RU97113725A - METHOD FOR JOINT PRODUCTION OF CALCIUM CARBONATE AND SODIUM HYDROXIDE - Google Patents

METHOD FOR JOINT PRODUCTION OF CALCIUM CARBONATE AND SODIUM HYDROXIDE

Info

Publication number
RU97113725A
RU97113725A RU97113725/25A RU97113725A RU97113725A RU 97113725 A RU97113725 A RU 97113725A RU 97113725/25 A RU97113725/25 A RU 97113725/25A RU 97113725 A RU97113725 A RU 97113725A RU 97113725 A RU97113725 A RU 97113725A
Authority
RU
Russia
Prior art keywords
calcium carbonate
sodium hydroxide
calcium
stage
hydroxide
Prior art date
Application number
RU97113725/25A
Other languages
Russian (ru)
Other versions
RU2143398C1 (en
Inventor
Нинан Леон
Криадо Клод
Фейс Франсис
Original Assignee
Солвей (Сосьете Аноним)
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.)
Filing date
Publication date
Priority claimed from FR9500341A external-priority patent/FR2729133A1/en
Application filed by Солвей (Сосьете Аноним) filed Critical Солвей (Сосьете Аноним)
Publication of RU97113725A publication Critical patent/RU97113725A/en
Application granted granted Critical
Publication of RU2143398C1 publication Critical patent/RU2143398C1/en

Links

Claims (6)

1. Способ совместного получения карбоната кальция и гидроксида натрия, включающий следующие стадии (а) - (е), на которых (а) осуществляют реакцию между карбонатом натрия и известковым молоком таким образок, чтобы получить водную среду, содержащую твердый карбонат кальция и гидроксид натрия; (в) из указанной среды выделяют, с одной стороны, раствор гидроксида натрия и, с другой стороны, указанный твердый карбонат кальция; (с) смешивают по меньшей мере одну часть указанного твердого карбоната кальция с достаточным количеством известкового молока таким образом, чтобы получить взвесь карбоната кальция и гидроксида кальция, представляющую весовое соотношение гидроксида кальция и карбоната кальция не менее 0,1; (d) осуществляют контакт указанной взвеси с газом, содержащим СО2, и (е) собирают полученную на стадии (d) водную суспензию карбоната кальция.1. A method for co-production of calcium carbonate and sodium hydroxide, comprising the following stages (a) to (e), in which (a) a reaction is carried out between sodium carbonate and milk of lime in such a way as to obtain an aqueous medium containing solid calcium carbonate and sodium hydroxide ; (c) a sodium hydroxide solution and, on the other hand, said solid calcium carbonate are isolated from said medium; (c) at least one part of said solid calcium carbonate is mixed with a sufficient amount of milk of lime so as to obtain a suspension of calcium carbonate and calcium hydroxide, representing a weight ratio of calcium hydroxide and calcium carbonate of at least 0.1; (d) contacting said suspension with a gas containing CO 2 , and (e) collecting the aqueous suspension of calcium carbonate obtained in step (d). 2. Способ по п. 1, отличающийся тем, весовое соотношение гидроксида кальция и карбоната кальция на стадии (с) равно по меньшей мере 0,2 и не превышает 10. 2. The method according to p. 1, characterized in that the weight ratio of calcium hydroxide and calcium carbonate in stage (C) is at least 0.2 and does not exceed 10. 3. Способ по п. 2, отличающийся тем, что весовое соотношение гидроксида кальция и карбоната кальция на стадии (с) составляет 0,3 - 5. 3. The method according to p. 2, characterized in that the weight ratio of calcium hydroxide and calcium carbonate in stage (C) is 0.3 to 5. 4. Способ по пп. 1-3, отличающийся тем, что общая концентрация карбоната кальция и гидроксида кальция во взвеси на стадии (с) составляет 100 - 600 г/л. 4. The method according to PP. 1-3, characterized in that the total concentration of calcium carbonate and calcium hydroxide in suspension in stage (C) is 100 - 600 g / L. 5. Способ по пп. 1-4, отличающийся тем, что стадию (а) осуществляют при температуре не ниже 100oС.5. The method according to PP. 1-4, characterized in that stage (a) is carried out at a temperature not lower than 100 o C. 6. Способ по пп. 1-5, отличающийся тем, что стадию (d) осуществляют при температуре не выше 85oС.6. The method according to PP. 1-5, characterized in that stage (d) is carried out at a temperature not exceeding 85 o C.
RU97113725A 1995-01-11 1995-12-22 Method of combined preparation of calcium carbonate and sodium hydroxide RU2143398C1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9500341A FR2729133A1 (en) 1995-01-11 1995-01-11 PROCESS FOR COPRODUCTION OF CALCIUM CARBONATE AND SODIUM HYDROXIDE
FR9500341 1995-01-11
PCT/EP1995/005175 WO1996021620A1 (en) 1995-01-11 1995-12-22 Method for coproducing calcium carbonate and sodium hydroxide

Publications (2)

Publication Number Publication Date
RU97113725A true RU97113725A (en) 1999-06-20
RU2143398C1 RU2143398C1 (en) 1999-12-27

Family

ID=9475105

Family Applications (1)

Application Number Title Priority Date Filing Date
RU97113725A RU2143398C1 (en) 1995-01-11 1995-12-22 Method of combined preparation of calcium carbonate and sodium hydroxide

Country Status (13)

Country Link
US (1) US5993772A (en)
EP (1) EP0802883B1 (en)
JP (1) JP3860834B2 (en)
KR (1) KR100404970B1 (en)
AT (1) ATE178870T1 (en)
AU (1) AU4347896A (en)
BR (1) BR9510143A (en)
CA (1) CA2209343C (en)
DE (1) DE69509132T2 (en)
FI (1) FI114908B (en)
FR (1) FR2729133A1 (en)
RU (1) RU2143398C1 (en)
WO (1) WO1996021620A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3484425B2 (en) * 2001-03-14 2004-01-06 花王株式会社 Toothpaste
US6994839B2 (en) * 2001-08-15 2006-02-07 Ovonic Battery Company, Inc. Carbonate recycling in a hydrogen producing reaction
US20040213705A1 (en) * 2003-04-23 2004-10-28 Blencoe James G. Carbonation of metal silicates for long-term CO2 sequestration
US20060182576A1 (en) * 2005-01-31 2006-08-17 Foster Raymond K Clean out apparatus for reciprocating slat conveyor
KR101017669B1 (en) 2008-08-29 2011-02-25 주식회사 삼광 Method Of Producing Highly Yielding And Pure Sodium Hydroxide Solution Using Causticizing Method Of Sodium Carbonate
AU2009356416B2 (en) * 2009-12-09 2014-11-20 Mohammed Olfi Using the solid waste-quicklime membrane SWQM process for the production of sodium hydroxide
CN104556183B (en) * 2013-10-17 2016-08-31 中国制浆造纸研究院 The technique that the straw pulp green liquor causticizing improved prepares white mud calcium carbonate filler
CA3138369C (en) * 2019-04-29 2022-07-05 Fpinnovations Process to recover alkali from a metal oxide/hydroxide containing material
CN115044001A (en) * 2022-06-20 2022-09-13 安徽进化硅纳米材料科技有限公司 Method for producing water-soluble phenolic resin and co-producing aqueous calcium carbonate suspension by using white carbon black wastewater

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1188505A (en) * 1915-12-13 1916-06-27 Ind Chemical Company Calcium-carbonate manufacture.
US1862176A (en) * 1929-06-12 1932-06-07 Pure Calcium Products Company Method of making by-product whiting
US2062255A (en) * 1932-08-12 1936-11-24 Raffold Process Corp Pigment manufacture
US2538802A (en) * 1947-05-03 1951-01-23 Ecusta Paper Corp Method of manufacturing calcium carbonate
FR1300007A (en) * 1961-09-11 1962-07-27 Kaiser Aluminium Chem Corp Process for manufacturing the aragonite crystalline form of calcium carbonate
EP0413385A1 (en) * 1989-08-17 1991-02-20 Solvay Process for manufacturing a sodium hydroxide caustic solution
US5364610A (en) * 1993-06-15 1994-11-15 P. H. Glatfelter Company Process for preparation of high opacity precipitated calcium carbonate by reacting sodium carbonate with calcium hydroxide

Similar Documents

Publication Publication Date Title
CA2066655A1 (en) Precipitated calcium carbonate
EA199900980A1 (en) IMPROVED WAYS TO PREPARE ACTIVATED PROTEIN C
CA2171408A1 (en) Recovery of highly fluorinated carboxylic acids from the gas phase
RU97113725A (en) METHOD FOR JOINT PRODUCTION OF CALCIUM CARBONATE AND SODIUM HYDROXIDE
MY111428A (en) Titanium dioxide slurries
AU4213896A (en) Process for purifying water
RU99104514A (en) REGENERATION OF HIGH-FORTED CARBONIC ACIDS FROM THE GAS PHASE
PT86400A (en) Process for preparing aqueous solutions containing a mixture of hysozyme hydrochloride and dipotassium glycyrrhizate
ES2066010T3 (en) SEPARATION PROCEDURE FOR CETO-2-L-GULONIC ACID FROM A FERMENTATION MUST.
SU1181990A1 (en) Method of stabilizing solutions of hypochlorites of alkali and alkaline-earth metals
RU97110639A (en) METHOD FOR OBTAINING COMPLEX FERTILIZER
SU717129A2 (en) Method of producing mixture of aminoacids and lowest peptides
RU95104748A (en) METHOD FOR CLEANING GASES FROM CHLORINE AND CHLORIDE HYDROGEN
RU95118294A (en) METHOD FOR ISOLATING CEFACLOR FROM A REACTIVE MIXTURE OF ENZYMATIC ACYLATION
RU95115643A (en) METHOD FOR PRODUCING A DRYER
RU99103689A (en) METHOD FOR OBTAINING 3-HYDROXYMETHILTSEFALOSPORINS
RU96100384A (en) METHOD FOR PRODUCING A HYDROGEL GENERATOR FROM CHITOZAN
SU709141A1 (en) Method of purifying gases from chlorine
RU98119607A (en) METHOD FOR SEPARATE DETERMINATION IN WATER OF β-CHLOROVINYLDICHLORARSIN AT THE LEVEL OF MAC AND β-CHLORINVINYLARSONIC ACID
RU97116404A (en) METHOD FOR PRODUCING HINF I RESTRUCTION ENDONUCLEASE
RU92005333A (en) METHOD FOR CLEANING GAS FROM SULFUR DIOXIDE
KR850003895A (en) How to separate levamisol from tetramisol
SU1302490A1 (en) METHOD OF OBTAINING PHOSPHOLIPASE A OUT OF SEA STAR
Shkondin et al. Computerized diagnosis of coniotuberculosis.; Kompyuternaya diagnostika koniotuberkuleza.
Khvorostenko et al. Influence of some prognostic factors on the remote results of stomach cancer combined treatment.; Vpliv deyakikh prognostichnikh faktoryiv na vyiddalenyi rezultati kombyinovanogo lyikuvannya khvorikh na rak shlunku.