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公开(公告)号:DE1567504B1
公开(公告)日:1970-04-02
申请号:DE1567504
申请日:1964-12-28
Applicant: HOECHST AG
Inventor: FRISCH PETER DR , KORINTH JUERGEN DR
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公开(公告)号:DE2505706A1
公开(公告)日:1976-08-26
申请号:DE2505706
申请日:1975-02-12
Applicant: HOECHST AG
Inventor: KORINTH JUERGEN DR , JOERCHEL EGON DR , RUSSOW JUERGEN DR
Abstract: In the parent patent antimony pentachloride is recovered from catalysts solns. used for the fluorination of chlorine derivatives of methane or ethane by (a) heating the catalyst soln. with trichloroethylene at 100-170 degrees C, until all of the Sb is converted into SbCl3, (b) separating the SbCl3 from the organic soln., and (c) converting the SbCl3 into SbCl5. In this addition the trichloroethylene is replaced by perchloroethylene. Reaction can be effected in non-pressurised systems at 100 degrees to b.p. of perchloroethylene (121-2 degrees C). Hexachloroethane is formed as by-prod. This cpd. is useful as an intermediate for the prepn. of chlorofluorohydrocarbons by reacting with hydrogen fluoride.
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公开(公告)号:DE2551433A1
公开(公告)日:1977-05-26
申请号:DE2551433
申请日:1975-11-15
Applicant: HOECHST AG
Inventor: FESER MANFRED DR , JOERCHEL EGON DR , KORINTH JUERGEN DR
Abstract: Process for the preparation of a concentrated tetrafluoroboric acid from boron/oxygen compounds and hydrogen fluoride by reacting a solid boron/oxygen compound with a hydrogen fluoride-containing gas.
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公开(公告)号:DE3112455A1
公开(公告)日:1982-10-07
申请号:DE3112455
申请日:1981-03-28
Applicant: HOECHST AG
Inventor: SEMMLER JOACHIM DR , KORINTH JUERGEN DR
Abstract: Hydrofluoric acid can be obtained, in addition to CO and/or CO2, from organic fluorine compounds which contain no halogens other than fluorine, at elevated temperature in the gas phase. To this end, the organic fluorine compound is admixed with enough water to permit (taking into account the hydrogen which may be bound) all the bound fluorine to be converted into HF, and at least enough oxygen to permit (taking into account the amount of oxygen which may be bound) the hydrogen not bound as HF to be converted into H2O and all of the bound carbon to be converted into CO and/or CO2. The mixture is heated to temperatures at which HF is formed, followed by separation of the generated hydrofluoric acid from the resulting gas mixture.
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公开(公告)号:DE1767200B1
公开(公告)日:1971-12-30
申请号:DE1767200
申请日:1968-04-11
Applicant: HOECHST AG
Inventor: SCHERER OTTO DR , PAUL DR RAMMELT PETER , KORINTH JUERGEN DR , FRISCH PETER DR
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公开(公告)号:DE3674109D1
公开(公告)日:1990-10-18
申请号:DE3674109
申请日:1986-08-04
Applicant: HOECHST AG
Inventor: HUG SIEGISMUT DR , KORINTH JUERGEN DR , HANDKE WOLFGANG DR
Abstract: A tubular reactor for thermally cracking fluorohydrocarbons has a burner system (1) with feed lines (3, 4, 6, 7) for a mixture of fluorohydrocarbon and fuel gas and for flushing gas and oxygen or air provided at one end of the tubular reactor. This burner system delimits the end face of a combustion chamber (2) which, near the burner system, is provided with an ignition branch (9) and devices (10, 11, 12, 13, and 14) for feeding and distributing a liquid. The combustion chamber is adjoined by an absorber of cylindrical blocks (21) with bores (22) parallel to the reactor axis for a liquid product stream and a gas discharged from the combustion chamber. The bores lead into a downstream annular chamber (28) which is provided with a branch (29) for discharging gas and liquid. The other end of the reactor has a pressure relief orifice (33) which is connected via a duct (32) to the combustion chamber (2).
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公开(公告)号:DE3529309A1
公开(公告)日:1987-03-19
申请号:DE3529309
申请日:1985-08-16
Applicant: HOECHST AG
Inventor: HUG SIEGISMUT DR , KORINTH JUERGEN DR , HANDKE WOLFGANG DR
Abstract: A tubular reactor for thermally cracking fluorohydrocarbons has a burner system (1) with feed lines (3, 4, 6, 7) for a mixture of fluorohydrocarbon and fuel gas and for flushing gas and oxygen or air provided at one end of the tubular reactor. This burner system delimits the end face of a combustion chamber (2) which, near the burner system, is provided with an ignition branch (9) and devices (10, 11, 12, 13, and 14) for feeding and distributing a liquid. The combustion chamber is adjoined by an absorber of cylindrical blocks (21) with bores (22) parallel to the reactor axis for a liquid product stream and a gas discharged from the combustion chamber. The bores lead into a downstream annular chamber (28) which is provided with a branch (29) for discharging gas and liquid. The other end of the reactor has a pressure relief orifice (33) which is connected via a duct (32) to the combustion chamber (2).
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公开(公告)号:DE3441932A1
公开(公告)日:1986-05-28
申请号:DE3441932
申请日:1984-11-16
Applicant: HOECHST AG
Inventor: HUG SIEGISMUT DR , LINDNER HELMUT DR , KORINTH JUERGEN DR
Abstract: The process relates to the production of a liquid absorbate from a liquid F and a readily soluble gaseous substance A. In this process, beginning with the liquid F and a gaseous mixture of A and a gaseous substance B sparingly soluble in F, this mixture, in a first reaction vessel, is brought into intimate contact with the liquid F, the undissolved portions of gaseous substance B are conducted away and the resulting liquid phase of F and A and small portions of B is expanded in a second reaction vessel. The thus released portions of B (and possibly A) are withdrawn as a gas phase. A liquid absorbate is obtained composed of F and A, which is essentially free of B. The gaseous mixture used is at a pressure of above 1 bar and the resulting liquid phase composed of F, A and small portions of B is expanded in an evacuated vessel. The vacuum is generated by a gas jet pump which is driven by the pressurised gaseous mixture of A and B. The gaseous mixture exiting the pump is brought into intimate contact with the liquid F. Alternatively, the vacuum is generated by a liquid jet pump which is driven by the pressurised liquid F. In this case, the liquid which exits the pump is brought into intimate contact with the gaseous mixture of B and, possibly, A.
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公开(公告)号:DE2702360A1
公开(公告)日:1978-08-03
申请号:DE2702360
申请日:1977-01-21
Applicant: HOECHST AG
Inventor: HALASZ SIGMAR-PETER VON DR , KORINTH JUERGEN DR
IPC: C07C17/20 , B01J21/00 , B01J23/92 , B01J27/00 , B01J27/12 , B01J27/32 , C07B61/00 , C07C17/00 , C07C19/08 , C07C19/10 , C07C19/12 , C07C67/00
Abstract: HOE 77/F 006 PROCESS FOR REACTIVATING FLUORINATION CATALYSTS of the disclosure: Chromoxyfluoride catalysts which are used for converting chlorocarbons with hydrogen fluoride into fluorochlorocarbons loose partly their activity after some time. Reactivation of the catalysts occurs upon treatment with fluoride at temperatures of from 70 to 300.degree. C.
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