CA2208150C - Production de carbonate de calcium precipite a couleur amelioree - Google Patents

Production de carbonate de calcium precipite a couleur amelioree Download PDF

Info

Publication number
CA2208150C
CA2208150C CA 2208150 CA2208150A CA2208150C CA 2208150 C CA2208150 C CA 2208150C CA 2208150 CA2208150 CA 2208150 CA 2208150 A CA2208150 A CA 2208150A CA 2208150 C CA2208150 C CA 2208150C
Authority
CA
Canada
Prior art keywords
solution
carbonate
brightness
salt
calcium carbonate
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 - Fee Related
Application number
CA 2208150
Other languages
English (en)
Other versions
CA2208150A1 (fr
Inventor
Alvin Lee Porter
William Joseph Wilson
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.)
GRAYMONT (NB) Inc
Original Assignee
GRAYMONT (NB) Inc
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 GRAYMONT (NB) Inc filed Critical GRAYMONT (NB) Inc
Priority to CA 2208150 priority Critical patent/CA2208150C/fr
Priority to CA002237960A priority patent/CA2237960A1/fr
Priority to US09/092,493 priority patent/US6132696A/en
Publication of CA2208150A1 publication Critical patent/CA2208150A1/fr
Application granted granted Critical
Publication of CA2208150C publication Critical patent/CA2208150C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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

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)
CA 2208150 1997-06-18 1997-06-18 Production de carbonate de calcium precipite a couleur amelioree Expired - Fee Related CA2208150C (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA 2208150 CA2208150C (fr) 1997-06-18 1997-06-18 Production de carbonate de calcium precipite a couleur amelioree
CA002237960A CA2237960A1 (fr) 1997-06-18 1998-05-19 Production de carbonate de calcium precipite a couleur amelioree, sous forme cristallisee stable
US09/092,493 US6132696A (en) 1997-06-18 1998-06-05 Manufacture of precipitated calcium carbonate of improved color and stable crystalline form

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2208150 CA2208150C (fr) 1997-06-18 1997-06-18 Production de carbonate de calcium precipite a couleur amelioree

Publications (2)

Publication Number Publication Date
CA2208150A1 CA2208150A1 (fr) 1998-12-18
CA2208150C true CA2208150C (fr) 2004-03-23

Family

ID=4160910

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2208150 Expired - Fee Related CA2208150C (fr) 1997-06-18 1997-06-18 Production de carbonate de calcium precipite a couleur amelioree

Country Status (1)

Country Link
CA (1) CA2208150C (fr)

Also Published As

Publication number Publication date
CA2208150A1 (fr) 1998-12-18

Similar Documents

Publication Publication Date Title
CA2203210C (fr) Production de carbonate de calcium precipite
US6132696A (en) Manufacture of precipitated calcium carbonate of improved color and stable crystalline form
TWI545085B (zh) 高純度沉澱碳酸鈣的製造
US7378073B2 (en) Lime treatment
CA2780900C (fr) Production de carbonate de calcium a partir de chaux au moyen d'un compose polyhydroxyle
KR100419122B1 (ko) 탄산칼슘의정제방법
US4100254A (en) Industrial process of preparing magnesia of high purity
US4693872A (en) Process for producing highly pure magnesium hydroxide
US4871519A (en) Method of making magnesium oxide and hydrates thereof
CA2214132A1 (fr) Procede de precipitation de carbonate de calcium
CA2208150C (fr) Production de carbonate de calcium precipite a couleur amelioree
JPS6236021A (ja) ストロンチウム含有量の少ない炭酸カルシウムの製造方法
KR0144702B1 (ko) 탄산칼슘의 제조방법
EP0571047B1 (fr) Procédé de préparation de borates précipités
KR20020090188A (ko) 고백색 수산화알루미늄의 제조방법
JPH0710536A (ja) 酸性アルミニウム塩の製造方法

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20130618