EP1608594A1 - Verwendung von polyacrylsäuren als mahlhilfsmittel für calciumcarbonat - Google Patents
Verwendung von polyacrylsäuren als mahlhilfsmittel für calciumcarbonatInfo
- Publication number
- EP1608594A1 EP1608594A1 EP04717583A EP04717583A EP1608594A1 EP 1608594 A1 EP1608594 A1 EP 1608594A1 EP 04717583 A EP04717583 A EP 04717583A EP 04717583 A EP04717583 A EP 04717583A EP 1608594 A1 EP1608594 A1 EP 1608594A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- polyacrylic acids
- calcium carbonate
- weight
- mol
- use according
- 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.)
- Ceased
Links
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 title claims abstract description 66
- 229920002125 Sokalan® Polymers 0.000 title claims abstract description 45
- 229910000019 calcium carbonate Inorganic materials 0.000 title claims abstract description 32
- 238000000227 grinding Methods 0.000 title description 19
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000001238 wet grinding Methods 0.000 claims abstract description 12
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 9
- 239000007900 aqueous suspension Substances 0.000 claims abstract description 6
- 239000002585 base Substances 0.000 claims abstract description 6
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims abstract description 5
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 42
- -1 2-hydroxyethyl thio groups Chemical group 0.000 claims description 10
- 229910052717 sulfur Inorganic materials 0.000 claims description 10
- 239000011593 sulfur Substances 0.000 claims description 10
- 238000006386 neutralization reaction Methods 0.000 claims description 5
- 125000004414 alkyl thio group Chemical group 0.000 claims description 4
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 3
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims 1
- 239000005864 Sulphur Substances 0.000 abstract 1
- 229910001854 alkali hydroxide Inorganic materials 0.000 abstract 1
- 239000012752 auxiliary agent Substances 0.000 abstract 1
- 239000010419 fine particle Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 20
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 18
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 17
- 239000000203 mixture Substances 0.000 description 17
- 239000012153 distilled water Substances 0.000 description 14
- 238000006116 polymerization reaction Methods 0.000 description 12
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Chemical compound [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 description 12
- 239000000725 suspension Substances 0.000 description 12
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 description 10
- 229910052757 nitrogen Inorganic materials 0.000 description 10
- 239000004584 polyacrylic acid Substances 0.000 description 10
- 239000007787 solid Substances 0.000 description 10
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 9
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethyl mercaptane Natural products CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 7
- 239000003999 initiator Substances 0.000 description 7
- 239000000049 pigment Substances 0.000 description 7
- 159000000000 sodium salts Chemical class 0.000 description 7
- DGVVWUTYPXICAM-UHFFFAOYSA-N β‐Mercaptoethanol Chemical compound OCCS DGVVWUTYPXICAM-UHFFFAOYSA-N 0.000 description 7
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 6
- 229920001577 copolymer Polymers 0.000 description 6
- LXEKPEMOWBOYRF-UHFFFAOYSA-N [2-[(1-azaniumyl-1-imino-2-methylpropan-2-yl)diazenyl]-2-methylpropanimidoyl]azanium;dichloride Chemical compound Cl.Cl.NC(=N)C(C)(C)N=NC(C)(C)C(N)=N LXEKPEMOWBOYRF-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000002270 dispersing agent Substances 0.000 description 3
- 229920001519 homopolymer Polymers 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 235000012054 meals Nutrition 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 2
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Natural products CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- PXIPVTKHYLBLMZ-UHFFFAOYSA-N Sodium azide Chemical compound [Na+].[N-]=[N+]=[N-] PXIPVTKHYLBLMZ-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- ZQMIGQNCOMNODD-UHFFFAOYSA-N diacetyl peroxide Chemical compound CC(=O)OOC(C)=O ZQMIGQNCOMNODD-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 2
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 2
- 239000004579 marble Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000010526 radical polymerization reaction Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 2
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- CWERGRDVMFNCDR-UHFFFAOYSA-N thioglycolic acid Chemical compound OC(=O)CS CWERGRDVMFNCDR-UHFFFAOYSA-N 0.000 description 2
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 2
- ZICNIEOYWVIEQJ-UHFFFAOYSA-N (2-methylbenzoyl) 2-methylbenzenecarboperoxoate Chemical compound CC1=CC=CC=C1C(=O)OOC(=O)C1=CC=CC=C1C ZICNIEOYWVIEQJ-UHFFFAOYSA-N 0.000 description 1
- LGJCFVYMIJLQJO-UHFFFAOYSA-N 1-dodecylperoxydodecane Chemical compound CCCCCCCCCCCCOOCCCCCCCCCCCC LGJCFVYMIJLQJO-UHFFFAOYSA-N 0.000 description 1
- ZKEUVTROUPQVTM-UHFFFAOYSA-N 1-pentylperoxypentane Chemical compound CCCCCOOCCCCC ZKEUVTROUPQVTM-UHFFFAOYSA-N 0.000 description 1
- HKNNAYPWWDWHFR-UHFFFAOYSA-N 1-sulfanylbutan-1-ol Chemical class CCCC(O)S HKNNAYPWWDWHFR-UHFFFAOYSA-N 0.000 description 1
- AKIZPWSPNKVOMT-UHFFFAOYSA-N 1-sulfanylhexan-1-ol Chemical compound CCCCCC(O)S AKIZPWSPNKVOMT-UHFFFAOYSA-N 0.000 description 1
- AEUVIXACNOXTBX-UHFFFAOYSA-N 1-sulfanylpropan-1-ol Chemical compound CCC(O)S AEUVIXACNOXTBX-UHFFFAOYSA-N 0.000 description 1
- YAJYJWXEWKRTPO-UHFFFAOYSA-N 2,3,3,4,4,5-hexamethylhexane-2-thiol Chemical compound CC(C)C(C)(C)C(C)(C)C(C)(C)S YAJYJWXEWKRTPO-UHFFFAOYSA-N 0.000 description 1
- AVTLBBWTUPQRAY-UHFFFAOYSA-N 2-(2-cyanobutan-2-yldiazenyl)-2-methylbutanenitrile Chemical compound CCC(C)(C#N)N=NC(C)(CC)C#N AVTLBBWTUPQRAY-UHFFFAOYSA-N 0.000 description 1
- CKSAKVMRQYOFBC-UHFFFAOYSA-N 2-cyanopropan-2-yliminourea Chemical compound N#CC(C)(C)N=NC(N)=O CKSAKVMRQYOFBC-UHFFFAOYSA-N 0.000 description 1
- FRIBMENBGGCKPD-UHFFFAOYSA-N 3-(2,3-dimethoxyphenyl)prop-2-enal Chemical compound COC1=CC=CC(C=CC=O)=C1OC FRIBMENBGGCKPD-UHFFFAOYSA-N 0.000 description 1
- MKTOIPPVFPJEQO-UHFFFAOYSA-N 4-(3-carboxypropanoylperoxy)-4-oxobutanoic acid Chemical compound OC(=O)CCC(=O)OOC(=O)CCC(O)=O MKTOIPPVFPJEQO-UHFFFAOYSA-N 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229910021580 Cobalt(II) chloride Inorganic materials 0.000 description 1
- 229910021591 Copper(I) chloride Inorganic materials 0.000 description 1
- YIVJZNGAASQVEM-UHFFFAOYSA-N Lauroyl peroxide Chemical compound CCCCCCCCCCCC(=O)OOC(=O)CCCCCCCCCCC YIVJZNGAASQVEM-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical group OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000007983 Tris buffer Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 1
- 239000012935 ammoniumperoxodisulfate Substances 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 238000012662 bulk polymerization Methods 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- GVPFVAHMJGGAJG-UHFFFAOYSA-L cobalt dichloride Chemical compound [Cl-].[Cl-].[Co+2] GVPFVAHMJGGAJG-UHFFFAOYSA-L 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- OXBLHERUFWYNTN-UHFFFAOYSA-M copper(I) chloride Chemical compound [Cu]Cl OXBLHERUFWYNTN-UHFFFAOYSA-M 0.000 description 1
- XJOBOFWTZOKMOH-UHFFFAOYSA-N decanoyl decaneperoxoate Chemical compound CCCCCCCCCC(=O)OOC(=O)CCCCCCCCC XJOBOFWTZOKMOH-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 1
- WNAHIZMDSQCWRP-UHFFFAOYSA-N dodecane-1-thiol Chemical compound CCCCCCCCCCCCS WNAHIZMDSQCWRP-UHFFFAOYSA-N 0.000 description 1
- 238000002036 drum drying Methods 0.000 description 1
- 239000003480 eluent Substances 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000005227 gel permeation chromatography Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 125000003253 isopropoxy group Chemical group [H]C([H])([H])C([H])(O*)C([H])([H])[H] 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- UOGMEBQRZBEZQT-UHFFFAOYSA-L manganese(2+);diacetate Chemical compound [Mn+2].CC([O-])=O.CC([O-])=O UOGMEBQRZBEZQT-UHFFFAOYSA-L 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- DUVTXUGBACWHBP-UHFFFAOYSA-N methyl 2-(1h-benzimidazol-2-ylmethoxy)benzoate Chemical compound COC(=O)C1=CC=CC=C1OCC1=NC2=CC=CC=C2N1 DUVTXUGBACWHBP-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 description 1
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 description 1
- SRSFOMHQIATOFV-UHFFFAOYSA-N octanoyl octaneperoxoate Chemical compound CCCCCCCC(=O)OOC(=O)CCCCCCC SRSFOMHQIATOFV-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 125000005385 peroxodisulfate group Chemical group 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920005646 polycarboxylate Polymers 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229940088417 precipitated calcium carbonate Drugs 0.000 description 1
- 238000012673 precipitation polymerization Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000012488 sample solution Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 238000001256 steam distillation Methods 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- KQYLUTYUZIVHND-UHFFFAOYSA-N tert-butyl 2,2-dimethyloctaneperoxoate Chemical compound CCCCCCC(C)(C)C(=O)OOC(C)(C)C KQYLUTYUZIVHND-UHFFFAOYSA-N 0.000 description 1
- OPQYOFWUFGEMRZ-UHFFFAOYSA-N tert-butyl 2,2-dimethylpropaneperoxoate Chemical compound CC(C)(C)OOC(=O)C(C)(C)C OPQYOFWUFGEMRZ-UHFFFAOYSA-N 0.000 description 1
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 1
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 description 1
- BWSZXUOMATYHHI-UHFFFAOYSA-N tert-butyl octaneperoxoate Chemical compound CCCCCCCC(=O)OOC(C)(C)C BWSZXUOMATYHHI-UHFFFAOYSA-N 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- FZVZKKLCQTZRTJ-UHFFFAOYSA-L vanadium(2+);diacetate Chemical compound [V+2].CC([O-])=O.CC([O-])=O FZVZKKLCQTZRTJ-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/18—Carbonates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/06—Selection or use of additives to aid disintegrating
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/18—Carbonates
- C01F11/185—After-treatment, e.g. grinding, purification, conversion of crystal morphology
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
- C08F20/04—Acids, Metal salts or ammonium salts thereof
- C08F20/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/22—Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S423/00—Chemistry of inorganic compounds
- Y10S423/09—Reaction techniques
- Y10S423/15—Comminution
Definitions
- the present invention relates to the use of polyacrylic acids which contain at least two carbon-containing, sulfur-containing organic end groups, have an average molecular weight M w of 5,000 to 30,000 g / mol and are at least partially neutralized by a base selected from the group of alkali metal hydroxides and ammonia are as aids for the wet grinding of calcium carbonate.
- the invention also relates to finely divided aqueous suspensions of calcium carbonate which have been prepared by wet grinding of calcium carbonate in the presence of these polyacrylic acids.
- Aqueous calcium carbonate suspensions are usually prepared by wet grinding natural calcium carbonate using polycarboxylates as grinding aids. Such calcium carbonate suspensions are used as fillers and white pigments in paper manufacture and in the paint industry. A good fineness of the ground pigment is necessary for good application properties, which should be achieved in the shortest possible meal. In addition, the pigment suspensions must have good storage stability, since the grinding process and further processing often have a standstill of several days and the suspensions must remain pumpable over this period.
- JP-A-2000-281959 describes the wet grinding of calcium carbonate using acrylic acid homopolymers and copolymers which have different end groups and are neutralized by a base mixture.
- the preferred polymers have average molecular weights M w in the range from 4000 to 10,000 g / mol and are present as a mixed alkaline earth metal / alkali metal salt.
- EP-A-313483 describes the use of the sodium salts of acrylic acid homopolymers and copolymers with an average molecular weight M w of up to 7000 g / mol for aqueous grinding of lime.
- the polymers are stressed in the molecular molecular weight range from 200 to 1 900 g / mol, no information is given about the regulators used in the polymerization.
- DE-A-36 20 149 describes the production of acrylic acid homo- and in particular copolymers using an initiator system composed of hydrogen peroxide, iron (II) sulfate and mercaptoethanol and the use of the non-neutralized polymers as dispersants.
- US Pat. No. 6,395,813 discloses the use of phosphonate-terminated acrylic acid homopolymers and copolymers having an average molecular weight M w of 2,000 to 5,800 g / mol as dispersants for calcium carbonate.
- the object of the invention was to provide grinding aids for the wet grinding of calcium carbonate, which have excellent grinding efficiency and make calcium carbonate suspensions of excellent stability accessible.
- polyacrylic acids which contain at least two carbon-containing, sulfur-containing organic end groups, have an average molecular weight M w of 5,000 to 30,000 g / mol and was at least partially neutralized by a base selected from the group of alkali metal hydroxides and ammonia are found as tools for the wet grinding of calcium carbonate.
- finely divided aqueous suspensions of calcium carbonate were found which were prepared by wet grinding of calcium carbonate in the presence of these polyacrylic acids or which contain 0.1 to 2% by weight of these polyacrylic acids.
- the polyacrylic acids to be used according to the invention preferably contain, as sulfur-containing organic end groups, alkylthio groups which can be substituted by hydroxy, amino and / or carboxy, have a total of 2 to 20, preferably 2 to 12, carbon atoms and are straight-chain or branched.
- Alkylthio groups which are substituted in the ⁇ -position by hydroxy or carboxy are particularly suitable. Examples include: 2-hydroxyethylthio, 3-hydroxypropylthio, 4-hydroxybutylthio, 6-hydroxyhexylthio, carboxymethylthio, 2-carboxyethylthio, dodecylthio and tert-dodecylthio, carboxymethylthio being preferred and 2-hydroxyethylthio being particularly preferred.
- the polyacrylic acids to be used according to the invention have an average molecular weight M w of 5000 to 30,000 g / mol, preferably of 7,500 to 20,000 g / mol.
- the polyacrylic acids to be used according to the invention are at least partially neutralized by a base selected from the group of alkali metal hydroxides and ammonia.
- Lithium hydroxide, sodium hydroxide, potassium hydroxide or ammonia are particularly suitable for neutralization; sodium hydroxide or ammonia are preferred, with sodium hydroxide being particularly preferred.
- the degree of neutralization of the polyacrylic acids to be used according to the invention is preferably 50 to 100%, in particular 70 to 100%.
- the polyacrylic acids to be used according to the invention can be obtained by radical polymerization of acrylic acid. All known radical polymerization processes, such as solution polymerization, emulsion polymerization, precipitation polymerization, suspension polymerization and bulk polymerization, can be used.
- Solution polymerization in water is preferred, the monomer concentration being in particular 10 to 70% by weight, especially 20 to 60% by weight.
- Suitable polymerization initiators are compounds which form free radicals under the polymerization conditions, thermally activatable initiators being preferred. Examples include:
- peroxodisulfates e.g. lithium, potassium and ammonium peroxodisulfate, especially sodium peroxodisulfate (sodium persulfate), peroxosulfates, percarbonates and hydrogen peroxide
- peroxodisulfates e.g. lithium, potassium and ammonium peroxodisulfate, especially sodium peroxodisulfate (sodium persulfate), peroxosulfates, percarbonates and hydrogen peroxide
- organic peroxo compounds such as diacetyl peroxide, dioctanoyl peroxide, didecanoyl peroxide, dilauroyl peroxide, dibenzoyl peroxide, bis (o-toloyl) peroxide, succinyl peroxide, di-tert.-butyl peroxide, diamyl peroxide, dilauryl peroxide, methyl ethyl acetate ketone peroxide, acetylene ethyl peroxide.
- organic peroxo compounds such as diacetyl peroxide, dioctanoyl peroxide, didecanoyl peroxide, dilauroyl peroxide, dibenzoyl peroxide, bis (o-toloyl) peroxide, succinyl peroxide, di-tert.-butyl peroxide, diamyl peroxide, dilauryl peroxide, methyl
- Azo compounds such as 2,2'-azobisisobutyronitrile, 2,2'-azobis (2-methylbutyronitrile), 2,2'-azobis (2-amidinopropane) dihydrochloride, 2- (carbamoylazo) isobutyronitrile and 4,4'-azobis (4th -cyanovalerianchure).
- the initiators can be used alone or in the form of mixtures. Usual amounts are 0.05 to 15 wt .-%, preferably 0.5 to 7 wt .-%, each based on the monomer acrylic acid.
- Combinations of the initiators with redox catalysts in which the reducing component is in molar deficiency are also suitable.
- redox catalysts are transition metal salts such as iron (II) sulfate, cobalt (II) chloride, nickel (II) sulfate, copper (I) chloride, manganese (II) acetate and vanadium (II) acetate.
- the sulfur-containing compounds which lead to the incorporation of the sulfur-containing end groups already described in more detail into the polymer are used as regulators in the preparation of the polyacrylic acids to be used according to the invention.
- Examples include mercaptoethanol, mercaptopropanol, mercaptobutanols, mercaptohexanol, thioglycolic acid, dodecyl mercaptan and tert-dodecyl mercaptan, mercaptoethanol being particularly preferred.
- regulators are used, based in each case on the monomer acrylic acid, 0.5 to 35 mol%, especially 3 to 20 mol%.
- the polymerization temperature is generally 70 to 150 ° C, preferably 80 to 130 ° C.
- the reaction mixture is particularly preferably boiled.
- the polymerization can be carried out under atmospheric, reduced or elevated pressure, but it is preferably carried out in a closed system under the self-developing pressure (usually from 1 to 5 bar).
- the preparation of the polyacrylic acids to be used according to the invention can be carried out by placing acrylic acid and regulator in water, heating to the reaction temperature and starting the polymerization by adding the initiator. However, you can also just put the regulator in water and after heating acrylic Add acid and initiator separately. Last but not least, both regulator and acrylic acid and initiator can be added and polymerized separately at once, batchwise or, preferably, continuously in water heated to the polymerization temperature.
- the polymerization is preferably carried out in the absence of oxygen, especially under an inert gas atmosphere, e.g. carried out under nitrogen. It is advisable to ensure thorough mixing of the reactants during the polymerization.
- the polyacrylic acids to be used according to the invention are used in at least partially neutralized form. They are therefore preferably reacted with ammonia or in particular with sodium hydroxide solution after the polymerization has ended. However, the acrylic acid can also be completely or partially neutralized before the polymerization.
- the polyacrylic acids to be used according to the invention are obtained as aqueous solutions with a solids content of generally 10 to 70% by weight, preferably 20 to 60% by weight, and are usually also used in the form of these solutions as grinding aids.
- polyacrylic acids to be used according to the invention are outstandingly suitable as grinding aids for the wet grinding of calcium carbonate.
- the calcium carbonate can be in natural form as limestone, chalk or marble or in synthetic form as precipitated calcium carbonate.
- the grinding is carried out continuously or batchwise in an aqueous suspension.
- the calcium carbonate content in this suspension is generally> 50% by weight, preferably> 60% by weight and particularly preferably> 70% by weight.
- suspensions of particularly finely divided calcium carbonate (generally have at least 90% of the particles of ⁇ 2 ⁇ m for coating colors) can be obtained without problems and in short meals.
- the calcium carbonate suspensions obtained according to the invention have excellent theological properties and are still pumpable even after storage for 24 hours.
- the calcium carbonate suspensions according to the invention can be used excellently as white pigments in papermaking and in paints and as fillers in thermoplastics. If desired, they can be dried through various drying processes, e.g. Spray drying, drum drying or paddle drying can be transferred in powder form.
- the average molecular weights M w given for the polyacrylic acids prepared were determined by gel permeation chromatography in an aqueous phase using a polyacrylate standard.
- TRIS buffer tris (hydroxymethyl) aminomethane, Merck, Darmstadt
- the flow rate was 0.5 ml / min.
- the number of trays of the column combination at this flow rate was 37,000.
- a ERC 7510 differential refractometer from ERMA was used as the detector. The evaluation was terminated after a flow volume of 39.6 ml (M (Na-PAA) approx. 642) (integration limit). The integration of the chromatograms received was based on DIN 55672-1 with an accuracy of + 3%.
- a pH of 7.0 was set by adding 42.00 kg of 50% strength by weight sodium hydroxide solution, the temperature being kept at ⁇ 80 ° C. by cooling. 0.420 kg of 50% strength by weight hydrogen peroxide solution were then metered in at 80 ° C. in the course of 1 h and the mixture was stirred for a further 2 h.
- Example 2 The procedure was analogous to Example 1, but only 80% of the polyacrylic acid obtained was neutralized by adding 33.60 kg of 50% strength by weight sodium hydroxide solution and setting a pH of 6.7.
- Example 2 The procedure was analogous to Example 1, but only 0.2 kg of sodium persulfate and 0.4 kg of mercaptoethanol were used and metered in as in Example 1. In addition, a pH of 6.9 was set by adding the amount of sodium hydroxide solution given in Example 1. An almost colorless, clear solution of a polyacrylic acid sodium salt with an average molecular weight M w of 15,500 g / mol was obtained (solids content of the solution: 46.3% by weight).
- a pH of 7.5 was set by adding 589.5 g of 50% strength by weight sodium hydroxide solution, the temperature being kept at ⁇ 80 ° C. by cooling. 21.0 g of 50% strength by weight hydrogen peroxide solution were then metered in at 80 ° C. in the course of 1 h and the mixture was subsequently stirred for 4 h.
- Comparative Example V3 41.53 g of distilled water, 235.34 g of isopropanol and 12.73 g of a 50% strength by weight hydrogen peroxide solution were placed in a pressure reactor with a stirrer, nitrogen supply and metering device. The closed reactor was evacuated and heated to 120 ° C internal temperature. A mixture of 560.32 g of acrylic acid, 275.44 g of isopropanol and 48.63 g of water was then added continuously in two separate feeds in 6 h and 25.91 g of 50% strength by weight hydrogen peroxide solution in 8 h. The mixture was then cooled to 80 ° C. and, after the isopropanol had been distilled off, steam distillation was carried out. A pH of 7.3 was then set by adding 570 g of 50% strength by weight sodium hydroxide solution and a solids content of about 50% was set by adding distilled water.
- a light brown, slightly cloudy solution of a mixed calcium / sodium salt (molar ratio 70:30) of polyacrylic acid with an average molecular weight M w of 4,500 g / mol was obtained (solids content of the solution: 45.0% by weight).
- the slurry was filtered to separate the glass beads through a 780 ⁇ m filter using a porcelain suction filter.
- the viscosity of the slurry was determined immediately and after 24 hours using a Brookfield DV II viscometer.
- the particle size of the ground calcium carbonate pigment was measured by laser diffraction using a Malvern Master Sizer type device and stated in percentages ⁇ 2 ⁇ m.
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- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
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Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003111617 DE10311617A1 (de) | 2003-03-14 | 2003-03-14 | Verwendung von Polyacrylsäuren als Mahlhilfsmittel für Calciumcarbonat |
| DE10311617 | 2003-03-14 | ||
| PCT/EP2004/002242 WO2004080899A1 (de) | 2003-03-14 | 2004-03-05 | Verwendung von polyacrylsäuren als mahlhilfsmittel für calciumcarbonat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1608594A1 true EP1608594A1 (de) | 2005-12-28 |
Family
ID=32892281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04717583A Ceased EP1608594A1 (de) | 2003-03-14 | 2004-03-05 | Verwendung von polyacrylsäuren als mahlhilfsmittel für calciumcarbonat |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US7297205B2 (de) |
| EP (1) | EP1608594A1 (de) |
| JP (1) | JP4814079B2 (de) |
| KR (1) | KR101056098B1 (de) |
| CN (1) | CN1321065C (de) |
| AU (1) | AU2004220376A1 (de) |
| BR (1) | BRPI0408252B8 (de) |
| CA (1) | CA2518622A1 (de) |
| DE (1) | DE10311617A1 (de) |
| MX (1) | MXPA05009702A (de) |
| NO (1) | NO20054353L (de) |
| WO (1) | WO2004080899A1 (de) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007161537A (ja) * | 2005-12-14 | 2007-06-28 | Oji Paper Co Ltd | 軽質炭酸カルシウムスラリー |
| WO2007094076A1 (ja) * | 2006-02-17 | 2007-08-23 | San Nopco Ltd. | 重質炭酸カルシウムスラリーの製造方法 |
| US7468101B2 (en) | 2006-08-17 | 2008-12-23 | Specialty Minerals (Michigan) Inc. | UV varnish gloss performance using novel pigment and process for making same |
| FR2933419B1 (fr) * | 2008-07-07 | 2010-08-20 | Coatex Sas | Utilisation de polymeres(meth) acryliques dans un procede de fabrication d'une suspension aqueuse de carbonate de calcium |
| DK2143688T3 (en) * | 2008-07-07 | 2017-01-09 | Omya Int Ag | A process for the preparation of aqueous suspensions of calcium carbonate, and the resulting suspensions as well as uses thereof |
| EP2199348A1 (de) * | 2008-12-19 | 2010-06-23 | Omya Development AG | Verfahren zur Herstellung von wässrigen Suspensionen von mineralischen Materialien oder getrockneten mineralischen Materialien, erhaltendes Produkt und Verwendungen dafür |
| KR101783494B1 (ko) * | 2009-11-04 | 2017-09-29 | 바스프 에스이 | 폴리아크릴산 수용액의 제조 방법 |
| ES2383589T5 (es) | 2010-05-28 | 2017-08-28 | Omya International Ag | Procedimiento de fabricación de suspensiones de materiales minerales con alto contenido de sólidos |
| CN101869861B (zh) * | 2010-06-24 | 2012-04-25 | 常德市磊鑫矿业科技有限公司 | 重钙湿法研磨分散剂的滴加方法 |
| WO2012083196A2 (en) | 2010-12-17 | 2012-06-21 | Basf Corporation | Stable polyacrylic acids, their manufacture and their use |
| ES2587504T3 (es) * | 2012-09-26 | 2016-10-25 | Omya International Ag | Suspensiones acuosas de material mineral reológicamente estables que comprenden polímeros orgánicos que tienen contenido reducido de compuestos orgánicos volátiles (COV) |
| CN103884781B (zh) * | 2012-12-21 | 2015-09-09 | 乐凯华光印刷科技有限公司 | 一种阳图无处理版用亲水性聚合物的凝胶过滤色谱分析方法 |
| US11014858B2 (en) | 2016-03-30 | 2021-05-25 | Gcp Applied Technologies Inc. | Mineral grinding |
| WO2018081964A1 (en) | 2016-11-02 | 2018-05-11 | Basf Se | Acrylic acid polymers neutralized with sodium and calcium ions and having a narrow molecular weight distribution |
| CA3131578A1 (en) | 2019-02-06 | 2020-08-13 | Monosol, Llc | Water-soluble coatings for substrate surfaces |
| FR3093012B1 (fr) * | 2019-02-26 | 2021-01-22 | Coatex Sas | Réduction de l’hygroscopicité d’un matériau minéral |
| KR102728065B1 (ko) | 2019-11-07 | 2024-11-07 | 코니카 미놀타 가부시키가이샤 | 플리커 계측 장치 및 계측 방법 |
| WO2021228928A1 (en) | 2020-05-13 | 2021-11-18 | Basf Se | Biocide free pigment dispersions and methods of preparing them |
| CN115667861A (zh) | 2020-06-01 | 2023-01-31 | 柯尼卡美能达株式会社 | 光波形测量装置及测量方法 |
| US20240228787A1 (en) | 2021-04-09 | 2024-07-11 | Basf Se | Use of polyethers for pigment dispersions |
| FR3135083A1 (fr) * | 2022-04-27 | 2023-11-03 | Coatex | Suspension minérale stabilisée |
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| DE4004953A1 (de) * | 1990-02-19 | 1991-08-22 | Stockhausen Chem Fab Gmbh | Verfahren zur herstellung von polyacrylsaeuren |
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| US3604634A (en) | 1969-10-28 | 1971-09-14 | English Clays Lovering Pochin | Comminution of solid materials |
| GB1599632A (en) * | 1977-01-19 | 1981-10-07 | English Clays Lovering Pochin | Comminution of solid materials |
| JPS53129200A (en) * | 1977-04-18 | 1978-11-10 | Shiraishi Kogyo Kk | Dispersant for calcium carbonate |
| JPS53144499A (en) * | 1977-05-24 | 1978-12-15 | Nippon Shokubai Kagaku Kogyo Co Ltd | Method of producing calcium carbonate water dispersion |
| JPS546909A (en) * | 1977-06-16 | 1979-01-19 | Shiraishi Kogyo Kaisha Ltd | Aqueous pigment dispersion for paper coating |
| JPS57184430A (en) * | 1981-05-07 | 1982-11-13 | Shiraishi Chuo Kenkyusho:Kk | High concn. low viscosity calcium carbonate aqueous dispersion and coating composition therefor |
| FR2539137A1 (fr) * | 1982-08-06 | 1984-07-13 | Coatex Sa | Agent de broyage a base de polymeres et/ou copolymeres acryliques neutralises pour suspension aqueuse de materiaux mineraux grossiers en vue d'applications pigmentaires |
| FR2531444A1 (fr) * | 1982-08-06 | 1984-02-10 | Coatex Sa | Agent de broyage a base de polymeres et/ou copolymeres acryliques pour suspension aqueuse de materiaux mineraux grossiers en vue d'applications pigmentaires |
| ATE25958T1 (de) * | 1982-11-10 | 1987-04-15 | Allied Colloids Ltd | Calciumcarbonat dispersionen. |
| DE3364096D1 (en) * | 1982-12-04 | 1986-07-17 | Basf Ag | Process for preparing powdery polymers, and their use |
| DE3244989A1 (de) * | 1982-12-04 | 1984-06-07 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von pulverfoermigen polymerisaten und deren verwendung |
| JPS59193126A (ja) * | 1983-04-18 | 1984-11-01 | Kao Corp | 炭酸カルシウム用分散剤 |
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| US5275650A (en) * | 1987-10-23 | 1994-01-04 | Coatex S.A. | Agent for grinding lime to augment its reactivity |
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| US5181662A (en) * | 1989-01-27 | 1993-01-26 | Coatex S.A. | Process for grinding calcium carbonate in aqueous media |
| US5573188A (en) * | 1989-01-27 | 1996-11-12 | Coatex S.A. | Process for grinding calcium carbonate in aqueous media |
| FR2642415B1 (fr) * | 1989-01-27 | 1991-04-05 | Coatex Sa | Procede de broyage de carbonate de calcium en milieu aqueux |
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| JP2002090550A (ja) | 2000-09-18 | 2002-03-27 | Toyota Industries Corp | 導光板 |
-
2003
- 2003-03-14 DE DE2003111617 patent/DE10311617A1/de not_active Withdrawn
-
2004
- 2004-03-05 KR KR1020057016785A patent/KR101056098B1/ko not_active Expired - Fee Related
- 2004-03-05 JP JP2006504549A patent/JP4814079B2/ja not_active Expired - Fee Related
- 2004-03-05 EP EP04717583A patent/EP1608594A1/de not_active Ceased
- 2004-03-05 AU AU2004220376A patent/AU2004220376A1/en not_active Abandoned
- 2004-03-05 US US10/548,582 patent/US7297205B2/en not_active Expired - Fee Related
- 2004-03-05 CN CNB2004800069073A patent/CN1321065C/zh not_active Expired - Fee Related
- 2004-03-05 MX MXPA05009702A patent/MXPA05009702A/es active IP Right Grant
- 2004-03-05 BR BRPI0408252-4A patent/BRPI0408252B8/pt not_active IP Right Cessation
- 2004-03-05 WO PCT/EP2004/002242 patent/WO2004080899A1/de not_active Ceased
- 2004-03-05 CA CA002518622A patent/CA2518622A1/en not_active Abandoned
-
2005
- 2005-09-20 NO NO20054353A patent/NO20054353L/no not_active Application Discontinuation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4004953A1 (de) * | 1990-02-19 | 1991-08-22 | Stockhausen Chem Fab Gmbh | Verfahren zur herstellung von polyacrylsaeuren |
Non-Patent Citations (1)
| Title |
|---|
| See also references of WO2004080899A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1761619A (zh) | 2006-04-19 |
| NO20054353L (no) | 2005-09-27 |
| KR101056098B1 (ko) | 2011-08-11 |
| US7297205B2 (en) | 2007-11-20 |
| CN1321065C (zh) | 2007-06-13 |
| DE10311617A1 (de) | 2004-09-23 |
| JP2006521988A (ja) | 2006-09-28 |
| CA2518622A1 (en) | 2004-09-23 |
| JP4814079B2 (ja) | 2011-11-09 |
| BRPI0408252B1 (pt) | 2013-01-08 |
| BRPI0408252B8 (pt) | 2013-02-19 |
| BRPI0408252A (pt) | 2006-03-01 |
| MXPA05009702A (es) | 2005-10-18 |
| KR20050103979A (ko) | 2005-11-01 |
| US20060287423A1 (en) | 2006-12-21 |
| AU2004220376A1 (en) | 2004-09-23 |
| WO2004080899A1 (de) | 2004-09-23 |
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