EP2274477A2 - Procédé de fabrication de papier et carton - Google Patents
Procédé de fabrication de papier et cartonInfo
- Publication number
- EP2274477A2 EP2274477A2 EP09742222A EP09742222A EP2274477A2 EP 2274477 A2 EP2274477 A2 EP 2274477A2 EP 09742222 A EP09742222 A EP 09742222A EP 09742222 A EP09742222 A EP 09742222A EP 2274477 A2 EP2274477 A2 EP 2274477A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- polymer
- cationic
- agent
- retention
- retention agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 38
- 230000008569 process Effects 0.000 title claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 title abstract description 5
- 230000014759 maintenance of location Effects 0.000 claims abstract description 139
- 230000009977 dual effect Effects 0.000 claims abstract description 43
- 229920003118 cationic copolymer Polymers 0.000 claims abstract description 29
- 239000000725 suspension Substances 0.000 claims abstract description 20
- 125000000129 anionic group Chemical group 0.000 claims abstract description 19
- 239000006185 dispersion Substances 0.000 claims abstract description 12
- 239000002245 particle Substances 0.000 claims abstract description 10
- 229920000620 organic polymer Polymers 0.000 claims abstract description 7
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 5
- 239000011707 mineral Substances 0.000 claims abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 110
- 229920000642 polymer Polymers 0.000 claims description 38
- 125000002091 cationic group Chemical group 0.000 claims description 35
- 239000000178 monomer Substances 0.000 claims description 27
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical class O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 23
- 235000012216 bentonite Nutrition 0.000 claims description 19
- 229920006317 cationic polymer Polymers 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 16
- 229920001577 copolymer Polymers 0.000 claims description 14
- 239000000701 coagulant Substances 0.000 claims description 13
- 238000006116 polymerization reaction Methods 0.000 claims description 13
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 12
- DPBJAVGHACCNRL-UHFFFAOYSA-N 2-(dimethylamino)ethyl prop-2-enoate Chemical compound CN(C)CCOC(=O)C=C DPBJAVGHACCNRL-UHFFFAOYSA-N 0.000 claims description 10
- 239000000377 silicon dioxide Substances 0.000 claims description 10
- 239000000839 emulsion Substances 0.000 claims description 8
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 claims description 8
- UZNHKBFIBYXPDV-UHFFFAOYSA-N trimethyl-[3-(2-methylprop-2-enoylamino)propyl]azanium;chloride Chemical compound [Cl-].CC(=C)C(=O)NCCC[N+](C)(C)C UZNHKBFIBYXPDV-UHFFFAOYSA-N 0.000 claims description 8
- 239000003431 cross linking reagent Substances 0.000 claims description 7
- GQOKIYDTHHZSCJ-UHFFFAOYSA-M dimethyl-bis(prop-2-enyl)azanium;chloride Chemical compound [Cl-].C=CC[N+](C)(C)CC=C GQOKIYDTHHZSCJ-UHFFFAOYSA-M 0.000 claims description 7
- LEQAOMBKQFMDFZ-UHFFFAOYSA-N glyoxal Chemical compound O=CC=O LEQAOMBKQFMDFZ-UHFFFAOYSA-N 0.000 claims description 6
- RQAKESSLMFZVMC-UHFFFAOYSA-N n-ethenylacetamide Chemical compound CC(=O)NC=C RQAKESSLMFZVMC-UHFFFAOYSA-N 0.000 claims description 6
- ZQXSMRAEXCEDJD-UHFFFAOYSA-N n-ethenylformamide Chemical compound C=CNC=O ZQXSMRAEXCEDJD-UHFFFAOYSA-N 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 5
- NJSSICCENMLTKO-HRCBOCMUSA-N [(1r,2s,4r,5r)-3-hydroxy-4-(4-methylphenyl)sulfonyloxy-6,8-dioxabicyclo[3.2.1]octan-2-yl] 4-methylbenzenesulfonate Chemical compound C1=CC(C)=CC=C1S(=O)(=O)O[C@H]1C(O)[C@@H](OS(=O)(=O)C=2C=CC(C)=CC=2)[C@@H]2OC[C@H]1O2 NJSSICCENMLTKO-HRCBOCMUSA-N 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 5
- 150000003839 salts Chemical class 0.000 claims description 5
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 5
- JKNCOURZONDCGV-UHFFFAOYSA-N 2-(dimethylamino)ethyl 2-methylprop-2-enoate Chemical compound CN(C)CCOC(=O)C(C)=C JKNCOURZONDCGV-UHFFFAOYSA-N 0.000 claims description 4
- XHZPRMZZQOIPDS-UHFFFAOYSA-N 2-Methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid Chemical compound OS(=O)(=O)CC(C)(C)NC(=O)C=C XHZPRMZZQOIPDS-UHFFFAOYSA-N 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 4
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 claims description 4
- XXROGKLTLUQVRX-UHFFFAOYSA-N allyl alcohol Chemical compound OCC=C XXROGKLTLUQVRX-UHFFFAOYSA-N 0.000 claims description 4
- 125000004985 dialkyl amino alkyl group Chemical group 0.000 claims description 4
- 239000010954 inorganic particle Substances 0.000 claims description 4
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 claims description 4
- QNILTEGFHQSKFF-UHFFFAOYSA-N n-propan-2-ylprop-2-enamide Chemical compound CC(C)NC(=O)C=C QNILTEGFHQSKFF-UHFFFAOYSA-N 0.000 claims description 4
- 239000011087 paperboard Substances 0.000 claims description 4
- OEIXGLMQZVLOQX-UHFFFAOYSA-N trimethyl-[3-(prop-2-enoylamino)propyl]azanium;chloride Chemical compound [Cl-].C[N+](C)(C)CCCNC(=O)C=C OEIXGLMQZVLOQX-UHFFFAOYSA-N 0.000 claims description 4
- UWFRVQVNYNPBEF-UHFFFAOYSA-N 1-(2,4-dimethylphenyl)propan-1-one Chemical compound CCC(=O)C1=CC=C(C)C=C1C UWFRVQVNYNPBEF-UHFFFAOYSA-N 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- NBTXFNJPFOORGI-UHFFFAOYSA-N 2-ethenoxyethyl prop-2-enoate Chemical compound C=COCCOC(=O)C=C NBTXFNJPFOORGI-UHFFFAOYSA-N 0.000 claims description 3
- KUDUQBURMYMBIJ-UHFFFAOYSA-N 2-prop-2-enoyloxyethyl prop-2-enoate Chemical compound C=CC(=O)OCCOC(=O)C=C KUDUQBURMYMBIJ-UHFFFAOYSA-N 0.000 claims description 3
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 claims description 3
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 3
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- 150000001252 acrylic acid derivatives Chemical class 0.000 claims description 3
- WJMQFZCWOFLFCI-UHFFFAOYSA-N cyanomethyl prop-2-enoate Chemical compound C=CC(=O)OCC#N WJMQFZCWOFLFCI-UHFFFAOYSA-N 0.000 claims description 3
- 238000006731 degradation reaction Methods 0.000 claims description 3
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical class C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 claims description 3
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Chemical compound CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 claims description 3
- 229940015043 glyoxal Drugs 0.000 claims description 3
- 238000006460 hydrolysis reaction Methods 0.000 claims description 3
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims description 3
- 229940088644 n,n-dimethylacrylamide Drugs 0.000 claims description 3
- YLGYACDQVQQZSW-UHFFFAOYSA-N n,n-dimethylprop-2-enamide Chemical compound CN(C)C(=O)C=C YLGYACDQVQQZSW-UHFFFAOYSA-N 0.000 claims description 3
- CHDKQNHKDMEASZ-UHFFFAOYSA-N n-prop-2-enoylprop-2-enamide Chemical compound C=CC(=O)NC(=O)C=C CHDKQNHKDMEASZ-UHFFFAOYSA-N 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- BDHFUVZGWQCTTF-UHFFFAOYSA-N sulfonic acid Chemical group OS(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-N 0.000 claims description 3
- VPYJNCGUESNPMV-UHFFFAOYSA-N triallylamine Chemical compound C=CCN(CC=C)CC=C VPYJNCGUESNPMV-UHFFFAOYSA-N 0.000 claims description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 2
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 claims description 2
- 239000004593 Epoxy Substances 0.000 claims description 2
- 229920002907 Guar gum Polymers 0.000 claims description 2
- 229920002873 Polyethylenimine Polymers 0.000 claims description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 2
- 150000007513 acids Chemical class 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 2
- 238000009833 condensation Methods 0.000 claims description 2
- 230000005494 condensation Effects 0.000 claims description 2
- 238000007334 copolymerization reaction Methods 0.000 claims description 2
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 claims description 2
- UYMKPFRHYYNDTL-UHFFFAOYSA-N ethenamine Chemical compound NC=C UYMKPFRHYYNDTL-UHFFFAOYSA-N 0.000 claims description 2
- 239000000665 guar gum Substances 0.000 claims description 2
- 235000010417 guar gum Nutrition 0.000 claims description 2
- 229960002154 guar gum Drugs 0.000 claims description 2
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 2
- WGESLFUSXZBFQF-UHFFFAOYSA-N n-methyl-n-prop-2-enylprop-2-en-1-amine Chemical compound C=CCN(C)CC=C WGESLFUSXZBFQF-UHFFFAOYSA-N 0.000 claims description 2
- DYUWTXWIYMHBQS-UHFFFAOYSA-N n-prop-2-enylprop-2-en-1-amine Chemical compound C=CCNCC=C DYUWTXWIYMHBQS-UHFFFAOYSA-N 0.000 claims description 2
- 229920000768 polyamine Polymers 0.000 claims description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 150000003335 secondary amines Chemical class 0.000 claims description 2
- 235000019355 sepiolite Nutrition 0.000 claims description 2
- 150000004760 silicates Chemical class 0.000 claims description 2
- 229940117958 vinyl acetate Drugs 0.000 claims description 2
- 239000010457 zeolite Substances 0.000 claims description 2
- 238000006683 Mannich reaction Methods 0.000 claims 1
- 229920000881 Modified starch Polymers 0.000 claims 1
- 239000004480 active ingredient Substances 0.000 claims 1
- 125000003700 epoxy group Chemical group 0.000 claims 1
- -1 methallyl sulphonic acid Chemical compound 0.000 claims 1
- 235000019426 modified starch Nutrition 0.000 claims 1
- 229920000647 polyepoxide Polymers 0.000 claims 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims 1
- 238000013019 agitation Methods 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 description 44
- 238000007792 addition Methods 0.000 description 23
- 239000000123 paper Substances 0.000 description 18
- 239000000440 bentonite Substances 0.000 description 17
- 229910000278 bentonite Inorganic materials 0.000 description 17
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 17
- 239000000243 solution Substances 0.000 description 14
- 230000006872 improvement Effects 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 239000000835 fiber Substances 0.000 description 6
- 239000011859 microparticle Substances 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 229920006037 cross link polymer Polymers 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 4
- 238000010008 shearing Methods 0.000 description 4
- 229920002554 vinyl polymer Polymers 0.000 description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 3
- 229920006318 anionic polymer Polymers 0.000 description 3
- 239000011111 cardboard Substances 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 239000011591 potassium Substances 0.000 description 3
- 229910052700 potassium Inorganic materials 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000004448 titration Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 2
- 238000003556 assay Methods 0.000 description 2
- 239000006085 branching agent Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 239000012764 mineral filler Substances 0.000 description 2
- RNVCVTLRINQCPJ-UHFFFAOYSA-N o-toluidine Chemical compound CC1=CC=CC=C1N RNVCVTLRINQCPJ-UHFFFAOYSA-N 0.000 description 2
- 229940104181 polyflex Drugs 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- ZKYCLDTVJCJYIB-UHFFFAOYSA-N 2-methylidenedecanamide Chemical compound CCCCCCCCC(=C)C(N)=O ZKYCLDTVJCJYIB-UHFFFAOYSA-N 0.000 description 1
- XEEYSDHEOQHCDA-UHFFFAOYSA-N 2-methylprop-2-ene-1-sulfonic acid Chemical compound CC(=C)CS(O)(=O)=O XEEYSDHEOQHCDA-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 239000004971 Cross linker Substances 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 241000009328 Perro Species 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 229920006322 acrylamide copolymer Polymers 0.000 description 1
- 150000003926 acrylamides Chemical class 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 125000005250 alkyl acrylate group Chemical group 0.000 description 1
- 125000000746 allylic group Chemical group 0.000 description 1
- 238000001461 argentometric titration Methods 0.000 description 1
- 238000010533 azeotropic distillation Methods 0.000 description 1
- KCXMKQUNVWSEMD-UHFFFAOYSA-N benzyl chloride Chemical compound ClCC1=CC=CC=C1 KCXMKQUNVWSEMD-UHFFFAOYSA-N 0.000 description 1
- 229940073608 benzyl chloride Drugs 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012674 dispersion polymerization Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002118 epoxides Chemical class 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 125000001165 hydrophobic group Chemical group 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012688 inverse emulsion polymerization Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000003760 magnetic stirring Methods 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 150000002734 metacrylic acid derivatives Chemical class 0.000 description 1
- 125000005394 methallyl group Chemical group 0.000 description 1
- 229940050176 methyl chloride Drugs 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 239000004530 micro-emulsion Substances 0.000 description 1
- 238000012703 microemulsion polymerization Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- ZLSJVVLETDAEQY-UHFFFAOYSA-N n,n-dihexylprop-2-enamide Chemical compound CCCCCCN(C(=O)C=C)CCCCCC ZLSJVVLETDAEQY-UHFFFAOYSA-N 0.000 description 1
- YRVUCYWJQFRCOB-UHFFFAOYSA-N n-butylprop-2-enamide Chemical compound CCCCNC(=O)C=C YRVUCYWJQFRCOB-UHFFFAOYSA-N 0.000 description 1
- XFHJDMUEHUHAJW-UHFFFAOYSA-N n-tert-butylprop-2-enamide Chemical compound CC(C)(C)NC(=O)C=C XFHJDMUEHUHAJW-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011146 organic particle Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 229920000867 polyelectrolyte Polymers 0.000 description 1
- 238000012673 precipitation polymerization Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000000135 prohibitive effect Effects 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 229910001961 silver nitrate Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000012064 sodium phosphate buffer Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229950003937 tolonium Drugs 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- NLVXSWCKKBEXTG-UHFFFAOYSA-N vinylsulfonic acid Chemical compound OS(=O)(=O)C=C NLVXSWCKKBEXTG-UHFFFAOYSA-N 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/06—Paper forming aids
- D21H21/10—Retention agents or drainage improvers
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
- D21H17/375—Poly(meth)acrylamide
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/41—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups
- D21H17/44—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups cationic
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/41—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups
- D21H17/44—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups cationic
- D21H17/45—Nitrogen-containing groups
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/54—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
- D21H17/55—Polyamides; Polyaminoamides; Polyester-amides
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/68—Water-insoluble compounds, e.g. fillers, pigments siliceous, e.g. clays
Definitions
- the invention relates to a process for the production of paper, cardboard or the like employing at least two retention agents and dripping agents each organic and cationic overall load, respectively a main agent and a dual retention agent, also designated secondary agent of retention. It also relates to paper or paperboard obtained by this method. Finally, it relates to the use of specific crosslinked cationic organic (co) polymers as a dual retention agent.
- Retention and dewatering systems are well known in the papermaking process. Their function is to improve the retention of cellulosic fibers and mineral fillers during the manufacture of the sheet.
- EP-A-235893 which describes the addition of a cationic polymer of high molecular weight (main retention agent), then a shearing step, then the addition of bentonite (secondary retention agent). According to this patent, the polymer should be essentially linear (without the voluntary addition of branching agent).
- EP 462365 relates to the use in a "dual" type retention system of a polymer (main retention agent) and then an organic microparticle (secondary retention agent) obtained by microemulsion polymerization.
- a “dual" type retention system of a polymer (main retention agent) and then an organic microparticle (secondary retention agent) which specifies (col. 3, 1.65) that the microparticles should have a size as uniform as possible and as thin as possible.
- an organic particle obtained by polymerization is in the form of: - an emulsion conventional inverse of water-in-oil type, namely a composition comprising a continuous oil phase, a discontinuous aqueous phase and at least one emulsifier,
- a "water-in-water” emulsion that is to say a composition comprising a continuous aqueous phase in which the polymer is in suspension.
- the organic microparticles in the form of a water-type microemulsion in the oil of the prior art are characterized by the fact that they require a very large quantity of agents for emulsification.
- surfactants with high HLB are distinguished by the fact that, unlike the "standard" dispersions of the invention, they are: thermodynamically stable, translucent, and the size of the dispersed particles is much smaller than one micrometer, generally of the order from 0.1 to 0.3 microns. It should be noted that, as is the case for retention systems using mineral microparticles, it is known to those skilled in the art that the size of the organic crosslinked particles is a direct indication of their particle agglomeration (ie retention) capacity.
- the invention therefore relates to a process for producing paperboard or the like which consists, separately or as a mixture, of adding to the fibrous suspension: at least one main retention agent consisting of a cationic (co) polymer, and at least one dual retention agent consisting of a cross-linked cationic (co) polymer obtained in the form of a dispersion, and dissolved prior to its introduction into the fibrous suspension under gentle stirring, said cross-linked cationic (co) polymer having a viscosity UL between 1.3 and 2.7 cps, preferably 1.5 and 2.4 cps, and - an apparent cationicity ratio between 25 and 75%, and, optionally, before or after the dual agent, or the main retention agent, one or more tertiary retention agent (s) selected from the group consisting of inorganic particles and organic polymers carrying anionic charges.
- at least one main retention agent consisting of a cationic (co) polymer
- at least one dual retention agent consisting of a cross-linked
- the expression "low agitation” denotes a stirring that does not entail any significant modification of the structure of the dual retention agent, before being added to the suspension. fibrous.
- the agitation is of the order of 50 to 500 rpm, preferably 70 to 200 rpm.
- the dual retention agent has a cationicity of less than 4 meq / g.
- the method of the invention makes it possible to obtain a significantly improved retention without any negative effect.
- An additional characteristic of this improvement is also improving the dewatering properties while preserving the quality of formation of the sheet.
- crosslinked cationic polymers as a retention agent
- those skilled in the art were aware of conditions different from those of the invention for the use of crosslinked cationic polymers as an agent. retention, namely: a very high shear (of the order of 10 000 rpm) at the time of dissolution (EP 1086276) in the context of the paper,
- the invention is directed to an improved process which consists in adding, to the suspension or fibrous mass or pulp to be flocculated, as main retention agent, at least one cationic (co) polymer, followed by the addition, mixed or not, at least one dual cross-linked cationic organic retention agent, obtained in dispersion and having a UL viscosity of between 1.3 and 2.7 cps, preferably 1.5 and 2.4 cps, and an apparent cationicity ratio of between 25 and 75%.
- the method of the invention can take several embodiments.
- the dewatering retention system used in the process for producing paper, paperboard or the like comprises respectively a main agent and a dual retention agent, each organic and with a global cationic charge as defined in accordance with US Pat. 'invention.
- the main retention agent will be introduced after the so-called “fan pump” and before the pressure or pressure screen and the dual retention agent will be injected after the "pressure screen", last point of strong shear before the headbox.
- the two cationic organic retention agents according to the invention and a tertiary retention agent chosen from the anionic global charge retention agents well known to the man are added to the suspension. business.
- the order of the addition points of the dual retention agent, the main retention agent and the tertiary retention agent can be reversed, however, preferably, the dual agent will be introduced after the pressure or pressure screen, and before the tertiary agent.
- the two cationic organic retention agents according to the invention are added to the suspension in the form of a mixture, at one or more points of addition, in association or not with a retention agent. tertiary, before or after the "pressure screen".
- the main retention agent is characterized in that it is a cationic (co) polymer:
- nonionic monomer chosen from the group comprising acrylamide and / or methacrylamide and / or one of their substituted derivatives (such as N-isopropylacrylamide or N, N-dimethylacrylamide, etc.) and / or N -vinylformamide and / or N-vinylacetamide and / or N-vinylpyrrolidone, advantageously acrylamide,
- At least one unsaturated cationic ethylenic monomer selected from the group consisting of dialkylaminoalkyl (meth) acrylate, dialkylaminoalkyl (meth) acrylamide, diallylamine, methyldiallylamine and their quaternary ammonium or acids.
- ADAME dimethylaminoethyl acrylate
- MADAME dimethylaminoethyl methacrylate
- DADMAC dimethyldiallylammonium chloride
- ATAC acrylamidopropyltrimethylammonium chloride
- MADMAPTAC methacrylamidopropyltrimethylammonium chloride
- the cationic charge of the main retention and dewatering agent can also be obtained directly from the abovementioned (co) polymers by means of well-known degradation or hydrolysis reactions of the skilled person.
- the main retention agent may also be a cationic polymer of natural origin, for example starch or guar gum derivatives.
- the main retention agent may also be of amphoteric nature comprising, in combination with the cationic charges, anionic charges borne by anionic monomers, such as, for example, (meth) acrylic acid, acrylamidomethylpropane acid, sulfonic acid, itaconic acid, maleic anhydride, maleic acid, vinylsulfonic acid, methallyl sulfonic acid and their salts.
- anionic monomers such as, for example, (meth) acrylic acid, acrylamidomethylpropane acid, sulfonic acid, itaconic acid, maleic anhydride, maleic acid, vinylsulfonic acid, methallyl sulfonic acid and their salts.
- This polymer does not require the development of a particular polymerization process. It can be obtained by any of the polymerization techniques well known to those skilled in the art: gel polymerization, precipitation polymerization, emulsion polymerization (aqueous or inverse) followed or not by a distillation step, suspension polymerization, solution, these polymerizations being followed or not a step for isolating a dry form of the (co) polymer by all types of means well known to those skilled in the art.
- the main retention agent may also be branched or crosslinked preferably during (and / or possibly after) the polymerization, in the presence of a branching agent and optionally a transfer agent.
- branchifiers methylene bisacrylamide (MBA), ethylene glycol di-acrylate, polyethylene glycol dimethacrylate, diacrylamide, cyanomethylacrylate, vinyloxyethylacrylate or methacrylate, trially lamine, formaldehyde, glyoxal, glycidyl ether compounds such as ethylene glycol diglycidyl ether, or epoxy or any other means well known to those skilled in the art for branching.
- MBA methylene bisacrylamide
- ethylene glycol di-acrylate polyethylene glycol dimethacrylate
- diacrylamide diacrylamide
- cyanomethylacrylate vinyloxyethylacrylate or methacrylate
- trially lamine formaldehyde
- glyoxal glycidyl ether compounds
- the amount of cationic (co) polymer introduced into the suspension to be flocculated is between thirty and one thousand grams of active polymer per ton of dry pulp (30 and 1000 g / t), or between 0.003 percent and 0.1 hundred. It has been observed that if the amount is less than 0.003%, no significant retention is obtained. Similarly, if this amount exceeds 0.1%, no noticeable improvement is observed.
- the amount of main retention agent introduced is between 0.015 and 0.05 percent (0.015 and 0.05%) of the amount of the dry pulp, ie between 150 g / t and 500 g / t.
- the injection or the introduction of the main retention agent according to the invention is carried out, preferably, before a shearing step, in practice, advantageously, before the "pressure screen", in the diluted paper pulp or "thin "stock”, ie a paste diluted to about 0.5 - 1.5% solids such as cellulose fibers, optional fillers, and the various customary additives of papermaking.
- the dual retention and dewatering agent is a cationic organic polymer obtained by dispersion polymerization (water-in-water emulsion or, preferably, standard inverse emulsion) by conventional polymerization processes. It is characterized in that:
- the ratio of apparent cationicity which expresses as a percentage a cationicity measured relative to a theoretical cationicity, consists in comparing 2 cationicity values:
- the retention agents of the present invention are obtained using, during the polymerization, a crosslinking agent, well known to those skilled in the art, and preferably in the absence of transfer agent.
- the dual retention agents are obtained by polymerization (or respectively copolymerization, together throughout the text and the claims:
- polymerization advantageously in standard inverse emulsion, of at least one cationic monomer and optionally other nonionic monomers or, non-preferably, anionic monomers, in the presence of a crosslinking agent. They must have a global cationic charge. Those skilled in the art will appreciate from their own knowledge or through routine testing, the polymerization conditions to be used to obtain a final polymer having UL viscosity and RCA as required.
- the copolymer is obtained from:
- the polymerization concentration is preferably between 20 and 50%
- the level of crosslinking agent must be greater than 2 ppm and less than 75 ppm by weight relative to the total mass of the monomers, advantageously between 3 and 20 ppm.
- the required amount can be easily determined by routine testing simply by ensuring that the UL viscosity of the cross-linked cationic (co) polymer corresponds to the specification of the invention, namely from 1.3 to 2.7 cps, preferably between 1.5 and 2.4 cps and measuring the RCA.
- a / cationic monomers mention may be made, in particular and in a nonlimiting manner, of dimethylaminoethyl acrylate (ADAME) and / or dimethylaminoethyl methacrylate (MADAME) quaternized or salified, dimethyldiallylammonium chloride (DADMAC), acrylamidopropyltrimethylammonium chloride (APTAC) and / or methacrylamidopropyltrimethylammonium chloride (MAPTAC).
- carboxylic function eg acrylic acid, methacrylic acid, and their salts
- a sulfonic acid function eg 2-acrylamido-2-methylpropanesulphonic acid (AMPS), methallyl acid sulphonic acid and their salts ...)
- water-insoluble monomers such as acrylic, allylic or vinyl monomers having a hydrophobic group.
- these monomers will be used in very small amounts, less than 20 mole%, preferably less than 10 mole%, and they will be chosen preferentially from the group comprising acrylamide derivatives such as N-alkylacrylamide by for example N-tert-butylacrylamide, octylacrylamide and N, N-dialkylacrylamides such as N, N-dihexylacrylamide ... acrylic acid derivatives such as alkyl acrylates and methacrylates.
- acrylamide derivatives such as N-alkylacrylamide by for example N-tert-butylacrylamide, octylacrylamide and N, N-dialkylacrylamides such as N, N-dihexylacrylamide ... acrylic acid derivatives such as alkyl acrylates and methacrylates.
- crosslinkers methylene bisacrylamide (MBA), ethylene glycol di-acrylate, polyethylene glycol dimethacrylate, diacrylamide, cyanomethylacrylate, vinyloxyethylacrylate or methacrylate, triallylamine, formaldehyde, glyoxal, glycidyl ether compounds such as ethylene glycol diglycidyl ether, or epoxides and their derivatives or any other means well known to those skilled in the art for crosslinking.
- MCA methylene bisacrylamide
- ethylene glycol di-acrylate polyethylene glycol dimethacrylate
- diacrylamide diacrylamide
- cyanomethylacrylate vinyloxyethylacrylate or methacrylate
- triallylamine formaldehyde
- glyoxal glycidyl ether compounds
- glycidyl ether compounds such as ethylene glycol diglycidyl ether, or epoxides and their derivatives or any other means well known
- the dual retention agent is introduced into the suspension, very preferably in a proportion of 30 g / t to 1000 g / t of active substance (polymer) relative to the dry weight of the fibrous suspension, preferably 150 g. / t at 500g / t.
- the polymer can be used either in the form of a dispersion, dissolved or "inverted” in water, or in the form of a solution in the water of the powder obtained from said dispersion.
- anionic agents which are well known to those skilled in the art for their use as a retention agent, preferably comprise, but are not limited to, alone or as a mixture: anionic mineral particles such as silica derivatives, for example particles silica, including bentonites from hectorites, smectites, montmorillonites, nontronites, saponites, sauconites, hormites, attapulgites and sepiolites, silicates, aluminosilicates or borosilicates derivatives, zeolites, kaolinites, colloidal silicas modified or not, or precipitated silica.
- This type of tertiary agents is preferably introduced just upstream of the headbox, at a rate of 0.01 to 0.5 percent (0.01 to 0.5%) by dry weight relative to the weight. dry fibrous suspension,
- organic polymers having a total anionic charge and in all their forms, namely linear, branched or crosslinked.
- a coagulant is added to the fibrous suspension, prior to the addition of the main retention agent.
- coagulants chosen from the group comprising inorganic coagulants such as polyaluminium chloride (PAC), alumina sulphate, aluminum polychlorosulphate ..., or coagulants including - polymers based on diallyldimethylammonium chloride (DADMAC), - polyethyleneimines, - quaternary polyamines manufactured by condensation of a primary or secondary amine on epichlorohydrin, polymers having functions of vinylamine type or dicyandiamide resins ...
- DADMAC diallyldimethylammonium chloride
- - polyethyleneimines - polyethyleneimines
- quaternary polyamines manufactured by condensation of a primary or secondary amine on epichlorohydrin polymers having functions of vinylamine type or dicyandiamide resins ...
- These coagulants can be used alone or in a mixture and are preferably added in thick paste or often in white water.
- the UL viscosity is measured using an LVT-type Brookfield viscometer equipped with a UL adapter whose module rotates at 60 rpm (0.1% polymer by weight in a salt solution of sodium chloride). sodium IM).
- b / The "BuIk” viscosity is measured directly on the (co) polymer solution using a Brookfield viscometer equipped with a LVT type mobile and at 20 ° C.
- the principle consists in determining the percentage of apparent cationicity of a given polymer with respect to its theoretical cationicity. They are measured after precipitation of the polymer in acetone, in order to isolate the polymer from possible impurities.
- the cationicity or density of cationic charges represents the amount of "accessible" charges carried by polymer Ig. This property is measured by colloidal titration with an anionic polymer in the presence of a colored indicator sensitive to the ionicity of the excess polymer.
- Vpc is the solution volume of the cationic polymer
- Cpc is the concentration of cationic polymer in solution
- V e pvsk is the volume of solution of potassium polyvinyl sulphate
- Npvsk is the normality of the potassium polyvinyl sulphate solution.
- the theoretical cationicity value reflects the cationicity actually present in the polymer. It is therefore not affected by the structure of the polymer. It can be measured by conventional assay of counterions of cationic monomers. In the examples below, the theoretical cationicity is measured by simple determination of chloride ions (argentimetric titration with silver nitrate).
- ADBZ dimethylaminoethyl acrylate quaternized with benzyl chloride.
- Annotated polymers X are counterexamples.
- the paste used is diluted to a consistency of 0.5%.
- T 20s: Addition of component 2 (T2)
- T 25s: Addition of component 3 (T3)
- T 30s: Elimination of the first 20 ml corresponding to the dead volume, then removal of 100ml exactly for filtration for the Britt jar test. The following analyzes are then carried out:
- test numbers comprising a * correspond to the different retention systems covered by the invention.
- test No. 7 show that the method of the invention (test No. 7) not only significantly improves the retention of charges (from 51.9% to 67.9%) and the overall retention (from 80, 6% to 85.6%), but also the dripping (from 442ml to 516ml), and this without damaging the formation.
- the use of the main retention agent and the mixed dual retention agent provides a gain in overall retention performance of more than 3 points (/ at test # 0) and also and especially a gain of 9 points in retention of loads as well as a drainage more powerful.
- INDUSTRIAL BENEFITS related to the processes of the invention: use of a single commercial product in the form of a mixture (ie: a single preparation unit and a single injection unit) with improved performances for the machine (in particular as regards the machine speed).
- a separate addition of the mixture of the invention shows a slight improvement over a single point of addition but with here a conservation of the quality of formation of the sheet.
- the main and dual retention agent mixture according to the invention proves to be very competitive in terms of performance as well as in terms of cost compared with a conventional retention system of Hydrocol type.
- INDUSTRIAL BENEFITS Related to the Methods of the Invention In addition to improved drainage retention performance, it avoids the well-known difficulties associated with the use of bentonite. Indeed, the implementation of it is heavy for the paper and often requires a significant investment in the preparation unit of bentonite slurry which requires technical support and attention.
- Test 1 represents the usual framework for using a retention system with bentonite (Hydrocol type).
- Tests 21, 29 and 34 are variants of the invention which show very significant performance improvements.
- test No. 7 the cross-linked cationic (co) polymer / cationic (co) polymer retention system of the invention (test No. 7) can be substituted for the conventionally used cationic polymer / silica system (test No. 4), while at the same time providing better performance in terms of retention and drainage.
- Three-component retention and dewatering systems The so-called three-component conventional systems rely on the use of a dual system generally based on a cationic (co) polymer and on an inorganic particle supplemented by the addition of an anionic (co) polymer.
- An example commercially developed by the company Ciba is the Telioform system (corresponding to test 28). This type of system is particularly recommended when the paper maker is looking for a strong retention of loads.
- the inorganic particle that has been used is bentonite, however this choice is in no way restrictive.
- the comparison of these tests shows that, surprisingly, the substitution of the anionic (co) polymer (Telioform MlOO) by the crosslinked cationic (co) polymers of the invention makes it possible to obtain much higher performances and especially on the criterion of retention of charges which goes from 66.3% to 74.3%.
- Tests 37 and 38 The inversion of the addition sequence of the retention agents, namely the anionic agent or tertiary agents are introduced before the main agent and the dual agent, does not affect the performance that results of the present invention.
Landscapes
- Paper (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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FR0852415A FR2929963B1 (fr) | 2008-04-10 | 2008-04-10 | Procede de fabrication de papier et carton |
FR0853245A FR2929964B3 (fr) | 2008-04-10 | 2008-05-19 | Procede de fabrication de papier et carton |
PCT/FR2009/050554 WO2009136024A2 (fr) | 2008-04-10 | 2009-04-01 | Procédé de fabrication de papier et carton |
Publications (2)
Publication Number | Publication Date |
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EP2274477A2 true EP2274477A2 (fr) | 2011-01-19 |
EP2274477B1 EP2274477B1 (fr) | 2014-01-22 |
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EP09742222.4A Active EP2274477B1 (fr) | 2008-04-10 | 2009-04-01 | Procédé de fabrication de papier et carton |
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US (1) | US8343311B2 (fr) |
EP (1) | EP2274477B1 (fr) |
CN (1) | CN101999019B (fr) |
FR (2) | FR2929963B1 (fr) |
WO (1) | WO2009136024A2 (fr) |
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FR2869626A3 (fr) * | 2004-04-29 | 2005-11-04 | Snf Sas Soc Par Actions Simpli | Procede de fabrication de papier et carton, nouveaux agents de retention et d'egouttage correspondants, et papiers et cartons ainsi obtenus |
FR2929963B1 (fr) * | 2008-04-10 | 2010-04-23 | Snf Sas | Procede de fabrication de papier et carton |
KR101777888B1 (ko) * | 2009-11-06 | 2017-09-12 | 솔레니스 테크놀러지스 케이맨, 엘.피. | 종이 강도 개선을 위한 중합체 및 중합체 혼합물의 표면 적용 |
FR2963364B1 (fr) | 2010-08-02 | 2014-12-26 | Snf Sas | Procede de fabrication de papier et carton presentant des proprietes de retention et d'egouttage ameliorees. |
CN101973653B (zh) * | 2010-09-30 | 2012-07-04 | 南京大学 | 采用复合混凝法处理高浓度pam生产废水的方法 |
ES2624249T3 (es) * | 2011-06-20 | 2017-07-13 | Basf Se | Fabricación de papel y cartón. |
CN103608516B (zh) * | 2011-06-20 | 2016-11-16 | 巴斯夫欧洲公司 | 生产纸和纸板 |
CN104844773A (zh) * | 2015-05-08 | 2015-08-19 | 陈子明 | 纸料矿物复合助剂的制备方法 |
CN106723287B (zh) * | 2017-03-08 | 2018-12-04 | 湖北中烟工业有限责任公司 | 一种造纸法再造烟叶助留助滤剂的制备方法 |
US11535985B2 (en) | 2019-07-01 | 2022-12-27 | Kemira Oyj | Method for manufacture of paper or board and paper or board obtained by the method |
CN113248651B (zh) * | 2021-07-12 | 2021-10-01 | 山东诺尔生物科技有限公司 | 一种造纸助留剂及其制备方法和应用 |
CN113321771B (zh) * | 2021-08-03 | 2021-10-08 | 山东诺尔生物科技有限公司 | 一种支化型水包水助剂及其制备方法和应用 |
CN113354773B (zh) * | 2021-08-09 | 2021-10-29 | 山东诺尔生物科技有限公司 | 一种两性聚丙烯酰胺造纸助留剂及其制备方法 |
CN113897814A (zh) * | 2021-11-04 | 2022-01-07 | 泗县舒怡纸品有限公司 | 一种高吸水餐巾纸及其制备方法 |
CN114855498B (zh) * | 2022-04-18 | 2023-08-25 | 佛山市纳创纳米科技有限公司 | 纸用助留组合及其使用方法 |
WO2024105306A1 (fr) * | 2022-11-18 | 2024-05-23 | Kemira Oyj | Utilisation d'une composition comprenant un biopolymère cationique |
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GB8309275D0 (en) * | 1983-04-06 | 1983-05-11 | Allied Colloids Ltd | Dissolution of water soluble polymers in water |
EP0202780B2 (fr) * | 1985-04-25 | 1998-12-09 | Ciba Specialty Chemicals Water Treatments Limited | Procédés de floculation |
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FR2779752B1 (fr) * | 1998-06-12 | 2000-08-11 | Snf Sa | Procede de fabrication de papier et carton et nouveaux agents de retention correspondants, et papiers et cartons ainsi obtenus |
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MY140287A (en) * | 2000-10-16 | 2009-12-31 | Ciba Spec Chem Water Treat Ltd | Manufacture of paper and paperboard |
GB0108548D0 (en) * | 2001-04-05 | 2001-05-23 | Ciba Spec Chem Water Treat Ltd | Process for flocculating suspensions |
CN100558983C (zh) * | 2002-03-04 | 2009-11-11 | 艾莫考国际公司 | 纸和材料及其生产方法 |
WO2005103091A1 (fr) * | 2004-04-21 | 2005-11-03 | Ciba Specialty Chemicals Water Treatments Limited | Compositions et procedes de preparation d'emulsions a haute teneur en solides |
FR2869626A3 (fr) * | 2004-04-29 | 2005-11-04 | Snf Sas Soc Par Actions Simpli | Procede de fabrication de papier et carton, nouveaux agents de retention et d'egouttage correspondants, et papiers et cartons ainsi obtenus |
ES2243140B1 (es) * | 2004-05-13 | 2006-12-01 | Acideka, S.A. | Composicion estabilizada de coagulantes y floculantes, procedimiento para su obtencion y aplicaciones. |
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WO2008031728A1 (fr) * | 2006-09-15 | 2008-03-20 | Ciba Holding Inc. | Procédé de fabrication du papier |
FR2929963B1 (fr) * | 2008-04-10 | 2010-04-23 | Snf Sas | Procede de fabrication de papier et carton |
-
2008
- 2008-04-10 FR FR0852415A patent/FR2929963B1/fr active Active
- 2008-05-19 FR FR0853245A patent/FR2929964B3/fr not_active Expired - Lifetime
-
2009
- 2009-04-01 EP EP09742222.4A patent/EP2274477B1/fr active Active
- 2009-04-01 CN CN2009801126589A patent/CN101999019B/zh active Active
- 2009-04-01 WO PCT/FR2009/050554 patent/WO2009136024A2/fr active Application Filing
- 2009-04-10 US US12/421,740 patent/US8343311B2/en active Active
Non-Patent Citations (1)
Title |
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See references of WO2009136024A3 * |
Also Published As
Publication number | Publication date |
---|---|
WO2009136024A2 (fr) | 2009-11-12 |
FR2929963B1 (fr) | 2010-04-23 |
EP2274477B1 (fr) | 2014-01-22 |
US8343311B2 (en) | 2013-01-01 |
US20090277597A1 (en) | 2009-11-12 |
FR2929964A1 (fr) | 2009-10-16 |
WO2009136024A3 (fr) | 2009-12-30 |
FR2929963A1 (fr) | 2009-10-16 |
CN101999019B (zh) | 2013-01-30 |
CN101999019A (zh) | 2011-03-30 |
FR2929964B3 (fr) | 2010-08-13 |
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