RU2002114866A - METHOD FOR PRODUCING THIN DISPERSED CHEMICAL-DEPOSITED CALCIUM CARBONATE WITH SPHERICAL PARTICLE FORM - Google Patents

METHOD FOR PRODUCING THIN DISPERSED CHEMICAL-DEPOSITED CALCIUM CARBONATE WITH SPHERICAL PARTICLE FORM

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Publication number
RU2002114866A
RU2002114866A RU2002114866/15A RU2002114866A RU2002114866A RU 2002114866 A RU2002114866 A RU 2002114866A RU 2002114866/15 A RU2002114866/15 A RU 2002114866/15A RU 2002114866 A RU2002114866 A RU 2002114866A RU 2002114866 A RU2002114866 A RU 2002114866A
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RU
Russia
Prior art keywords
ions
spherical particle
calcium
modifier
maintained
Prior art date
Application number
RU2002114866/15A
Other languages
Russian (ru)
Other versions
RU2218305C1 (en
Inventor
Владимир Зотович Пойлов
Асия Рифовна Кобелева
Максим Владимирович Тимаков
Original Assignee
Владимир Зотович Пойлов
Асия Рифовна Кобелева
Максим Владимирович Тимаков
Filing date
Publication date
Application filed by Владимир Зотович Пойлов, Асия Рифовна Кобелева, Максим Владимирович Тимаков filed Critical Владимир Зотович Пойлов
Priority to RU2002114866/15A priority Critical patent/RU2218305C1/en
Priority claimed from RU2002114866/15A external-priority patent/RU2218305C1/en
Application granted granted Critical
Publication of RU2218305C1 publication Critical patent/RU2218305C1/en
Publication of RU2002114866A publication Critical patent/RU2002114866A/en

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Claims (6)

1. Способ получения тонкодисперсного химически осажденного карбоната кальция со сферической формой частиц, включающий синтез осадка путем одновременной подачи в реагирующую перемешиваемую смесь реагента, содержащего ионы кальция, и карбонизующего реагента, отделение осадка от раствора и сушку продукта, отличающийся тем, что при синтезе в качестве реагента, содержащего ионы кальция, используют водный раствор хлорида кальция, а в качестве карбонизующего реагента используют водный раствор карбоната натрия, причем в процессе синтеза поддерживают постоянными величину потоков хлорида кальция и карбоната натрия, поддерживают постоянный избыток ионов Са2+ и вводят модификатор.1. A method of obtaining a finely divided chemically precipitated calcium carbonate with a spherical particle shape, comprising synthesizing a precipitate by simultaneously supplying a reactant containing calcium ions and a carbonizing reagent to the reactive stirred mixture, separating the precipitate from the solution and drying the product, characterized in that in the synthesis as a reagent containing calcium ions, an aqueous solution of calcium chloride is used, and an aqueous solution of sodium carbonate is used as a carbonizing reagent, moreover, during the synthesis of The fluxes of calcium chloride and sodium carbonate are kept constant, a constant excess of Ca 2+ ions is maintained, and a modifier is introduced. 2. Способ по п.1, отличающийся тем, что величину потока хлорида кальция поддерживают не менее 1600 кг/м3ч.2. The method according to claim 1, characterized in that the flow rate of calcium chloride is maintained at least 1600 kg / m 3 hours 3. Способ по п.1, отличающийся тем, что избыток ионов Са2+ обеспечивают за счет поддержания массового соотношения между ионами кальция и карбонат-ионами в процессе синтеза не ниже 0,80.3. The method according to claim 1, characterized in that the excess of Ca 2+ ions is ensured by maintaining the mass ratio between calcium ions and carbonate ions in the synthesis process not lower than 0.80. 4. Способ по п.1, отличающийся тем, что температуру процесс синтеза поддерживают в интервале 60-80°С.4. The method according to claim 1, characterized in that the temperature of the synthesis process is maintained in the range of 60-80 ° C. 5. Способ по п.1, отличающийся тем, что в качестве модификатора используют раствор первичного амина, содержащего 17-21 атомов углерода.5. The method according to claim 1, characterized in that a solution of a primary amine containing 17-21 carbon atoms is used as a modifier. 6. Способ по п.5, отличающийся тем, что концентрацию модификатора поддерживают не менее 0,3×10-3%.6. The method according to claim 5, characterized in that the concentration of the modifier support at least 0.3 × 10 -3 %.
RU2002114866/15A 2002-06-05 2002-06-05 Method to produce fine-grained chemically settled calcium carbonate with spherical form of particles RU2218305C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2002114866/15A RU2218305C1 (en) 2002-06-05 2002-06-05 Method to produce fine-grained chemically settled calcium carbonate with spherical form of particles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2002114866/15A RU2218305C1 (en) 2002-06-05 2002-06-05 Method to produce fine-grained chemically settled calcium carbonate with spherical form of particles

Publications (2)

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RU2218305C1 RU2218305C1 (en) 2003-12-10
RU2002114866A true RU2002114866A (en) 2004-04-20

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8470280B2 (en) * 2007-08-03 2013-06-25 Ahmet Cüneyt Tas Calcium carbonate microtablets and method for the preparation thereof
EP2796412B1 (en) * 2013-04-24 2021-05-12 Università Del Salento - Dipartimento Di Ingegneria Dell'Innovazione Synthesis of nano-sized CaCO3 particles by spray dryer
BR112019004499B1 (en) 2016-09-08 2022-07-12 Karl Leibinger Medizintechnik Gmbh & Co. Kg IMPLANT COMPRISING A COMPOSITE POWDER CONTAINING CALCIUM SALT HAVING MICROSTRUCTURED PARTICLES
CN115286028B (en) * 2022-05-12 2023-12-15 四川大学 Preparation method and device for synthesizing high-dispersion nano calcium carbonate without using additive

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