中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

217 records (took 0.041 seconds)

    Process for the production of caprolactam
    102.
    发明授权
    Process for the production of caprolactam 失效
    生产CAPROLACTAM的方法

    公开(公告)号：US3652553A

    公开(公告)日：1972-03-28

    申请号：US3652553D

    申请日：1969-12-08

    Applicant: BAYER AG

    Inventor： MANSMANN MANFRED ,  IMMEL OTTO ,  ZIRNGIBL HANS

    IPC: C07D201/04 ,  C07D41/06

    CPC classification number: C07D201/04

    Abstract: AN IMPROVEMENT FOR THE PROCESS TO PRODUCE LACTAMS BY CATALYTICALLY REARRANGING CYCLIC KETOXIMES BY PASSING A GAS MIXTURE CONSISTING OF A GASEOUS CYCLIC KETONXINE AND STEAM OR A MIXTURE OF A GASEOUS CYCLIC KETOXIME, STEAM AND AN INERT GAS OVER A BORON OXIDE CATALYST AT TEMPERATURES OF FROM 200 TO 400*C. AND RECOVERING THE LACTAM FROM THE GAS MIXTURE THUS OBTAINED. BEFORE. BEFORE PASSING THE STEAM OVER THE BORON OXIDE CATALYST THEY ARE SATURATED WITH BORON OXIDE BY PASSING OVER THE X-RAY CRYSTALLINE MODIFICATION OF BORON OXIDE AT A TEMPERATURE OF FROM 200 TO 450C.

    Production of epsilon-caprolactam
    103.
    发明授权
    Production of epsilon-caprolactam 失效
    生产EPSILON-CAPROLACTAM

    公开(公告)号：US3631030A

    公开(公告)日：1971-12-28

    申请号：US3631030D

    申请日：1970-01-06

    Applicant: BASF AG

    Inventor： BRENNER KARL-SIEGFRIED

    IPC: C07D201/04 ,  C07D41/06

    CPC classification number: C07D201/04

    Abstract: PRODUCTION OF CAPROLACTAM BY CATALYTIC REARRANGEMENT OF CYCLOHEXANONE OXIME IN THE VAPOR PHASE IN CONTACT WITH BORIC OXIDE CATALYSTS ON ALUMINA WHICH CONTAIN FROM 0.1 TO 10% BY WEIGHT OF MANGANESE, NICKEL AND/OR COBALT OR AS THE SALTS OXIDES OF SUCH METALS. CAPROLACTAM IS USEFUL FOR THE PRODUCTION OF NYLON 6 WHICH IS A FIBER INTERMEDIATE.

    Method and apparatus for continuous mixing of liquids
    105.
    发明授权
    Method and apparatus for continuous mixing of liquids 失效
    液体连续混合的方法和装置

    公开(公告)号：US3601318A

    公开(公告)日：1971-08-24

    申请号：US3601318D

    申请日：1969-04-03

    Applicant: INVENTA AG

    Inventor： GEHRING ALBERT ,  KUGLER MAX ,  SCHULTZE HANS-JOACHIM

    IPC: B01F5/04 ,  B01J19/26 ,  C07D201/04 ,  D04H1/54 ,  B05B7/12

    CPC classification number: C07D201/04 ,  B01F5/048 ,  Y10T137/87627

    Abstract: Apparatus and method for mixing of a feed liquid with a process liquid comprising a pipe having a cylindrical bore, said process liquid flowing in the pipe, a throat in the bore, the portion of the bore downstream of the throat and forming an angle between said portion and the axis of said bore of up to about 15*, at least one feed nozzle for injection of said feed liquid disposed in said pipe and extending between a source of feed liquid and the bore, the nozzle opening into the bore at the throat and being cylindrical in cross section, the axis of the nozzle forming a second angle with a portion of the axis of the bore upstream of the nozzle, the second angle being from 30*-90* whereby said feed liquid is injected at a velocity of from 2 to 15 times the velocity of the process liquid.

Patent Agency Ranking