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    Process for the manufacutre of 2-chlorobutadiene-(1,3)
    31.
    发明授权
    Process for the manufacutre of 2-chlorobutadiene-(1,3) 失效
    2-氯代二苯并呋喃的制备方法（1,3）

    公开(公告)号：US3689579A

    公开(公告)日：1972-09-05

    申请号：US3689579D

    申请日：1966-10-31

    Applicant: KNAPSACK AG

    Inventor： BAADER HERBERT ,  SENNEWALD KURT ,  REIS HELMUT ,  VIERTEL GUNTHER

    IPC: C07C17/25 ,  C07C21/20

    CPC classification number: C07C17/25 ,  C07C21/21

    Abstract: Process for converting 1,3-dichlorobutene-(2) to 2chlorobutadiene-(1,3) by uncatalyzed dehydrochlorination of the previously vaporized reactant for a period not exceeding 10 seconds and at a temperature of 450*-650* c, the resulting gases being immediately cooled to a temperature of 0*-35* c by quenching and substantially pure product recovered from the quenching liquid.

    Abstract translation: 通过未催化的先前蒸发的反应物的脱氯化氢处理不超过10秒并在450-650℃的温度下将1,3-二氯丁烯（2）转化为2-氯丁二烯 - （1,3）的方法， 所产生的气体通过淬火立即冷却到0°-35℃的温度，并从骤冷液中回收基本上纯的产物。

    Process for the dehydrochlorination of chlorinated hydrocarbons
    33.
    发明授权
    Process for the dehydrochlorination of chlorinated hydrocarbons 失效
    氯化氢脱氯工艺

    公开(公告)号：US3649700A

    公开(公告)日：1972-03-14

    申请号：US3649700D

    申请日：1967-11-22

    Applicant: KNAPSACK AG

    Inventor： BAADER HERBERT ,  SENNEWALD KURT ,  REIS HELMUT ,  VIERTEL GUNTHER

    IPC: C07C17/25 ,  C07C21/04

    CPC classification number: C07C17/25

    Abstract: PROCESS FOR THE DEHYDROCHLORINATION OF CHLORINATED HYDOCARBONS BY HEATING THE SAME IN THE PRESENCE OF ALKYL PHOSPHINE AND/OR ARYL PHOSPHINE AND/OR THEIR HYDROCHLORIDES OR QUATERNARY PHOSPHONIUM CHLORIDES AS A CATALYST, AT A TEMPERATURE BETWEEN 100 AND 250*C., AND BY DISTILLING OFFF THE RESULTING DEHYDROCHLORINATED PRODUCTS AND HYDROGEN CHLORIDE, WHICH COMPRISES HEATING THE CHLORINATED HYDROCARBONS UNDER A PRESURE BETWEEN 2 AND 21 ATMOSPHERES ABSOLUTE.

    Process for the manufacture of acrylic acid by the oxidation of propylene and/or acrolein
    34.
    发明授权
    Process for the manufacture of acrylic acid by the oxidation of propylene and/or acrolein 失效
    通过丙烯和/或丙烯酸氧化制备丙烯酸的方法

    公开(公告)号：US3647867A

    公开(公告)日：1972-03-07

    申请号：US3647867D

    申请日：1968-08-13

    Applicant: KNAPSACK AG

    Inventor： SENNEWALD KURT ,  HAUSER ALFRED ,  LORK WINFRIED

    IPC: C07C51/25 ,  C07C57/04

    CPC classification number: C07C51/252 ,  C07C57/04

    Abstract: PRODUCTION OF ACRYLIC ACID COMPRISING REACTING PROPYLENE AND/OR ACROLEIN AND/OR A SUBSTANCE YIELDING ACROLEIN UNDER THE REACTION CONDITIONS, SUCH AS ALLYL ALCOHOL, IN THE GAS PHASE WITH OXYGEN AT TEMPERATURES BETWEEN 280 AND 600*C., UNDER PRESSURE BETWEEN 0.1 AND 10 ATMOSPHERES ABSOLUTE, AND FOR A PERIOD OF TIME BETWEEN 0.1 AND 20 SECONDS, IN THE PRESENCE OF STEAM AND IN CONTACT WITH A CATALYST CONSISTING OF THE OXIDES OF SILVER, IRON BISMUTH, MOLYBDENUM AND, IF DESIRED, PHOSPHORUS, WHICH ARE PRESENT IN THE ATOMIC RATIO OF

    AG0.01-1.5FE0.1-12BI091-12P0-5MO12O20-110

    THE CATALYST BEING DEPOSITED ON A CARRIER, IF DESIRED.

    Process for the manufacture of a mixture consisting substantially of 1,2-dichlorobutene-(2),1,3-dichlorobutene-(2) and 2,3-dichlorobutene-(1)
    36.
    发明授权
    Process for the manufacture of a mixture consisting substantially of 1,2-dichlorobutene-(2),1,3-dichlorobutene-(2) and 2,3-dichlorobutene-(1) 失效
    （2），1,3-二氯硼酸（2）和2,3-二氯硼酸盐（1）的混合物的制备方法

    公开(公告)号：US3585247A

    公开(公告)日：1971-06-15

    申请号：US3585247D

    申请日：1968-07-30

    Applicant: KNAPSACK AG

    Inventor： SENNEWALD KURT ,  GEHRMANN KLAUS ,  VIERTEL GUNTER

    IPC: C07C17/25 ,  C07C17/38 ,  C07C21/09 ,  C07C21/04

    CPC classification number: C07C17/25 ,  C07C17/383 ,  C07C17/392 ,  C07C21/09 ,  C07C19/01

    Abstract: IMPROVEMENT IN OR MODIFICATION OF THE PROCESS DESCRIBED IN COPENDING APPLICATION SER. NO. 587,434, NOW U.S. PAT. NO. 3,413,365 COMPRISING WITHDRAWING RESULTING DICHLOROBUTENE MIXTURE AT A REFLUX RATION OF R=1 TO 20; WITHDRAWING THE COMPLETELY CONDENSED MATTER OR REFLUX MATTER NEAR THE COLUMN BASE; INTRODUCING SUCH MATTER INTO A CIRCULATION EVAPORATOR AND RECYCLING IT LATER IN VAPOR FORM FROM SAID EVAPORATOR INTO THE REACTOR; CONTINUOUSLY SUPPLYING THE SAID CIRCULATION EVAPORATOR WITH METERED QUANTITIES OF FRESH TETRACHLOROBUTANE-CONTAINING 1,2,3-TRICHLOROBUTANE COMING FROM A RSERVOIR, THE SAID TETRACHLOROBUTANECONTAINING 1,2,3-TRICHLOROBUTANE BEING SUPPLIED AT THE SAME RATE AS PRODUCED DICHLOROBUTENE MIXTURE IS WITHDRAWN FROM THE COLUMN; AND, ONCE THE 1,2,3-TRICHLOROBUTANE IN THE REACTOR IS FOUND TO CONTAIN ABOUT 30% BY WEIGHT TETRACHLOROBUTANE, INTRODUCING A PORTION OF THE REFLUX MATTER WITHDRAWN NEAR THE COLUMN BASE INTO A STIRRABLE COOLER; CENTRIFUGING THE 2,2,3,3-TETRACHLOROBUTANE, WHICH IS FOUND PARTIALLY TO CRYSTALLIZE IN THE SAID COOLER AT A TEMPERATURE OF 0*C., AND WITHDRAWING IT; AND RECYCLING MOTHER LIQUOR TO THE SAID CIRCULATION EVAPORATOR.

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