Process for the production of 1,1,1-trifluoroethane
    182.
    发明公开
    Process for the production of 1,1,1-trifluoroethane 失效
    生产1,1,1-三氟乙烷的方法

    公开(公告)号:EP0714874A1

    公开(公告)日:1996-06-05

    申请号:EP95114300.7

    申请日:1995-09-12

    CPC classification number: C07C17/206 B01J27/125 B01J27/128 C07C19/08

    Abstract: Process for synthesizing 1,1,1-trifluoroethane (143a) in the gaseous phase by reacting 1,1-defluoro-1-chloroethane in gaseous phase in the presence of a Cr catalyst. The process may be run isothermally or adiabatically, without co-feeding air or other oxygen containing gas, in the presence or absence of a Ni, Co, Zn or Mn cocatalyst for the Cr catalyst. The catalyst may be unsupported or supported with a support preferably selected from activated carbon, alumina and fluorided alumina. The formation of olefin byproduct can be kept to less than 10 ppm in accordance with the process of the invention.

    Abstract translation: 通过使1,1-二氟-1-氯乙烷在气相中在Cr催化剂存在下反应合成气相中的1,1,1-三氟乙烷(143a)的方法。 该方法可以在存在或不存在用于Cr催化剂的Ni,Co,Zn或Mn助催化剂的情况下等温或绝热地运行,而无需共同进料空气或其它含氧气体。 所述催化剂可以不被载体或载体优选选自活性炭,氧化铝和氟化氧化铝。 根据本发明的方法,可以将烯烃副产物的形成保持在小于10ppm。

    1,1,1-Trifluoroethane synthesis using a supported lewis acid
    183.
    发明公开
    1,1,1-Trifluoroethane synthesis using a supported lewis acid 失效
    上支持使用路易斯酸1,1,1-三氟乙烷的制备

    公开(公告)号:EP0712826A1

    公开(公告)日:1996-05-22

    申请号:EP95113522.7

    申请日:1995-08-29

    CPC classification number: C07C17/206 C07C19/08

    Abstract: Process for synthesizing 1,1,1-trifluoroethane (143a) in the gaseous phase by reacting 1,1-difluoro-1-chloroethane in gaseous phase in the presence of a catalyst selected from the SbV, TiIV,and SnIV salts. The process may be run without co-feeding chlorine gas as a coactivator, in the presence or absence of an impurity selected from HCl and 141b. The catalyst may be unsupported or supported on activated carbon. The formation of olefin byproduct was not detected when the process of the invention was conducted under the conditions described.

    Abstract translation: 过程用于通过从SBV,TiIV和SnIV盐的催化剂的存在下在气相中起反应的1,1-二氟-1-氯乙烷在气相中合成1,1,1-三氟乙烷(143A)。 该过程可以在没有共进料的氯气作为共活化剂运行,在从盐酸和141b选择的杂质的存在或不存在。 该催化剂可以是未负载或负载在活性炭上。 烯烃副产物的形成没有检测到什么时候所述的条件下什么进行的本发明的方法。

    Removal of sulphur dioxide from gaseous streams
    186.
    发明公开
    Removal of sulphur dioxide from gaseous streams 失效
    Entternung von Schwefeldioxid ausGasströmen

    公开(公告)号:EP0696469A1

    公开(公告)日:1996-02-14

    申请号:EP95111407.3

    申请日:1995-07-20

    CPC classification number: B01D53/507 B01D53/1493

    Abstract: This invention relates to a process for the removal of sulfur dioxide from a stream of gases comprising contacting said stream with a sulfur dioxide absorbing amount of a liquid absorbent comprising:

    a) a non-cyclic sulfone of the formula

            R-SO₂-R',

    or
    b) a non-cyclic sulfonamide of the formula
    where, in the formulas a) or b), R,R'R'' and R''' are primary, secondary or tertiary alkyl, or alkaryl groups wherein the alkyl moieties have from 1 to 20 carbons and R'' and R''' may also be hydrogen, water being substantially insoluble with the sulfone of a) and the sulfonamide of b), and separating the rich sulfur dioxide enriched liquid absorbent from said stream.

    Abstract translation: 本发明涉及从气流中除去二氧化硫的方法,包括使所述物流与二氧化硫吸收量的液体吸收剂接触,包括:a)式R-SO 2 -R'的非环状砜, 或b)式的非环状磺酰胺,其中在式a)或b)中,R,R'R“和R”'是伯,仲或叔烷基或烷芳基,其中 烷基部分具有1至20个碳,R“和R”'也可以是氢,水基本上不溶于a)的砜和b)的磺酰胺,并且将富含二氧化硫的液体吸收剂从所述 流。

    Pressurized production of alkanesulfonyl chloride and alkanesulfonic acid
    188.
    发明公开
    Pressurized production of alkanesulfonyl chloride and alkanesulfonic acid 失效
    Herstellung von Alkansulfonylchloriden undAlkansulfonsäurenunter Druck。

    公开(公告)号:EP0675107A1

    公开(公告)日:1995-10-04

    申请号:EP95104523.6

    申请日:1995-03-28

    CPC classification number: C07C303/16 C07C309/80 C07C309/04

    Abstract: A process for coproducing alkanesulfonyl chloride (ASC) or alkanesulfonic acid (ASA) and hydrochloric acid of reduced contamination with ASC, wherein a compound of the formula RSX, where X is hydrogen or -SR¹ and R and R¹ are alkyl radicals having from 1 to 20 carbon atoms, is reacted with chlorine in the presence of aqueous hydrochloride at an elevated pressure.

    Abstract translation: 用于共同生产具有降低的ASC污染的烷基磺酰氯(ASC)或烷烃磺酸(ASA)和盐酸的方法,其中式RSX的化合物,其中X是氢或-SR 1,R和R 1是 具有1至20个碳原子的烷基在氯化氢盐水溶液的存在下,在升高的压力下与氯反应。

Patent Agency Ranking