemical class 0.000 claims description 2
- 239000002563 ionic surfactant Substances 0.000 claims description 2
- MGFYIUFZLHCRTH-UHFFFAOYSA-K nitrilotriacetate(3-) Chemical class [O-]C(=O)CN(CC([O-])=O)CC([O-])=O MGFYIUFZLHCRTH-UHFFFAOYSA-K 0.000 claims description 2
- 239000002888 zwitterionic surfactant Substances 0.000 claims description 2
- VQOIVBPFDDLTSX-UHFFFAOYSA-M sodium;3-dodecylbenzenesulfonate Chemical class [Na+].CCCCCCCCCCCCC1=CC=CC(S([O-])(=O)=O)=C1 VQOIVBPFDDLTSX-UHFFFAOYSA-M 0.000 claims 1
- 238000005507 spraying Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 25
- 239000004615 ingredient Substances 0.000 description 20
- 239000008187 granular material Substances 0.000 description 18
- 239000002245 particle Substances 0.000 description 17
- 238000005342 ion exchange Methods 0.000 description 16
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 16
- 238000005054 agglomeration Methods 0.000 description 13
- 230000002776 aggregation Effects 0.000 description 13
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 13
- 229920005646 polycarboxylate Polymers 0.000 description 13
- 239000002253 acid Substances 0.000 description 12
- 239000006072 paste Substances 0.000 description 12
- 150000003839 salts Chemical class 0.000 description 11
- 239000011780 sodium chloride Substances 0.000 description 11
- KWIUHFFTVRNATP-UHFFFAOYSA-N Betaine Natural products C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 10
- 125000000217 alkyl group Chemical group 0.000 description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 7
- 125000002947 alkylene group Chemical group 0.000 description 7
- 229920001577 copolymer Polymers 0.000 description 7
- 239000004115 Sodium Silicate Substances 0.000 description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N Sodium silicate Chemical class [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 229920000768 polyamine Polymers 0.000 description 6
- 238000001694 spray drying Methods 0.000 description 6
- 229910052783 alkali metal Inorganic materials 0.000 description 5
- 150000001340 alkali metals Chemical class 0.000 description 5
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N calcium cation Chemical group [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 5
- 229910001424 calcium ion Inorganic materials 0.000 description 5
- 125000004432 carbon atoms Chemical group C* 0.000 description 5
- 150000007942 carboxylates Chemical group 0.000 description 5
- 235000014113 dietary fatty acids Nutrition 0.000 description 5
- 239000000194 fatty acid Substances 0.000 description 5
- VZCYOOQTPOCHFL-UHFFFAOYSA-N fumaric acid Chemical compound OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 5
- 125000004435 hydrogen atoms Chemical group [H]* 0.000 description 5
- 239000011976 maleic acid Substances 0.000 description 5
- 235000019351 sodium silicates Nutrition 0.000 description 5
- VZCYOOQTPOCHFL-OWOJBTEDSA-N (E)-but-2-enedioate;hydron Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 4
- 210000002356 Skeleton Anatomy 0.000 description 4
- 150000003863 ammonium salts Chemical class 0.000 description 4
- 125000000129 anionic group Chemical group 0.000 description 4
- 230000000875 corresponding Effects 0.000 description 4
- 150000004665 fatty acids Chemical class 0.000 description 4
- 239000012467 final product Substances 0.000 description 4
- 125000001183 hydrocarbyl group Chemical group 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229920002866 paraformaldehyde Polymers 0.000 description 4
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 4
- 102000004190 Enzymes Human genes 0.000 description 3
- 108090000790 Enzymes Proteins 0.000 description 3
- 239000002202 Polyethylene glycol Substances 0.000 description 3
- 229920002873 Polyethylenimine Polymers 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 229920001519 homopolymer Polymers 0.000 description 3
- 238000011031 large scale production Methods 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 229920001223 polyethylene glycol Polymers 0.000 description 3
- 159000000001 potassium salts Chemical class 0.000 description 3
- 239000000344 soap Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 159000000000 sodium salts Chemical class 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- 239000010457 zeolite Substances 0.000 description 3
- 239000001124 (E)-prop-1-ene-1,2,3-tricarboxylic acid Substances 0.000 description 2
- PSZAEHPBBUYICS-UHFFFAOYSA-N 2-methylidenepropanedioic acid Chemical compound OC(=O)C(=C)C(O)=O PSZAEHPBBUYICS-UHFFFAOYSA-N 0.000 description 2
- GHNRTXCRBJQVGN-UHFFFAOYSA-N 4-dodecan-6-ylbenzenesulfonic acid Chemical compound CCCCCCC(CCCCC)C1=CC=C(S(O)(=O)=O)C=C1 GHNRTXCRBJQVGN-UHFFFAOYSA-N 0.000 description 2
- 229940091181 Aconitic Acid Drugs 0.000 description 2
- GTZCVFVGUGFEME-UHFFFAOYSA-N Aconitic acid Chemical compound OC(=O)CC(C(O)=O)=CC(O)=O GTZCVFVGUGFEME-UHFFFAOYSA-N 0.000 description 2
- 206010008415 Chediak-Higashi syndrome Diseases 0.000 description 2
- HNEGQIOMVPPMNR-IHWYPQMZSA-N Citraconic acid Chemical compound OC(=O)C(/C)=C\C(O)=O HNEGQIOMVPPMNR-IHWYPQMZSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerol Natural products OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- HNEGQIOMVPPMNR-NSCUHMNNSA-N Mesaconic acid Chemical compound OC(=O)C(/C)=C/C(O)=O HNEGQIOMVPPMNR-NSCUHMNNSA-N 0.000 description 2
- 239000012190 activator Substances 0.000 description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 125000004450 alkenylene group Chemical group 0.000 description 2
- 125000003710 aryl alkyl group Chemical group 0.000 description 2
- 125000000732 arylene group Chemical group 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000007844 bleaching agent Substances 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 239000002738 chelating agent Substances 0.000 description 2
- 229940018557 citraconic acid Drugs 0.000 description 2
- 230000003750 conditioning Effects 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 239000001530 fumaric acid Substances 0.000 description 2
- 229910001425 magnesium ion Chemical group 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000002304 perfume Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- OZAIFHULBGXAKX-UHFFFAOYSA-N precursor Substances N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N silicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 125000006273 (C1-C3) alkyl group Chemical group 0.000 description 1
- CFPOJWPDQWJEMO-UHFFFAOYSA-N 2-(1,2-dicarboxyethoxy)butanedioic acid Chemical class OC(=O)CC(C(O)=O)OC(C(O)=O)CC(O)=O CFPOJWPDQWJEMO-UHFFFAOYSA-N 0.000 description 1
- DKDGXMBYCDYDNP-UHFFFAOYSA-N 2-aminoethane-1,1-diol;propane-1-sulfonic acid Chemical compound NCC(O)O.CCCS(O)(=O)=O DKDGXMBYCDYDNP-UHFFFAOYSA-N 0.000 description 1
- XYJLPCAKKYOLGU-UHFFFAOYSA-N 2-phosphonoethylphosphonic acid Chemical class OP(O)(=O)CCP(O)(O)=O XYJLPCAKKYOLGU-UHFFFAOYSA-N 0.000 description 1
- KRKNYBCHXYNGOX-UHFFFAOYSA-K 2qpq Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 description 1
- RKWGIWYCVPQPMF-UHFFFAOYSA-N 4-chloro-N-[(propylamino)carbonyl]benzenesulfonamide Chemical compound CCCNC(=O)NS(=O)(=O)C1=CC=C(Cl)C=C1 RKWGIWYCVPQPMF-UHFFFAOYSA-N 0.000 description 1
- 239000004254 Ammonium phosphate Substances 0.000 description 1
- ZRIUUUJAJJNDSS-UHFFFAOYSA-N Ammonium phosphates Chemical class [NH4+].[NH4+].[NH4+].[O-]P([O-])([O-])=O ZRIUUUJAJJNDSS-UHFFFAOYSA-N 0.000 description 1
- 229910014585 C2-Ce Inorganic materials 0.000 description 1
- DBVJJBKOTRCVKF-UHFFFAOYSA-N Didronel Chemical class OP(=O)(O)C(O)(C)P(O)(O)=O DBVJJBKOTRCVKF-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 229960002598 Fumaric acid Drugs 0.000 description 1
- HHLFWLYXYJOTON-UHFFFAOYSA-N Glyoxylic acid Natural products OC(=O)C=O HHLFWLYXYJOTON-UHFFFAOYSA-N 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N Itaconic acid Chemical compound OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 230000035683 MEAN RESIDENCE TIME Effects 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N Maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-XIXRPRMCSA-N Mesotartaric acid Chemical compound OC(=O)[C@@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-XIXRPRMCSA-N 0.000 description 1
- XJRBAMWJDBPFIM-UHFFFAOYSA-N Methyl vinyl ether Chemical compound COC=C XJRBAMWJDBPFIM-UHFFFAOYSA-N 0.000 description 1
- SXKQTYJLWWQUKA-UHFFFAOYSA-N O.O.O.O.O.O.O.O.O.O.OB(O)O.OB(O)O.OB(O)O.OB(O)O Chemical compound O.O.O.O.O.O.O.O.O.O.OB(O)O.OB(O)O.OB(O)O.OB(O)O SXKQTYJLWWQUKA-UHFFFAOYSA-N 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
- XPPKVPWEQAFLFU-UHFFFAOYSA-J Pyrophosphate Chemical compound [O-]P([O-])(=O)OP([O-])([O-])=O XPPKVPWEQAFLFU-UHFFFAOYSA-J 0.000 description 1
- LPXPTNMVRIOKMN-UHFFFAOYSA-M Sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 1
- FQENQNTWSFEDLI-UHFFFAOYSA-J Tetrasodium pyrophosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 1
- ZUBJEHHGZYTRPH-KTKRTIGZSA-N [(Z)-octadec-9-enyl] hydrogen sulfate Chemical compound CCCCCCCC\C=C/CCCCCCCCOS(O)(=O)=O ZUBJEHHGZYTRPH-KTKRTIGZSA-N 0.000 description 1
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 125000002252 acyl group Chemical group 0.000 description 1
- 230000001464 adherent Effects 0.000 description 1
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 description 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 235000019289 ammonium phosphates Nutrition 0.000 description 1
- 239000002280 amphoteric surfactant Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 201000004002 aromatase excess syndrome Diseases 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 229960003237 betaine Drugs 0.000 description 1
- 150000001642 boronic acid derivatives Chemical class 0.000 description 1
- CMFFZBGFNICZIS-UHFFFAOYSA-N butanedioic acid;2,3-dihydroxybutanedioic acid Chemical compound OC(=O)CCC(O)=O.OC(=O)CCC(O)=O.OC(=O)C(O)C(O)C(O)=O CMFFZBGFNICZIS-UHFFFAOYSA-N 0.000 description 1
- HXDRSFFFXJISME-UHFFFAOYSA-N butanedioic acid;2,3-dihydroxybutanedioic acid Chemical compound OC(=O)CCC(O)=O.OC(=O)C(O)C(O)C(O)=O HXDRSFFFXJISME-UHFFFAOYSA-N 0.000 description 1
- 235000012970 cakes Nutrition 0.000 description 1
- 235000010216 calcium carbonate Nutrition 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- ROSDSFDQCJNGOL-UHFFFAOYSA-O dimethylaminium Chemical compound C[NH2+]C ROSDSFDQCJNGOL-UHFFFAOYSA-O 0.000 description 1
- IYNJILVYWCLNBH-UHFFFAOYSA-N dimethylazanium;2-hydroxypropane-1-sulfonate Chemical compound C[NH2+]C.CC(O)CS([O-])(=O)=O IYNJILVYWCLNBH-UHFFFAOYSA-N 0.000 description 1
- JMUARGQPJWIZIP-UHFFFAOYSA-N dimethylazanium;hexanoate Chemical compound C[NH2+]C.CCCCCC([O-])=O JMUARGQPJWIZIP-UHFFFAOYSA-N 0.000 description 1
- 235000011180 diphosphates Nutrition 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N edta Chemical class OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 230000002708 enhancing Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 238000007046 ethoxylation reaction Methods 0.000 description 1
- CQDGTJPVBWZJAZ-UHFFFAOYSA-M ethyl carbonate Chemical class CCOC([O-])=O CQDGTJPVBWZJAZ-UHFFFAOYSA-M 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 230000002349 favourable Effects 0.000 description 1
- 229940083124 ganglion-blocking antiadrenergic Secondary and tertiary amines Drugs 0.000 description 1
- 230000002070 germicidal Effects 0.000 description 1
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 1
- 229910052816 inorganic phosphate Inorganic materials 0.000 description 1
- 125000005647 linker group Chemical group 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000011068 load Methods 0.000 description 1
- 210000001699 lower leg Anatomy 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N magnesium ion Chemical group [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-L maleate(2-) Chemical compound [O-]C(=O)\C=C/C([O-])=O VZCYOOQTPOCHFL-UPHRSURJSA-L 0.000 description 1
- 125000005341 metaphosphate group Chemical group 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical class OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000003002 pH adjusting agent Substances 0.000 description 1
- ATGAWOHQWWULNK-UHFFFAOYSA-I pentapotassium;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical compound [K+].[K+].[K+].[K+].[K+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O ATGAWOHQWWULNK-UHFFFAOYSA-I 0.000 description 1
- XYFCBTPGUUZFHI-UHFFFAOYSA-O phosphonium Chemical compound [PH4+] XYFCBTPGUUZFHI-UHFFFAOYSA-O 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920001888 polyacrylic acid Polymers 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 230000000379 polymerizing Effects 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 125000002572 propoxy group Chemical group [*]OC([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- 229910052904 quartz Inorganic materials 0.000 description 1
- 230000003134 recirculating Effects 0.000 description 1
- 238000004626 scanning electron microscopy Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 150000003385 sodium Chemical group 0.000 description 1
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 1
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000005063 solubilization Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium Chemical class [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229940095064 tartrate Drugs 0.000 description 1
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 229910009112 xH2O Inorganic materials 0.000 description 1
Abstract
A non-tower process for continuously preparing granular detergent composition having a density of at least about 600 g/l is provided. The process comprises the steps of (a) dispersing a surfactant, and coating the surfactant with fine powder having a diameter from 0.1 to 500 microns, in a mixer, wherein first agglomerates are formed, (b) thoroughly mixing the first agglomerates in a mixer, wherein second agglomerates are formed, and (c) spraying finely atomized liquid onto the second agglomerates in a mixer.
Description
PROCEDURE TO MAKE A COMPOSITION DETERGENT BY A PROCEDURE THAT IS NOT A TOWER
FIELD OF THE INVENTION
In general terms, the present invention relates to a non-tower process for producing a particulate detergent composition. More particularly, the invention is directed to a continuous process during which detergent agglomerates are produced by introducing a surfactant and coating materials into a series of mixers. The process produces a free-flowing detergent composition, the density of which can be adjusted for a wide range of consumer needs, and which can be sold commercially.
BACKGROUND OF THE INVENTION
Recently, there has been considerable interest within the detergent industry for "compact" laundry detergents and, therefore, having low dosage volumes. To facilitate the production of these so-called low dosage detergents, many attempts have been made to produce high density global detergents, for example, with a density of 600 g / l or more. Low dosage detergents are currently in high demand because they conserve resources and can be marketed in small packages that are more convenient for consumers. However, the degree to which modern detergent products need to be "compact" in nature remains variable. In fact, many consumers, especially in developing countries, continue to prefer higher dosage levels in their respective laundry operations. In general, there are two main types of procedures by which granules or detergent powders can be prepared. The first type of process involves spray drying an aqueous detergent suspension in a spray drying tower to produce highly porous detergent granules (eg, tower process for low density detergent compositions). In the second type of process, the different detergent components are mixed dry, after which they are agglomerated with a binder such as anionic or nonionic surfactant to produce high density detergent compositions (e.g., agglomeration process for produce high density detergent compositions). In the two previous processes, the important factors that determine the density of the resulting detergent granules are the shape, porosity and particle size distribution of said granules, the density of the different starting materials, the shape of the different starting materials. , and its respective chemical composition. There have been many attempts in the art to provide methods that increase the density of detergent granules or powders. Particular attention has been given to the densification of spray-dried granules by post-drying treatment in the tower. For example, an attempt involves an intermittent procedure in which granular or spray-dried detergent powders containing sodium tripolyphosphate and sodium sulfate are densified and spheronized in a Marumerizer®. This apparatus comprises a rotating table, made rough and substantially horizontal, located inside and at the base of a substantially vertical smooth wall cylinder. However, this process is essentially an intermittent process and is therefore less convenient for the large-scale production of detergent powders. More recently, other attempts have been made to provide continuous processes to increase the density of spray-dried or post-tower detergent granules. Typically, said processes require a first apparatus that pulverizes or crushes the granules, and a second apparatus that increases the density of the pulverized granules by agglomeration. Although these procedures achieve the desired increase in density by treating or densifying spray-dried or post-tower granules, are limited in their ability to go further at the surfactant level without a subsequent coating step. In addition, the treatment or densification by "post tower" treatment is not favorable in terms of economy (high cost of capital) and complexity of operation. In addition, all of the aforementioned processes are directed primarily to densify or otherwise process spray-dried granules. Currently, the relative amounts and types of materials subjected to spray drying processes in the production of detergent granules have been limited. For example, it has been difficult to achieve high levels of surfactant in the resulting detergent composition, a feature that facilitates the production of detergents more efficiently. Thus, it would be convenient to have a process by which detergent compositions can be produced without having the limitations imposed by conventional spray drying techniques. To that end, the technique is also replete with descriptions of procedures involving agglomerating detergent compositions. For example, attempts have been made to agglomerate builders by mixing zeolite and / or layered silicates in a mixer to form free flowing agglomerates. Although such attempts suggest that their process can be used to produce detergent agglomerates, they do not provide a mechanism by which starting detergent materials in the form of pastes, liquids and dry materials can effectively agglomerate into crisp and free-flowing detergent agglomerates. Accordingly, there remains a need in the art to have an agglomeration process (other than tower) to continuously produce a detergent composition having high density produced directly from the starting detergent ingredients, and preferably that the density can be achieved adjusting the conditions of the procedure. Likewise, there is a need for such a process that is more efficient, flexible and economical to facilitate the large-scale production of detergents (1) for flexibility in the final density of the final composition and (2) for flexibility in terms of incorporating Several different types of detergent ingredients (especially liquid ingredients) in the procedure. The following references are directed to densify spray-dried granules: Appel et al., US patent. No. 5,133,924 (Lever); Bortolotti et al., Patent of E.U. No. 5,160,657 (Lever); Johnson et al., British Patent No. 1,517,713 (Unilever); and Curtis, European patent application 451.894. The following references are directed to producing detergents by agglomeration: Beujean et al., Document open to the public No. WO93 / 23,523 (Henkel), Lutz et al., US patent. No. 4,992,079 (FMC Corporation), Porasik et al., U.S. Patent. No. 4,427,417 (Korex); Beerse et al., Patent of E.U. No. 5,108,646 (Procter &Gamble); Capeci et al., Patent of E.U. No. 5,366,652 (Procter &Gamble); Hollingsworth et al., European patent application 351,937 (Unilever); Swatling et al., US patent. No. 5,205,958; Dhalewadikar et al., Open document No. WO96 / 04359 (Unilever). For example, open document No. WO93 / 23,523 (Henkel) describes the process comprising pre-agglomeration by means of a low speed mixer and an additional agglomeration step by means of a high speed mixer to obtain a high density detergent composition, in where less than 25% by weight of the granules have a diameter greater than 2 mm. The patent of E.U. No. 4,427,417 (Korex) describes a continuous process for agglomeration that reduces the formation of cake and agglomerates of very large size.
None of the documents of the existing technique provides all the advantages and benefits of the present invention.
BRIEF DESCRIPTION OF THE INVENTION
The present invention meets the aforementioned needs in the art by providing a process that allows to produce a low density granular detergent composition. The present invention also satisfies the aforementioned needs in the art, by providing a process that allows to produce a granular detergent composition for flexibility in the final density of the final composition from an agglomeration process (for example, that is not tower) . The process does not make use of conventional spray drying towers, which is currently limited to produce high load compositions of surfactants. In addition, the process of the present invention is more efficient, economical and flexible with respect to the variety of detergent compositions that may be produced in the process. In addition, the procedure is more amenable to environmental aspects, because it does not use spray-drying towers that typically emit particles and volatile organic compounds into the atmosphere. As used herein, the term "agglomerates" refers to particles formed by agglomerating raw materials with binder, such as surfactants and / or inorganic solutions / organic solvents and polymer solutions. As used herein, the term "average residence time" refers to the following definition: mean residence time (hr) = mass (kg) / flow out (kg / hr) All percentages used herein they are expressed as "percent by weight", unless otherwise indicated. All relationships are weight ratios unless otherwise indicated. As used herein, "comprises" means that other steps and other ingredients may be added that do not affect the result. This term encompasses the terms "consisting of" and "consisting essentially of". According to one aspect of the invention, there is provided a process for preparing a granular detergent composition having a density of at least about 600 g / l. The method comprises the steps of: (a) dispersing a surfactant and coating the surfactant with fine powders having a diameter of 0.1 to 500 microns, in a mixer in which the conditions include (i) from about 2 to about 50 seconds of average residence time, (ii) from about 4 to about 25 m / s peak speed and (ii) from about 0.15 to about 7 kj / kg energy condition, where first agglomerates; (b) completely mixing the first agglomerates in a mixer where the conditions of the mixer include (i) from about 0.5 to about 15 minutes of average residence time and (ii) from about 0.15 to about 7 kj / kg of energy condition , where second agglomerates are formed; and (c) sprinkling finely atomized liquid on the second agglomerates in a mixer, wherein the conditions of the mixer include (i) from about 0.2 to about 5 seconds of average residence time, (ii) from about 10 to about 30 m / s of tip speed, and (iii) from about 0.15 to about 5 kj / kg of energy condition. Granular detergent compositions having a density greater than at least about 600 g / l, produced by any of the process modalities described in the present specification, are also provided. Accordingly, an object of the invention is to provide a method for continuously producing a detergent composition having flexibility with respect to the density of the final products, controlling energy input, residence time condition, and tip speed condition. the mixers. It is also an object of the invention to provide a process that is more efficient, flexible and economical to facilitate large-scale production. These and other concomitant objects, features and advantages of the present invention will become apparent to those skilled in the art upon reading the following detailed description of the preferred embodiment and the appended claims.
DETAILED DESCRIPTION OF THE PREFERRED MODALITY
The present invention is directed to a process that produces free flowing granular detergent agglomerates having a density of at least about 600 g / l. The process produces granular detergent agglomerates from an aqueous and / or non-aqueous surfactant which is then coated with fine powders having a diameter of 0.1 to 500 microns, to obtain low density granules.
Procedure First step fStep (a) 1 In the first step of the process, one or more aqueous and / or non-aqueous surfactants, which are in the form of powder, paste and / or liquid, and powders, are introduced into a first mixer. fines having a diameter of 0.1 to 500 microns, preferably of about 1 to about 100 microns, to make agglomerates. (The definition of surfactants and fine powders is given in detail below). Optionally, a stream of internal recirculation of powders having a diameter from about 0.1 to about 300 microns can be introduced into the mixer, in addition to the fine powders, which can be generated from an "optional conditioning procedure (i.e., one step). drying and / or cooling), which is an additional step after the process of the present invention. The amount of said internal powder recirculation stream can be from 0 to about 60% by weight of the final product. In another embodiment of the invention, the surfactant (s) can be initially introduced into a mixer or premixer (eg, a conventional worm extruder or other similar mixer) before the above, after which the mixed detergent materials are introduced into the mixer of the first step as described herein to achieve agglomeration. Generally speaking, preferably the average residence time in the first mixer is on the scale of about 2 to about 50 seconds, and the tip speed of the first mixer is on the scale of about 4 m / s to about 25 m / s, the energy per unit mass of the first mixer (energy condition) is about 0.15 kj / kg to about 7 kj / kg, most preferably, the average residence time of the first mixer is on the scale of about 5 to about 30 seconds, and the tip speed of the first mixer is on the scale of about 6 m / s to about 18 m / s, the energy per unit mass of the first mixer (energy condition) is on the scale of about 0.3 kj / kg to about 4 kj / kg, and most preferably, the average residence time of the first mixer is on the scale of about 5 to about 20 seconds, and the tip speed of the first mix The scale is from about 8 m / s to about 18 m / s, and the energy per unit mass of the first mixer (energy condition) is on the scale of about 0.3 kj / kg to about 4 kj / kg . Examples of mixers for the first step can be any type of mixer known to those skilled in the art, as long as the mixer can maintain the condition mentioned above for the first step. An example can be the Lódige CB mixer, manufactured by the company Lódige (Germany). As a result of the first step, agglomerates having fine powders are obtained on the surface thereof (first agglomerates).
Sequndo paso TPaso (b) V. The first agglomerates are introduced into a second agglomeration mixer. Namely, the product resulting from the first mixer is mixed and subjected to shear stress completely to round and grow the agglomerates in the second mixer. Optionally, about 0-10%, most preferably about 2-5%, of detergent powdered ingredients of the type used in the first step and / or other detergent ingredients can be added to the second step. Preferably, grinders that are fixable to the second mixer can be used to break up and separate the undesirable larger sized agglomerates. Therefore, the process that includes the second mixer with grinders is useful to obtain a reduced amount of agglomerates of larger size as final products, and said method is a preferred embodiment of the present invention. Generally speaking, preferably the average residence time of the second mixer is on the scale of about 0.5 to about 15 minutes, and the energy per unit mass of the second mixer (energy condition) is on the scale of about 0.15. at about 7 kj / kg, most preferably, the average residence time of the second mixer is on the scale of about 3 to about 6 minutes and the energy per unit mass of the second mixer (energy condition) is on the scale around from 0.15 to about 4 kj / kg. Examples of the second mixer can be any type of mixer known to those skilled in the art, as long as the mixer can maintain the condition mentioned above for the second step. An example can be the Lódige KM mixer manufactured by the company Lódige (Germany).
Third step (Step c) The agglomerates of the second step, second agglomerates, are introduced in a third mixer. Then finely atomized liquid is sprinkled on the agglomerates in the third mixer. If excess fine powders formed in the first step and / or the second step are optionally added in this step, it is useful to spray the finely atomized liquid to bind the very fine powders on the agglomerates. About 0-10% can be added to the second mixer, most preferably about 2-5% powdered detergent ingredients of the type used in the first step, the second step and / or other detergent ingredients. Generally speaking, preferably, the average residence time of the third mixer is on the scale of about 0.2 to about 5 seconds and the tip speed of the third mixer is on the scale of about 10 m / s to about 30 m / s, the energy per unit mass of the third mixer (energy condition) is on the scale of about 0.15 kj / kg to about 5 kj / kg, most preferably, the average residence time of the third mixer is on the scale of about 0.2 to about 5 seconds, and the tip speed of the third mixer is on the scale of about 10 m / s to about 30 m / s, the energy per unit mass of the third mixer (power condition) is in the scale of about 0.15 kj / kg to about 5 kj / kg, and most preferably, the average residence time of the third mixer is on the scale of about 0.2 to about 5 seconds, the speed of the point a of the third mixer is on the scale of about 15 m / s to about 26 m / s, the energy per unit mass of the third mixer (energy condition) is on the scale of about 0.15 kj / kg to about 2 kj / kg. The examples of the third mixer can be any type of mixer known to those skilled in the art, as long as the mixer can maintain the condition mentioned above for the third step. An example can be the Flexomic model manufactured by the company Schugi (Holland). As a result of the third step, a resulting agglomerated product having a density of at least 600 g / l can be obtained. Optionally, the resulting product can then be subjected to drying, cooling and / or grinding. In case the process of the present invention is carried out using (1) a CB mixer having flexibility to inject at least two liquid ingredients; (2) a KM mixer having flexibility to inject at least one liquid ingredient; (3) A Schugi mixer having flexibility to inject at least two liquid ingredients, the process can incorporate five different types of liquid ingredients in the process. Therefore, the proposed method is beneficial for the person skilled in the art to incorporate, in granule preparation processes, starting detergent materials that are in liquid form and are very expensive and sometimes more difficult in terms of handling and / or storage than solid materials.
DETERGENT DETERGENT MATERIALS The total amount of the surfactants in the products prepared by the present invention, which include the following finely atomized liquid detergent materials and adjunct detergent ingredients, is generally from about 5% to about 60%, more preferably from about 12% to about 40%, most preferably from about 15% to about 35%, in total amount of the final product obtained by the process of the present invention. The surfactants that must be included in the above process can be from any point in the process of the present invention, for example, any of the first step, the second step and / or the third step of the present invention.
Detergent surfactant (aqueous / non-aqueous) The amount of the surfactant of the present process can be from about 5% to about 60%, more preferably from about 12% to about 40%, most preferably from about 15% to about 35%, in the total amount of the final product obtained by the process of the present invention. The surfactant of the present process, which is used as the starting detergent material mentioned above in the first step, is in the form of powder, paste or liquid raw material. The surfactant itself is preferably selected from anionic, nonionic, zwitterionic, amphoteric and cationic classes, and compatible mixtures thereof. Detergent surfactants useful herein are described in the U.S. patent. 3,664,961, Norris, issued May 23, 1972, and the US patent. 3,929,678, Laughlin et al., Issued December 30, 1975, which are incorporated herein by reference. Useful cationic surfactants also include those described in the U.S. patent. 4,222,905, Cockrell, issued September 16, 1980, and in the US patent. 4,239,659, Murphy, issued December 16, 1980, which are also incorporated herein by reference. Of the surfactants, anionics and nonionics are preferred, with anionics being more preferred. Non-limiting examples of the preferred anionic surfactants useful in the present invention include conventional Ci iC-jg alkylbenzene sulphonates ("LAS"), primary, branched-chain and random C 10 -C 20 alkyl sulfates ("AS"), the secondary alkyl sulfates (2,3) of C10-C18 of the formula CH3 (CH2) x (CHOS? 3-M +) CH3 and CH3 (CH2) and (CHOS? 3-M +) CH2CH3) where x and (y + 1 ) are integers of at least about 7, preferably at least about 9, and M is a solubilization cation in water, especially sodium, unsaturated sulfates such as oleyl sulfate and C10-C18 alkylalkoxy sulfates ("AEXS"; especially ethoxysulfates EO 1-7). Useful anionic surfactants also include water-soluble salts of 2-acyloxy-alkan-1-sulfonic acids containing from about 2 to 9 carbon atoms in the acyl group, and from about 9 to about 23 carbon atoms in the alkane portion; water-soluble salts of olefin sulphonates containing about 12 to 24 carbon atoms; and beta-alkyloxy-alcansulfonates containing from about 1 to about 3 carbon atoms in the alkyl group, and about 8 to 20 carbon atoms in the alkane portion. Optionally, other examples of surfactants useful in the paste of the invention include C10-C18 alkylalkoxycarboxylates (especially the EO 1-5 ethoxycarboxylates), the glycerol ethers of C < |) - Cl8 > C10-C18 alkyl polyglycosides and their corresponding sulfated polyglycosides, and aliphasulfonated fatty acid esters of Ci2-C- | 8- If desired, conventional amphoteric and nonionic surfactants such as C- | 2-Ci8 alkyleoxylates ( "AE") including the so-called narrow peak alkyl ethoxylates and the Cβ-Ci 2 alkylphenolalkoxylates (especially ethoxylates and ethoxy / mixed propoxy), C-10-C18 amine oxides. and the like, can also be included in the overall compositions. The N-alkyl polyhydroxy fatty acid amides of CIQ-CI8 can also be used. Typical examples include the N-methylglucamides of C- | 2- i8- See WO 9,206,154. Other surfactants derived from sugar include the N-alkoxy polyhydroxy fatty acid amides, such as N-3-methoxypropyl glucamide of Q-C-N-N-propyl glucamides to N-hexyl of C-12-C18. can use for low foam formation. Conventional C-IQ-C20 soaps can also be used. If high foaming is desired, C &I soaps can be used. ? o-C- | 6 branched chain. Mixtures of anionic and nonionic surfactants are especially useful. Other conventional useful surfactants are mentioned in the normal texts. Cationic surfactants may also be used as a detergent surfactant herein, and suitable quaternary ammonium surfactants are selected from C6-C- | 6 mono-N-alkyl or alkenyl ammonium surfactants. preferably CQ-C < Q, wherein the remaining N positions are substituted with methyl, hydroxyethyl or hydroxypropyl groups. Ampholytic surfactants can also be used as the detergent surfactant herein, which include aliphatic derivatives of heterocyclic secondary and tertiary amines; zwitterionic surfactants including derivatives of aliphatic quaternary ammonium, phosphonium and sulfonium compounds; water-soluble salts of esters of fatty acids alphasulfonated; alkyl ether sulfates; water-soluble salts of olefin sulfonates; beta-alkyloxy-alcansulfonates; betaines having the formula R (R1) 2N + R2C00 ~ > wherein R is a hydrocarbyl group of Cß-Cis. preferably a C10-C16 alkyl group or C10-C16 alkylacylamido group R1 is typically C 1 -C 3 alkyl, preferably methyl, and R 2 is a C 1 -C 5 hydrocarbyl group, preferably C 1 -C 3 alkylene group, more preferably an alkylene group of C-1-C2. Examples of suitable betaines include coconut acylamidopropyl dimethylbetaine; hexadecyldimethylbetaine; acylamidopropyl betaine of C-12-14; C8-C14 acylamidohexyldietilbetaine; 4 [acylmethylamidodiethylammonium of C- | 4- | 6] -1-carboxybutane; C- | g-Ci8 acylamidodimethylbetaine; C12-16 acylamidopentanodiethylbetaine; and acylmethylamidodimethylbetaine from C < 2"Preferred betaines are C12-I8 dimethylammonium hexanoate and C10-C18 acylamidopropane (or ethane) dimethyl (or diethyl) betaines; and sultaines having the formula R (R1) 2N + R2S03"where R is a hydrocarbyl group of Cg-C-iß. preferably a C10-16 alkyl group, more preferably a C12-C13 alkyl group, each R1 is typically C1-C3 alkyl, preferably methyl, and R2 is a C -CQ hydrocarbyl group, preferably a C1-C3 alkylene or, preferably, a hydroxyalkylene group of C1-C3. Examples of suitable sultaines include C12-C14 dimethylammonium-2-hydroxypropyl sulphonate, C12-C14 amidopropylammonium-2-hydroxypropyl-sultaine, C12-C14 dihydroxyethylammonium propanesulfonate, and C16-C18 dimethylammonium hexasulfonate. the amidopropylammonium-2-hydroxypropyl sultaine of Ci2-Ci4- being preferred
Fine powders The amount of fine powders of the present process, which are used in the first step, may be from about 94% to 30%, preferably from 86% to 54%, in a total amount of the starting material for the first step . The starting fine powders of the present process are preferably selected from the group consisting of pulverized soda ash, powdered sodium tripolyphosphate (STPP), hydrated tripolyphosphate, ground sodium sulphates, aluminosilicates, layered crystalline silicates, nitrilotriacetates (NTA), phosphates , precipitated silicates, polymers, carbonates, citrates, pulverized surfactants (such as pulverized alkanesulfonic acids) and internal recirculating powder from the process of the present invention, wherein the average diameter of the powder is 0.1 to 500 microns, preferably 1 at 300 microns, more preferably from 5 to 100 microns. In case of using STPP hydrated as fine powders of the present invention, STPP which is hydrated to a level of not less than 50% is preferred: The aluminosilicate ion exchange materials used herein as builder have a high capacity of Calcium ion exchange and a high exchange rate. Without being intended to be limited by theory, it is thought that said high capacity and rate of calcium ion exchange are a function of several interrelated factors that derive from the method by which the aluminosilicate ion exchange material is produced. In this regard, the aluminosilicate ion exchange materials used herein are preferably produced in accordance with Corkill et al., U.S. Pat. No. 4,605,509 (Procter &Gamble), the disclosure of which is incorporated herein by reference. Preferably, the aluminosilicate ion exchange material is in the "sodium" form, since the potassium and hydrogen forms of the present aluminosilicate do not exhibit a capacity and an ion exchange rate as high as provided by the sodium form. Additionally, preferably the aluminosilicate ion exchange material is in a very dry form to facilitate the production of crisp detergent agglomerates as described herein. The aluminosilicate ion exchange materials used herein preferably have particle size diameters that optimize their effectiveness as builders. The term "particle size diameter", as used herein, represents the average diameter of particle size of a given aluminosilicate ion exchange material determined by conventional analytical techniques, such as microscopic determination and with scanning electron microscopy. (SEM). The preferred particle size diameter of the aluminosilicate is from about 0.1 microns to about 10 microns, more preferably from about 0.5 microns to about 9 microns. Most preferably, the diameter of particle size is from about 1 miera to about 8 micras. Preferably, the aluminosilicate ion exchange material has the formula:
Naz [(Al? 2) z (Si? 2) and] xH2O
where z and y are integers of at least 6, the molar ratio z: y is from about 1 to about 5, and x is from about 10 to about 264. More preferably, the aluminosilicate has the formula:
Na12 [(Al? 2) i 2 (SiO2) i2] xH2?
wherein x is from about 20 to about 30, preferably about 27. These preferred aluminosilicates are commercially available, for example, under the designations Zeolite A, Zeolite B and Zeolite X. Alternatively, naturally occurring aluminosilicate ion exchange materials. or which are synthetically derived and suitable for use herein, can be obtained as described in Krummel et al., US Pat. No. 3, 985,669, the disclosure of which is incorporated herein by reference. The aluminosilicates used herein are further characterized by their ion exchange capacity which is at least about 200 mg hardness equivalent of CaCOß / g, calculated on an anhydrous basis, and which is preferably on a scale of about 300 to 352 mg hardness equivalents of CaCO3 / g. Additionally, the aluminosilicate ion exchange materials of the present are further characterized by their calcium ion exchange rate, which is at least about 2 grains of Ca ++ / 3.785 liters / minute / gram / 3.785 liters, and more preferably on a scale of about 2 grains of Ca ++ / 3.785 liters / minute / gram / 3.785 liters to about 6 grains of Ca ++ / 3.785 liters / minute / gram / 3.785 liters.
Finely atomized ligule The amount of the finely atomized liquid of the present process may be from about 1% to about 10% (on an active basis), preferably from about 2% to about 6% (on an active basis) in a total amount of the final product obtained by the process of the present invention. The finely atomized liquid of the present process can be selected from the group consisting of liquid silicate, anionic or cationic surfactants which are in liquid form, aqueous or non-aqueous polymer solutions, water, and mixtures thereof. Other optional examples for the finely atomized liquid of the present invention may be a solution of sodium carboxymethylcellulose, polyethylene glycol (PEG) and dimethylenetriaminepentamethylphosphonic acid (DETMP) solutions. Preferable examples of the anionic surfactant solutions that can be used as the finely atomized liquid in the present invention are HLAS of about 88 to 97% concentration, NaLAS of about 30 to 50% concentration, AE3S solution of about 28 % concentration, liquid silicate of approximately 40 to 50% concentration, etc. Cationic surfactants may also be used as the finely atomized liquid herein, and suitable quaternary ammonium surfactants are selected from C6-C- | 6 most preferably N-alkyl or alkenyl ammonium surfactants from CQ-C < Q, wherein the remaining N positions are substituted with methyl, hydroxyethyl or hydroxypropyl groups. Preferable examples of the aqueous or non-aqueous polymer solutions that can be used as the finely atomized liquid in the present invention are modified polyamines comprising a polyamine skeleton corresponding to the formula:
H
I I [H2N-R] n + 1- [N-R] m- [N-R] n-NH2
having a modified polyamine formula V (n + < |) WmYnZ or a polyamine skeleton corresponding to the formula:
H R H2N-R] n-k + 1- [N-R] m- [N-R] n- [N-R] k-NH2
having a modified polyamine formula V (n_k +?) WmYnY'k Z, wherein k is less than or equal to n, said polyamine skeleton, before modification, has a molecular weight greater than about 200 daltons, wherein: ) units V are terminal units that have the formula:
E X "O i T E-N-R- or E-N + -R- or E-N-R-
i) the units W are skeleton units that have the formula:
E X "O T -N-R- or -N + -R- or -N-R- iii) the Y units are branching units having the formula:
E X "O i t -N-R- or -N + -R- or -N-R-
;Y
iv) Z units are terminal units that have the formula:
X "-N-E- or N +
E E
wherein the skeletal linker units R are selected from the group consisting of C2-C12 alkylene. C4-C12 alkenylene. C3-C12 hydroxyalkylene. C 4 -C 12 dihydroxyalkylene-C 8 -C 12 dialkylarylene. - (R10) xR1-, - (R1?) XR5 (OR1) X) - (CH2CH (OR2) CH2?) Z (R1O) and R1- (OCH2CH (OR2) CH2) w ",
C (O) (R) rC (O) -, -CH2CH (OR2) CH2-, and mixtures thereof; wherein R1 is C2-Ce alkylene, and mixtures thereof; R is hydrogen, - (R 1 O) xB, and mixtures thereof; is C-I alkyl-C-J S. C7-C12 arylalkyl. to ilo substituted with C7-C12 alkyl. C6-C12 aryl and mixtures thereof; R 4 is C < | - C < | 2. C4-C12 alkenylene. C8-C12 arylalkylene. Cg-C-io arylene and mixtures thereof; R ^ is C1-C12 alkylene. C3-C12 hydroxyalkylene. C4-C2 dihydroxyalkylene, dialkylarylene of Cd-C ^, -C (O) -, -C (0) NHR6NHC (O) -, -R1 (OR1) -, -C (0) (R) rC (O ) -, CH2CH (OH) CH2-, CH2CH (OH) CH2? - (R10) and R1OCH2CH (OH) CH2- and mixtures thereof; R ^ is C 2 -C 12 alkylene or C 1 -C 4 arylene. the E units are selected from the group consisting of hydrogen, C1-C22 alkyl. C3-C22 alkenyl. C7-C22 arylalkyl. C2-C22 hydroxyalkyl. - (CH2) pC? 2M, - (CH2) qSO3M, -CH (CH2C02M) CO2M, - (CH2) pPO3M, - (R1O) xB, -C (O) R3, and mixtures thereof; oxide; B is hydrogen, Ci-Cß alkyl, - (CH 2) qS? 3M, - (CH 2) pC02M, - (CH 2) q (CHS? 3M) CH 2 S? 3M, - (CH 2) q- (CHS? 2M) CH 2 SO 3 M , - (CH2) pPO3M, -PO3M and mixtures thereof; M is hydrogen or a cation soluble in water in an amount sufficient to satisfy the balance of the charge; X is a water soluble anion; m has the value of 4 to about 400; n has the value from 0 to about 200; p has the value of 1 to 6, q has the value of 0 to 6; r has the value of 0 or 1; w has the value of 0 or 1; x has the value of 1 to 100; "y" has the value of 0 to 100; z has the value of 0 or 1. An example of the most preferred polyethylene imines would be a polyethylenimine having a molecular weight of 1800, which is further modified by ethoxylation to a degree of about 7 ethyleneoxy residues per nitrogen (PEI 1800, E7 ). It is preferred that the above polymer solution be premixed with an anionic surfactant such as NaLAS. Other preferred examples of the aqueous or non-aqueous polymer solutions which can be used as the finely atomized liquid in the present invention are polymeric polycarboxylate dispersants which can be prepared by polymerizing or copolymerizing suitable unsaturated monomers, preferably in their acid form. Unsaturated monomeric acids which can be polymerized to form suitable polymeric polycarboxylates include acrylic acid, maleic acid (or maleic anhydride), fumaric acid, taconic acid, aconitic acid, mesaconic acid, citraconic acid and methylenemalonic acid. The presence, in the polymeric polycarboxylates of the present, of monomer segments which do not contain carboxylate radicals such as vinyl methyl ether, styrene, ethylene, etc., is adequate, provided that said segments do not constitute more than about 40% by weight of the polymer. Preferred are homopolymeric polycarboxylates having molecular weights greater than 4000, such as those described below. Particularly suitable homopolymeric polycarboxylates can be derived from acrylic acid. Said polymers based on acrylic acid, which are useful herein, are the water-soluble salts of polymerized acrylic acid. The average molecular weight of said polymers in acid form preferably ranges from more than 4,000 to 10,000, preferably from more than 4,000 to 7,000, and most preferably from more than 4,000 to 5,000. The water-soluble salts of said acrylic acid polymers may include, for example, the alkali metal, ammonium and substituted ammonium salts. Copolymeric polycarboxylates such as a copolymer based on acrylic acid / maleic acid can also be used. Such materials include the water-soluble salts of the copolymer of acrylic acid and maleic acid. The average molecular weight of said copolymers in acid form preferably ranges from about 2,000 to 100,000, more preferably from about 5,000 to 75,000, and most preferably from about 7,000 to 65,000. The ratio of acrylate: maleate segments in said copolymers will generally vary from about 30: 1 to about 1: 1, more preferably from about 10: 1 to 2: 1. The water-soluble salts of said copolymers of acrylic acid: maleic acid may include, for example, the alkali metal, ammonium and substituted ammonium salts. It is preferred that the above polymer solution be premixed with an anionic surfactant such as LAS.
Auxiliary detergent ingredients The starting detergent material in the present process may include additional detergent ingredients, and / or any number of additional ingredients may be incorporated into the detergent composition during the subsequent steps of the present process. These auxiliary ingredients include other detergency builders, bleaches, bleach activators, foaming enhancers, or foam suppressors, anti-rust and anti-corrosion agents, soil suspending agents, soil removal agents, germicides, pH adjusting agents, alkalinity sources without detergency builder, chelating agents, smectite clays, enzymes, enzyme stabilizing agents, and perfumes. See the US patent. 3,936,537, issued February 3, 1976 to Baskerville, Jr., et al., Incorporated herein by reference. Other detergency builders can generally be selected from the various water-soluble alkali metal, ammonium or ammonium phosphates, polyphosphates, polyphosphonates, carbonates, borates, polyhydroxysulfonates, polyacetates, carboxylates and polycarboxylates substituted. Alkali metal, especially sodium, salts of the above are preferred. Preferred for use herein are the phosphates, carbonates, fatty acids of C- | o-18 > polycarboxylates, and mixtures thereof. More preferred are sodium tripolyphosphate, tetrasodium pyrophosphate, citrate, tartrate, mono- and di-succinates, and mixtures thereof (see below). Compared to the amorphous sodium silicates, the crystallized sodium silicate laminates exhibit a clearly increased calcium and magnesium ion exchange capacity. In addition, stratified sodium silicates prefer magnesium ions over calcium ions, a feature necessary to ensure that substantially all of the "hardness" is removed from the wash water. However, these layered crystalline sodium silicates are generally more expensive than amorphous silicates, as well as other detergency builders. Consequently, in order to provide an economically feasible laundry detergent, the proportion of the crystalline layered sodium silicates used must be judiciously determined. Said stratified sodium silicates are described in Corkill et al., U.S. No. 4,605,509, previously incorporated herein by reference. Specific examples of inorganic phosphate builders are sodium and potassium tripolyphosphate, pyrophosphate, polymeric metaphosphate having a degree of polymerization of about 6 to 21, and orthophosphates. Examples of polyphosphonate builders are the sodium and potassium salts of ethylene diphosphonic acid, the sodium and potassium salts of ethane-1-hydroxy-1,1-diphosphonic acid, and the sodium and potassium salts of acid ethane-1, 1, 2-triphosphonic. Other phosphorus builder compounds are described in the U.S. Patents. 3,159,581; 3,213,030; 3,422,021; 3,422,137; 3,400,176 and 3,400,148, all of which are incorporated herein by reference. Examples of inorganic builders without phosphorus are tetraborate decahydrate and silicates having a weight ratio of Si 2: alkali metal oxide of about 0.5 to about 4.0, preferably about 1.0 to about 2.4. The water-soluble organic builders without phosphorus useful herein include the various polyacetates, carboxylates, polycarboxylates and polyhydroxysulfonates of alkali metal, ammonium and substituted ammonium. Examples of polyacetate and polycarboxylate builders are the sodium, potassium, lithium, ammonium and substituted ammonium salts of ethylenediaminetetraacetic acid, nitrilotriacetic acid, oxydisuccinic acid, melific acid, benzene polycarboxylic acids, and citric acid. Polycarboxylate polymeric detergency builders are described in the U.S. patent. 3,308,067, Diehl, issued March 7, 1967, the disclosure of which is incorporated herein by reference. Such materials include the water-soluble salts of homo- and co-polymers of aliphatic carboxylic acids such as maleic acid, itaconic acid, mesaconic acid, fumaric acid, aconitic acid, citraconic acid and methylenemalonic acid. Some of these materials are useful as the water-soluble anionic polymer as described below, but only if they are in intimate admixture with the anionic surfactant without soap. Other polycarboxylates suitable for use herein are the polyacetal carboxylates described in the U.S. patent. 4,144,226, issued March 13, 1979 to Crutchfield et al., And the US patent. 4,246,495, issued March 27, 1979 to Crutchfield et al., Which are incorporated herein by reference. These polyacetal carboxylates can be prepared by bringing together a glyoxylic acid ester and a polymerization initiator under polymerization conditions. The resulting polyacetal carboxylate ester is then attached to chemically stable end groups to stabilize the polyacetal carboxylate against rapid depolymerization in alkaline solution, converted to the corresponding salt, and added to a detergent composition. Particularly preferred polycarboxylate builders are ether carboxylate builder compositions which comprise a combination of tartrate monosuccinate and tartrate disuccinate described in the US patent. 4,663,071, Bush et al., Issued May 5, 1987, the disclosure of which is incorporated herein by reference. Bleaching agents and activators are described in the U.S. patent. 4,412,934, Chung et al., Issued November 1, 1983, and in the US patent. 4,483,781, Hartman, issued November 20, 1984, which are incorporated herein by reference. Chelating agents are also described in the U.S. patent. 4,663,071, Bush et al., In column 17, line 54 to column 18, line 68, incorporated herein by reference. Foam modifiers are also optional ingredients, and are described in the US patents. 3,933,672, issued January 20, 1976 to Bartolotta et al., And 4,136,045, issued January 23, 1979 to Gault et al., Which are incorporated herein by reference. Smectite clays suitable for use herein are described in the U.S. patent. 4,762,645, Tucker et al., Issued August 9, 1988, column 6, line 3 to column 7, line 24, incorporated herein by reference. Other builders suitable for use herein are indicated in the Baskerville patent, column 13, line 54 to column 16, line 16, and in the US patent. 4,663,071, Bush et al., Issued May 5, 1987, which are incorporated herein by reference.
Optional steps of the method Optionally, the method may comprise the step of spraying an additional binder in one or more of the first, second and / or third mixers for the present invention. A binder is added for the purpose of improving agglomeration by providing a "binder" or "adherent" agent for the detergent components. The binder is preferably selected from the group consisting of water, anionic surfactants, nonionic surfactants, liquid silicates, polyethylene glycol, polyvinylpyrrolidone, polyacrylates, citric acid, and mixtures thereof. Other suitable binding materials including those included herein are described in Beerse et al., U.S. No. 5,108,646 (Procter &Gamble Co.), the disclosure of which is incorporated herein by reference. Other optional steps contemplated by the present method include screening the larger sized detergent agglomerates in a screening apparatus that can take various forms including, but not limited to, conventional screens selected for the desired particle size of the finished detergent product. Other optional steps include conditioning the detergent agglomerates by subjecting them to further drying, by the apparatus described above. Another optional step of the present method is to terminate the resulting detergent agglomerates by various methods including spraying and / or mixing other conventional detergent ingredients. For example, the finishing step encompasses the spraying of perfumes, brighteners and enzymes onto the finished agglomerates to provide a more complete detergent composition. Such techniques and ingredients are well known in the art. Another optional step in the process includes a surfactant paste structuring process, for example, curing an aqueous anionic surfactant paste, incorporating a paste hardening material by the use of an extruder, prior to the process of the present invention. The details of the surfactant paste structuring process are described in the associated application No. PCT / US96 / 15960 (filed October 4, 1996). To make the present invention more easily understood, reference is made to the following examples, which are intended to be illustrative only and not to limit the scope of the present invention.
EXAMPLES
EXAMPLE 1
The following is an example to obtain agglomerates that have high density, using the CB Lódige mixer (CB-30), followed by the Mixer KM Code (KM-600), and then the Schugi FX-160 mixer. [Step 1] 250-270 kg / hr of aqueous surfactant paste of coconut fatty alcohol sulfate (C-12-C18, concentration 71.5%) are dispersed by means of the shank instruments of a CB-30 mixer together with 220 kg / hr of sprayed STPP (average particle size of 40 to 75 microns), 160 - 200 kg / hr of micronized soda ash (average particle size 15 microns), 80 - 120 kg / hr of ground sodium sulfate (size 15 micron particle medium) and 200 kg / hr of internal recirculation powder flow. The surfactant paste is introduced at approximately 40-52 ° C, and the powders are introduced at room temperature. The conditions of the CB-30 mixer are as follows: Average residence time: 10-18 seconds Peak speed: 7.5 to 14 m / s Power condition: 0.5 - 4 kj / kg Mixer speed: 550 - 900 rpm the jacket: 30 ° C [Step 2] The agglomerates of the mixer CB-30 are introduced to the mixer KM-600 for additional agglomeration, for rounding and growth of the agglomerates. KM 0 - 60 kg / hr of ground soda ash (average particle size 15 microns), or 0-30 kg / hr of zeolite can also be added to the mixer. Crushers can be used for the KM mixer to reduce the amount of agglomerates of larger size. The conditions of the KM mixer are as follows: Average residence time: 3-6 minutes Power condition: 0.15 - 2 kj / kg Mixer speed: 100 - 150 rpm Sleeve temperature: 30-40 ° C [Step 3] The agglomerates of the KM mixer are introduced into the Schugi FX-160 mixer. 30 kg / hr of HLAS (an acid precursor of C1-C18 alkylbenzene sulfonate is dispersed; 95% concentration) as a finely atomized liquid in the Schugi mixer at approximately 50-60 ° C. Schugi mixer is added 20-80 kg / hr of soda ash. The conditions of the Schugi mixer are the following: Average residence time: 0.2-5 seconds Peak speed: 16-26 m / s Power condition: 0.15 - 2 kj / kg Mixer speed: 2000 - 3200 rpm The resulting granules step 3 have a density of about 700 g / l and optionally can be subjected to an optional process of cooling, drying, sizing and / or grinding.
EXAMPLE 2
The following is an example to obtain agglomerates that have high density, using the mixer Lódige CB (CB-30), followed by the mixer Lódige KM (KM-600), and then the Schugi FX-160 mixer. [Step 1] 15 kg / hr-30 kg / hr of HLAS (an acid precursor of Cn-Ciß alkylbenzenesulfonate, concentration, 95%) are dispersed at about 50 ° C, and 250-270 kg / hr of aqueous paste of CFAS (coconut fatty alcohol sulfate surfactant, (C-12-C18, concentration 70%), using the spike instruments of a CB-30 mixer together with 220 kg / hr of pulverized STPP (average particle size from 40 to 75) microns), 160 - 200 kg / hr of ground soda ash (average particle size 15 microns), 80 - 120 kg / hr of ground sulphate (average particle size of 15 microns) and 200 kg / hr of powder the internal recirculation current The surfactant paste is introduced at approximately 40 - 52 ° C, and the powders are introduced at room temperature The conditions of the CB-30 mixer are as follows: Average residence time: 10-18 seconds tip: 7.5 to 14 m / s Power condition: 0.5 - 4 kj / kg Mixer speed: 550 - 900 rpm Sleeve temperature: 30 ° C [Step 2] The agglomerates of the mixer CB-30 are introduced to the mixer KM-600 for additional agglomeration, for rounding and growth of the agglomerates. 0 - 60 kg / hr of milled soda ash (average particle size of 15 microns) are also added to the KM mixer. Plows can be plowed as mixing elements in the KM mixer. Crushers can be used in the KM mixer to reduce the amount of agglomerates of larger size. The conditions of the KM mixer are as follows: Average residence time: 3-6 minutes Power condition: 0.15 - 2 kj / kg Mixer speed: 100 - 150 rpm Sleeve temperature: 30-40 ° C [Step 3] The agglomerates of the KM-600 mixer are introduced to the Schugi FX-160 mixer. 35 kg / hr of neutralized liquid AE3S (concentration, 28%) is dispersed as a finely atomized liquid in the Schugi mixer at about 30 to 40 ° C. 20-80 kg / hr of soda ash are added to the Schugi mixer. The conditions of the Schugi mixer are the following: Average residence time: 0.2 - 5 seconds Top speed: 16 - 26 m / s Energy condition: 0.15 - 2 kj / kg Mixer speed: 2000 - 3200 rpm The resulting granules step 3 have a density of about 700 g / l, and can optionally be subjected to the optional processes of cooling, drying, sizing and / or grinding. Having thus described the invention in detail, it will be apparent to those skilled in the art that various changes can be made without departing from the scope of the invention, and that the latter should not be considered to be limited to what is described in the specification.
Claims (9)
1. - A non-tower process for preparing a granular detergent composition having a density of at least about 600 g / l, comprising the steps of: (a) dispersing a surfactant and coating the surfactant with fine powders that have a diameter of 0.1 to 500 microns, in a mixer in which mixer conditions include (i) from about 2 to about 50 seconds of average residence time, (ii) from about 4 to about 25 m / s of tip speed and (iii) from about 0.15 to about 7 kj / kg of energy condition, where first agglomerates are formed; (b) completely mixing the first agglomerates in a mixer where the conditions of the mixer include (i) from about 0.5 to about 15 minutes of average residence time and (ii) from about 0.15 to about 7 kj / kg of energy condition , where second agglomerates are formed; and (c) sprinkling finely atomized liquid on the second agglomerates in a mixer, wherein the conditions of the mixer include (i) from about 0.2 to about 5 seconds of average residence time, (ii) from about 10 to about 30 m / s of tip speed, and (iii) from about 0.15 to about 5 kj / kg of energy condition.
2. A process according to claim 1, characterized in that said surfactant is selected from the group consisting of anionic surfactant, nonionic surfactant, cationic surfactant, zwitterionic surfactant, ampholytic surfactant and mixtures thereof.
3. A process according to claim 1, characterized in that said surfactant is selected from the group consisting of alkylbenzenesulfonates, alkylalkoxy sulfates, alkylethoxylates, alkyl sulfates, coconut fatty alcohol sulfates and mixtures thereof.
4. A process according to claim 1, characterized in that an aqueous or nonaqueous polymer solution is dispersed with said surfactant in step (a).
5. A process according to claim 1, characterized in that the fine powders are selected from the group consisting of soda ash, powdered sodium tripolyphosphate, hydrated tripolyphosphate, sodium sulfates, aluminosilicates, layered crystalline silicates, phosphates, precipitated silicates , polymers, carbonates, citrates, nitrilotriacetates, pulverized surfactants and mixtures thereof.
6. A process according to claim 1, characterized in that the finely atomized liquid is selected from the group consisting of liquid silicates, anionic surfactants, cationic surfactants, aqueous polymer solutions, non-aqueous polymer solutions, water and mixtures thereof. same.
7. The process according to claim 1, characterized in that in step (a) and / or step (b) fine powders are formed in excess, and in which excess fine powders are added in step (c)
8. A method according to claim 1, characterized in that it is a continuous process in which the product resulting from step (c) is additionally subjected to a cooling and / or drying step in which a powder current is created of internal recirculation, and wherein also the internal recirculation powder stream is added to step (a).
9. A granular detergent composition prepared according to the method of claim 1.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
USUS96/15881 | 1996-10-04 | ||
PCPCT/US1996/015881 | 1996-10-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
MXPA99003196A true MXPA99003196A (en) | 1999-09-20 |
Family
ID=
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2268052C (en) | Process for making a detergent composition by non-tower process | |
MXPA99003195A (en) | Process for making a detergent composition by non-tower process | |
US6143711A (en) | Process for making a detergent composition by non-tower process | |
EP0929646A1 (en) | Process for making a low density detergent composition | |
US6211138B1 (en) | Process for making a detergent composition by non-tower process | |
US6136777A (en) | Process for making a detergent composition by non-tower process | |
US6150323A (en) | Process for making a detergent composition by non-tower process | |
US6172034B1 (en) | Process for making a detergent composition by non-tower process | |
US6121229A (en) | Process for making a detergent composition by non-tower process | |
US6391844B1 (en) | Process for making a detergent composition by non-tower process | |
US6211137B1 (en) | Process for making a detergent composition by non-tower process | |
US6281188B1 (en) | Process for making a low density detergent composition | |
MXPA99003196A (en) | Process for making a detergent composition by non-tower process | |
MXPA99003194A (en) | Process for making a detergent composition by non-tower process | |
MXPA99003200A (en) | Process for making a detergent composition by non-tower process | |
US6156719A (en) | Process for making a low density detergent composition by non-tower process | |
MXPA99003201A (en) | Process for making a detergent composition by non-tower process | |
MXPA99003210A (en) | Process for making a detergent compositionby non-tower process | |
MXPA99003202A (en) | Process for making a low density detergent composition by non-tower process | |
MXPA99003211A (en) | Process for making a low density detergent composition | |
MXPA99003197A (en) | Process for making a detergent composition by non-tower process |