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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

    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.

    6.
    发明专利
    未知

    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

    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).

    7.
    发明专利
    未知

    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

    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).

    Process for producing a liquid absorbate

    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

    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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