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1.发明授权
公开(公告)号：US4389338A
公开(公告)日：1983-06-21
申请号：US331576
申请日：1981-12-17
IPC分类号： B01J23/62 , B01J23/66 , B01J37/08 , C07B61/00 , C07D301/10 , C07D303/04 , B01J23/04 , B01J23/08 , B01J23/50
CPC分类号： B01J23/66 , C07D301/10 , Y02P20/52
摘要： In a method for the manufacture of a silver catalyst having silver deposited on a porous inorganic carrier in conjunction with at least one reaction accelerator selected from the group consisting of alkali metals and thallium to be used for the production of ethylene oxide, the improvement comprising the steps of depositing silver on the porous inorganic carrier in conjunction with at least one reaction accelerator selected from the group consisting of alkali metals and thallium thereby preparing an activated silver catalyst and subsequently subjecting said silver catalyst to a high-temperature treatment at a temperature in the range of 550.degree. to 950.degree. C. in an inert gaseous atmosphere having an oxygen concentration of not more than 3 volume percent in the final step.
摘要翻译： 在制备具有沉积在多孔无机载体上的银的银催化剂的方法中，与至少一种选自用于生产环氧乙烷的碱金属和铊的反应促进剂相结合，其改进包括 连同至少一种选自碱金属和铊的反应促进剂结合在多孔无机载体上沉积银的步骤，由此制备活化的银催化剂，随后在所述银催化剂的温度下对所述银催化剂进行高温处理 在最终步骤中在氧浓度不大于3体积％的惰性气体气氛中，在550℃至950℃的范围内。
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2.发明授权Process for preparing silver-supported catalyst for the production of ethylene oxide 失效制备用于生产环氧乙烷的银负载催化剂的方法
公开(公告)号：US4248740A
公开(公告)日：1981-02-03
申请号：US920117
申请日：1978-06-28
IPC分类号： B01J23/50 , B01J23/66 , B01J37/06 , C07B61/00 , C07D301/10 , C07D303/04 , B01J23/48
CPC分类号： B01J23/66 , B01J23/50 , C07D301/10 , Y02P20/52
摘要： An improved process for preparing a silver-supported catalyst for use in the production of ethylene oxide by catalytic vapor phase oxidation of ethylene with molecular oxygen, which comprises impregnating a porous inorganic carrier with a solution of a silver compound containing a reducing compound, subjecting the impregnated product to a reducing treatment at 50.degree. to 200.degree. C. to disperse and deposit metallic silver on the external surface of the carrier and the internal surfaces of its pores, washing the silver-supported carrier with water, a lower alcohol or both, drying the washed product at a temperature of 50.degree. to 150.degree. C., impregnating the dried product with a solution containing a promoter, and evaporating the liquid ingredients.
摘要翻译： 一种制备用于通过乙烯与分子氧的催化气相氧化制备环氧乙烷的银负载催化剂的改进方法，其包括用含有还原化合物的银化合物溶液浸渍多孔无机载体， 将浸渍的产品在50℃至200℃下进行还原处理，以将金属银分散并沉积在载体的外表面和其孔的内表面上，用水，低级醇或两者洗涤银负载的载体， 在50至150℃的温度下干燥洗涤的产品，用含促进剂的溶液浸渍干燥产物，蒸发液体成分。
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公开(公告)号：US4368144A
公开(公告)日：1983-01-11
申请号：US218700
申请日：1980-12-22
IPC分类号： B01J23/66 , C07D301/10 , B01J21/04 , B01J23/04
CPC分类号： C07D301/10 , B01J23/66 , Y02P20/52
摘要： A silver catalyst for the production of ethylene oxide, comprising a granular .alpha.-alumina carrier having a sodium content of not more than 0.07% by weight and a specific surface area within the range of from 0.5 to 5 m.sup.2 /g, a finely divided metallic silver deposited on said carrier in an amount within the range of from 5 to 25% by weight based on the total catalyst, and at least one member selected from the group consisting of alkali metals of Atomic Numbers 19 to 55 and alkali metal compounds said at least one member being in an amount within the range of from 0.001 to 0.05 gram equivalent weight per kilogram of the complete catalyst.
摘要翻译： 一种用于生产环氧乙烷的银催化剂，其包含钠含量不超过0.07重量％，比表面积在0.5-5平方米/克范围内的颗粒状α-氧化铝载体，细碎的金属 以所述总催化剂为基准，以5-25重量％的范围内沉积在所述载体上的银，以及选自原子数19至55的碱金属和碱金属化合物中的至少一种，所述碱金属化合物 至少一种成分的量为每千克完全催化剂0.001至0.05克当量。
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公开(公告)号：US4376209A
公开(公告)日：1983-03-08
申请号：US188464
申请日：1980-09-18
IPC分类号： B01J23/00 , C07D301/10 , C07D301/32
CPC分类号： C07D301/10 , Y02P20/52
摘要： A process for the production of ethylene oxide by the vapor-phase catalytic oxidation of ethylene with molecular oxygen, which process comprises passing a mixed gas containing ethylene and molecular oxygen through a catalyst bed filled with a silver catalyst and subsequently passing the resultant reaction product gas through a cooling zone filled with a particulate material containing a substance capable of inhibiting the isomerization of ethylene oxide to acetaldehyde carrying at least one metal selected from the group consisting of sodium, potassium, rubidium, cesium, calcium, strontium, barium and thallium or a compound of said metal to be carried on an inert refractory particulate material.
摘要翻译： 通过乙烯与分子氧的气相催化氧化生产环氧乙烷的方法，该方法包括使含有乙烯和分子氧的混合气体通过填充有银催化剂的催化剂床，然后使所得反应产物气体 通过填充有含有能够抑制环氧乙烷异构化的物质至少含有选自钠，钾，铷，铯，钙，锶，钡和铊中的至少一种金属的乙醇的颗粒材料的冷却区域或 所述金属的化合物将承载在惰性耐火颗粒材料上。
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公开(公告)号：US4039561A
公开(公告)日：1977-08-02
申请号：US502848
申请日：1974-09-03
IPC分类号： C07D301/06 , B01J23/00 , B01J23/66 , B01J23/68 , C07B61/00 , C07D301/10 , C07D303/04
CPC分类号： B01J23/681 , B01J23/66 , C07D301/10 , Y02P20/52
摘要： A process for preparing ethylene oxide by the catalytic vapor phase oxidation of ethylene with molecular oxygen in the presence of a catalytic composition whose constituent metallic elements and atomic ratio are represented by the general formulaAg.sub.a Ba.sub.b X.sub.c Tl.sub.d K.sub.e Cs.sub.f O.sub.gwherein X represents at least one metallic element of the group consisting of tin and antimony, a, b, d, e, f and g are number of atoms of silver, barium, thallium, potassium, cesium and oxygen, respectively, and c is the sum of the number of atoms of at least one metallic element of the group consisting of tin and antimony; and when a is 100, b is a number from 0 to 100, c is a number from 0.001 to 0.15, d is a number from 0 to 0.1, e is a number from 0 to 0.1, f is a number from 0 to 0.1, with the proviso that the relationship 0
摘要翻译： 在催化剂组合物存在下，用分子氧催化气相氧化乙烯制备环氧乙烷的方法，其组成金属元素和原子比由通式AgaBabXcTldKeCfOg表示，其中X代表至少一种金属元素， 锡和锑的a，b，d，e，f和g分别是银，钡，铊，钾，铯和氧的原子数，c是至少一种金属的原子数之和 锡和锑组成元素; 当a为100时，b为0〜100的数，c为0.001〜0.15的数，d为0〜0.1的数，e为0〜0.1的数，f为0〜0.1的数 ，条件是满足关系0
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