GB221643A - Improvements in the manufacture and production of halogenated vat colouring matters - Google Patents

Improvements in the manufacture and production of halogenated vat colouring matters

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Publication number
GB221643A
GB221643A GB2334923A GB2334923A GB221643A GB 221643 A GB221643 A GB 221643A GB 2334923 A GB2334923 A GB 2334923A GB 2334923 A GB2334923 A GB 2334923A GB 221643 A GB221643 A GB 221643A
Authority
GB
United Kingdom
Prior art keywords
sulphuric acid
brominated
chlorine
manufacture
production
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
GB2334923A
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik 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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Priority to GB2334923A priority Critical patent/GB221643A/en
Publication of GB221643A publication Critical patent/GB221643A/en
Expired legal-status Critical Current

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Abstract

Chlorbrom-N-dihydro-1 : 2 : 11 : 21-anthraquinoneazines are prepared by chlorinating and brominating the parent hydroazine; when bromination is effected first the operations are carried out in sulphuric acid solution, but when first chlorinating and then brominating the operations may be carried out in any known manner, though it is preferred to brominate in sulphuric acid and to chlorinate either in the same medium or in the dry condition. Halogen carriers may be used. The products are fast to chlorine and insensitive to hard calcareous water. According to examples the hydroazine is (1) chlorinated in sulphuric acid containing a little sodium nitrite and then brominated, (2) agitated with sodium acetate, ferric chloride, and chlorine and then brominated in sulphuric acid monohydrate, (3) brominated in sulphuric acid mith addition of sodium nitrite and then a current of chlorine passed in.
GB2334923A 1923-09-18 1923-09-18 Improvements in the manufacture and production of halogenated vat colouring matters Expired GB221643A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2334923A GB221643A (en) 1923-09-18 1923-09-18 Improvements in the manufacture and production of halogenated vat colouring matters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2334923A GB221643A (en) 1923-09-18 1923-09-18 Improvements in the manufacture and production of halogenated vat colouring matters

Publications (1)

Publication Number Publication Date
GB221643A true GB221643A (en) 1924-09-18

Family

ID=10194208

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2334923A Expired GB221643A (en) 1923-09-18 1923-09-18 Improvements in the manufacture and production of halogenated vat colouring matters

Country Status (1)

Country Link
GB (1) GB221643A (en)

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