Fluorine-containing silane compounds
    72.
    发明授权
    Fluorine-containing silane compounds 失效
    含氟硅烷化合物

    公开(公告)号:US4927950A

    公开(公告)日:1990-05-22

    申请号:US709681

    申请日:1985-03-08

    CPC分类号: C07F7/182

    摘要: A fluorine-containing silane compound of the formula: ##STR1## wherein R.sub.f is a fluorine-containing C.sub.4 --C.sub.18 aliphatic group, R.sup.1 is hydrogen or a C.sub.1 -C.sub.4 alkyl group, A is a straight or branched C.sub.1 -C.sub.12 alkylene group or a group of the formula: ##STR2## in which R.sup.2 is hydrogen or a C.sub.1 -C.sub.3 acyl group, R.sup.3 is a C.sub.1 -C.sub.6 acyl group, A' is a C.sub.2 -C.sub.8 alkylene group, A" is a C.sub.1 -C.sub.4 alkylene group, and Q is --CO-- or --SO.sub.2 --, B is a group of the formula: ##STR3## in which R.sup.4 and R.sup.5 are each a straight or branched C.sub.2 or C.sub.3 alkylene group, and p is 2 or 3, X is chlorine or a C.sub.1 -C.sub.3 alkoxy group, X' is chlorine or a C.sub.1 -C.sub.3 alkyl or alkoxy group, a phenyl group or a glycidyl group, m is 0 or 1, and n is an integer of 0 to 40, which modifies surface characteristics of a solid substrate.

    摘要翻译: 一种下式的含氟硅烷化合物:其中R f是含氟C 4 -C 18脂族基,R 1是氢或C 1 -C 4烷基,A是直链或支链C 1 -C 12亚烷基 基团或下式的基团:其中R 2是氢或C 1 -C 3酰基,其中R 3是C 1 -C 6酰基,A'是C 2 -C 8亚烷基,A' '是C1-C4亚烷基,Q是-CO-或-SO2-,B是下式的基团:(CH2)3S(CH2)p,CH2COO,CH2CH2O,COR4S(CH2)p, R4SR5COO(CH2)3或+ TR 其中R4和R5分别是直链或支链的C2或C3亚烷基,p是2或3,X是氯或C1-C3烷氧基,X'是氯或 C 1 -C 3烷基或烷氧基,苯基或缩水甘油基,m为0或1,n为0〜40的整数,其改性固体基材的表面特性。

    Process for removal of phenolic inhibitors from polymerizable conjugated
olefin
    75.
    发明授权
    Process for removal of phenolic inhibitors from polymerizable conjugated olefin 失效
    从可聚合的共轭烯烃中除去酚类抑制剂的方法

    公开(公告)号:US4547619A

    公开(公告)日:1985-10-15

    申请号:US685665

    申请日:1984-12-24

    申请人: Zaida Diaz

    发明人: Zaida Diaz

    CPC分类号: C07C7/12

    摘要: Method for removal of phenolic polymerization inhibitors from liquid conjugated olefin hydrocarbon by contacting said liquid hydrocarbon with a sorbent material comprising particulate acidified active carbon which sorbent has previously been oxidized by contact with a highly acidic oxidizing fluid. Optionally, after contact with the highly acidic oxidizing fluid the sorbent may be further treated in an alkaline environment with compounds of at least one of alkali metals, alkaline earth metals and ammonia. The sorbent material may be regenerated by heating, or by passing a heated non-oxidizing gas e.g., superheated stream there through.

    摘要翻译: 通过使所述液态烃与包含颗粒酸化的活性炭的吸附剂材料接触来从液体共轭烯烃中除去酚类聚合抑制剂的方法,吸附剂预先通过与高度酸性的氧化性流体接触而被氧化。 任选地,在与高酸性氧化流体接触之后,吸附剂可以在碱性环境中用碱金属,碱土金属和氨中的至少一种的化合物进一步处理。 吸附剂材料可以通过加热或通过使加热的非氧化性气体例如过热流通过来再生。

    Inhibiting polymerization of vinylaromatic monomers
    76.
    发明授权
    Inhibiting polymerization of vinylaromatic monomers 失效
    抑制乙烯基芳族单体的聚合

    公开(公告)号:US4532011A

    公开(公告)日:1985-07-30

    申请号:US585801

    申请日:1984-03-02

    申请人: Howard A. Colvin

    发明人: Howard A. Colvin

    CPC分类号: C07C7/20

    摘要: Vinylaromatic compounds are stabilized against undesired polymerization by adding to the vinylaromatic compounds small amounts of zinc or nickel salts of dialkyl dithiocarbamates, specifically p-diisopropenylbenzene can be stabilized by the use of zinc dibutyldithiocarbamate.

    摘要翻译: 乙烯基芳族化合物通过向乙烯基芳族化合物中加入少量的二烷基二硫代氨基甲酸盐的锌盐或镍盐来稳定,防止不期望的聚合,特别是通过使用二丁基二硫代氨基甲酸锌来稳定对二异丙烯基苯。

    Process for the synthesis and purification of diisopropenylbenzene
    77.
    发明授权
    Process for the synthesis and purification of diisopropenylbenzene 失效
    二异丙烯基苯的合成和纯化方法

    公开(公告)号:US4528413A

    公开(公告)日:1985-07-09

    申请号:US586166

    申请日:1984-03-05

    CPC分类号: C07C15/44 C07C7/163

    摘要: Diisopropenylbenzene is a monomer that can be used in the preparation of many useful polymers and is also a chemical intermediate that can be employed in a number of chemical processes. Diisopropenylbenzene is normally synthesized by the dehydrogenation of diisopropylbenzene. Unfortunately in this dehydrogenation process a number of olefinic impurities are produced as by-products. This invention discloses a process for the separation of diisopropenylbenzene from these impurities and for recycling some of the impurities. In one embodiment of this invention this process comprises: (1) dehydrogenating diisopropylbenzene to form a dehydrogenation mixture containing diisopropenylbenzene and organic impurities, (2) continuously distilling said dehydrogenation mixture to separate said diisopropenylbenzene from said organic impurities, (3) fully hydrogenating said organic impurities to form a mixture of regenerated diisopropylbenzene and saturated organic impurities, and (4) fractionally distilling said mixture of regenerated diisopropylbenzene and saturated organic impurities under conditions sufficient to separate said regenerated diisopropylbenzene from said saturated organic impurities. The regenerated diisopropylbenzene can then be recycled for dehydrogenation with fresh diisopropylbenzene in the first step of the above described process.

    摘要翻译: 二异丙烯基苯是可用于制备许多有用聚合物的单体,也是可用于多种化学方法的化学中间体。 二异丙烯基苯通常通过二异丙基苯的脱氢合成。 不幸的是,在该脱氢方法中,产生许多烯属杂质作为副产物。 本发明公开了一种从这些杂质中分离二异丙烯基苯并再循环一些杂质的方法。 在本发明的一个实施方案中,该方法包括:(1)使二异丙苯脱氢以形成含有二异丙烯基苯和有机杂质的脱氢混合物,(2)连续蒸馏所述脱氢混合物以从所述有机杂质中分离出所述二异丙烯基苯,(3)将所述有机物完全氢化 杂质以形成再生的二异丙基苯和饱和有机杂质的混合物,和(4)在足以将所述再生的二异丙基苯与所述饱和有机杂质分离的条件下,将再生的二异丙基苯和饱和有机杂质的混合物分馏。 然后可以在上述方法的第一步中将再生的二异丙基苯再循环用于用新鲜的二异丙基苯进行脱氢。

    Alkylaromatic hydrocarbon dehydrogenation process
    78.
    发明授权
    Alkylaromatic hydrocarbon dehydrogenation process 失效
    烷基芳烃脱氢工艺

    公开(公告)号:US4479025A

    公开(公告)日:1984-10-23

    申请号:US443722

    申请日:1982-11-22

    申请人: Tamotsu Imai

    发明人: Tamotsu Imai

    CPC分类号: C07C15/46

    摘要: A hydrocarbon conversion process is disclosed for the dehydrogenation of alkylaromatic hydrocarbons such as ethylbenzene or ethyltoluene. A subatmospheric pressure is maintained in the reaction zone by the use of two separate compressors. The first compressor pressurizes the vapor phase reactor effluent prior to the final indirect heat exchange step(s) used to partially condense this stream. The second compressor maintains the vapor-liquid separator which receives the partially condensed reactor effluent stream at a subatmospheric pressure. This facilitates operation of the reactor at a subatmospheric pressure.

    摘要翻译: 公开了烃转化方法用于烷基芳族烃如乙苯或乙基甲苯的脱氢。 通过使用两个单独的压缩机在反应区域内保持低于大气压。 在用于部分冷凝该流的最终间接热交换步骤之前,第一压缩机对气相反应器流出物进行加压。 第二压缩机保持气 - 液分离器,其在低于大气压的压力下接收部分冷凝的反应器流出物流。 这有利于在低于大气压的压力下操作反应器。

    Process for producing tertiary-butylstyrene
    80.
    发明授权
    Process for producing tertiary-butylstyrene 失效
    叔丁基苯乙烯的制备方法

    公开(公告)号:US4291184A

    公开(公告)日:1981-09-22

    申请号:US116658

    申请日:1980-01-29

    CPC分类号: B01J27/1853 C07C5/48

    摘要: This invention provides an improved oxydehydrogenation process for the production of tertiary-butylstyrene which involves the contacting of a vapor phase mixture of tertiary-butylethylbenzene and oxygen with a novel coprecipitated nickel-zirconium phosphate or nickel-zirconium-cerium phosphate catalyst composition.The tertiary-butylstyrene is produced with a high conversion selectivity, and concomitantly there is little or no dialkenylbenzene byproducts produced.

    摘要翻译: 本发明提供了一种用于生产叔丁基苯乙烯的改进的氧化脱氢方法,其涉及叔丁基乙基苯和氧气的气相混合物与新型共沉淀的镍 - 磷酸锆或镍 - 锆 - 铈 - 磷酸催化剂组合物的接触。 叔丁基苯乙烯以高转化率选择性生产,同时产生很少或没有二烯基苯副产物。