中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

11 records (took 0.017 seconds)

    Production of cycloalkanone oximes
    3.
    发明授权
    Production of cycloalkanone oximes 失效
    生产环烷基酮氧化物

    公开(公告)号：US3766038A

    公开(公告)日：1973-10-16

    申请号：US3766038D

    申请日：1971-12-15

    Applicant: BASF AG

    Inventor： BECK F ,  WUNSCH G ,  FUCHS H ,  KAHR K

    IPC: B01D61/42 ,  B01D13/02

    CPC classification number: B01D61/44 ,  B01D2311/2684

    Abstract: A process for the production of cycloalkanone oximes by reaction of cycloalkanones with hydroxylammonium salts or mixtures thereof with ammonium salts and acids in aqueous solution. The free and combined acid is removed from the mixtures by electrodialysis before, during or after the oximation. The reaction of the cycloalkanone to the oxime is preferably carried out in the cathode chamber of an electrodialysis cell. Complete oximation of the cycloalkanone is achieved.

    Abstract translation: 通过环烷酮与羟基铵盐或其混合物与水溶液中的铵盐和酸的反应制备环烷酮肟的方法。 在肟化之前，期间或之后，通过电渗析从混合物中除去游离和组合的酸。 环烷酮与肟的反应优选在电渗析池的阴极室中进行。 实现了环烷酮的完全肟化。

    Production of dry sodium dichloroisocyanurate
    4.
    发明授权
    Production of dry sodium dichloroisocyanurate 失效
    生产干燥二氯二苯甲酸钠

    公开(公告)号：US3818002A

    公开(公告)日：1974-06-18

    申请号：US19399771

    申请日：1971-10-29

    Applicant: BASF AG

    Inventor： GOELZ H ,  STOCKBURGER D ,  SAEUBERLICH M ,  VON ERDEN K ,  MUELLER F ,  FUCHS H

    IPC: C07D251/36 ,  C07D55/38

    CPC classification number: C07D251/36

    Abstract: Production of dry sodium dichloroisocyanurate by spray-drying and up to 50 percent w/w aqueous solution or sussion of the salt in a fluidized bed maintained by inert gases and consisting of finely divided dry sodium dichloroisocyanurate, at from 100* to 300*C.

    Abstract translation: 在惰性气体保持的流化床中通过喷雾干燥和高达50％w / w的水溶液或盐的冲洗来生产干燥的二氯异氰脲酸钠，并由细分的干二氯异氰脲酸钠组成，在100-300℃下。

    Production of trioxane
    5.
    发明授权
    Production of trioxane 失效
    三氧化二铁的生产

    公开(公告)号：US3781304A

    公开(公告)日：1973-12-25

    申请号：US3781304D

    申请日：1972-01-24

    Applicant: BASF AG

    Inventor： FUCHS H ,  HILT A

    IPC: C07D323/06 ,  C07D19/00

    CPC classification number: C07D323/06

    Abstract: PRODUCTION OF TRIOXANE FROM AQUEOUS FORMALDEHYDE SOLUTIONS IN THE PRESENCE OF MIXTURES OF BORIC ACID AND PHOSPHORIC ACID AS ACID CATALYSTS.

    Production of hydroxylammonium nitrate
    6.
    发明授权
    Production of hydroxylammonium nitrate 失效
    硝基羟胺的生产

    公开(公告)号：US3856924A

    公开(公告)日：1974-12-24

    申请号：US21266371

    申请日：1971-12-27

    Applicant: BASF AG

    Inventor： MEIER H ,  JOCKERS K ,  KAHR K ,  KARTTE K ,  FUCHS H

    IPC: C01B21/14

    CPC classification number: C01B21/1418

    Abstract: Production of an aqueous solution of hydroxylammonium nitrate by catalytic reduction of nitrogen monoxide with hydrogen in acid solution, a platinum catalyst being used which has been partly poisoned with one or more elements of main groups V and/or VI of the Periodic Table and activated prior to the beginning of the reaction in an aqueous suspension with hydrogen. Nitric acid is continuously supplied during the reaction in an amount necessary for the end concentration of hydroxylammonium nitrate.

    Abstract translation: 通过在酸性溶液中用氢气一氧化氮催化还原一氧化氮，生产硝酸羟铵，使用铂催化剂，该铂催化剂已经被元素周期表的主要V和/或VI元素的一种或多种元素部分中毒， 在具有氢气的水悬浮液中开始反应。 硝酸在反应期间以硝酸羟铵的最终浓度所需的量连续供给。

    Production of butanediolformal
    7.
    发明授权
    Production of butanediolformal 失效
    生产丁二醛

    公开(公告)号：US3849444A

    公开(公告)日：1974-11-19

    申请号：US13992271

    申请日：1971-05-03

    Applicant: BASF AG

    Inventor： FUCHS H ,  RICKER E ,  SCHMIDT F ,  SCHWARTZ E ,  SPERBER H

    IPC: C07D17/00

    Abstract: 1. IN A PROCESS FOR THE PRODUCTION OF 1,4-BUTANEDIOLFORMAL WHEREIN A MIXTURE OF BUTANEDIOL-1,4M AN AQUEOUS SOLUTION OF FORMALDEHYDE OT A SUBSTANCE YIELDING FORALDEHYDE, AND AN ACID OR ACID SALT IS HEATED IN A REACTION VESSEL, THE IMPROVEMENT WHICH COMPRISES CONTINUOUSLY (A) HEATING AT THE BOIL A CONSTANT AMOUNT OF SAID REACTION MIXTURE WHICH CONTAINS LESS THAN 1% BY WEIGHT OF A STRONG ACID OR LESS THAN 10% BY WEIGHT OF AN ACID SALT OR A WEAK ACID, (B) EVAPORATING THE PRODUCT OF THE SYNTHESIS FROM THE REACTION MIXTURE AT SUCH A VELOCITY THAT A MEAN RESIDUE TIME IN THE REACTION VESSEL OF LESS THAN 240 MINUTES IS SET UP FOR A REACTION MIXTURE, (C) CONDENSING THE VAPORS OF THE PRODUCT OF THE SYNTHESIS, (D) SEPARATING THE TWO LAYERS WHICH FORM IN A LIQUID CONDENSATE, (E) SUBJECTING THE UPPER LAYER TO TREATMENT WITH ALKALI, PASSING SAID LAYER THROUGH AN EVAPORATOR AND THEREAFTER FRACTIONALLY DISTILLING SAID TREATED LAYER, AND (F) SUBJECTING THE LOWER LAYER TO AZEOTROPIC DISTILLATION AND RECYCLING THE THE DISTILLATE TO THE UNCONDENSED PRODUCT STREAM WHICH LEAVES THE REACTION VESSEL.

Patent Agency Ranking