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GB273666A - Process for the production of chromates - Google Patents

Process for the production of chromates

Info

Publication number
GB273666A
GB273666A GB1277227A GB1277227A GB273666A GB 273666 A GB273666 A GB 273666A GB 1277227 A GB1277227 A GB 1277227A GB 1277227 A GB1277227 A GB 1277227A GB 273666 A GB273666 A GB 273666A
Authority
GB
United Kingdom
Prior art keywords
alkali
chromates
aluminates
precipitated
alumina
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
GB1277227A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB1277227A priority Critical patent/GB273666A/en
Publication of GB273666A publication Critical patent/GB273666A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G37/00—Compounds of chromium
    • C01G37/14—Chromates; Bichromates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)

Abstract

273,666. Mond, A. L., (I. G. Farbenindustrie Akt.-Ges.). May 12, 1927. Sodium or potassium chromates and aluminates; alumina.-Chrome ore is heated with bauxite or other aluminiferous materials in the presence of alkali carbonates or mixtures forming such carbonates at decomposition temperature, so that on lixiviating the product, a solution of chromates and aluminates is obtained. Caustic alkali lye, particularly potash lye, may replace the alkali carbonate. Lime may be added. Alumina may be precipitated after removal of silicic acid by carbon dioxide, and the soda later crystallised, leaving the alkali chromate solution. Silica is separated as sodium aluminium silicate, which is precipitated more readily by boiling under increased pressure.
GB1277227A 1927-06-30 1927-06-30 Process for the production of chromates Expired GB273666A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1277227A GB273666A (en) 1927-06-30 1927-06-30 Process for the production of chromates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1277227A GB273666A (en) 1927-06-30 1927-06-30 Process for the production of chromates

Publications (1)

Publication Number Publication Date
GB273666A true GB273666A (en) 1928-01-12

Family

ID=10010844

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1277227A Expired GB273666A (en) 1927-06-30 1927-06-30 Process for the production of chromates

Country Status (1)

Country Link
GB (1) GB273666A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2341658A1 (en) * 1976-02-21 1977-09-16 Bayer Ag PERFECTED PROCESS FOR ATTACKING CHROME MINERALS
US4173618A (en) * 1976-10-12 1979-11-06 Allied Chemical Corporation Process for removal of alumina from aqueous alkali metal chromate solutions

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2341658A1 (en) * 1976-02-21 1977-09-16 Bayer Ag PERFECTED PROCESS FOR ATTACKING CHROME MINERALS
US4173618A (en) * 1976-10-12 1979-11-06 Allied Chemical Corporation Process for removal of alumina from aqueous alkali metal chromate solutions

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