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公开(公告)号：CH526489A
公开(公告)日：1972-08-15
申请号：CH1499669
申请日：1969-10-06
Applicant: HOECHST AG
Inventor： KUCKERTZ HERBERT DR , GROSSPIETSCH HORST DR , HOERNIG LOTHAR DR
IPC: C07C17/08 , C07C17/087
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公开(公告)号：ES2053696T3
公开(公告)日：1994-08-01
申请号：ES88121270
申请日：1988-12-20
Applicant: HOECHST AG
Inventor： HOROLDT ERNST DR , GRIMM RICHARD DR , RITTNER SIEGBERT DR , KUCKERTZ HERBERT DR , BILLMANN WILFRIED
Abstract: The separation process involves absorption by means of scrubbing liquids, characterised in that the waste gas polluted with harmful substances is scrubbed at temperatures of 0 to 50 DEG C with a scrubbing liquid composed of paraffin hydrocarbons having 10 to 20 C atoms or diisopropylnaphthalene and/or a mixture of isomers of the empirical formula C16H20, an average molecular weight of 210-215, a boiling point of 290-300 DEG C (DIN 51761) and a flash point above 130 DEG C (DIN 51758).
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公开(公告)号：DE3767074D1
公开(公告)日：1991-02-07
申请号：DE3767074
申请日：1987-08-12
Applicant: HOECHST AG
Inventor： GOESSEL HELMUT DR , KUCKERTZ HERBERT DR , RITTNER SIEGBERT DR , ROSENFELDER JOSEF DR , WOJTECH BERNHARD DR
IPC: B01D11/04 , C02F1/26 , C02F1/58 , C07C67/00 , C07C201/00 , C07C201/16 , C07C205/21 , C07C205/22 , C07C205/25 , C07C205/26
Abstract: The invention relates to a process for extracting nitrohydroxyaromatics from aqueous solutions. In this process, the extracting agent used is an amine salt which comprises an aliphatic amine having a total carbon number of 10 to 75 and a strong acid. The amine salt can be employed undiluted or diluted with an organic solvent.
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Patent Agency Ranking
公开(公告)号：DE3878547D1
公开(公告)日：1993-03-25
申请号：DE3878547
申请日：1988-12-20
Applicant: HOECHST AG
Inventor： HOEROLDT ERNST DR , GRIMM RICHARD DR , RITTNER SIEGBERT DR , KUCKERTZ HERBERT DR , BILLMANN WILFRIED
Abstract: Sepn. of organic components from waste gases produced in the mfr. of aromatic intermediates is effected by scrubbing with a 10-20C paraffinic hydrocarbon liq. (PHL) or diisopropylnaphthalene (DIPN) at 0-50 deg.C. DIPN includes C16H20 isomer mixts., with an av. molecular wt. of 210-215, a b.pt. of 290-300 deg.C and a flash point above 130 deg.C.
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公开(公告)号：CH514517A
公开(公告)日：1971-10-31
申请号：CH1190569
申请日：1969-08-05
Applicant: HOECHST AG
Inventor： GROSSPIETSCH HORST DR , HOERNIG LOTHAR DR , KUCKERTZ HERBERT DR
IPC: B01J27/30 , B01J38/00 , B01J38/60 , C07B61/00 , C07C17/00 , C07C17/156 , C07C17/158 , C07C21/067 , C07C67/00 , C07C21/04
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公开(公告)号：DE3627653A1
公开(公告)日：1988-02-25
申请号：DE3627653
申请日：1986-08-14
Applicant: HOECHST AG
Inventor： GOESSEL HELMUT DR , KUCKERTZ HERBERT DR , RITTNER SIEGBERT DR , ROSENFELDER JOSEF DR , WOJTECH BERNHARD DR
IPC: B01D11/04 , C02F1/26 , C02F1/58 , C07C67/00 , C07C201/00 , C07C201/16 , C07C205/21 , C07C205/22 , C07C205/25 , C07C205/26 , C07C79/24 , C07C79/32
Abstract: The invention relates to a process for extracting nitrohydroxyaromatics from aqueous solutions. In this process, the extracting agent used is an amine salt which comprises an aliphatic amine having a total carbon number of 10 to 75 and a strong acid. The amine salt can be employed undiluted or diluted with an organic solvent.
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公开(公告)号：DE3168197D1
公开(公告)日：1985-02-21
申请号：DE3168197
申请日：1981-10-24
Applicant: HOECHST AG
Inventor： KUCKERTZ HERBERT DR , SCHAEFFER GEORG DR
IPC: C07C43/257 , B01J27/00 , B01J27/232 , B01J31/00 , C07B61/00 , C07C41/00 , C07C41/16 , C07C43/263 , C07C43/275 , C07C43/29 , C07C45/70 , C07C67/00
Abstract: Diphenyl ethers are prepared by Ullmann reaction of alkali metal phenolates with halobenzenes in the presence of basic copper carbonate and/or copper salts of lower aliphatic carboxylic acids as catalysts. These special catalysts have a better catalytic activity than other copper catalysts known for the Ullmann reaction. The diphenyl ethers prepared or obtainable according to the invention are mainly intermediates in diverse fields such as pharmaceuticals or plant protecting agents.
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公开(公告)号：DE3129194A1
公开(公告)日：1983-02-10
申请号：DE3129194
申请日：1981-07-24
Applicant: HOECHST AG
Inventor： KUCKERTZ HERBERT DR , SCHAEFFER GEORG DR
IPC: C07C45/33 , C07C45/00 , C07C45/36 , C07C45/78 , C07C45/80 , C07C45/82 , C07C47/52 , C07C67/00 , C07C47/542 , C07C47/575
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