METHOD OF PRODUCING DIFLUOROMETHANE
    1.
    发明申请
    METHOD OF PRODUCING DIFLUOROMETHANE 失效
    生产二茂铁的方法

    公开(公告)号:US20040102659A1

    公开(公告)日:2004-05-27

    申请号:US10372430

    申请日:2003-02-24

    IPC分类号: C07C017/00 C07C019/08

    摘要: Disclosed is a method of producing difluoromethane (HFC-32), which comprises firstly reacting methylene chloride with hydrogen fluoride in gas phase at 280 to 340null C. in the presence of a fluorinated catalyst to produce chlorofluoro methane, and secondly reacting the chlorofluoro methane with hydrogen fluoride in liquid phase at 60 to 80null C. in the presence of an antimony chloride catalyst. The method is advantageous in that HFC-32 is produced in high yield under mild reaction conditions using a relatively small amount of energy.

    摘要翻译: 公开了一种生产二氟甲烷(HFC-32)的方法,其包括在氟化催化剂存在下,首先使二氯甲烷与氟化氢在气相中在280〜340℃下反应生成氯氟甲烷,其次使氯氟甲烷 在氯化锑催化剂的存在下,在60至80℃的液相中的氟化氢。 该方法的优点在于,在温和的反应条件下,使用相对少量的能量可以高产率生产HFC-32。

    Production of hydrofluoroalkanes
    2.
    发明申请
    Production of hydrofluoroalkanes 失效
    生产氢氟烷烃

    公开(公告)号:US20040024270A1

    公开(公告)日:2004-02-05

    申请号:US10362905

    申请日:2003-05-13

    IPC分类号: C07C019/08

    摘要: A process for the production of a hydrofluoroalkane, which process comprises contacting a hydrochlorofluoroethane of formula CClXYCFHZ, wherein X and Y are each independently chlorine or fluorine and Z is chlorine, fluorine or hydrogen, in the liquid phase with hydrogen fluoride and a fluorination catalyst and recovering a hydrofluoroalkane from the resulting products.

    摘要翻译: 一种制备氢氟烷烃的方法,该方法包括使氟化氢和氟化催化剂在液相中使式CClXYCFHZ的氢氯氟代乙烷与氟化氢和氟化催化剂接触,其中X和Y各自独立地是氯或氟,Z是氯,氟或氢; 从所得产物中回收氢氟烷烃。

    Process for producing a fluorine-containing compound
    3.
    发明申请
    Process for producing a fluorine-containing compound 有权
    含氟化合物的制造方法

    公开(公告)号:US20040024269A1

    公开(公告)日:2004-02-05

    申请号:US10629710

    申请日:2003-07-30

    IPC分类号: C07C019/08 C07C021/18

    摘要: It is to provide a process for synthesizing an intended fluorine-containing compound having a geminal difluoro structure with a high yield, by subjecting a carbonyl compound which is readily available to a two-stage reaction. A compound (1) such as ethyl 4-oxocyclohexanecarboxylate is reacted with a compound of the formula X-Z or a compound of the formula Z2O (wherein Z is a monovalent group which gives a leaving group of the structure nullOZ, and X is a chlorine atom, a bromine atom or an iodine atom) such as phosphorus pentachloride, and then a fluorinating agent which generates fluorine anions such as HF is acted thereon to obtain a fluorine-containing compound (2) such as ethyl 4,4-difluorocyclohexanecarboxylate. 1

    摘要翻译: 通过使容易获得的羰基化合物进行两步反应来提供通过高收率合成具有偕二氟结构的目标含氟化合物的方法。 使化合物(1)如4-氧代环己烷羧酸乙酯与式XZ化合物或式Z 2 O化合物(其中Z是一个给出离去基团结构-OZ的一价基团,X是氯 原子,溴原子或碘原子),然后将产生氟阴离子如氟化氢的氟化剂作用于其上,得到4,4-二氟环己烷羧酸乙酯等含氟化合物(2)。

    Process for the preparation of 1.1.1.3.3-pentafluoropropane
    4.
    发明申请
    Process for the preparation of 1.1.1.3.3-pentafluoropropane 失效
    制备1.1.1.3.3-五氟丙烷的方法

    公开(公告)号:US20040019244A1

    公开(公告)日:2004-01-29

    申请号:US10613546

    申请日:2003-07-03

    IPC分类号: C07C019/08

    摘要: 1,1,1,3,3-pentafluoropropane is produced by reaction between 1,1,1,3,3-pentachloropropane and hydrogen fluoride in the presence of a hydrofluorination catalyst. The 1,1,1,3,3-pentachloropropane may advantageously be obtained by reaction between vinyl chloride and tetrachloromethane in the presence of a telomerization catalyst and of a nitrile.

    摘要翻译: 1,1,1,3,3-五氟丙烷是在氢氟化催化剂存在下通过1,1,1,3,3-五氯丙烷和氟化氢反应制备的。 有利地,在调聚催化剂和腈的存在下,通过氯乙烯和四氯甲烷之间的反应获得1,1,1,3,3-五氯丙烷。

    Production and use of hexafluoroethane
    5.
    发明申请
    Production and use of hexafluoroethane 有权
    六氟乙烷的生产和使用

    公开(公告)号:US20040015022A1

    公开(公告)日:2004-01-22

    申请号:US10398441

    申请日:2003-04-04

    IPC分类号: C07C017/30 C07C019/08

    摘要: A process for production of high-purity hexafluoroethane, wherein a mixed gas containing hexafluoroethane and chlorotrifluoromethane is reacted with hydrogen fluoride in a gas phase in the presence of a fluorination catalyst at 200-450null C., for fluorination of the chlorotrifluoromethane, or wherein pentafluoroethane containing chlorine compounds with 1-3 carbon atoms is reacted with hydrogen in a gas phase in the presence of a hydrogenation catalyst at 150-400null C., and the product is then reacted with fluorine in a gas phase in the presence of a diluent gas.

    摘要翻译: 一种生产高纯度六氟乙烷的方法,其中含有六氟乙烷和一氯三氟甲烷的混合气体在氟化催化剂存在下在气相中与氟化氢在200-450℃反应,氟化三氟甲烷,或其中 含有1-3个碳原子的氯化合物的五氟乙烷在氢化催化剂存在下在150-400℃下与气相在氢气中反应,然后使产物在气相中在氟化氢存在下与氟反应, 稀释气体。

    Process for preparing 1,1,1-trifluoro-2, 2-dichloroethane
    10.
    发明申请
    Process for preparing 1,1,1-trifluoro-2, 2-dichloroethane 失效
    制备1,1,1-三氟-2,2-二氯乙烷的方法

    公开(公告)号:US20040186327A1

    公开(公告)日:2004-09-23

    申请号:US10814162

    申请日:2004-04-01

    IPC分类号: C07C019/08

    摘要: The invention relates to a process for preparing 1,1,1-trifluoro-2,2-dichloroethane (F123). This process consists in placing 1,1,1-trifluoro-2-chloroethane (Fl33a) in contact with chlorine in the presence of hydrogen fluoride and a fluorination catalyst. F133a may be obtained by fluorination of trichloroethylene, and the F123 may be subsequently fluorinated to F125.

    摘要翻译: 本发明涉及一种制备1,1,1-三氟-2,2-二氯乙烷(F123)的方法。 该方法是在氟化氢和氟化催化剂的存在下使1,1,1-三氟-2-氯乙烷(Fl33a)与氯接触。 F133a可以通过三氯乙烯的氟化获得,然后F123可以随后氟化成F125。