PROCESS FOR PRODUCING HYDROCHLOROMETHANES
    1.
    发明公开
    PROCESS FOR PRODUCING HYDROCHLOROMETHANES 失效
    生产盐酸甲烷的方法

    公开(公告)号:EP0536420A1

    公开(公告)日:1993-04-14

    申请号:EP92909542.0

    申请日:1992-04-23

    摘要: A process for producing hydrochloromethanes such as chloroform at high selectivity in high yields by reducing polychloromethanes such as carbon tetrachloride in the presence of a reduction catalyst. It is essential to conduct reduction in liquid phase so as to inhibit effectively the concomitant formation of impurities such as a polymer which deactivates the catalyst, whereby the catalyst can fully develop its high selectivity and activity. As the catalyst, at least one element is suitably selected among the group 8, 9 and 10 elements of the Periodic Table, such as ruthenium, rhodium, palladium or platinum. Also suitably usable is a catalyst which is based on any of the above elements and further contains at least one of the group 11 elements such as copper, silver or gold. When the liquid-phase reduction is to be conducted continuously, the use of a fixed bed is desirable, a dropping bed being particularly desirable. This process is also highly valuable as a process for converting carbon tetrachloride, the use of which is legally regulated from the viewpoint of the preservation of the global environment, into, for example, chloroform, which is useful as the starting material of various fluorine compounds.

    摘要翻译: 通过在还原催化剂存在下还原多氯甲烷如四氯化碳,以高产率以高产率高产率地生产氢氯甲烷例如氯仿的方法。 必须进行液相还原以有效地抑制伴随形成杂质,例如使催化剂失活的聚合物,由此催化剂可充分发挥其高选择性和活性。 作为催化剂,元素周期表第8,9和10族元素中适当地选择至少一种元素,例如钌,铑,钯或铂。 基于任何上述元素并且还包含诸如铜,银或金之类的第11族元素​​中的至少一种的催化剂也适合可用。 当连续进行液相还原时,需要使用固定床,特别需要滴加床。 作为将四氯化碳从保存地球环境的观点出发合法使用的四氯化碳转换成例如作为各种氟化合物的原料有用的氯仿的方法,该方法也非常有价值 。

    Verfahren zur Hydrierung von Chlormethanen
    2.
    发明公开
    Verfahren zur Hydrierung von Chlormethanen 失效
    Verfahren zur Hydrierung von Chlormethanen。

    公开(公告)号:EP0523553A1

    公开(公告)日:1993-01-20

    申请号:EP92111722.2

    申请日:1992-07-09

    IPC分类号: C07C17/00 C07C19/02

    摘要: Gegenstand der Erfindung ist ein Verfahren zur Hydrierung von Chlormethanen der Formel CH n Cl m mit n = 0 bis 3 und m = 4-n mit Wasserstoff bei einer Temperatur von 150 bis 250°C und unter einem Druck von 1 bis 10 bar absolut mittels eines Trägerkatalysators, enthaltend einen Aktivkohleträger mit mehr als 500 m²/g BET-Oberfläche, 0.5 bis 20 Gew.% Kupfer in elementarer oder chemisch gebundener Form und 0.01 bis 1.0 Gew.% Rhodium oder Palladium in elementarer oder chemisch gebundener Form und mit 0.1 bis 10.0 Gew.% eines wasserlöslichen Phosphoniumhalogenids.

    摘要翻译: 本发明涉及一种氢化方法,其中n = 0至3和m = 4-n的式CHClClm的氯甲烷在150-250℃的温度和1至10巴的绝对压力下氢化 的载体催化剂,其含有BET表面积大于500m 2 / g的活性炭载体,元素或化学键合形式的铜为0.5-20重量%,以及0.01-1.0重量%的铑或 元素或化学键合形式的钯,并含有0.1至10.0重量%的水溶性卤化鏻。

    Process for preparing lower alkyl-halides
    3.
    发明公开
    Process for preparing lower alkyl-halides 失效
    烯丙基卤化物(Verfahren zur Herstellung von niedrigen)烷基卤化物。

    公开(公告)号:EP0446537A1

    公开(公告)日:1991-09-18

    申请号:EP90400667.3

    申请日:1990-03-13

    IPC分类号: C07C19/02 C07C17/16

    CPC分类号: C07C17/16 C07C19/03

    摘要: A process for preparing lower alkyl-halides from the reaction of HX and the corresponding lower alcohol, wherein X represents a halogen atom, comprises continuously feeding HX and a lower alcohol to a reactor maintaining the instantaneous molar ratio of HX to the alcohol greater than 3, and continuously distilling off lower alkyl-halide and water from the reactor, continuously separating the lower alkyl-halide and water and recycling part of the said water to the distillation column to abate HX distillation from the reactor. High acid concentrations and temperatures are maintained to obtain high yields and rapid conversion of alkanols.

    摘要翻译: 从HX和相应的低级醇(其中X表示卤素原子)的反应制备低级烷基卤化物的方法包括将HX和低级醇连续地供入反应器,保持HX与醇的瞬时摩尔比大于3 并连续地从反应器中蒸馏除去低级烷基卤化物和水,连续分离低级烷基卤化物和水,并将部分所述水再循环到蒸馏塔中以从反应器中减少HX蒸馏。 保持高酸浓度和温度以获得高产率和链烷醇的快速转化。

    Spaltung von Dimethyläther
    4.
    发明公开
    Spaltung von Dimethyläther 失效
    Spaltung vonDimethyläther。

    公开(公告)号:EP0323840A1

    公开(公告)日:1989-07-12

    申请号:EP89100130.7

    申请日:1989-01-05

    IPC分类号: C07C19/02 C07C17/22

    CPC分类号: C07C17/093 C07C19/03

    摘要: Die Erfindung betrifft ein Verfahren zur Herstellung von Methylchlorid aus Dimethylether und Chlorwasserstoff an einem festen Zinkchlorid-Katalysator, wobei Chlorwasserstoff und Dimethylether im Molverhältnis von 2,0 zu 1 bis 2,5 zu 1 eingesetzt werden.

    摘要翻译: 一种在固体氯化锌催化剂上由二甲醚和氯化氢制备甲基氯的方法,其中氯化氢和二甲醚的摩尔比为2.0:1至2.5:1。

    Liquid phase chlorination of chlorinated methanes
    6.
    发明公开
    Liquid phase chlorination of chlorinated methanes 失效
    氯代甲烷的液相氯化

    公开(公告)号:EP0209768A1

    公开(公告)日:1987-01-28

    申请号:EP86109086.8

    申请日:1986-07-03

    IPC分类号: C07C17/10 C07C19/02

    摘要: This invention describes an improved liquid phase chlorination process for the chlorination of methyl chloride to preferentially produce methylene chloride. The chlorine is provided to the reaction mixture in a mole percent, based upon the total moles of chlorine and methyl chloride in the mix, which ranges from 16 to 2 mole percent.

    摘要翻译: 本发明描述了氯甲烷氯化以优先生产二氯甲烷的改进的液相氯化方法。 基于混合物中氯和氯甲烷的总摩尔数,摩尔百分数将氯提供给反应混合物,其范围为16至2摩尔%。

    Process for producing monoadducts of olefins and telogens reactive therewith
    10.
    发明公开
    Process for producing monoadducts of olefins and telogens reactive therewith 失效
    Verfahren zur Herstellung von Monoaddukten von Olefinen und damitreagierfähigenTelogenen。

    公开(公告)号:EP0131561A1

    公开(公告)日:1985-01-16

    申请号:EP84870094.4

    申请日:1984-07-04

    申请人: MONSANTO COMPANY

    IPC分类号: C07C17/38 C07C19/02

    CPC分类号: C07C17/275

    摘要: A process is disclosed for producing a monoadduct of a taxogen and a telogen reactive therewith. The taxogen and telogen are reacted in the presence of both a promoter and a source of metallic iron that is capable of being an activator for the reaction. The promoter comprises a phosphorus (V) compound containing a phosphoryl group.

    摘要翻译: 公开了一种用于生产紫杉醇的单加合物和与其反应的脱水酶的方法。 在能够作为反应的活化剂的金属铁的助催化剂和来源的存在下,taxogen和telogen反应。 促进剂包含含有磷酰基的磷(V)化合物。