中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

8 records (took 0.01 seconds)

    Process for the production of allyl acetate
    1.
    发明授权
    Process for the production of allyl acetate 失效
    生产乙酸烯丙酯的方法

    公开(公告)号：US3925452A

    公开(公告)日：1975-12-09

    申请号：US33053673

    申请日：1973-02-07

    Applicant: BAYER AG

    Inventor： SWODENK WOLFGANG ,  SCHARFE GERHARD

    IPC: C07C67/055 ,  C07C20060101 ,  C07C67/00 ,  C07C67/04 ,  C07C67/05 ,  C07C69/00 ,  C07C69/12 ,  C07C69/14 ,  C07C69/155

    CPC classification number: C07C67/055 ,  C07C69/007 ,  C07C69/155

    Abstract: A process for the production of allyl acetate, which is useful for the production of allylic alcohol, wherein propylene, oxygen and acetic acid are reacted over a supported palladium catalyst, in the presence of water vapor and under control of the water: acetic acid ratio to yield a liquid product that separates into an upper, substantially pure allyl acetate, phase and a lower, substantially pure water, phase.

    Abstract translation: 一种制备乙酸烯丙酯的方法，其可用于制备烯丙醇，其中丙烯，氧和乙酸在负载的钯催化剂上，在水蒸气存在下并在水：乙酸比例的控制下反应 以产生分离成上部，基本上纯的乙酸烯丙酯，相和较低的基本上纯的水相的液体产物。

    Production of anthraquinone from naphthalene
    2.
    发明授权
    Production of anthraquinone from naphthalene 失效
    从萘胺生产蒽醌

    公开(公告)号：US3870730A

    公开(公告)日：1975-03-11

    申请号：US35057073

    申请日：1973-04-12

    Applicant: BAYER AG

    Inventor： SCHARFE GERHARD ,  GROLIG JOHANN

    IPC: C07C50/12 ,  C07C45/00 ,  C07C46/02 ,  C07C50/18 ,  C07C67/00 ,  C09B1/00

    CPC classification number: C07C46/02 ,  C07C50/18

    Abstract: In the production of anthraquinone wherein naphthalene is oxidized to form naphthoquinone and phthalic anhydride, the naphthoquinone is reacted with butadiene to form tetrahydroanthraquinone, and the tetrahydroanthraquinone is reacted with oxygen to form anthraquinone, the improvement which comprises effecting the reaction of naphthoquinone with butadiene at an elevated temperature in the presence of naphthalene to produce a reaction mixture comprising naphthalene, tetrahydroanthraquinone and phthalic anhydride, separating the naphthalene from said reaction mixture, reacting the remaining mixture comprising tetrahydroanthraquinone and phthalic anhydride at an elevated temperature with molecular oxygen, and removing phthalic anhydride from the oxidation reaction mixture comprising anthraquinone and phthalic anhydride. Because the solvents in the several steps are naphthalene and phthalic anhydride and these are part of the system anyhow, obviously there is no contamination with extraneous materials. The equipment is simple and inexpensive and produces the desired material in high yield and purity.

    Abstract translation: 在其中萘被氧化形成萘醌和邻苯二甲酸酐的蒽醌的生产中，萘醌与丁二烯反应形成四氢蒽醌，四氢蒽醌与氧反应形成蒽醌，其改进包括在萘醌与丁二烯的反应中 在萘存在下升高温度以产生包含萘，四氢蒽醌和邻苯二甲酸酐的反应混合物，从所述反应混合物中分离出萘，在升高的温度下使包含四氢蒽醌和邻苯二甲酸酐的剩余混合物与分子氧反应，并将邻苯二甲酸酐从 所述氧化反应混合物包含蒽醌和邻苯二甲酸酐。 因为这几个步骤中的溶剂是萘和邻苯二甲酸酐，这些都是系统的一部分，显然没有外来物质的污染。 该设备简单且便宜，并以高产率和纯度生产所需材料。

    Process for the production of vinyl esters
    5.
    发明授权
    Process for the production of vinyl esters 失效
    生产乙烯酯的方法

    公开(公告)号：US3822308A

    公开(公告)日：1974-07-02

    申请号：US23432272

    申请日：1972-03-13

    Applicant: BAYER AG

    Inventor： KROENIG WALTER ,  SCHARFE GERHARD

    IPC: C07C69/01 ,  B01J23/44 ,  B01J23/52 ,  B01J37/02 ,  B01J37/03 ,  C07B61/00 ,  C07C67/055 ,  C07C67/04

    CPC classification number: B01J37/0205 ,  B01J23/44 ,  B01J23/52 ,  B01J37/03 ,  C07C67/055 ,  C07C69/01 ,  C07C69/15

    Abstract: IMPROVEMENT IN A PROCESS FOR THE PRODUCTION OF VINYL ESTERS BY REACTING ETHYLENE, LOWER CARBOXYLIC ACIDS WITH 2 TO 4 CARBON ATOMS AND OXYGEN IN THE GAS PHASE AT ELEVATED TEMPERATURE AND NORMAL OR ELEVATED PRESSURE, IN THE PRESENCE OF SUPPORTED CATALYST CONSISTING ESSENTIALLY OF PALLADIUM, GOLD AND AN ALKALI METAL ACETATE ON A SILICIC ACID SUPPORT, WHICH IMPROVEMENT COMPRISES PREPARING THE CATALYST BY TREATING THE SUPPORT, SIMULTANEOUSLY OR SUCCESSIVELY OR IN COMBINATION WITH A SOLUTION A DND A SOLUTION B, THE SOLUTION A CONTAINING DISSOLVED SALTS OF PALLADIUM AND GOLD AND THE SOLUTION B CONTAINING COMPOUNDS WHICH ARE ABLE TO REACT ON THE CATALYST SUPPORT WITH THE NOBLE METAL SALTS OF THE SOLUTION A TO FORM WATER-IN-SOLUBLE NOBLE METAL COMPOUNDS WHICH ARE SUBSTANTIALLY FREE OF HALOGEN, SULPHUR AND NITROGEN, IMPREGNATING THE CATALYST SUPPORT WITH THE SOLUTIONS A AND B IR WITH THE COMBINED SOLUTION OF A AND B IN QUANITIES WHICH CORRESPOND TO FROM 1 TO 110% OF THE ABSORPTIVE CAPACITY OF THE CATALYST SUPPORT FOR THESE SOLUTIONS: SUBJECTING THE CATALYST SUPPORT IMPREGNATED WITH THE SOLUTIONS A AND B TO A TIME/ TEMPERATURE-TREATMENT WHICH IS SUCH THAT 95% AT LEAST OF THE IMTHE IMPREGNATED PALLADIUM AND 95% AT LEAST OF THE IMPREGNATED GOLD IS TRANSFORMED INTO WATER-INSOLUBLE NOBLE METAL COMPOUNDS, TREATING THE WATER-INSOLUBLE NOBLE COMPOUNDS WITH A REDUCING AGENT TO COVEY THESE COMPOUNDS SUBSTANTIALLY INTO THE CORRESPONDING NOBLE METALS AND REMOVING THE WATER-SOLUBLE COMPOUNDS WHICH ARE CONTAINED IN THE CATALYST BY WASHING, AND APPLYING AN ALKALI METAL COMPOUND BEFORE OR AFTER THE TREATMENT WITH THE REDUCIING AGENTS, THE ALKALI METAL COMPOUNDS CONSISTING OF ALKALI METAL CARBOXYLATES OR OF ALKALI METAL COMPOUNDS WHICH ARE WHOLLY OR IN PART TRANSFORMED INTO ALKALI METAL CARBOXYLATES UNDER THE REACTION CONDITIONS.

    Process for the production of catalysts for making vinyl esters
    6.
    发明授权
    Process for the production of catalysts for making vinyl esters 失效
    制备乙烯基酯的催化剂生产工艺

    公开(公告)号：US3775342A

    公开(公告)日：1973-11-27

    申请号：US3775342D

    申请日：1971-12-29

    Applicant: BAYER AG

    Inventor： KROENIG WALTER ,  SCHARFE GERHARD

    IPC: C07C69/01 ,  B01J23/44 ,  B01J23/52 ,  B01J37/02 ,  B01J37/03 ,  C07B61/00 ,  C07C67/055 ,  C07C67/04

    CPC classification number: B01J37/0205 ,  B01J23/44 ,  B01J23/52 ,  B01J37/03 ,  C07C67/055 ,  C07C69/01 ,  C07C69/15

    Abstract: HIGHLY ACITIVE CATALYSTS FOR THE PREPARATION OF CATALYSTS SUITABLE FOR VINYL ESTER, E.G., VINYL ACETATE, PRODUCTION ARE PREPARED BY TREATING A CATALYST SUPPORT, SIMULTANIOUSLY OR IN EITHER SEQUENCE, WITH OR WITHOUT INTERMEDIATE DRYING, WITH: (A) A SOLUTON OF NOBLE METALS CONTAINING AT LEAST SALTS OF PALLADIUM AND GOLD, AND (B) A SOLUTION CONTAINING COMPOUNDS, E.G., GASES SUCH AS SODIUM HYDROXIDE, WHICH ARE ABLE TO REACT WITH THE NOBLE METAL SALTS OF THE SOLUTION (A) TO FORM WATER INSOLUBLE NOBLE METAL COMPOUNDS; IMPREGNATING THE CATALYST SUPPORT WITH SUCH QUANTITIES OF SOLUTIONS (A) AND (B) CORRESPONDING TO FROM 10 TO 110% OF THE ABSORPTIVE CAPACITY OF THE CATALYST SUPPORT FOR THESE SOLUTIONS; SUBJECTING THE IMPREGNATED CATALYST SUPPORT TO A TIME TEMPERATURE TREATMENT SUCH THAT AT LEAST 95% OF THE IMPREGNATED PALLADIUM AND GOLD ARE TRANSFORMED INTO WATER INSOLUBLE NOBLE METAL COMPOUNDS; REDUCING THE METAL COMPOUNDS TO THE NOBLE METAL WITH A REDUCING AGENT, E.G., ETHYLENE OR HYDRAZINE; REMOVING THE WATER-SOLUBLE COMPOUNDS WHICH ARE CONTAINED IN THE CATALYST BY WASHING BEFORE OR AFTER THE REDUCTION STEP; AND OPTIONALLY TREATING THE RESULTING CATALYST WITH AN ALKALI METAL CARBOXYLATE, E.G., ACETATE, BEFORE OR AFTER THE TREATMENT WITH THE REDUCING AGENT.

Patent Agency Ranking