利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

192 条记录 (耗时 0.012 秒)

    Process for preparing a chromium-promoted iron oxide catalyst
    91.
    发明授权
    Process for preparing a chromium-promoted iron oxide catalyst 失效
    制备铬 - 促进氧化镍催化剂的方法

    公开(公告)号：US3711426A

    公开(公告)日：1973-01-16

    申请号：US3711426D

    申请日：1970-02-26

    申请人： TOPSOE H

    发明人： JORGENSEN M

    IPC分类号： B01J23/86 ,  B01J11/22 ,  B01J11/74

    CPC分类号： B01J23/862

    摘要： HIGH TEMPERATURE SHIFT CATALYSTS COMPRISING IRON OXIDE ARE PREPARED FROM SOLUTIONS OF SOLUBLE IRON SALTS BY PRECIPITATION WITH AN ORGANIC ACID REAGENT, SUCH AS OXALIC ACID, GIVING PRECIPITATES IN A VERY COARSE, EASILY-WASHED FORM. TREATMENT OF THE WELL-WASHED PRECIPITATE WITH ALKALLI REGENERATES THE ORGANIC ACID REAGENT AND GIVES A HIGHLY FLOCCULENT IRON OXIDE OF HIGH SPECIFIC SURFACE AND EXTREMELY LOW SULPHUR CONTENT. THIS IS PARTICULARLY SUITABLE FOR PROMOTION WITH PBO, WHICH IS NOTED AS BEING VERY SENSITIVE TO SULPHUR CONTAMINATION.

    Process for the preparation of a non-pyrophoric nickel skeleton catalyst
    92.
    发明授权
    Process for the preparation of a non-pyrophoric nickel skeleton catalyst 失效
    制备非磷酸镍骨架催化剂的方法

    公开(公告)号：US3691103A

    公开(公告)日：1972-09-12

    申请号：US3691103D

    申请日：1970-03-26

    申请人： MAGYAR TUDOMANYOS AKADEMIA

    发明人： CSUROS ZOLTAN ,  PETRO JOZSEF ,  TUNGLER ANTAL ,  MATHE TIBOR ,  BEKASSY SANDOR

    IPC分类号： B01J25/00 ,  B01J25/02 ,  B01J11/22

    CPC分类号： B01J25/02 ,  B01J25/00

    摘要： A process for the preparation of non-pyrophoric nickel skeleton catalysts, in which 30 to 80 percent by weight of metallic zinc, 60 to 20 percent by weight of metallic nickel and 0 to 40 percent by weight of one or more further metals soluble in alkaline solutions are heat-treated at temperatures in the range of 880* to 1,120* C for at least 3 minutes, preferably for 10 to 30 minutes, with simultaneous protection of the surface of the melt against oxidation, the melt thus obtained is cooled at a rate not exceeding 120* /minute in the average, the alloy thus obtained is powdered or granulated, and the powdered or granulated alloy is treated with an alkali hydroxide solution of 10 - 50 percent by weight at temperatures not exceeding the boiling point of the alkaline solution.

    摘要翻译： 一种制备非自发性镍骨架催化剂的方法，其中金属锌含量为30-80％，金属镍为60％至20％，可溶于碱金属的另外一种或多种金属为0-40％ 将溶液在880℃至1120℃的温度下热处理至少3分钟，优选10至30分钟，同时保护熔体表面免于氧化，将所得熔体冷却至 平均速率不超过120度/分钟，由此获得的合金粉末或造粒，并且在不超过碱性沸点的温度下用10-50重量％的碱金属氢氧化物溶液处理粉末状或粒状合金 解。

    Novel anthraquinone hydrogenation catalyst
    97.
    发明授权
    Novel anthraquinone hydrogenation catalyst 失效
    新型氢化氢加氢催化剂

    公开(公告)号：US3635841A

    公开(公告)日：1972-01-18

    申请号：US3635841D

    申请日：1969-06-16

    申请人： ENGELHARD MIN & CHEM

    发明人： KEITH CARL D ,  CORNELY KURT W ,  LEE NATHAN D

    IPC分类号： C07C50/18 ,  B01J21/04 ,  B01J23/44 ,  B01J35/10 ,  B01J37/02 ,  C01B15/023 ,  C07B61/00 ,  C07C45/00 ,  C07C67/00 ,  B01J11/08 ,  B01J11/22

    CPC分类号： B01J21/04 ,  B01J23/44 ,  B01J35/10 ,  B01J37/0215 ,  C01B15/023

    摘要： A novel hydrogenation catalyst, especially useful for the catalytic hydrogenation of an anthraquinone working compound in the process for producing hydrogen peroxide, is described containing at least 0.05 percent by weight of metallic palladium dispersed on alumina supporting spheres, wherein the major crystalline structure of the alumina spheres is in the form of delta-alumina, theta-alumina, or mixtures of delta- and thetaaluminas and is substantially free of alpha-alumina, gammaalumina or alpha-alumina monohydrate, wherein the alumina spheres have substantially no pores larger than about 0.06 micron, a BET surface area of over 20 m.2/gm., and wherein the palladium metal penetration into the pores of the supporting alumina surface is no more than about 40 or 50 microns.

    摘要翻译： 描述了一种新型氢化催化剂，其特别可用于在制备过氧化氢的方法中对蒽醌工作化合物的催化氢化，其含有至少0.05重量％的分散在氧化铝载体球上的金属钯，其中氧化铝的主要晶体结构 球形为δ-氧化铝，θ-氧化铝或δ-和θ-氧化铝的混合物的形式，并且基本上不含α-氧化铝，γ-氧化铝或α-氧化铝一水合物，其中氧化铝球体基本上没有孔隙较大 超过约0.06微米的BET表面积超过20m 2 / gm，并且其中钯金属渗透到支撑氧化铝表面的孔中不超过约40或50微米。

    Preparation of a catalytic composite containing a germanium component
    99.
    发明授权
    Preparation of a catalytic composite containing a germanium component 失效
    含有锗成分的催化复合材料的制备

    公开(公告)号：US3567656A

    公开(公告)日：1971-03-02

    申请号：US3567656D

    申请日：1969-05-28

    申请人： UNIVERSAL OIL PROD CO

    发明人： MITSCHE ROY T

    IPC分类号： C10G35/06 ,  B01J23/14 ,  B01J23/62 ,  B01J11/08 ,  B01J11/22

    CPC分类号： B01J23/14 ,  B01J23/624

    摘要： A GERMANIUM COMPONENT IS UNIFORMLY DISPERSED THROUGHOUT A POROUS, HIGH SURFACE AREA CARRIER MATERIAL BY THE STEPS OF: FIRST, REDUCING GERMANIUM DIOXIDE WITH HYDROGEN; SECOND, DISSOLVING THE RESULTING REDUCED MATERIAL IN AN AQUEOUS SOLUTIONOF CHLORINE TO FORM A SOLUTION THEREOF; THIRD, IMPREGNATING A HIGH SURFACE AREA, POROUS CARRIER MATERIAL WITH THE RESULTING SOLTUION; AND, FINALLY DRYING AND CALCINING THE RESULTING IMPREGGNATED CARRIER MATERIAL. KEY FEATURE OF THIS METHOD OF PREPARATION INVOLVES THE USE OF THIS SOLUTION OF THE REDUCED GERMANIUM COMPOUND IN CHLORINE WATER TO IMPREGNATE THE CARRIER MATERIAL, THEREBY ACHIEVING UNIFORM DISPERSION OF THE GERMANIUM COMPONENT IN THE CARRIER MATERIAL.