GB1049815A - A process for the production of crystalline calcium carbonate of vaterite type - Google Patents

A process for the production of crystalline calcium carbonate of vaterite type

Info

Publication number
GB1049815A
GB1049815A GB2805864A GB2805864A GB1049815A GB 1049815 A GB1049815 A GB 1049815A GB 2805864 A GB2805864 A GB 2805864A GB 2805864 A GB2805864 A GB 2805864A GB 1049815 A GB1049815 A GB 1049815A
Authority
GB
United Kingdom
Prior art keywords
gaseous
production
calcium carbonate
vaterite type
crystalline calcium
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB2805864A
Inventor
Eizo Yasui
Shichiro Shoda
Hiroshi Suzuki
Hiroshi Yamada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toagosei Co Ltd
Original Assignee
Toagosei Co Ltd
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
Application filed by Toagosei Co Ltd filed Critical Toagosei Co Ltd
Publication of GB1049815A publication Critical patent/GB1049815A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/18—Carbonates
    • C01F11/181—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by control of the carbonation conditions
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

Crystalline CaCO3 of the vaterite type is prepared by reacting gaseous CO2 with an aqueous solution of CaCl2 which has been made alkaline to a pH of higher than 8 by addition of NH4OH, while vigorously agitating the solution, maintaining the pH of higher than 8, if necessary by further addition of NH4OH, and maintaining a temperature of not higher than 20 DEG C. Gaseous CO2 diluted with an inert gas, e.g. nitrogen, may be used under elevated pressure. Crystals with a grain size of up to 5 microns are obtained. In a comparative example, gaseous CO2 is replaced by aqueous solutions of ammonium and sodium carbonates.
GB2805864A 1964-07-09 1964-07-08 A process for the production of crystalline calcium carbonate of vaterite type Expired GB1049815A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET0026541 1964-07-09

Publications (1)

Publication Number Publication Date
GB1049815A true GB1049815A (en) 1966-11-30

Family

ID=7552848

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2805864A Expired GB1049815A (en) 1964-07-09 1964-07-08 A process for the production of crystalline calcium carbonate of vaterite type

Country Status (2)

Country Link
DE (1) DE1467287B2 (en)
GB (1) GB1049815A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0558275A1 (en) * 1992-02-26 1993-09-01 Pretoria Portland Cement Company Limited Production of purified calcium carbonate
CN111778547A (en) * 2019-04-04 2020-10-16 西南科技大学 Preparation method of aragonite type calcium carbonate whisker
CN116495784A (en) * 2023-06-20 2023-07-28 赣州市海龙钨钼有限公司 Method for purifying ammonium paratungstate in ammonium tungstate solution

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH640485A5 (en) * 1979-06-20 1984-01-13 Sulzer Ag METHOD FOR PRODUCING HIGH PURITY MAGNESIUM OXIDE.
DE19603449C2 (en) * 1996-01-31 1998-03-19 Papiertechnische Stiftung Process for the production of calcium carbonate from calcium-containing combustion residues of residues from paper production

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0558275A1 (en) * 1992-02-26 1993-09-01 Pretoria Portland Cement Company Limited Production of purified calcium carbonate
US5376343A (en) * 1992-02-26 1994-12-27 Pretoria Portland Cement Company Limited Production of purified calcium carbonate
CN111778547A (en) * 2019-04-04 2020-10-16 西南科技大学 Preparation method of aragonite type calcium carbonate whisker
CN116495784A (en) * 2023-06-20 2023-07-28 赣州市海龙钨钼有限公司 Method for purifying ammonium paratungstate in ammonium tungstate solution
CN116495784B (en) * 2023-06-20 2023-09-15 赣州市海龙钨钼有限公司 Method for purifying ammonium paratungstate in ammonium tungstate solution

Also Published As

Publication number Publication date
DE1467287B2 (en) 1972-02-10
DE1467287A1 (en) 1969-02-13

Similar Documents

Publication Publication Date Title
GB1281685A (en) Precipitated calcium carbonate
US2606813A (en) Process of producing aqueous solutions of ammonium nitrite
GB1049815A (en) A process for the production of crystalline calcium carbonate of vaterite type
GB1474446A (en) Process for the manufacture of chlorine and sodium carbonate
ES464828A1 (en) Manufacture of chlorine by electrolysis and of sodium carbonate monohydrate
MX160794A (en) IMPROVEMENTS IN THE METHOD OF PRODUCING SODIUM PERSULFATE
GB1111926A (en) Production of ammonium zirconyl carbonate
GB767629A (en) Improved process for the preparation of sodium bicarbonate and ammonium sulphate
GB903345A (en) Process for the manufacture of finely divided calcium carbonate
GB1001882A (en) Process for the production of finely-dispersed calcium carbonate
GB1049464A (en) Production of urea having good storage properties
ES299315A1 (en) Production of sodium carbonate
GB1106392A (en) Process for the preparation of isocyanate-carbonic acid esters
GB1170399A (en) A Process for Preparing 3,5-Dioxo-1-Piperazineacetamide and Nitrilotriacetic Acid Triamide
GB1063628A (en) Production of cyclododecylamine
US1725363A (en) Production of glycerin by fermentation
GB1520698A (en) Production of sodium sulphite
GB1159176A (en) A method of manufacturing Sodium Carbonate
ES392837A1 (en) Process for preparing strontium carbonate
GB1006640A (en) Process for the production of red oxide of mercury
GB903864A (en) Process for the preparation of thiourea
GB275459A (en) Process for the production of solid ammonium carbonate from its components
GB1245550A (en) Cyclic process for the manufacture of tartaric acid
GB1140644A (en) A process for the production of barium hydroxide
GB606456A (en) Improvements in the production of sodium bicarbonate and ammonium chloride