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公开(公告)号:US4748291A
公开(公告)日:1988-05-31
申请号:US8877
申请日:1987-01-29
IPC分类号: C10G11/02 , B01J21/08 , B01J29/035 , B01J29/40 , C01B37/02 , C07C2/00 , C07C2/12 , C07C5/22 , C07C5/41 , C10G11/04 , C10G35/06 , C10G35/095 , C10G50/00 , C07C2/52
CPC分类号: C07C5/41 , B01J29/035 , B01J29/40 , C07C2/00 , C07C2/12 , C07C5/2206 , C10G35/095 , C07C2529/035
摘要: A catalytic treatment process is disclosed, which is carried out under pressure, in the presence of water, and with a molecular sieve catalyst which is TEA-silicate or silicalite previously stabilized by halogenation. This process may be applied to the aromatization or to the isomerization of hydrocarbon feedstocks, and to the oligomerization of olefins. The conversion rate of the process is very stable as a function of time.
摘要翻译: 公开了一种催化处理方法,其在压力下,在水的存在下,和分子筛催化剂进行,分子筛催化剂是TEA-硅酸盐或预先通过卤化稳定的硅沸石。 该方法可以应用于烃原料的芳构化或异构化,以及烯烃的低聚。 该过程的转换率作为时间的函数是非常稳定的。
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公开(公告)号:US4599473A
公开(公告)日:1986-07-08
申请号:US562650
申请日:1983-12-19
IPC分类号: C07C2/70 , B01J29/00 , C07B61/00 , C07C1/00 , C07C2/66 , C07C2/86 , C07C15/02 , C07C67/00 , C07C2/68
CPC分类号: C07C2/66 , C07C2/864 , C07C2529/035 , Y02P30/42
摘要: A process for the selective alkylation of monoalkylbenzene into dialkylbenzenes wherein the para isomer of the disubstituted product is present in a concentration greater than in a thermodynamic equilibrium is provided.The method comprises passing the monoalkylbenzene and an alkylating agent capable of methylation, ethylation or propylation through a reaction zone containing an unmodified crystalline silica catalyst of the silicalite type having the monoclinic symmetry.
摘要翻译: 提供了将单烷基苯选择性烷基化成二烷基苯的方法,其中二取代产物的对位异构体以大于热力学平衡的浓度存在。 该方法包括使单烷基苯和能够甲基化,乙基化或丙基化的烷基化剂通过含有具有单斜对称性的硅沸石型未改性的结晶二氧化硅催化剂的反应区。
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公开(公告)号:US4451686A
公开(公告)日:1984-05-29
申请号:US492527
申请日:1983-05-09
IPC分类号: B01J21/00 , B01J21/08 , B01J23/00 , B01J23/04 , B01J29/035 , B01J29/04 , C07B61/00 , C07C1/00 , C07C5/333 , C07C15/44 , C07C67/00 , C07C5/36
CPC分类号: B01J29/035 , B01J21/08 , C07C5/3332
摘要: Catalytic dehydrogenation of alkyl- or dialkyl- aromatic hydrocarbons such as ethylbenzene or ethyltoluene to vinyl aromatic hydrocarbons is achieved by passing the aromatic hydrocarbons on a crystalline silica which has been calcined under an inert atmosphere and which contains from about 0.05 to about 1 weight percent of an alkali metal oxide such as sodium oxide. In the preparation of the crystalline silica, limited washing of the crystalline silica precursor is performed to obtain an amount of alkali metal oxide remaining in the crystalline silica between about 0.05 and about 1 weight %.
摘要翻译: 将烷基或二烷基芳族烃如乙苯或乙基甲苯催化脱氢成乙烯基芳族烃是通过使芳族烃通过在惰性气氛下煅烧的结晶二氧化硅来实现的,其含有约0.05至约1重量%的 碱金属氧化物如氧化钠。 在制备结晶二氧化硅时,进行结晶二氧化硅前体的有限洗涤,以获得在结晶二氧化硅中剩余的碱金属氧化物的量为约0.05至约1重量%。
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公开(公告)号:US4317924A
公开(公告)日:1982-03-02
申请号:US143141
申请日:1980-04-23
申请人: Raymond M. Cahen
发明人: Raymond M. Cahen
IPC分类号: C07C51/487 , C07C51/42
CPC分类号: C07C51/487
摘要: A process for purifying crude terephthalic acid is disclosed which comprises treating a solution of crude terephthalic acid in an aqueous solution of a water-soluble heavy metal salt wherein the heavy metal is cobalt, manganese, iron or nickel under elevated pressure and at elevated temperature in the presence of a supported noble metal catalyst with nitrogen gas or a gas-mixture of nitrogen and hydrogen. The treated solution is then separated from the catalyst and purified crystalline terephthalic acid is recovered by crystallization and separation from the mother liquor wherein impurities and the heavy metal salts are retained. The process is especially useful for directly treating crude terephthalic acid obtained in an oxidation process in the presence of a heavy-metal-salt-catalyst.
摘要翻译: 公开了一种纯化粗对苯二甲酸的方法,其包括在高压和升高的温度下处理粗对苯二甲酸在水溶性重金属盐的水溶液中的溶液,其中重金属是钴,锰,铁或镍, 存在用氮气负载的贵金属催化剂或氮气和氢气的气体混合物。 然后将处理的溶液与催化剂分离,并通过结晶和从母液中分离纯化的结晶对苯二甲酸,其中保留杂质和重金属盐。 该方法特别可用于在重金属盐催化剂存在下直接处理在氧化过程中获得的粗对苯二甲酸。
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公开(公告)号:US5171331A
公开(公告)日:1992-12-15
申请号:US583578
申请日:1990-09-17
CPC分类号: C07C2/12 , C10L1/023 , C07C2529/035
摘要: A process for production of gasoline comprising oligomerizing a C.sub.2 -C.sub.6 olefin containing feedstock over an intermediate pore size siliceous crystalline molecular sieve catalyst. The catalyst may take the form of silicalite, halogen stabilized silicalite, or a zeolite. Water may be supplied to the oligomerization reaction. The product from the oligomerization reaction is then subjected to an etherification reaction in the presence of methanol over an acid cation exchange catalyst to provide a gasoline product of enhanced octane number.
摘要翻译: 一种生产汽油的方法,其包括在中等孔径的硅质结晶分子筛催化剂上使含C2-C6烯烃的原料低聚。 催化剂可以采用硅沸石,卤素稳定的硅沸石或沸石的形式。 可以向低聚反应中供应水。 然后将低聚反应的产物在甲酸存在下通过酸性阳离子交换催化剂进行醚化反应,得到增强的辛烷值的汽油产物。
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公开(公告)号:US4781906A
公开(公告)日:1988-11-01
申请号:US562651
申请日:1983-12-19
IPC分类号: B01J29/035 , B01J29/04 , B01J29/70 , C01B33/12 , C01B37/02 , C07C1/00 , C07C2/66 , C07C5/27 , C07C15/02 , C07C67/00 , C01B33/26
CPC分类号: C01B37/02 , B01J29/035 , B01J29/70 , C07C2/66 , B01J2229/36 , C07C2529/035
摘要: A novel crystalline silica composition having a silica to alumina atomic ratio not lower than 80 and having a certain specific X-ray diffraction pattern after calcination in air for at least 3 hours at a temperature of at least 500.degree. C.
摘要翻译: 一种新型的二氧化硅与氧化铝原子比不低于80的结晶二氧化硅组合物,并且在至少500℃的温度下在空气中煅烧至少3小时后具有一定的特定X射线衍射图。
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公开(公告)号:US4306105A
公开(公告)日:1981-12-15
申请号:US189429
申请日:1980-09-22
IPC分类号: C08F4/00 , B01J21/04 , B01J27/08 , B01J35/10 , C07B61/00 , C07C1/00 , C07C2/10 , C07C2/22 , C07C11/02 , C07C67/00 , C08F4/06 , C08F4/12 , C08F4/14 , C08F10/00 , C08F10/10 , C08F110/10 , C07C2/02
CPC分类号: C07C2/10 , B01J21/04 , C08F110/10 , C07C2521/04
摘要: A process for selectively producing liquid polyisobutene contacting a feed stream containing mixed butenes with a dry chlorinated alumina catalyst at a temperature of from about -15.degree. to about 50.degree. C. wherein the chlorinated alumina contains from about 2 to 20% by weight of chlorine and the alumina has a purity of at least 99% and a surface area greater than 150 m.sup.2 /g with at least 10% of the pores having a mean diameter larger than 200A and recovering polyisobutenes having a molecular weight between about 280 and 4000.
摘要翻译: 在约-15℃至约50℃的温度下,选择性地生产含有混合丁烯的进料流与干氯化氧化铝催化剂接触的液体聚异丁烯的方法,其中氯化氧化铝含有约2至20重量%的氯 并且所述氧化铝具有至少99%的纯度和大于150m 2 / g的表面积,并且至少10%的孔的平均直径大于200A并回收分子量在约280和4000之间的聚异丁烯。
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公开(公告)号:US4229361A
公开(公告)日:1980-10-21
申请号:US929539
申请日:1978-07-31
申请人: Raymond M. Cahen
发明人: Raymond M. Cahen
CPC分类号: B01J31/0238 , B01J23/755 , C11C3/123 , B01J2231/645
摘要: A nitrogen-containing nickel catalyst adapted for catalyzing partial and selective hydrogenation of natural oils is disclosed, which comprises nickel and such an amount of a nitrogen-containing basic compound which is equivalent to from about 5 to about 40 atoms of nitrogen per 100 atoms of nickel.The catalyst is effective in catalyzing the partial hydrogenation of natural oils in such a manner that poly-unsaturated compounds are selectively hydrogenated and the formation of saturated compounds, transisomers, and conjugated dienes is limited and liquid hydrogenation products can be obtained. The catalyst is prepared by treating a nickel catalyst with the nitrogen-containing compound at elevated temperatures optionally under hydrogen.
摘要翻译: 公开了一种适用于催化天然油部分和选择性氢化的含氮镍催化剂,其包含镍和一定量的含氮碱性化合物,其相当于每100个原子的约5-约40个氮原子 镍。 催化剂有效地催化天然油的部分氢化,使得多不饱和化合物被选择性氢化并且饱和化合物,转异构体和共轭二烯的形成是有限的,并且可以获得液体氢化产物。 催化剂通过在含氢化合物的高温下任选地在氢气下处理镍催化剂来制备。
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9.
公开(公告)号:US5470456A
公开(公告)日:1995-11-28
申请号:US71435
申请日:1993-06-01
CPC分类号: C10G25/003
摘要: The present invention relates to a process for removing carbonyl sulfide from a liquid hydrocarbon feedstock, said process comprising the steps of (a) passing said hydrocarbon feedstock over an absorbent material comprising nickel deposited on a support material wherein nickel is present as both nickel oxide and metallic nickel and wherein the absorbent material has been conditioned by passing an inert gas flow containing a minor amount of propylene; and (b) recovering a liquid hydrocarbon stream having substantially reduced carbonyl sulfide content.
摘要翻译: 本发明涉及从液体烃原料中除去羰基硫的方法,所述方法包括以下步骤:(a)使所述烃原料通过沉积在载体材料上的包含镍的吸收材料上,其中镍以氧化镍和 金属镍,其中通过使含有少量丙烯的惰性气流通过吸收材料进行调理; 和(b)回收具有显着降低的羰基硫含量的液态烃流。
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10.
公开(公告)号:US4830735A
公开(公告)日:1989-05-16
申请号:US103239
申请日:1987-09-30
IPC分类号: C07C7/148
CPC分类号: C07C7/148
摘要: The present invention relates to a process for removing carbonyl sulfide from a liquid hydrocarbon feedstock, said process comprising the steps of (a) passing said hydrocarbon feedstock over an absorbent material comprising nickel deposited on a support material wherein nickel is present as both nickel oxide and metallic nickel and wherein the absorbent material has been conditioned by passing an inert gas flow containing a minor amount of propylene; and (b) recovering a liquid hydrocarbon stream having a substantially reduced carbonyl sulfide content.
摘要翻译: 本发明涉及从液体烃原料中除去羰基硫的方法,所述方法包括以下步骤:(a)使所述烃原料通过沉积在载体材料上的包含镍的吸收材料上,其中镍以氧化镍和 金属镍,其中通过使含有少量丙烯的惰性气流通过吸收材料进行调理; 和(b)回收具有显着降低的羰基硫含量的液态烃流。
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