公开(公告)号：DK136160B

公开(公告)日：1977-08-22

申请号：DK617873

申请日：1973-11-15

Applicant: HOECHST AG

Inventor： DEUCKER W ,  SPIETSCHKA E ,  STEIDL D

IPC: C09B47/067 ,  C09B67/00 ,  C09B47/06

Abstract: A continuous process for preparing copper phthalocyanines by caking a mixture of phthalodinitrile, and a copper salt which comprises carrying out the reaction in a continuously working, heatable, tubular vibration mill, which contains iron or steel bars in the grinding room.

公开(公告)号：IN139925B

公开(公告)日：1976-08-21

申请号：IN75CA1974

申请日：1974-01-10

Applicant: HOECHST AG

Inventor： DEUCKER W ,  TROSTER H

IPC: C07D311/92 ,  C07C63/72 ,  C07C51/54 ,  C07C51/58

Abstract: A process for the preparation of 4-bromo-naphthalic acid anhydride by bromination of an alkali metal salt of naphthalic acid in an aqueous medium at a pH of 6.8 to 9 by dropwise adding 0.55 to 0.65 mol of bromine per mol of naphthalic acid and oxidizing the bromine at the same pH-value with chlorine. By this process 4-bromo-naphthalic acid anhydride can be obtained in a quantitative yield whereby the formation of 4-chloro-naphthalic acid is avoided.

公开(公告)号：BR7308853D0

公开(公告)日：1974-08-22

申请号：BR885373

申请日：1973-11-12

Applicant: HOECHST AG

Inventor： DEUCKER W ,  SPIETSCHKA E ,  STEIDL D

IPC: C09B47/067 ,  C09B67/00 ,  C09B47/04

Abstract: A continuous process for preparing copper phthalocyanines by caking a mixture of phthalodinitrile, and a copper salt which comprises carrying out the reaction in a continuously working, heatable, tubular vibration mill, which contains iron or steel bars in the grinding room.

公开(公告)号：BR7306651D0

公开(公告)日：1974-07-18

申请号：BR665173

申请日：1973-08-29

Applicant: HOECHST AG

Inventor： TROSTER H ,  DEUCKER W

IPC: C07D311/92 ,  C07C51/00 ,  C07C51/363 ,  C07C63/72 ,  C07C67/00 ,  C07C63/38

Abstract: 1439994 Preparation of 4-chloronaphthalic acid, its anhydride, salts and derivatives HOECHST AG 30 Aug 1973 [30 Aug 1972] 40793/73 Heading C2C The invention comprises a process for the preparation of 4-chloronaphthalic acid, its anhydride, salts and derivatives which comprises chlorinating naphthalic acid or an anhydride, salt or derivative thereof in a solution containing alkali metal, hydroxide or carbonate and having a pH of 6.8-9.0 and then, if necessary, converting the obtained 4-chloroproduct to the required acid, salt, anhydride or derivative by a method known per se. The chlorination may be carried out using Cl 2 or hypochlorite and the exemplified product is 4-chloronaphthalic anhydride.

公开(公告)号：BR6909620D0

公开(公告)日：1973-02-22

申请号：BR20962069

申请日：1969-06-10

Applicant: HOECHST AG

Inventor： SPIEISCHKA E ,  DEUCKER W

IPC: C09B47/067