WO2010070407A1 - Utilisation de polymeres acryliques neutralises par le lithium comme agents dispersants ou d'aide au broyage en milieu aqueux de matieres minerales - Google Patents
Utilisation de polymeres acryliques neutralises par le lithium comme agents dispersants ou d'aide au broyage en milieu aqueux de matieres minerales Download PDFInfo
- Publication number
- WO2010070407A1 WO2010070407A1 PCT/IB2009/007671 IB2009007671W WO2010070407A1 WO 2010070407 A1 WO2010070407 A1 WO 2010070407A1 IB 2009007671 W IB2009007671 W IB 2009007671W WO 2010070407 A1 WO2010070407 A1 WO 2010070407A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- use according
- grinding
- agent
- mineral
- dispersing
- Prior art date
Links
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 54
- 239000011707 mineral Substances 0.000 title claims abstract description 54
- 238000000227 grinding Methods 0.000 title claims abstract description 39
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 30
- 239000000463 material Substances 0.000 title claims abstract description 20
- 229920000058 polyacrylate Polymers 0.000 title description 12
- 239000012736 aqueous medium Substances 0.000 title description 6
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 22
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000006185 dispersion Substances 0.000 claims abstract description 16
- 229920001519 homopolymer Polymers 0.000 claims abstract description 14
- 239000007900 aqueous suspension Substances 0.000 claims abstract description 13
- 239000000178 monomer Substances 0.000 claims abstract description 13
- 229920001577 copolymer Polymers 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 11
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910001416 lithium ion Inorganic materials 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 40
- 239000000725 suspension Substances 0.000 claims description 22
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 10
- 239000002270 dispersing agent Substances 0.000 claims description 10
- 229910052744 lithium Inorganic materials 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 8
- 238000010526 radical polymerization reaction Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- 238000006386 neutralization reaction Methods 0.000 claims description 6
- 238000012546 transfer Methods 0.000 claims description 6
- -1 hydrocarbon radical Chemical class 0.000 claims description 5
- 150000002500 ions Chemical class 0.000 claims description 5
- 238000006116 polymerization reaction Methods 0.000 claims description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 4
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 4
- 238000001556 precipitation Methods 0.000 claims description 4
- 239000005995 Aluminium silicate Substances 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 3
- 235000012211 aluminium silicate Nutrition 0.000 claims description 3
- 239000011575 calcium Substances 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 239000012989 trithiocarbonate Substances 0.000 claims description 3
- 239000012991 xanthate Substances 0.000 claims description 3
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 claims description 2
- 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 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 2
- 239000004215 Carbon black (E152) Substances 0.000 claims description 2
- 239000012988 Dithioester Substances 0.000 claims description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 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 claims description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical class CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 125000002947 alkylene group Chemical group 0.000 claims description 2
- 150000004657 carbamic acid derivatives Chemical class 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 230000003197 catalytic effect Effects 0.000 claims description 2
- 125000005022 dithioester group Chemical group 0.000 claims description 2
- 239000000839 emulsion Substances 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 2
- 239000011777 magnesium Substances 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- 125000005395 methacrylic acid group Chemical group 0.000 claims description 2
- 239000002798 polar solvent Substances 0.000 claims description 2
- 239000011591 potassium Substances 0.000 claims description 2
- 229910052700 potassium Inorganic materials 0.000 claims description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000000454 talc Substances 0.000 claims description 2
- 229910052623 talc Inorganic materials 0.000 claims description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 2
- 150000003463 sulfur Chemical class 0.000 claims 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 abstract 1
- 235000010755 mineral Nutrition 0.000 description 45
- 229920000642 polymer Polymers 0.000 description 17
- 235000010216 calcium carbonate Nutrition 0.000 description 14
- 238000012360 testing method Methods 0.000 description 14
- 239000002245 particle Substances 0.000 description 13
- 229910000019 calcium carbonate Inorganic materials 0.000 description 12
- 239000007787 solid Substances 0.000 description 11
- 238000002360 preparation method Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 229940088417 precipitated calcium carbonate Drugs 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 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
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 239000004579 marble Substances 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004438 BET method Methods 0.000 description 1
- 229910021532 Calcite Inorganic materials 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012712 reversible addition−fragmentation chain-transfer polymerization Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 235000010215 titanium dioxide Nutrition 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000001238 wet grinding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/02—Compounds of alkaline earth metals or magnesium
- C09C1/021—Calcium carbonates
-
- 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
- C08F20/10—Esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or 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 of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/40—Compounds of aluminium
- C09C1/42—Clays
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
-
- 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
- C01P2006/12—Surface area
-
- 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
Definitions
- the present invention relates to the agents used to disperse or to assist in the grinding of mineral matter in a humid environment.
- This invention is based on the use of lithium as a particular neutralizing agent for these polyacrylates. Surprisingly and advantageously, it is possible to reduce the amount of dispersing agent or grinding aid used, while maintaining the aforementioned properties compared with those obtained with the polyacrylates of the prior art which are neutralized differently.
- One method for reducing this polymolecularity index consists, for a given polymer, in isolating the chains of a certain molecular weight by separation techniques, static or dynamic, in the presence of solvents, as described in document EP 0 499 267.
- Another way is based on the implementation of so-called "controlled" radical polymerization (PRC).
- PRC controlled radical polymerization
- This term refers to synthetic techniques based on the use of particular chain transfer agents, such as xanthates or trithiocarbonates (see EP 1 529 065 and EP 1 377 615).
- the Applicant has managed to develop the use, in a manufacturing process of an aqueous dispersion of mineral material by dispersion and / or grinding, as a dispersing agent or grinding aid, d a homopolymer of acrylic acid or a copolymer of acrylic acid with a water-soluble monomer, characterized in that:
- the carboxylic groups of said agent are totally or partially neutralized by the lithium ion, b) it has a viscosity index between 0.01 and 0.08.
- the acrylic polymer of the invention makes it possible to disperse and grind more effectively in aqueous medium a mineral material. As such, it is demonstrated that, for a level of performance at least equivalent (in terms of dry extract, and stability of the Brookfield viscosity measured at 100 revolutions / minute), it is possible according to the invention to reduce the amount of polymer implemented with respect to the prior art.
- agent is totally or partially neutralized with lithium means that all or part of its carboxylic functions are neutralized with lithium.
- the lithium neutralization is partial, the resulting polymer may optionally be completely neutralized, the other carboxylic functions being neutralized by an agent other than lithium.
- the characteristic relating to the viscosity index refers to conventional molecular weight polymers used to disperse or grind a mineral material such as calcium carbonate.
- the range claimed corresponds, by way of indication, to a molecular weight of between 1000 g / mol and 15 000 g / mol for a homopolymer of acrylic acid.
- Viscosity index is preferred which is easily measurable with standard laboratory equipment for homopolymers and copolymers of acrylic acid.
- the determination of a molecular weight requires more sophisticated detection devices and especially, standards that sometimes do not exist commercially in the case of certain copolymers of acrylic acid, depending on the other monomer. .
- a first object of the invention is the use in a manufacturing process of an aqueous suspension of mineral material by dispersion and / or grinding, as a dispersing or grinding aid, a homopolymer of acrylic acid or a copolymer of acrylic acid with a water-soluble monomer, characterized in that:
- the carboxylic groups of said agent are totally or partially neutralized by the lithium ion, b) it has a viscosity index between 0.01 and 0.08.
- This use is also characterized in that the mole percentage of the carboxylic groups neutralized by the lithium ion is between 10% and 100%, preferably between 50% and 100%, very preferably between 80% and 100%, and that the percentage of neutralization by the most preferred lithium ion is equal to 100%.
- lithium ion used to neutralize all or part of the carboxylic groups of said agent is provided in the form of lithium hydroxide.
- lithium may be provided via any other chemical compound carrying this ion.
- this other monomer is selected from methacrylic acid, maleic anhydride, acrylamido methyl propane sulfonic acid, phosphoric esters of alkylene glycol methacrylates, the nonionic monomers of formula (I):
- R is a radical with a function unsaturated polymerizable
- R 1 and R 2 are the same or different and represent hydrogen atoms or alkyl groups
- R ' represents hydrogen or a hydrocarbon radical having 1 to 40 carbon atoms, or an ionic or ionizable group.
- This use is also characterized when a part of the carboxylic groups of said agent is neutralized by another ion than lithium, in that the other ion is chosen from calcium, magnesium, sodium, potassium and ammonium. and their mixtures.
- This use is also characterized in that said agent can be, before or after its total or partial neutralization, be treated and separated into several phases, according to static or dynamic processes, with one or more polar solvents preferentially belonging to the group consisting of water, methanol, ethanol, propanol, isopropanol, butanols, acetone, tetrahydrofuran or mixtures thereof.
- one or more polar solvents preferentially belonging to the group consisting of water, methanol, ethanol, propanol, isopropanol, butanols, acetone, tetrahydrofuran or mixtures thereof.
- agent can be obtained by radical polymerization processes in solution, in direct or inverse emulsion, in suspension or precipitation in solvents, in the presence of catalytic systems and transfer agents, or by controlled radical polymerization processes and preferentially by controlled polymerization with nitroxides (NMP) or by cobaloxymes, radical atom transfer polymerization (ATRP), sulfur-derived controlled radical polymerization, chosen from carbamates, dithioesters or trithiocarbonates (RAFT) or xanthates.
- NMP nitroxides
- ATRP radical atom transfer polymerization
- RAFT trithiocarbonates
- aqueous suspension after dispersion and / or grinding, has initial Brookfield TM viscosities and after 8 days of storage, measured at 25 ° C., at 100 rpm and after 1 minute of stirring. , less than 4000 mPa.s, preferably 2000 mPa.s, very preferably 500 mPa.s.
- aqueous suspension after dispersion and / or grinding, has a dry extract expressed as a percentage by dry weight of mineral matter relative to its total weight, between 10% and 82%, preferably between 50% and 50% by weight. % and 81%, very preferably between 65% and 72%.
- aqueous suspension has a dry weight content of said agent, relative to the total dry weight of mineral matter, of between 0.001% and 5,000%, preferably between 0.001% and 2,000%, and very preferably between 0.05% and 1.00%.
- this use is also characterized in that the process for producing an aqueous suspension of mineral matter by dispersion and / or grinding is a process comprising a first step of grinding without a dispersing agent at a concentration by dry weight. of mineral matter between 10% and 35% of the total weight of the suspension, and a second stage of dispersion in the presence of said agent, at a dry weight concentration of mineral matter of between 65% and 72% of the total weight of the suspension. .
- mineral materials are chosen from natural calcium carbonate, synthetic, talc, kaolin, and mixtures thereof, preferably from natural, synthetic calcium carbonate and mixtures thereof.
- the viscosity indices of the polymers denoted ⁇ , are determined in the following manner.
- the acid form of the compound whose viscosity index must be determined is neutralized to 100% with sodium hydroxide and then diluted to 50 g / l in bipermuted water.
- the specific viscosity is then determined for each solution at 25 ° C. and at atmospheric pressure using a SCHOTT AVS / 500 viscometer equipped with a Ubbelohde tube of reference 53010/1 and constant 0.01 and the specific viscosity curve is plotted as a function of the concentration.
- the linear part of the curve gives the viscosity index: it is the limit of the specific viscosity when the concentration tends to zero.
- This example describes the preparation of mineral materials which will subsequently be dispersed or ground with polymers of the invention or of the prior art.
- This test concerns the preparation of a scalenohedral precipitated calcium carbonate having a d 50 value of 2.3 ⁇ m.
- 200 kg of calcium oxide are introduced into 1700 liters of water at 40 ° C. in a reactor stirred for 30 minutes.
- the resulting suspension has a solids content of 13.3% by dry weight of calcium hydroxide relative to its total weight; it is then sieved through a 100 ⁇ m sieve.
- Precipitation is carried out in a 1800 liter steel cylindrical reactor equipped with an agitator, as well as means for controlling the pH and the conductivity. 1,700 liters of the preceding suspension are introduced into the reactor, the temperature being set at 50 ° C.
- a gas (CO 2 content between 20 and 30% by volume) is then bubbled towards the top of the reactor at a flow rate of 200 m 3 / h, with stirring of between 200 and 300 revolutions / minute, the overpressure of gas being between 150 and 200 mbar, which corresponds to the hydrostatic pressure of the suspension of calcium hydroxide in the reactor.
- the temperature and pressure are not controlled, and can increase, especially because of the exothermic nature of the precipitation reaction.
- the gas flow is maintained for 4 minutes and then cut.
- the product thus obtained is filtered through a 45 ⁇ m sieve and recovered in the form of a suspension whose solids content is 17.4% by dry weight of precipitated calcium carbonate, relative to its total weight.
- Precipitated calcium carbonate particles whose polymorphs are scalenohedron calcites of d 50 equal to 2.3 ⁇ m and specific surface area measured according to the BET method equal to 6.3 m 2 / g are obtained.
- the water of the suspension is dried by evaporation, so as to obtain a solid whose solids content is greater than 99.5% of its total weight.
- This mineral is called mineral 1.
- This test concerns the preparation of a natural calcium carbonate, which is a Norwegian-origin marble, from rocks between 10 and 300 mm in diameter, which are crushed in an autogenous manner until a d 50 of 45 ⁇ m.
- the mineral material obtained is called mineral 2.
- This test concerns the preparation of a natural calcium carbonate which is a marble of Norwegian origin, with a 0.8 ⁇ m decode.
- the mineral 2 is ground in an aqueous medium at a concentration equal to 20% by dry weight of calcium carbonate relative to the total weight of said suspension, in a vertical attrition mill of the Dynomill type, in recirculation mode, without dispersing agent or d grinding aid.
- the grinding is maintained until a degree of fineness is obtained such that 60% by weight of the particles have a mean diameter of less than 1 ⁇ m. After grinding, the particles have a ds 0 of 0.8 microns.
- the suspension After grinding, the suspension is concentrated in a tube press to form a filter cake whose solids content is between 80 and 83% of their total weight.
- the mineral material obtained is called mineral 3.
- This test concerns the preparation of two natural calcium carbonates which are marbles of Norwegian origin, with a d 50 of 0.6 ⁇ m.
- the mineral 2 is ground in an aqueous medium at a concentration of between 15% and 25% by dry weight of calcium carbonate relative to the total weight of said suspension, in a vertical attrition mill of Dynomill type, in recirculation mode, without agent. dispersant or grinding aid. Grinding is maintained until a degree of fineness such that 75% by weight of the particles have a mean diameter of less than 1 micron. After grinding, the particles have a d 50 of 0.6 ⁇ m.
- the suspension obtained is concentrated in a filter press so as to obtain a cake whose dry extract is equal to 69.5% of its total weight.
- the mineral material obtained is called mineral 4.
- This test concerns the preparation of two natural calcium carbonates which are marbles of Norwegian origin, with a d 50 of 0.4 ⁇ m.
- the mineral 2 is ground in an aqueous medium at a concentration equal to 20% by dry weight of calcium carbonate relative to the total weight of said suspension, in a vertical attrition mill of the Dynomill type, in recirculation mode, without dispersing agent or d grinding aid.
- the grinding is maintained until a degree of fineness is obtained such that 85% by weight of the particles have an average diameter of less than 1 ⁇ m. After grinding, the particles have a d 50 of 0.4 microns.
- the suspension obtained is concentrated in a tube-press so as to obtain a cake whose dry extract is between 78% and 80% of its total weight.
- the mineral material obtained is called mineral 5.
- This test relates to the implementation of homopolymers and copolymers of acrylic acid according to the prior art and according to the invention, for dispersing the natural calcium carbonate called mineral 4, in order to obtain a given dry extract ( ES in% by dry weight of mineral matter relative to the total weight of the suspension).
- This test relates to the implementation of homopolymers of acrylic acid according to the prior art and according to the invention, for dispersing the natural calcium carbonate called mineral 3, in order to obtain a given solids content (% ES in dry weight of mineral matter relative to the total weight of the suspension).
- said calcium carbonate and the polymer are introduced into a Pendraulik-type mixer at a speed of about 3000 rpm for 5 to 10 minutes.
- This test relates to the implementation of homopolymers and copolymers of acrylic acid according to the prior art and according to the invention, for dispersing the natural calcium carbonate called mineral 5, in order to obtain a given dry extract (ES in% by dry weight of mineral matter relative to the total weight of the suspension).
- said calcium carbonate and the polymer are introduced into a Pendraulik-type mixer at a speed of about 3000 rpm for 5 to 10 minutes.
- This test relates to the implementation of homopolymers of acrylic acid according to the prior art and according to the invention, for grinding the calcium carbonate called mineral 2.
- the mineral 1 is milled in a Dynomill-type vertical mill in the recirculation mode, until a degree of fineness is obtained such that 50% by weight of the particles have a mean diameter of less than 0.7 ⁇ m.
- the% by weight of the particles is noted, respectively, denoted% ⁇ 0.2 ⁇ m ⁇ 1 ⁇ m and% ⁇ 2 ⁇ m.
- This example illustrates the implementation of homopolymers of acrylic acid according to the invention and according to the prior art, for grinding and then dispersing a precipitated calcium carbonate which is the mineral 1.
- said calcium carbonate and the polymer are introduced into a Pendraulik-type mixer at a speed of about 3000 rpm for 5 to 10 minutes.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES09774727T ES2435268T3 (es) | 2008-12-19 | 2009-12-08 | Utilización de polímeros acrílicos neutralizados por litio como agentes dispersantes o de ayuda a la molienda en medio acuoso de materiales minerales |
CN200980150972.6A CN102256692B (zh) | 2008-12-19 | 2009-12-08 | 锂中和的丙烯酸类聚合物作为水性介质中矿物材料的分散剂或研磨助剂的应用 |
BRPI0923029A BRPI0923029A2 (pt) | 2008-12-19 | 2009-12-08 | utilização de um homopolímero do ácido acrílico ou de um copolímero do ácido acrílico com um monômero hidrossolúvel |
US13/140,226 US8785536B2 (en) | 2008-12-19 | 2009-12-08 | Use of acrylic polymers neutralized by lithium as dispersing agents or grinding aid agents of mineral materials in an aqueous medium |
EP09774727.3A EP2373407B1 (fr) | 2008-12-19 | 2009-12-08 | Utilisation de polymeres acryliques neutralises par le lithium comme agents dispersants ou d'aide au broyage en milieu aqueux de matieres minerales |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR08/58819 | 2008-12-19 | ||
FR0858819A FR2940141B1 (fr) | 2008-12-19 | 2008-12-19 | Utilisation de polymeres acryliques neutralises par le lithium comme agents dispersants ou d'aide au broyage en milieu aqueux de matieres minerales |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010070407A1 true WO2010070407A1 (fr) | 2010-06-24 |
Family
ID=40941305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2009/007671 WO2010070407A1 (fr) | 2008-12-19 | 2009-12-08 | Utilisation de polymeres acryliques neutralises par le lithium comme agents dispersants ou d'aide au broyage en milieu aqueux de matieres minerales |
Country Status (9)
Country | Link |
---|---|
US (1) | US8785536B2 (fr) |
EP (1) | EP2373407B1 (fr) |
KR (1) | KR20110104025A (fr) |
CN (2) | CN102256692B (fr) |
BR (1) | BRPI0923029A2 (fr) |
CL (1) | CL2011001461A1 (fr) |
ES (1) | ES2435268T3 (fr) |
FR (1) | FR2940141B1 (fr) |
WO (1) | WO2010070407A1 (fr) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101857657A (zh) * | 2010-06-29 | 2010-10-13 | 上海东升新材料有限公司 | 抗盐性碳酸钙分散剂及其制备方法 |
CN101864014A (zh) * | 2010-06-29 | 2010-10-20 | 上海东升新材料有限公司 | 碳酸钙高效分散剂的制备方法 |
CN102050903A (zh) * | 2010-09-29 | 2011-05-11 | 上海东升新材料有限公司 | 碳酸钙高效分散剂的制备方法及应用 |
WO2013045378A1 (fr) * | 2011-09-28 | 2013-04-04 | Unilever Plc | Copolymères de vinyle de suspension de faible viscosité |
DE102012009320A1 (de) | 2012-05-05 | 2013-11-07 | Bk Giulini Gmbh | Verwendung von Lithiumpolyacrylat alsDispergiermittel |
US20150210559A1 (en) * | 2011-06-21 | 2015-07-30 | Mathieu Skrzypczak | Process for the production of precipitated calcium carbonate, precipitated calcium carbonate and uses thereof |
US9102772B2 (en) | 2011-09-28 | 2015-08-11 | Conopco, Inc. | Thickening vinyl copolymers |
US9127102B2 (en) | 2011-09-28 | 2015-09-08 | Conopco, Inc. | Thickening vinyl copolymers |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2194103A1 (fr) * | 2008-12-04 | 2010-06-09 | Omya Development Ag | Procédé de fabrication de matériaux à base de carbonate de calcium dotés de surfaces de particules à propriétés d'adsorption améliorées |
SI2455429T1 (sl) | 2010-11-19 | 2013-12-31 | Omya International Ag | Postopek za pripravo vodne suspenzije mineralnih snovi z uporabo aminov, kombiniranih z vinil karboksilnimi polimeri |
FR2967593B1 (fr) | 2010-11-19 | 2012-12-28 | Coatex Sas | Utilisation d'amines en combinaison avec des polymeres acryliques dans la fabrication de suspensions aqueuses de matieres minerales |
WO2012092986A1 (fr) | 2011-01-07 | 2012-07-12 | Omya Development Ag | Procédé de blanchiment de la surface d'une boue minérale à base d'eau |
GB201505320D0 (en) | 2015-03-27 | 2015-05-13 | Imerys Minerals Ltd | Mineral slurries |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
EP0499267A2 (fr) | 1991-02-14 | 1992-08-19 | Plüss-Staufer AG | Procédé et installation pour le fractionnement industriel de polymères |
FR2683536A1 (fr) | 1991-11-12 | 1993-05-14 | Coatex Sa | Agent de broyage et/ou de dispersion a base de polymeres et/ou copolymeres neutralises en partie par du magnesium pour suspensions aqueuses de materiaux mineraux en vue d'applications pigmentaires. |
FR2683537A1 (fr) | 1991-11-12 | 1993-05-14 | Coatex Sa | Agent de broyage et/ou de dispersion a base de polymeres et/ou copolymeres neutralises en partie par du magnesium pour suspensions aqueuses de materiaux mineraux en vue d'applications pigmentaires. |
FR2683538A1 (fr) | 1991-11-12 | 1993-05-14 | Coatex Sa | Procede de broyage en suspension aqueuse en presence d'un agent de broyage neutralise en partie par du magnesium. |
FR2683539A1 (fr) | 1991-11-12 | 1993-05-14 | Coatex Sa | Procede de broyage en suspension aqueuse en presence d'un agent de broyage neutralise en partie par du magnesium. |
EP0850685A2 (fr) | 1996-12-27 | 1998-07-01 | Ecc International Limited | Suspensions aqueuses dispersées |
FR2802830A1 (fr) | 1999-12-27 | 2001-06-29 | Coatex Sa | Utilisation de polymeres hydrosolubles comme agent de dispersion de suspension aqueuse de carbonate de calcium suspensions aqueuses obtenues et leurs utilisations |
FR2818165A1 (fr) | 2000-12-20 | 2002-06-21 | Coatex Sas | Agent d'aide au broyage de materiaux mineraux en suspension aqueuse. suspensions aqueuses obtenues et leurs utilisations |
EP1377615A1 (fr) | 2001-03-02 | 2004-01-07 | Coatex S.A.S. | Procede de polymerisation radicalaire controlee de l'acide acrylique et de ses sels, les polymeres de faible polydispersite obtenus, et leurs applications |
EP1529065A2 (fr) | 2002-07-26 | 2005-05-11 | Coatex S.A.S. | Procede de polymerisation radicalaire controlee de l'acide acrylique et de ses sels, les polymeres obtenus, et leurs applications |
FR2894846A1 (fr) | 2005-12-20 | 2007-06-22 | Coatex Sas | Utilisation de dispersants pour concentrer des matieres minerales dans l'eau, dispersions obtenues et leurs utilisations. |
FR2903618A1 (fr) | 2006-07-12 | 2008-01-18 | Coatex Sas | Agent de dispersion et/ou d'aide au broyage pour dispersion et suspension aqueuse de matieres minerales, dispersion et suspension obtenues et leurs utilisations. |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5424259A (en) * | 1994-03-04 | 1995-06-13 | Thiele Kaolin Company | High solids slurries of structured kaolin clay materials having improved high shear rheology and process for the manufacture thereof |
FR2798132B1 (fr) * | 1999-09-03 | 2001-10-12 | Ceca Sa | Procede pour l'obtention de resines polyamidoamine- epichlorhydrine propres a la fabrication de papiers resistants humides a faible teneur en monochloro-3- propanediol-1,2 |
FR2885906A1 (fr) * | 2005-05-20 | 2006-11-24 | Coatex Soc Par Actions Simplif | Utilisation de polymeres hydrosolubles obtenus par polymerisation radicalaire controlee comme agent ameliorant l'opacite et/ou la brillance de produits secs les contenant |
US8980804B2 (en) * | 2006-07-28 | 2015-03-17 | Afton Chemical Corporation | Alkyl acrylate copolymer dispersants and uses thereof |
-
2008
- 2008-12-19 FR FR0858819A patent/FR2940141B1/fr not_active Expired - Fee Related
-
2009
- 2009-12-08 CN CN200980150972.6A patent/CN102256692B/zh not_active Expired - Fee Related
- 2009-12-08 EP EP09774727.3A patent/EP2373407B1/fr active Active
- 2009-12-08 KR KR1020117016029A patent/KR20110104025A/ko active IP Right Grant
- 2009-12-08 BR BRPI0923029A patent/BRPI0923029A2/pt not_active IP Right Cessation
- 2009-12-08 US US13/140,226 patent/US8785536B2/en active Active
- 2009-12-08 ES ES09774727T patent/ES2435268T3/es active Active
- 2009-12-08 CN CN201510379329.8A patent/CN105032280A/zh active Pending
- 2009-12-08 WO PCT/IB2009/007671 patent/WO2010070407A1/fr active Application Filing
-
2011
- 2011-06-16 CL CL2011001461A patent/CL2011001461A1/es unknown
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
EP0499267A2 (fr) | 1991-02-14 | 1992-08-19 | Plüss-Staufer AG | Procédé et installation pour le fractionnement industriel de polymères |
FR2683536A1 (fr) | 1991-11-12 | 1993-05-14 | Coatex Sa | Agent de broyage et/ou de dispersion a base de polymeres et/ou copolymeres neutralises en partie par du magnesium pour suspensions aqueuses de materiaux mineraux en vue d'applications pigmentaires. |
FR2683537A1 (fr) | 1991-11-12 | 1993-05-14 | Coatex Sa | Agent de broyage et/ou de dispersion a base de polymeres et/ou copolymeres neutralises en partie par du magnesium pour suspensions aqueuses de materiaux mineraux en vue d'applications pigmentaires. |
FR2683538A1 (fr) | 1991-11-12 | 1993-05-14 | Coatex Sa | Procede de broyage en suspension aqueuse en presence d'un agent de broyage neutralise en partie par du magnesium. |
FR2683539A1 (fr) | 1991-11-12 | 1993-05-14 | Coatex Sa | Procede de broyage en suspension aqueuse en presence d'un agent de broyage neutralise en partie par du magnesium. |
EP0850685A2 (fr) | 1996-12-27 | 1998-07-01 | Ecc International Limited | Suspensions aqueuses dispersées |
FR2802830A1 (fr) | 1999-12-27 | 2001-06-29 | Coatex Sa | Utilisation de polymeres hydrosolubles comme agent de dispersion de suspension aqueuse de carbonate de calcium suspensions aqueuses obtenues et leurs utilisations |
WO2001048093A1 (fr) * | 1999-12-27 | 2001-07-05 | Coatex S.A.S. | Utilisation de polymeres hydrosolubles comme agent de dispersion de suspension aqueuse de carbonate de calcium, suspensions aqueuses obtenues et leurs utilisations |
FR2818165A1 (fr) | 2000-12-20 | 2002-06-21 | Coatex Sas | Agent d'aide au broyage de materiaux mineraux en suspension aqueuse. suspensions aqueuses obtenues et leurs utilisations |
EP1377615A1 (fr) | 2001-03-02 | 2004-01-07 | Coatex S.A.S. | Procede de polymerisation radicalaire controlee de l'acide acrylique et de ses sels, les polymeres de faible polydispersite obtenus, et leurs applications |
EP1529065A2 (fr) | 2002-07-26 | 2005-05-11 | Coatex S.A.S. | Procede de polymerisation radicalaire controlee de l'acide acrylique et de ses sels, les polymeres obtenus, et leurs applications |
FR2894846A1 (fr) | 2005-12-20 | 2007-06-22 | Coatex Sas | Utilisation de dispersants pour concentrer des matieres minerales dans l'eau, dispersions obtenues et leurs utilisations. |
FR2903618A1 (fr) | 2006-07-12 | 2008-01-18 | Coatex Sas | Agent de dispersion et/ou d'aide au broyage pour dispersion et suspension aqueuse de matieres minerales, dispersion et suspension obtenues et leurs utilisations. |
Non-Patent Citations (2)
Title |
---|
MACROMOLECULES, vol. 36, no. 9, 2003, pages 3066 - 3077 |
POLYMER, vol. 46, no. 19, 2005, pages 8565 - 8572 |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101857657A (zh) * | 2010-06-29 | 2010-10-13 | 上海东升新材料有限公司 | 抗盐性碳酸钙分散剂及其制备方法 |
CN101864014A (zh) * | 2010-06-29 | 2010-10-20 | 上海东升新材料有限公司 | 碳酸钙高效分散剂的制备方法 |
CN101864014B (zh) * | 2010-06-29 | 2012-11-14 | 上海东升新材料有限公司 | 碳酸钙高效分散剂的制备方法 |
CN101857657B (zh) * | 2010-06-29 | 2012-11-14 | 上海东升新材料有限公司 | 抗盐性碳酸钙分散剂及其制备方法 |
CN102050903A (zh) * | 2010-09-29 | 2011-05-11 | 上海东升新材料有限公司 | 碳酸钙高效分散剂的制备方法及应用 |
US20150210559A1 (en) * | 2011-06-21 | 2015-07-30 | Mathieu Skrzypczak | Process for the production of precipitated calcium carbonate, precipitated calcium carbonate and uses thereof |
US9371241B2 (en) * | 2011-06-21 | 2016-06-21 | Omya International Ag | Process for the production of precipitated calcium carbonate, precipitated calcium carbonate and uses thereof |
CN103827153A (zh) * | 2011-09-28 | 2014-05-28 | 荷兰联合利华有限公司 | 低粘度悬浮乙烯基共聚物 |
US9090724B2 (en) | 2011-09-28 | 2015-07-28 | Conopco, Inc. | Low viscosity suspending vinyl copolymers |
WO2013045378A1 (fr) * | 2011-09-28 | 2013-04-04 | Unilever Plc | Copolymères de vinyle de suspension de faible viscosité |
US9102772B2 (en) | 2011-09-28 | 2015-08-11 | Conopco, Inc. | Thickening vinyl copolymers |
US9127102B2 (en) | 2011-09-28 | 2015-09-08 | Conopco, Inc. | Thickening vinyl copolymers |
CN103827153B (zh) * | 2011-09-28 | 2016-04-20 | 荷兰联合利华有限公司 | 低粘度悬浮乙烯基共聚物 |
EA025210B1 (ru) * | 2011-09-28 | 2016-11-30 | Унилевер Н.В. | Суспендирующие виниловые полимеры низкой вязкости |
DE102012009320A1 (de) | 2012-05-05 | 2013-11-07 | Bk Giulini Gmbh | Verwendung von Lithiumpolyacrylat alsDispergiermittel |
Also Published As
Publication number | Publication date |
---|---|
EP2373407A1 (fr) | 2011-10-12 |
CL2011001461A1 (es) | 2011-11-25 |
ES2435268T3 (es) | 2013-12-17 |
CN105032280A (zh) | 2015-11-11 |
BRPI0923029A2 (pt) | 2015-12-15 |
KR20110104025A (ko) | 2011-09-21 |
CN102256692A (zh) | 2011-11-23 |
US20110263774A1 (en) | 2011-10-27 |
FR2940141B1 (fr) | 2010-12-17 |
US8785536B2 (en) | 2014-07-22 |
EP2373407B1 (fr) | 2013-08-28 |
CN102256692B (zh) | 2015-08-05 |
FR2940141A1 (fr) | 2010-06-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2373407B1 (fr) | Utilisation de polymeres acryliques neutralises par le lithium comme agents dispersants ou d'aide au broyage en milieu aqueux de matieres minerales | |
EP2044159B1 (fr) | Agent de dispersion et/ou d'aide au broyage pour dispersion et suspension aqueuse de matieres minerales, dispersion et suspension obtenues et leurs utilisations | |
CA2427476C (fr) | Agent d'aide au broyage et/ou de dispersion de materiaux en suspension aqueuse, suspensions aqueuses obtenues et leurs utilisations | |
EP1979419B1 (fr) | Utilisation d'agents de co-broyage dans un procede de fabrication de carbonates de calcium naturel et precipite co-broyes, suspensions et pigments secs obtenus et leurs utilisations | |
EP2195388B1 (fr) | Procede de broyage en milieu aqueux de matieres minerales et de liants mettant en oeuvre une emulsion inverse d'un polymere de l'acrylamide avec un monomere acrylique | |
FR2488814A1 (fr) | Agent de broyage pour suspension aqueuse de materiaux mineraux en vue d'applications pigmentaires | |
EP2010611A1 (fr) | Procede de traitement de matieres minerales par des polymeres amphoteres, matieres minerales obtenues, leur utilisation comme agent reducteur de la quantite de colloides dans la fabrication de vapeur | |
EP0542643A1 (fr) | Agent de broyage et/ou de dispersion à base de polymères et/ou copolymères neutralisés en partie par du magnésium pour suspensions aqueuses de matériaux minéraux en vue d'applications pigmentaires | |
WO2005095466A1 (fr) | Derives du trithiocarbonate et leur utilisation comme agents de transfert pour la polymerisation radicalaire controlee de l’ acide acrylique | |
EP2455429B1 (fr) | Procédé de préparation de suspensions aqueuses de matiéres minérales au moyen d'amines en combinaison avec des polymères vinyl-carboxyliques. | |
WO2007072168A1 (fr) | Utilisation de dispersants pour concentrer des matieres minerales dans l'eau, dispersions obtenues et leurs utilisations | |
EP0717051A1 (fr) | Procédé d'obtention d'agents de broyage et/ou de dispersion par séparation physico-chimique, agents obtenus et leurs utilisations | |
EP2321225A1 (fr) | Utilisation d'un polymère acrylique faiblement ionique dans la synthèse de carbonate de calcium précipité | |
FR2683537A1 (fr) | Agent de broyage et/ou de dispersion a base de polymeres et/ou copolymeres neutralises en partie par du magnesium pour suspensions aqueuses de materiaux mineraux en vue d'applications pigmentaires. | |
EP2401305B1 (fr) | Procédé de neutralisation d'un polymère acrylique hydrosoluble par au moins un agent monovalent et au moins un agent divalent, polymères obtenus. | |
EP2010311A2 (fr) | Dispersion aqueuse de carbonate de calcium precipite a partir d'au moins un agent dispersant contenant un compose porteur d'ion fluorure | |
EP2387601A1 (fr) | Utilisation de polymeres acryliques peigne avec des groupes hydrophobes comme agents de couplage dans un procede de broyage de matieres minerales avec des liants | |
FR3029528A1 (fr) | Agents d'aide a la dispersion et/ou au broyage du kaolin en suspension aqueuse, suspensions aqueuses obtenues et leurs utilisations | |
WO2012066204A1 (fr) | Utilisation d'amines en combinaison avec des polymères acryliques dans la fabrication de suspensions aqueuses de matières minérales |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200980150972.6 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09774727 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2011001461 Country of ref document: CL |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009774727 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 20117016029 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13140226 Country of ref document: US |
|
ENP | Entry into the national phase |
Ref document number: PI0923029 Country of ref document: BR Kind code of ref document: A2 Effective date: 20110617 |