GB208722A - Improved process for the manufacture of perylene - Google Patents

Improved process for the manufacture of perylene

Info

Publication number
GB208722A
GB208722A GB31991/23A GB3199123A GB208722A GB 208722 A GB208722 A GB 208722A GB 31991/23 A GB31991/23 A GB 31991/23A GB 3199123 A GB3199123 A GB 3199123A GB 208722 A GB208722 A GB 208722A
Authority
GB
United Kingdom
Prior art keywords
perylene
phosphorus oxychloride
manufacture
zinc
improved process
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
GB31991/23A
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.)
Kuhlmann SA
Original Assignee
Kuhlmann SA
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 Kuhlmann SA filed Critical Kuhlmann SA
Publication of GB208722A publication Critical patent/GB208722A/en
Expired legal-status Critical Current

Links

Abstract

By heating b -dinapthol with phosphorus oxychloride and zinc, a product is formed which on distillation yields perylene together with other bodies such as dinaphthylene oxide. The reaction may be carried out in vacuo or in a current of inert gas, and a substance such as quick lime may be added. According to the example, a mixture of b -dinaphthol, phosphorus oxychloride and zinc dust is heated to 200 DEG C.; the dry product is distilled in a retort at a temperature of 600 DEG C.; the distillate, on crystallization from toluene, consists of perylene. Specifications 136,564, 165,770, 165,771, 191,363, and 208,721 are referred to. The Specification as open to inspection under Sect. 91 (3) (a) states that any dihydroxy compound of a -dinaphthyl or a derivative thereof may comprise the starting material; this subject-matter does not appear in the Specification as accepted.
GB31991/23A 1922-12-21 1923-12-20 Improved process for the manufacture of perylene Expired GB208722A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR208722X 1922-12-21

Publications (1)

Publication Number Publication Date
GB208722A true GB208722A (en) 1924-06-12

Family

ID=8880607

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31991/23A Expired GB208722A (en) 1922-12-21 1923-12-20 Improved process for the manufacture of perylene

Country Status (1)

Country Link
GB (1) GB208722A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU639367B2 (en) * 1990-08-20 1993-07-22 Comalco Aluminium Limited Ledge-free aluminium smelting cell

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU639367B2 (en) * 1990-08-20 1993-07-22 Comalco Aluminium Limited Ledge-free aluminium smelting cell

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