RU2002114865A - The method of obtaining coarse chemically precipitated calcium carbonate with a lamellar particle shape - Google Patents

The method of obtaining coarse chemically precipitated calcium carbonate with a lamellar particle shape

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Publication number
RU2002114865A
RU2002114865A RU2002114865/15A RU2002114865A RU2002114865A RU 2002114865 A RU2002114865 A RU 2002114865A RU 2002114865/15 A RU2002114865/15 A RU 2002114865/15A RU 2002114865 A RU2002114865 A RU 2002114865A RU 2002114865 A RU2002114865 A RU 2002114865A
Authority
RU
Russia
Prior art keywords
carbonate
ions
particle shape
precipitated calcium
calcium carbonate
Prior art date
Application number
RU2002114865/15A
Other languages
Russian (ru)
Other versions
RU2246445C2 (en
Inventor
Владимир Зотович Пойлов
Аси Рифовна Кобелева
Асия Рифовна Кобелева
Максим Владимирович Тимаков
Original Assignee
Владимир Зотович Пойлов
Аси Рифовна Кобелева
Асия Рифовна Кобелева
Максим Владимирович Тимаков
Priority date (The priority date 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 date listed.)
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Application filed by Владимир Зотович Пойлов, Аси Рифовна Кобелева, Асия Рифовна Кобелева, Максим Владимирович Тимаков filed Critical Владимир Зотович Пойлов
Priority to RU2002114865/15A priority Critical patent/RU2246445C2/en
Publication of RU2002114865A publication Critical patent/RU2002114865A/en
Application granted granted Critical
Publication of RU2246445C2 publication Critical patent/RU2246445C2/en

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  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Claims (4)

1. Способ получения крупнодисперсного химически-осажденного карбоната кальция с пластинчатой 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 карбонат-ионов.1. The method of obtaining coarse chemically precipitated calcium carbonate with a plate-like particle shape, comprising synthesizing a precipitate by simultaneously feeding a reactant containing calcium ions and a carbonizing reagent into a reactive stirred mixture, separating the precipitate from the solution and drying the product, characterized in that in the synthesis of an aqueous solution of calcium chloride is used as a reagent containing calcium ions, and an aqueous solution of sodium carbonate is used as a carbonizing reagent, and during the synthesis under keep the flow of calcium chloride and sodium carbonate constant, maintain a constant excess of carbonate ions. 2. Способ по п.1, отличающийся тем, что величину потока карбоната натрия поддерживают не более 100 кг/м3час.2. The method according to claim 1, characterized in that the flow rate of sodium carbonate is supported by not more than 100 kg / m 3 hour. 3. Способ по п.1, отличающийся тем, что избыток карбонат-ионов обеспечивают за счет поддержания массового соотношения между карбонат-ионами и ионами кальция в процессе синтеза не ниже 2,0.3. The method according to claim 1, characterized in that the excess of carbonate ions is provided by maintaining the mass ratio between carbonate ions and calcium ions in the synthesis process is not lower than 2.0. 4. Способ по п.1, отличающийся тем, что температуру процесса синтеза поддерживают в интервале 60-70°С.4. The method according to claim 1, characterized in that the temperature of the synthesis process is maintained in the range of 60-70 ° C.
RU2002114865/15A 2002-06-05 2002-06-05 Method of producing coarse chemically precipitated calcium carbonate with plate shape of particles RU2246445C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2002114865/15A RU2246445C2 (en) 2002-06-05 2002-06-05 Method of producing coarse chemically precipitated calcium carbonate with plate shape of particles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2002114865/15A RU2246445C2 (en) 2002-06-05 2002-06-05 Method of producing coarse chemically precipitated calcium carbonate with plate shape of particles

Publications (2)

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RU2002114865A true RU2002114865A (en) 2004-01-27
RU2246445C2 RU2246445C2 (en) 2005-02-20

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RU2002114865/15A RU2246445C2 (en) 2002-06-05 2002-06-05 Method of producing coarse chemically precipitated calcium carbonate with plate shape of particles

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101935866B (en) * 2010-09-16 2012-01-25 河南城建学院 Method for preparing flaky calcite calcium carbonate crystal
DE102012104773A1 (en) 2012-06-01 2013-12-05 Delfortgroup Ag Cigarette paper with platelet-shaped filler

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RU2246445C2 (en) 2005-02-20

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Effective date: 20040606