RU2013118394A - METHOD FOR PRODUCING PURE CALCIUM CARBONATE - Google Patents
METHOD FOR PRODUCING PURE CALCIUM CARBONATE Download PDFInfo
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- RU2013118394A RU2013118394A RU2013118394/05A RU2013118394A RU2013118394A RU 2013118394 A RU2013118394 A RU 2013118394A RU 2013118394/05 A RU2013118394/05 A RU 2013118394/05A RU 2013118394 A RU2013118394 A RU 2013118394A RU 2013118394 A RU2013118394 A RU 2013118394A
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- RU
- Russia
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- calcium carbonate
- calcium hydroxide
- suspension
- carbon dioxide
- pure calcium
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- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
Способ получения чистого карбоната кальция, включающий карбонизацию газообразным диоксидом углерода водной суспензии гидроксида кальция, последующими фильтрацией и сушкой конечного продукта, отличающийся тем, что диоксид углерода, используемый с 25-30%-ным мольным избытком по отношению к стехиометрическому количеству гидроксида кальция, пропускают через суспензию гидроксида кальция со скоростью 15-20 л/ч, после чего полученную суспензию карбоната кальция фильтруют и сушат при 100-110°С.A method of obtaining pure calcium carbonate, including carbonization by gaseous carbon dioxide of an aqueous suspension of calcium hydroxide, subsequent filtration and drying of the final product, characterized in that the carbon dioxide used with a 25-30% molar excess with respect to the stoichiometric amount of calcium hydroxide is passed through a suspension of calcium hydroxide at a rate of 15-20 l / h, after which the resulting suspension of calcium carbonate is filtered and dried at 100-110 ° C.
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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RU2013118394/05A RU2532189C1 (en) | 2013-04-22 | 2013-04-22 | Method of producing pure calcium carbonate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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RU2013118394/05A RU2532189C1 (en) | 2013-04-22 | 2013-04-22 | Method of producing pure calcium carbonate |
Publications (2)
Publication Number | Publication Date |
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RU2532189C1 RU2532189C1 (en) | 2014-10-27 |
RU2013118394A true RU2013118394A (en) | 2014-10-27 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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RU2013118394/05A RU2532189C1 (en) | 2013-04-22 | 2013-04-22 | Method of producing pure calcium carbonate |
Country Status (1)
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RU (1) | RU2532189C1 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1558874A1 (en) * | 1988-01-28 | 1990-04-23 | Предприятие П/Я А-3732 | Method of obtaining rectified calcium carbonate |
US6251356B1 (en) * | 1999-07-21 | 2001-06-26 | G. R. International, Inc. | High speed manufacturing process for precipitated calcium carbonate employing sequential perssure carbonation |
AU2002316276A1 (en) * | 2002-06-18 | 2003-12-31 | Specialty Minerals (Michigan) Inc. | Process for the production of precipitated calcium carbonates and product produced thereby |
BRPI0411272A (en) * | 2003-06-05 | 2006-08-01 | Okutama Kogyo Co Ltd | precipitated calcium carbonate, method to produce the same and charge to load the paper using the same |
EP1712597A1 (en) * | 2005-04-11 | 2006-10-18 | Omya Development AG | Process for preparing precipitated calcium carbonate pigment, especially for use in inkjet printing pater coatings and precipitated calcium carbonate |
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2013
- 2013-04-22 RU RU2013118394/05A patent/RU2532189C1/en active
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Publication number | Publication date |
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RU2532189C1 (en) | 2014-10-27 |
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