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公开(公告)号:IN150092B
公开(公告)日:1982-07-17
申请号:IN604CA1979
申请日:1979-06-11
Applicant: HOECHST AG
Inventor: SCHLADETSEH H , DEUCKER W
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公开(公告)号:DK136160C
公开(公告)日:1978-01-23
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.
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公开(公告)号:IN139701B
公开(公告)日:1976-07-17
申请号:IN19CA1973
申请日:1973-08-28
Applicant: HOECHST AG
IPC: C07D311/92 , C07C51/00 , C07C51/363 , C07C63/72 , C07C67/00 , C07C63/00 , C07C63/36 , C09B57/00 , C09B63/00
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.
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公开(公告)号:BR7400335D0
公开(公告)日:1974-08-22
申请号:BR33574
申请日:1974-01-17
Applicant: HOECHST AG
IPC: C07D311/92 , C07C63/72 , C07C63/18
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.
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公开(公告)号:DK122134B
公开(公告)日:1972-01-24
申请号:DK547768
申请日:1968-11-11
Applicant: HOECHST AG
Inventor: DEUCKER W , SPIETSCHKA E
IPC: C09B47/04
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公开(公告)号:BR7603523A
公开(公告)日:1977-01-04
申请号:BR7603523
申请日:1976-06-02
Applicant: HOECHST AG
Inventor: DEUCKER W , LOWENFELD R
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公开(公告)号:IN140179B
公开(公告)日:1976-09-25
申请号:IN2490CA1973
申请日:1973-11-13
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.
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公开(公告)号:IN150557B
公开(公告)日:1982-11-13
申请号:IN572CA1979
申请日:1979-06-01
Applicant: HOECHST AG
Inventor: ENGELMANN A , DEUCKER W
IPC: C09B29/08 , C09B31/043 , C09B29/34 , C09B39/00
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