GB103696A - Improvements in the Manufacture of Chromates. - Google Patents

Improvements in the Manufacture of Chromates.

Info

Publication number
GB103696A
GB103696A GB192616A GB192616A GB103696A GB 103696 A GB103696 A GB 103696A GB 192616 A GB192616 A GB 192616A GB 192616 A GB192616 A GB 192616A GB 103696 A GB103696 A GB 103696A
Authority
GB
United Kingdom
Prior art keywords
alkali
carbonates
lime
filtrate
caustic
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
GB192616A
Inventor
Gerhard Nicolaas
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 GB192616A priority Critical patent/GB103696A/en
Publication of GB103696A publication Critical patent/GB103696A/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)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

103,696. Vis, G. N. Feb. 9, 1916. Alkali chromates are obtained by treating a chromium ore, such as chromite, with fused caustic soda, with or without sodium carbonate or with a mixture of caustic potash and potassium carbonate at a temperature well below 1000‹C. at atmospheric pressure and with the injection of air or oxygen, the reaction being effected in metal vats or vessels. The carbonates may be mixed with lime, and fusible salts, such as sodium chloride, may be added. The fused mass is treated with water and filtered, the filtrate being then freed from silica, alumina, and carbonates by diluting and boiling with lime. The filtrate is concentrated to separate, first added salts, such as sodium chloride, and then alkali chromate. The caustic alkali remaining, containing a little chromate, is evaporated to dryness and used again. Specification 1046/72 is referred to.
GB192616A 1916-02-09 1916-02-09 Improvements in the Manufacture of Chromates. Expired GB103696A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB192616A GB103696A (en) 1916-02-09 1916-02-09 Improvements in the Manufacture of Chromates.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB192616A GB103696A (en) 1916-02-09 1916-02-09 Improvements in the Manufacture of Chromates.

Publications (1)

Publication Number Publication Date
GB103696A true GB103696A (en) 1917-02-08

Family

ID=32407452

Family Applications (1)

Application Number Title Priority Date Filing Date
GB192616A Expired GB103696A (en) 1916-02-09 1916-02-09 Improvements in the Manufacture of Chromates.

Country Status (1)

Country Link
GB (1) GB103696A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2187929A1 (en) * 1972-06-14 1974-01-18 Ugine Kuhlmann
US3963824A (en) 1972-06-14 1976-06-15 Produits Chimiques Ugine Kuhlmann Process for extracting chromium from chromium ores
US12116716B2 (en) 2018-03-02 2024-10-15 Qingdao Haier Drum Washing Machine Co., Ltd. Spring bearing beam and frame of a laundry treatment apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2187929A1 (en) * 1972-06-14 1974-01-18 Ugine Kuhlmann
US3963824A (en) 1972-06-14 1976-06-15 Produits Chimiques Ugine Kuhlmann Process for extracting chromium from chromium ores
US12116716B2 (en) 2018-03-02 2024-10-15 Qingdao Haier Drum Washing Machine Co., Ltd. Spring bearing beam and frame of a laundry treatment apparatus

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