利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

130 条记录 (耗时 0.016 秒)

    Process for the chlornation of hydrocarbons
    91.
    发明授权
    Process for the chlornation of hydrocarbons 有权
    烃类氯化方法

    公开(公告)号：US06204418B1

    公开(公告)日：2001-03-20

    申请号：US09360974

    申请日：1999-07-27

    申请人： John E. Stauffer

    发明人： John E. Stauffer

    IPC分类号： C07C1708

    CPC分类号： C07C17/395 ,  C07C17/10 ,  C07C17/158 ,  C07C17/23 ,  C07C19/03 ,  C07C19/12 ,  C07C21/18

    摘要： A process is provided for the chlorination of aliphatic hydrocarbons containing 1 to 4 carbon atoms using hydrogen chloride as the source of chlorine. The process comprises reaction steps operated in tandem in separate zones. First, an unsaturated aliphatic fluorocarbon is oxychlorinated to give the corresponding saturated perchlorofluorocarbon and water, and second, the saturated perchlorofluorocarbon is reacted in the vapor phase with a hydrocarbon to produce the desired chlorinated hydrocarbon, hydrogen chloride and the unsaturated aliphatic fluorocarbon, third, hydrogen chloride and unsaturated aliphatic fluorocarbon are separated from the chlorinated hydrocarbon and recycled to the first step, and fourth, the chlorinated hydrocarbon is further purified by subjecting it to addition chlorination to convert traces of unsaturated aliphatic fluorocarbon to the corresponding saturated perchlorofluorocarbon, which is separated and recycled to the second step.

    摘要翻译： 提供了使用氯化氢作为氯源使氯化含有1至4个碳原子的脂族烃的方法。 该方法包括在分开的区域中串联操作的反应步骤。 首先，将不饱和脂肪族碳氟化合物进行氧氯化，得到相应的饱和全氯氟碳和水，其次，将饱和全氯氟烃与气相反应生成所需的氯代烃，氯化氢和不饱和脂肪族碳氟化合物，第三，氢 将氯化碳和不饱和脂肪族碳氟化合物与氯化烃分离并再循环至第一步，第四步是将氯化烃进一步纯化，将其加入氯化，将不饱和脂肪族碳氟化合物转化成相应的饱和全氯氟碳， 回收到第二步。

    Process for the chlorination of methane
    92.
    发明授权
    Process for the chlorination of methane 失效
    甲烷氯化处理

    公开(公告)号：US5099084A

    公开(公告)日：1992-03-24

    申请号：US297298

    申请日：1989-01-13

    申请人： John E. Stauffer

    发明人： John E. Stauffer

    IPC分类号： B01J27/10 ,  C07B61/00 ,  C07C17/00 ,  C07C17/37 ,  C07C19/03 ,  C07C19/041 ,  C07C21/12

    CPC分类号： C07C19/03

    摘要： A process is provided for the chlorination of methane using hydrogen chloride as a source of chlorine. The process includes reaction steps operated in tandem in separate zones first comprising the reaction of perchloroethylene with hydrogen chloride and oxygen in the presence of an oxychlorination catalyst to give hexachloroethane and water, and second comprising the vapor phase reaction of hexachloroethane with methane feedstock to produce chlorinated methane, perchloroethylene and hydrogen chloride.

    摘要翻译： 提供了使用氯化氢作为氯源氯化甲烷的方法。 该方法包括在分离的区域中串联操作的反应步骤，首先在氧氯化催化剂存在下包括全氯乙烯和氧气反应，得到六氯乙烷和水，其次包括六氯乙烷与甲烷原料的气相反应产生氯化 甲烷，全氯乙烯和氯化氢。

    Stabilized methylene chloride for high temperature applications
    93.
    发明授权
    Stabilized methylene chloride for high temperature applications 失效
    稳定的甲基氯化物用于高温应用

    公开(公告)号：US3670036A

    公开(公告)日：1972-06-13

    申请号：US3670036D

    申请日：1970-02-02

    申请人： DOW CHEMICAL CO

    发明人： VIVIAN THOMAS A

    IPC分类号： C07C17/42 ,  C07C17/40

    CPC分类号： C07C17/42 ,  C07C19/03

    摘要： Methylene chloride stabilized with 1-10 percent by weight of a nitroalkane, 0.1 to 5 percent by weight of an alkylene oxide and 0-10 percent of a dialkoxyalkane has been found to be especially good for high temperature applications even in continuous or intermittent contact with a reactive metal such as aluminum.

    摘要翻译： 已经发现用1-10重量％的硝基烷烃，0.1-5重量％的烯化氧和0-10％的二烷氧基烷烃稳定的二氯甲烷氯化物对于高温应用尤其有利，即使在连续或间歇接触时 一种活性金属如铝。

    Production of chloromethanes
    94.
    发明授权
    Production of chloromethanes 失效

    公开(公告)号：US3557230A

    公开(公告)日：1971-01-19

    申请号：US3557230D

    申请日：1969-05-05

    申请人： ALLIED CHEM

    发明人： KURTZ BRUCE E ,  FITCH ROBERT H

    IPC分类号： C07C17/361 ,  C07C17/00

    CPC分类号： C07C17/361 ,  C07C19/03

    摘要： THIS INVENTION RELATES TO THE PREPARATION OF CHLOROMETHANES FROM METHYL CHLOROMETHYL ETHER BY REACTING AT ELEVATED TEMPERATURES METHYL CHLOROMETHYL ETHER WITH HYDROGEN CHLORIDE IN THE PRESENCE OF AN ETHER-CLEAVING AGENT COMPRISING CHLOROSULFONIC ACID PREFERABLY HAVING DISSOLVED THEREIN A MINOR AMOUNT OF MERCURY. THE METHYL CHLOROMETHYL ETHER IS PREPARED BY REACTING ESSENTIALLY EQUIMOLAR PROPORTIONS OF METHYL ALCOHOL AND FORMALDEHYDE AND CONTACTING THIS MIXTURE IN COUNTERCURRENT RELATIONSHIP WITH HYDROGEN CHLORIDE IN A REACTION VESSEL AT ELEVATED TEMPERATURES.