Preparation of 1,1,2,3,3-pentafluoropropane
    23.
    发明授权
    Preparation of 1,1,2,3,3-pentafluoropropane 失效
    1,1,2,3,3-五氟丙烷的制备

    公开(公告)号:US5880317A

    公开(公告)日:1999-03-09

    申请号:US129879

    申请日:1993-09-30

    Applicant: M. Van Der Puy

    Inventor: M. Van Der Puy

    Abstract: The present invention relates to a process for the reduction dechlorination of ClCF.sub.2 CFClCF.sub.2 Cl to HCF.sub.2 CHFCF.sub.2 H comprising the step of contacting 1,2,3-trichloropentafluoroethane and H.sub.2 over a catalyst selected from the group consisting of palladium, platinum, ruthinium, rhodium, iridium and mixtures thereof under reaction conditions sufficent to produce a product stream containing 1,1,2,3,3-pentafluoropropane. The present invention further relates to a three step process wherein the ClCF.sub.2 CFClCF.sub.2 Cl to be reduced is synthesized by:(a) reacting HF with a compound of formula I: XCH.dbd.CYCH.sub.2 X, where X is H, Cl, or F, Y is H or Cl;to give a compound of formula II: CH.sub.2 XCFYCH.sub.2 X, where X and Y are the same as in the compound of formula I:(b) chlorinating the compound of formula II to give a compound of formula III: CCl.sub.3-m F.sub.m CFClCCl.sub.3-m F.sub.m where m is zero or 1, and(c) fluorinating the compound of formula III to give CClF.sub.2 CFClCF.sub.2 Cl.A composition of matter having the formula HCF.sub.2 CHFCF.sub.2 Cl is also disclosed.

    Abstract translation: 本发明涉及一种将ClCF 2 CFClCF 2 Cl还原成HCF 2 CHFCF 2 H的方法,包括使用选自钯,铂,铑,铑,铱及其混合物的催化剂使1,2,3-三氯五氟乙烷与H 2接触的步骤 在足以产生含有1,1,2,3,3-五氟丙烷的产物流的反应条件下。 本发明还涉及三步法,其中通过以下方法合成待还原的ClCF 2 CFClCF 2 Cl:(a)使HF与式I化合物反应:XCH = CYCH2X,其中X为H,Cl或F,Y为H或 Cl; 得到式II化合物:CH2XCFYCH2X,其中X和Y与式I化合物相同:(b)将式II化合物氯化得到式III化合物:CCl3-mFmCFClClCl3-mFm其中m为 0或1,和(c)氟化式III化合物得到CClF 2 CFClCF 2 Cl。 还公开了具有式HCF 2 FFCF 2 Cl的物质组合物。

    Continuous catalytic process for preparation of organic carbonates
    25.
    发明授权
    Continuous catalytic process for preparation of organic carbonates 失效
    用于制备有机碳酸酯的连续催化方法

    公开(公告)号:US5750759A

    公开(公告)日:1998-05-12

    申请号:US834986

    申请日:1997-04-07

    CPC classification number: B01J29/40 B01J27/08 C07C68/005 Y10S423/22

    Abstract: A process of contacting a feedstream containing dioxygen, carbon monoxide, ether, and alkanol, which can be vaporized under conditions of reaction, with a blend of catalysts which are heterogeneous to the feedstream, under conditions of reaction sufficient to form a mixture containing at least one higher molecular weight oxygenated organic compound is described. In another aspect, this invention relates to a blend of catalysts consisting of at least one molecular sieve, natural or synthetic, which has been found useful for hydrocarbon conversion reactions and a catalyst comprising a metal halide or a mixed metal halide supported on active carbon, which is effective in catalyzing direct formation of organic carbonates.

    Abstract translation: 使含有二氧化碳,一氧化碳,乙醚和烷醇的进料流在能够在反应条件下气化的原料流与在进料流中是异质的催化剂的共混物在足以形成至少含有至少 描述了一种较高分子量的含氧有机化合物。 另一方面,本发明涉及由至少一种已被发现可用于烃转化反应的分子筛,天然或合成的分子筛组成的催化剂和包含负载在活性炭上的金属卤化物或混合金属卤化物的催化剂, 其有效催化有机碳酸酯的直接形成。

    Metal cation-modified alkylation catalysts
    26.
    发明授权
    Metal cation-modified alkylation catalysts 失效
    金属阳离子改性烷基化催化剂

    公开(公告)号:US5739074A

    公开(公告)日:1998-04-14

    申请号:US453044

    申请日:1995-05-30

    Abstract: A catalytic composite of a refractory inorganic oxide whose bound surface hydroxyl group has reacted with a Friedel-Crafts type metal halide and whose acidity has been modified by the deposition of a monovalent metal cation, especially an alkali metal cation, or alkaline earth metal cation shows superior selectivity and a significantly decreased cracking tendency relative to similar catalysts without the monovalent metal or alkaline earth metal cation. The resulting alkylate from an isobutane-butene feedstock shows a substantial increase in research octane number relative to the alkylate formed by a similar catalyst which has not been so modified by an alkali or alkaline earth metal cation.

    Abstract translation: 结合表面羟基与Friedel-Crafts型金属卤化物反应并且酸性已经通过沉积一价金属阳离子,特别是碱金属阳离子或碱土金属阳离子而改性的耐火无机氧化物的催化复合物显示出 优异的选择性和相对于没有一价金属或碱土金属阳离子的类似催化剂显着降低的开裂趋势。 从异丁烷 - 丁烯原料得到的烷基化物相对于由未被碱金属或碱土金属阳离子改性的类似催化剂形成的烷基化物,研究辛烷值显着增加。

    Alkylation of aromatics using a metal cation-modified friedel-crafts
type catalyst
    27.
    发明授权
    Alkylation of aromatics using a metal cation-modified friedel-crafts type catalyst 失效
    使用金属阳离子改性的Friedel-Crafts型催化剂烷基化芳族化合物

    公开(公告)号:US5672797A

    公开(公告)日:1997-09-30

    申请号:US533576

    申请日:1995-09-25

    Inventor: Joseph A. Kocal

    Abstract: A process for the alkylation of aromatic compounds with an olefin, alcohol, or alkyl halide having from 1 to 24 carbon atoms comprising reacting in the liquid phase the aromatic and alkylating agent under alkylation conditions in the presence of a novel catalyst comprising: a) a refractory inorganic oxide, b) the reaction product of a first metal halide and bound surface hydroxyl groups of the refractory inorganic oxide, c) a second metal cation, and d) optionally a zerovalent third metal. The refractory inorganic oxide is selected from the group consisting of alumina, titania, zirconia, chromia, silica, boria, silica-alumina, and combinations thereof and the first metal halide is a fluoride, chloride, or bromide of aluminum. The second metal cation is selected from the group consisting of: monovalent metal cations in an amount from 0.0026 up to about 0.20 gram atoms per 100 grams refractory inorganic oxide for lithium, potassium, cerium, rubidium, silver, and copper, and from 0.009 to about 0.20 gram atoms for sodium; and alkaline earth metal cations in an mount from about 0.0013 up to about 0.01 gram atoms per 100 grams of refractory inorganic oxide for beryllium; strontium, and barium; and in an amount from about 0.004 up to about 0.1 gram atoms per 100 grams support for magnesium and calcium, or combinations thereof. The third metal is selected from the group consisting of platinum, palladium, nickel ruthenium, rhodium, osmium and iridium, and any combination thereof.

    Abstract translation: 一种用烯烃,醇或具有1至24个碳原子的烷基卤烷基化芳族化合物的方法,包括在烷烃化条件下在液相中使芳族和烷基化剂在新催化剂存在下反应,包括:a) 耐火无机氧化物,b)第一金属卤化物和耐火无机氧化物的结合表面羟基的反应产物,c)第二金属阳离子,和d)任选的零价第三金属。 耐火无机氧化物选自氧化铝,二氧化钛,氧化锆,氧化铬,二氧化硅,氧化硼,二氧化硅 - 氧化铝及其组合,第一种金属卤化物是铝的氟化物,氯化物或溴化物。 第二金属阳离子选自:一价金属阳离子,其量为0.0026至约0.20克原子/ 100克锂,钾,铈,铷,银和铜的难熔无机氧化物,和0.009至 钠约0.20克原子; 和碱土金属阳离子的量为约0.0013至约0.01克原子/ 100克用于铍的耐火无机氧化物; 锶和钡; 并且其量为约0.004至约0.1克原子/ 100克镁和钙的载体或其组合。 第三种金属选自铂,钯,镍钌,铑,锇和铱,以及它们的任何组合。

    Isoparaffin-olefin alkylation
    30.
    发明授权
    Isoparaffin-olefin alkylation 失效
    异链烷烃烯烃烷基化

    公开(公告)号:US5639932A

    公开(公告)日:1997-06-17

    申请号:US451806

    申请日:1995-05-26

    Abstract: A novel alkylation catalyst is described which is used in processes for alkylating olefin hydrocarbons with isoparaffin hydrocarbons to produce high octane alkylate products suitable for use as blending components of gasoline motor fuel. The novel catalyst comprises a mixture of a hydrogen halide, a sulfone and water and has suitable corrosion properties which permit its utilization in alkylation process systems. The novel alkylation catalyst is utilized in a novel process for alkylating olefin hydrocarbons with isoparaffin hydrocarbons.

    Abstract translation: 描述了一种新的烷基化催化剂,其用于使用异链烷烃烷基化烯烃的方法,以产生适合用作汽油发动机燃料混合组分的高辛烷基烷基化物产物。 新型催化剂包括卤化氢,砜和水的混合物,并且具有合适的腐蚀性质,其允许其在烷基化方法体系中的应用。 新型烷基化催化剂用于使用异链烷烃对烯烃进行烷基化的新方法。

Patent Agency Ranking