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
GB31422/25A
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AGfiledCriticalBayer AG
Publication of GB247523ApublicationCriticalpatent/GB247523A/en
Preparation Of Compounds By Using Micro-Organisms
(AREA)
Abstract
247,523. Farbenfabriken vorm. F. Bayer & Co. Feb. 13, 1925, [Convention date]. Alkali hyposulphites and thiosulphates.-In the production of alkali hyposulphite from alkali bisulphite and alkali amalgam, alkali thiosulphate is formed by further redluction, and may be itself further reduced to polythionates, these salts being freely soluble and tending to accumulate in the mother liquor. To avoid this accumulation, which uses up a part of the alkali amalgam, a part of the mother liquor is withdrawn periodically or continuously and is replaced by water or a salt solution such as a solution of sodium chloride, with small addition of bisulphite if desired.
GB31422/25A1925-02-131925-12-12Improved process for the manufacture of alkali hydrosulphites
ExpiredGB247523A
(en)