AR017571A1 - PROCEDURE FOR THE MANUFACTURE OF CALCIUM CARBONATE AND PARTICLES OF CALCIUM CARBONATE AND MAGNESIUM AS GOT - Google Patents

PROCEDURE FOR THE MANUFACTURE OF CALCIUM CARBONATE AND PARTICLES OF CALCIUM CARBONATE AND MAGNESIUM AS GOT

Info

Publication number
AR017571A1
AR017571A1 ARP980105624A AR017571A1 AR 017571 A1 AR017571 A1 AR 017571A1 AR P980105624 A ARP980105624 A AR P980105624A AR 017571 A1 AR017571 A1 AR 017571A1
Authority
AR
Argentina
Prior art keywords
calcium carbonate
calcium
carbonate
particles
magnesium
Prior art date
Application number
Other languages
Spanish (es)
Original Assignee
Lhoist Rech & Dev Sa
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 Lhoist Rech & Dev Sa filed Critical Lhoist Rech & Dev Sa
Publication of AR017571A1 publication Critical patent/AR017571A1/en

Links

Classifications

    • 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
    • C01F11/182—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by an additive other than CaCO3-seeds
    • 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
    • C01F5/00—Compounds of magnesium
    • C01F5/24—Magnesium carbonates
    • 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

Procedimiento de fabricacion de partículas de carbonato de calcio y/o carbonato de calcio y de magnesio, en el cual se trata un medio acuoso de pH básico yque contiene Ca(OH)2 y/o Ca(OH)2-Mg(OH)2 mediante iyenccion del CO2 gaseoso para formar carbonato de calcio y/o carbonato de calcio y de magnesio, y en elcual se recuperan las partículas de carbonato formadas, efectuándose el tratamiento del medio acuoso en presencia de por lo menos un aditivo elegido del grupoconstituido por hidracina, hidroxilamina, sales solubles de hidroxilamina y sus mezclas. Partículas de carbonato de calcio y/o carbonato de calcio y demagnesio así obtenidas.Process for manufacturing particles of calcium carbonate and / or calcium and magnesium carbonate, in which an aqueous medium of basic pH is treated and containing Ca (OH) 2 and / or Ca (OH) 2-Mg (OH) 2 by means of CO2 gas gaseous to form calcium carbonate and / or calcium and magnesium carbonate, and in which the carbonate particles formed are recovered, the treatment of the aqueous medium being carried out in the presence of at least one additive chosen from the group constituted by Hydrazine, hydroxylamine, soluble hydroxylamine salts and mixtures thereof. Calcium carbonate and / or calcium and demagnesium carbonate particles thus obtained.

ARP980105624 1997-11-06 1998-11-06 PROCEDURE FOR THE MANUFACTURE OF CALCIUM CARBONATE AND PARTICLES OF CALCIUM CARBONATE AND MAGNESIUM AS GOT AR017571A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE9700894A BE1011538A4 (en) 1997-11-06 1997-11-06 METHOD FOR MANUFACTURING Calcium Carbonate.

Publications (1)

Publication Number Publication Date
AR017571A1 true AR017571A1 (en) 2001-09-12

Family

ID=3890824

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP980105624 AR017571A1 (en) 1997-11-06 1998-11-06 PROCEDURE FOR THE MANUFACTURE OF CALCIUM CARBONATE AND PARTICLES OF CALCIUM CARBONATE AND MAGNESIUM AS GOT

Country Status (9)

Country Link
EP (1) EP1028916A1 (en)
AR (1) AR017571A1 (en)
AU (1) AU1015099A (en)
BE (1) BE1011538A4 (en)
BR (1) BR9813975A (en)
PL (1) PL340094A1 (en)
SK (1) SK6292000A3 (en)
WO (1) WO1999024361A1 (en)
ZA (1) ZA9810169B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7105139B2 (en) 2002-04-25 2006-09-12 Imerys Pigments, Inc. Stabilization of the viscosity of formamidine sulfinic acid bleached calcium carbonate slurries

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4900533A (en) * 1981-02-24 1990-02-13 English Clays Lovering Pochin & Company Alkaline earth metal carbonates
DE3510695A1 (en) * 1985-03-23 1986-09-25 Hoechst Ag, 6230 Frankfurt METHOD FOR PRODUCING FINE-PARTICLE CALCIUM CARBONATE OF HIGH PURITY AND HIGH WHITE GRADE
CN85103821A (en) * 1985-05-13 1986-11-12 陈学廉 Increase the method for whiteness of low density calcium carbonate
EP0257458A3 (en) * 1986-08-22 1989-03-29 Akira Matsuzaki Scrubbing agent and process for producing the same
RO105941B1 (en) * 1990-04-20 1993-01-30 Centrul Chim Timisoara Preparation process of a calcium carbonate assortment of high purity and fine granulation
BE1003441A5 (en) * 1990-07-24 1992-03-24 Lhoist Rech & Dev Sa PROCESS FOR PRODUCING CALCIUM DERIVATIVES, CALCIUM DERIVATIVES AND USE OF SUCH DERIVATIVES.
CA2090088C (en) * 1992-02-26 1995-07-25 Pierre Marc Fouche Production of purified calcium carbonate
JP3223589B2 (en) * 1992-07-20 2001-10-29 王子製紙株式会社 Method for producing light calcium carbonate

Also Published As

Publication number Publication date
AU1015099A (en) 1999-05-31
EP1028916A1 (en) 2000-08-23
WO1999024361A1 (en) 1999-05-20
BR9813975A (en) 2000-09-26
BE1011538A4 (en) 1999-10-05
ZA9810169B (en) 1999-05-07
SK6292000A3 (en) 2000-12-11
PL340094A1 (en) 2001-01-15

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