GB1136450A - Preparation of solid solutions of quinacridone derivatives - Google Patents
Preparation of solid solutions of quinacridone derivativesInfo
- Publication number
- GB1136450A GB1136450A GB5636566A GB5636566A GB1136450A GB 1136450 A GB1136450 A GB 1136450A GB 5636566 A GB5636566 A GB 5636566A GB 5636566 A GB5636566 A GB 5636566A GB 1136450 A GB1136450 A GB 1136450A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- solid solutions
- quinacridone derivatives
- water
- quinacridone
- 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
- C09B48/00—Quinacridones
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1,136,450. Solid solutions of quinacridones. E. I. DU PONT DE NEMOURS & CO. 16 Dec., 1966 [20 Dec., 1965], No. 56365/66. Heading C4P. Quinacridone solid solutions are prepared'by dissolving a mixture of quinacridone derivatives in concentrated sulphuric acid, precipitating the quinacridone derivatives in small particle size by introducing the solution into water under conditions which result in rapid dilution of the acid, and then heating the resultant acid slurry. The dilution step may be carried out by the slow addition of the acid solution to a large volume of water under vigorous agitation, but preferably the acid solution is introduced into water in a zone of extremely high turbulence, for example, through an orifice into the centre of a stream of water flowing under pressure through a constricted tube. The heating step is preferably carried out for about one hour at 75-90‹ C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US51525165A | 1965-12-20 | 1965-12-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1136450A true GB1136450A (en) | 1968-12-11 |
Family
ID=24050584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5636566A Expired GB1136450A (en) | 1965-12-20 | 1966-12-16 | Preparation of solid solutions of quinacridone derivatives |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1619621C3 (en) |
| GB (1) | GB1136450A (en) |
-
1966
- 1966-12-16 GB GB5636566A patent/GB1136450A/en not_active Expired
- 1966-12-20 DE DE19661619621 patent/DE1619621C3/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1619621A1 (en) | 1969-10-23 |
| DE1619621B2 (en) | 1974-07-04 |
| DE1619621C3 (en) | 1975-02-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1188317A (en) | Improvements in the production of Active Clay and Finely Divided Silica | |
| ES229012A1 (en) | Process and apparatus for the manufacture of phosphoric acid | |
| GB1050876A (en) | ||
| GB1136450A (en) | Preparation of solid solutions of quinacridone derivatives | |
| GB1267896A (en) | A process for the removal of solid particles from an aqueous suspension thereof and an apparatus therefor | |
| GB1426170A (en) | Selenium-75 derivatives of steroids | |
| CN104288174A (en) | Controlled-release hydrogen sulfide donor as well as preparation method and application thereof | |
| GB1335478A (en) | Light stable orange pigment based on quinacridone solid solution | |
| GB1202759A (en) | Improvements in or relating to metal powders | |
| GB1018431A (en) | Apparatus for producing foam | |
| GB1336273A (en) | Production of phthalocyanine pigments | |
| GB1201356A (en) | A process for the production of tetra-ammonium-dioxotricarbonate uranate | |
| GB1217188A (en) | Acid digestion of titaniferous materials | |
| GB1343817A (en) | Process for producing coloured nacreous pigments | |
| GB1376560A (en) | Preparation of beta-copper phthalocyanine without milling | |
| GB1187053A (en) | Process for the Separation of a Gas Dissolved in a Liquid. | |
| GB1187534A (en) | Process for preparing 4-Flouro-3-Nitroaniline | |
| GB1183120A (en) | A Process for the Preparation of Lithium Silicate Solutions | |
| GB702952A (en) | Improvements in the manufacture of insecticidal preparations | |
| GB1316371A (en) | Process for the purification of gypsum | |
| GB888188A (en) | Improvements in the preparation of alkali metal dichromate | |
| GB1141245A (en) | Process for preparation of water-insoluble anthraquinone dyes | |
| GB1136750A (en) | Production of quinacridone pigments | |
| GB1149810A (en) | Improvements in or relating to hydroxylammonium acid sulfate compositions | |
| JPS5711971A (en) | Preparation of pyrazinamide |