GB445120A - Improvements in the manufacture and production of ammonium sulphate in the form of scales - Google Patents

Improvements in the manufacture and production of ammonium sulphate in the form of scales

Info

Publication number
GB445120A
GB445120A GB2875134A GB2875134A GB445120A GB 445120 A GB445120 A GB 445120A GB 2875134 A GB2875134 A GB 2875134A GB 2875134 A GB2875134 A GB 2875134A GB 445120 A GB445120 A GB 445120A
Authority
GB
United Kingdom
Prior art keywords
ammonium sulphate
solution
aluminium
scales
manufacture
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
GB2875134A
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 GB2875134A priority Critical patent/GB445120A/en
Publication of GB445120A publication Critical patent/GB445120A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/24—Sulfates of ammonium
    • C01C1/248—Preventing coalescing or controlling form or size of the crystals

Abstract

Ammonium sulphate is obtained in the form of flat scale-like hexagonal crystals by crystallizing the salt from its aqueous solutions containing a dissolved salt of aluminium amounting to 0,003 to 0,6 parts per thousand (calculated as Al2O3) of the dissolved ammonium sulphate while maintaining in the solution a pH value of about 5,8 to 7. According to an example, ammonium sulphate is crystallized by evaporating a solution to which aluminium sulphate has been added, and which has a pH of about 6,0--6,8. If necessary, the aluminium content or the hydrogen ion concentration of the solution may be corrected during crystallization. Specifications 330,945 and 330,947, [both in Class 1 (ii)], are referred to.
GB2875134A 1934-10-08 1934-10-08 Improvements in the manufacture and production of ammonium sulphate in the form of scales Expired GB445120A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2875134A GB445120A (en) 1934-10-08 1934-10-08 Improvements in the manufacture and production of ammonium sulphate in the form of scales

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2875134A GB445120A (en) 1934-10-08 1934-10-08 Improvements in the manufacture and production of ammonium sulphate in the form of scales

Publications (1)

Publication Number Publication Date
GB445120A true GB445120A (en) 1936-04-03

Family

ID=10280536

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2875134A Expired GB445120A (en) 1934-10-08 1934-10-08 Improvements in the manufacture and production of ammonium sulphate in the form of scales

Country Status (1)

Country Link
GB (1) GB445120A (en)

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