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GB405391A - Improvements in and relating to the treatment of alkaline-earth carbonates - Google Patents

Improvements in and relating to the treatment of alkaline-earth carbonates

Info

Publication number
GB405391A
GB405391A GB2665332A GB2665332A GB405391A GB 405391 A GB405391 A GB 405391A GB 2665332 A GB2665332 A GB 2665332A GB 2665332 A GB2665332 A GB 2665332A GB 405391 A GB405391 A GB 405391A
Authority
GB
United Kingdom
Prior art keywords
carbonate
alkaline
gum
dispersion
barium
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
GB2665332A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2665332A priority Critical patent/GB405391A/en
Publication of GB405391A publication Critical patent/GB405391A/en
Expired 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
    • C01F11/185—After-treatment, e.g. grinding, purification, conversion of crystal morphology

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)

Abstract

Calcium, strontium, barium, and magnesium carbonates are purified or graded by dispersing the finely subdivided carbonate with a dilute aqueous dispersion of a gum, such as gum arabic or gum tragacanth, separating undeflocculated material, and recovering the carbonate from the suspension, as by film-drying, filtration, or flocculation by a neutral flocculating agent such as gelatine or glue. A carbonate on the alkaline side of neutrality may be obtained by using a gum dispersion containing a small proportion of an alkaline reagent such as an alkali hydrate, carbonate, or silicate. The presence of alkali silicate also assists the dispersion of difficulty suspensible carbonates such as certain native magnesites or native barium carbonate. Numerous examples are given, and in the Provisional Specification the effect of the presence of alum in the dispersion is exemplified. The products may be used as a base in paints, printing inks, or in the striking of colours, in leather dressing, in medicine, and in the manufacture of rubber; in the latter case the alkaline product combines the effects of a reinforcing agent and a filling material, an example showing the reinforcing properties of "dispersed whiting" being furnished.ALSO:Calcium, strontium, barium, or magnesium carbonate which has been purified or graded by dispersion with a dilute aqueous suspension of a gum and separation from undeflocculated matter by film-drying, filtration, or flocculation by gelatine or glue, is used in rubber mixes. A carbonate on the alkaline side of neutrality is obtained by using a gum dispersion containing a small proportion of an alkaline agent such as an alkali hydrate, carbonate, or silicate. The alkaline product combines the effects of a reinforcing agent and a filling material, an example showing the reinforcing properties of "dispersed whiting" being furnished.
GB2665332A 1932-09-26 1932-09-26 Improvements in and relating to the treatment of alkaline-earth carbonates Expired GB405391A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2665332A GB405391A (en) 1932-09-26 1932-09-26 Improvements in and relating to the treatment of alkaline-earth carbonates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2665332A GB405391A (en) 1932-09-26 1932-09-26 Improvements in and relating to the treatment of alkaline-earth carbonates

Publications (1)

Publication Number Publication Date
GB405391A true GB405391A (en) 1934-02-08

Family

ID=10247057

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2665332A Expired GB405391A (en) 1932-09-26 1932-09-26 Improvements in and relating to the treatment of alkaline-earth carbonates

Country Status (1)

Country Link
GB (1) GB405391A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3245819A (en) * 1962-07-30 1966-04-12 Wyandotte Chemicals Corp Stabilization of calcium carbonate slurries
US3322683A (en) * 1961-11-02 1967-05-30 Chemical Products Corp Aqueous barium carbonate dispersions, process for their production, and dry pre-mix

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3322683A (en) * 1961-11-02 1967-05-30 Chemical Products Corp Aqueous barium carbonate dispersions, process for their production, and dry pre-mix
US3245819A (en) * 1962-07-30 1966-04-12 Wyandotte Chemicals Corp Stabilization of calcium carbonate slurries

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