GB343691A - An improved process for the production of potassium sulphate and soda - Google Patents

An improved process for the production of potassium sulphate and soda

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Publication number
GB343691A
GB343691A GB1436/30A GB143630A GB343691A GB 343691 A GB343691 A GB 343691A GB 1436/30 A GB1436/30 A GB 1436/30A GB 143630 A GB143630 A GB 143630A GB 343691 A GB343691 A GB 343691A
Authority
GB
United Kingdom
Prior art keywords
sulphate
strontium
chloride
calcium
potassium
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
GB1436/30A
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.)
CHEMIEVERFAHREN GES MIT BESCHR
Original Assignee
CHEMIEVERFAHREN GES MIT BESCHR
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 CHEMIEVERFAHREN GES MIT BESCHR filed Critical CHEMIEVERFAHREN GES MIT BESCHR
Publication of GB343691A publication Critical patent/GB343691A/en
Expired legal-status Critical Current

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  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Sodium bicarbonate mother liquor, containing also ammonium carbonate or bicarbonate and chloride, and unconverted sodium chloride, is treated with calcium or strontium sulphate to produce ammonium sulphate and insoluble calcium or strontium carbonate which is separated. Crude sylvinite and ammonia are introduced into the lye, cooled meanwhile to cause the deposit of a mixture of potassium chloride and glaserite, 3K2SO4, Na2 SO4, which on treatment with water reacts to give sodium chloride, and potassium sulphate which is separated. The mother liquor, after removal of the free ammonia, and cooling to separate part of its ammonium chloride, is used for the production of sodium bicarbonate by the Solvay process, the mother liquor of which, at a temperature of about 30-40 DEG C., is treated with calcium or strontium sulphate as above. The carbon dioxide liberated is used in the process. The potassium sulphate obtained may be used, together with nitric acid, for decomposing crude phosphate in known manner, the calcium sulphate formed being used in the above process, or it may be treated with strontia to give potassium hydroxide solution, and strontium sulphate which is used in the process, strontium carbonate formed being converted into oxide again.
GB1436/30A 1929-03-05 1930-01-15 An improved process for the production of potassium sulphate and soda Expired GB343691A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE343691X 1929-03-05

Publications (1)

Publication Number Publication Date
GB343691A true GB343691A (en) 1931-02-26

Family

ID=6247405

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1436/30A Expired GB343691A (en) 1929-03-05 1930-01-15 An improved process for the production of potassium sulphate and soda

Country Status (1)

Country Link
GB (1) GB343691A (en)

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