GB245584A - Improvements in the manufacture and production of quinizarin - Google Patents
Improvements in the manufacture and production of quinizarinInfo
- Publication number
- GB245584A GB245584A GB3111524A GB3111524A GB245584A GB 245584 A GB245584 A GB 245584A GB 3111524 A GB3111524 A GB 3111524A GB 3111524 A GB3111524 A GB 3111524A GB 245584 A GB245584 A GB 245584A
- Authority
- GB
- United Kingdom
- Prior art keywords
- quinizarin
- manufacture
- production
- ehlorphenal
- sprent
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
- C09B1/02—Hydroxy-anthraquinones; Ethers or esters thereof
- C09B1/06—Preparation from starting materials already containing the anthracene nucleus
- C09B1/08—Dyes containing only OH-groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
245,584. Dodd, H., Sprent, W. C., and United Alkali Co., Ltd. Dec. 29, 1924. Quinizarin is obtained by heating o-ehlorphenal or a mixture of o- and p-chlorphenol at temperatures above 200‹ C. with phthalic anhydride. and boric acid dissolved in sulphuric acid. The product is isolated by pouring the reaction mass into water.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3111524A GB245584A (en) | 1924-12-29 | 1924-12-29 | Improvements in the manufacture and production of quinizarin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3111524A GB245584A (en) | 1924-12-29 | 1924-12-29 | Improvements in the manufacture and production of quinizarin |
Publications (1)
Publication Number | Publication Date |
---|---|
GB245584A true GB245584A (en) | 1926-01-14 |
Family
ID=10318188
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3111524A Expired GB245584A (en) | 1924-12-29 | 1924-12-29 | Improvements in the manufacture and production of quinizarin |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB245584A (en) |
-
1924
- 1924-12-29 GB GB3111524A patent/GB245584A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB245584A (en) | Improvements in the manufacture and production of quinizarin | |
FR642057A (en) | Process for the production of solid carbonic acid | |
SU130506A1 (en) | The method of obtaining 5-hydroxy-1,4-naphthoquinone | |
GB248874A (en) | Improvements in the manufacture and production of anthraquinone derivatives | |
GB277670A (en) | Manufacture of benzanthrone-carboxylic acids | |
GB547580A (en) | Improvements in the manufacture of ion-exchanging materials | |
GB256068A (en) | Improvements in the manufacture and production of hydroxychlor-anthraquinone | |
FR721505A (en) | Process for refining the reaction products of phosphorites with nitric acid, in particular for the manufacture of fertilizers | |
GB355613A (en) | ||
FR583694A (en) | Process for preparing products of varying utility with half-coke | |
GB251644A (en) | Improved manufacture of acid dyestuffs of the rhodamine series | |
GB455526A (en) | Improved bond for silica bricks and the like | |
GB237575A (en) | Method of manufacturing acetic anhydride | |
GB296074A (en) | Process for the manufacture of potassium manganate | |
CA256809A (en) | Manufacture of sulfuric acid by the contact process | |
CA304172A (en) | Production of reactive acid liquors | |
FR717623A (en) | Process for the preparation of esters, mixed esters or ethers-esters of polymeric carbohydrates | |
FR708270A (en) | Production of iodemethanesulfonic acid or its homologues | |
GB278112A (en) | Improvements in and relating to the manufacture of dyestuffs and intermediates | |
GB271602A (en) | Improvements in the manufacture of anthraquinone derivatives | |
GB393316A (en) | Improvements relating to dyestuffs of the anthraquinone series | |
GB176925A (en) | The manufacture of oxy and sulpho oxy derivatives of anthraquinone | |
CA271102A (en) | Concentrated sulphurous anhydride gas | |
GB204528A (en) | Improvements in the manufacture, or production, of para-dichlor-benzene and chlor-anthraquinone | |
FR711515A (en) | Process for the conversion of aliphatic hydrocarbons, mainly methane, into valuable products |