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    Process for the recovery of antimony pentachloride from catalyst solutions
    1.
    发明授权
    Process for the recovery of antimony pentachloride from catalyst solutions 失效
    从催化剂解决方案中恢复抗氧化剂的方法

    公开(公告)号：US3784671A

    公开(公告)日：1974-01-08

    申请号：US3784671D

    申请日：1971-11-16

    Applicant: HOECHST AG

    Inventor： JOERCHEL E ,  KOHLHAAS R

    IPC: B01J27/06 ,  C01G30/00 ,  C01B29/00

    CPC classification number: C01G30/007 ,  B01J27/06

    Abstract: THE INVENTION RELATES TO A PROCESS OF RECOVERING ANTIMONY PENTACHLORIDE FROM CATALYST SOLUTIONS USED FOR THE FLUORINATION OF CHLORINE CONTAINING HYDROCARBONS. THE PROCESS IS BASED UPON A THERMAL DECOMPOSITION OF ANTIMONY PENTACHLORIDE INTO ANTIMONY TRICHLORIDE AND CHLORINE AT A TEMPERATURE OF 60* TO 300*C. THE ORGANIC IMPURITIES ARE EXTRACTED FROM THE PRECIPITATED ANTIMONY TRICHLORIDE BY MEANS OF HALOGENATED HYDROCARBONS. THE REMAINING ANTIMONY TRICHLORIDE IS REOXIDATED WITH CHLORINE-WHICH MAY BE RECYCLED FROM THE STEP OF THE THERMAL DECOMPOSITION-AT AT TEMPERATURE OF FROM 60* TO 150* C. AND A PRESSURE OF ZERO TO FIVE ATMOSPHERES TO YIELD ANTIMONY PENTACHLORIDE WHICH IS REFINED BY DISTILLATION.

    2.
    发明专利
    未知

    公开(公告)号：DK132698C

    公开(公告)日：1976-06-28

    申请号：DK209670

    申请日：1970-04-23

    Applicant: HOECHST AG

    Inventor： BAECHLE H T ,  KOHLHAAS R

    IPC: C01B21/22

    Abstract: To produce N2O, ammonium nitrate is decomposed in an aqueous, chloride-containing solution in nitric acid while an ammonia atmosphere is maintained above the reaction mixture. The preferred temperature range of the solution is 110 DEG -125 DEG C. The atmosphere of ammonia is maintained by introducing at least part of the required ammonia into the gas volume of the reaction vessel. The decomposition of the ammonium nitrate and the formation of N2O is enhanced by the presence of catalytically active ions of manganese, copper, cerium, lead, bismuth, cobalt and nickel; manganese, especially in its bivalent form, being preferred.

    CORROSION RESISTANT AND DIMENSIONALLY STABLE ELECTRODE FOR ELECTROCHEMICAL PROCESSES
    5.
    发明专利
    CORROSION RESISTANT AND DIMENSIONALLY STABLE ELECTRODE FOR ELECTROCHEMICAL PROCESSES 未知

    公开(公告)号：ZA726355B

    公开(公告)日：1973-07-25

    申请号：ZA726355

    申请日：1972-09-18

    Applicant: HOECHST AG

    Inventor： BERGNER D ,  KOHLHAAS R

    IPC: C23F13/00 ,  C25B11/04 ,  C25B11/10 ,  C25D17/10 ,  B01K

    Abstract: 1415684 Metal oxido compounds HOECHST AG 9 Oct 1972 [7 Oct 1971] 46535/72 Heading C1A [Also in Divisions C6-C7] A crystalline oxido compound of ruthenium and/or iridium with gallium, indium, thallium, copper, zinc or cobalt is formed by heating a mixture or solution comprising thermally decomposable compounds of the relevant metals at a temperature below 900‹ C. in the presence or air or oxygen. Suitable decomposable compounds include the formates, acetates, oxalates, tartrates, oleates, citrates, stearates, naphthenates and resinates of any of the above metals and the chlorides, nitrosochlorides, nitrosonitrates, complex compounds and carbonyls of ruthenium and iridium.

    9.
    发明专利
    未知

    公开(公告)号：DK130718C

    公开(公告)日：1975-09-01

    申请号：DK255369

    申请日：1969-05-09

    Applicant: HOECHST AG

    Inventor： HLOCH A ,  MEDIC N ,  KOHLHAAS R

    IPC: C01B25/38 ,  C01B25/36

    Abstract: The preparation of condensed aluminum phosphates containing phosphorus pentoxide and aluminum trioxide in a molar ratio within the range of from 1.1 : 1 to 3 : 1 is carried out by reacting water-soluble alkali metal polyphosphates with water-soluble aluminum salts and water and subjecting them to a heat treatment.

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