Process for the manufacture of pentafluoroethane
    1.
    发明授权
    Process for the manufacture of pentafluoroethane 有权
    五氟乙烷生产工艺

    公开(公告)号:US08058487B2

    公开(公告)日:2011-11-15

    申请号:US11606753

    申请日:2006-11-30

    IPC分类号: C07C17/08

    CPC分类号: C07C17/21 C07C19/08

    摘要: The present invention relates to a continuous process for the fluorination of perchloroethylene (PER) in the gas phase in a single stage with hydrofluoric acid (HF) in the presence of a catalyst to give, as major product, pentafluoroethane. The process is characterized in that it is carried out at a temperature of between 280 and 430° C. and with an HF/PER molar ratio of greater than or equal to 20.

    摘要翻译: 本发明涉及在催化剂存在下,用氢氟酸(HF)在单相中在气相中氟化全氯乙烯(PER)的连续方法,得到作为主要产物的五氟乙烷。 该方法的特征在于其在280至430℃之间的温度下进行,HF / PER摩尔比大于或等于20。

    Process for the manufacture of pentafluoroethane
    2.
    发明申请
    Process for the manufacture of pentafluoroethane 有权
    五氟乙烷生产工艺

    公开(公告)号:US20070129581A1

    公开(公告)日:2007-06-07

    申请号:US11606753

    申请日:2006-11-30

    IPC分类号: C07C19/08 C07C21/18

    CPC分类号: C07C17/21 C07C19/08

    摘要: The present invention relates to a continuous process for the fluorination of perchloroethylene (PER) in the gas phase in a single stage with hydrofluoric acid (HF) in the presence of a catalyst to give, as major product, pentafluoroethane. The process is characterized in that it is carried out at a temperature of between 280 and 430° C. and with an HF/PER molar ratio of greater than or equal to 20.

    摘要翻译: 本发明涉及在催化剂存在下,用氢氟酸(HF)在单相中在气相中氟化全氯乙烯(PER)的连续方法,得到作为主要产物的五氟乙烷。 该方法的特征在于其在280至430℃之间的温度下进行,HF / PER摩尔比大于或等于20。

    Hydrogenation method for unsaturated block copolymers and hydrogenated unsaturated block copolymers
    3.
    发明授权
    Hydrogenation method for unsaturated block copolymers and hydrogenated unsaturated block copolymers 失效
    不饱和嵌段共聚物和氢化不饱和嵌段共聚物的氢化方法

    公开(公告)号:US07202308B2

    公开(公告)日:2007-04-10

    申请号:US10466170

    申请日:2001-11-23

    IPC分类号: C08F8/02

    摘要: Use is made, for selectively hydrogenating the olefinic double bonds of block copolymers, at least one block of which comprises olefinic double bonds, using a catalyst based on a metal from Group VIII in a medium comprising an organic solvent for the copolymer and an ionic liquid as solvent for the catalyst, of a water-immiscible ionic liquid, preferably an ionic liquid for which the anion is the hexafluorophosphate anion and the cation is the 1-butyl-3-methylimidazolium (bmim+) or 1-ethyl-3-methylimidazolium (emim+) cation.Applied to poly(styrene)-b-poly(butadiene)-b-poly(methyl methacrylate) block copolymers, the poly(butadiene) block of which predominantly possesses a 1,4-microstructure, this process results in copolymers for which the degree of hydrogenation is at least equal to 50% and which exhibit a melting point of greater than 30 °C.

    摘要翻译: 使用在包含共聚物的有机溶剂的介质中使用基于VIII族金属的催化剂和至少一个嵌段共聚物的烯属双键来选择性氢化嵌段共聚物的烯属双键,并且使用离子液体 作为催化剂的溶剂,与水不混溶的离子液体,优选阴离子是六氟磷酸盐阴离子的离子液体,阳离子是1-丁基-3-甲基咪唑鎓(bmim +)或 1-乙基-3-甲基咪唑鎓(emim + +)阳离子。

    Process for preparing fluoroolefin compounds
    5.
    发明授权
    Process for preparing fluoroolefin compounds 有权
    氟烯烃化合物的制备方法

    公开(公告)号:US08841493B2

    公开(公告)日:2014-09-23

    申请号:US13375582

    申请日:2010-05-04

    IPC分类号: C07C17/25 C07C21/18

    摘要: The subject matter of the invention is a process for preparing fluoroolefin compounds. The invention relates more particularly to a process for producing a (hydro)fluoroolefin compound, which comprises (i) bringing at least one compound comprising from three to six carbon atoms, at least two fluorine atoms and at least one hydrogen atom, on the condition that at least one hydrogen atom and one fluorine atom are located on adjacent carbon atoms, into contact with a solid reactant comprising calcium hydroxide.

    摘要翻译: 本发明的主题是制备氟烯烃化合物的方法。 本发明更具体地涉及(氢)氟代烯烃化合物的制备方法,该方法包括(i)在条件下使至少一种包含3至6个碳原子的化合物,至少2个氟原子和至少1个氢原子 至少一个氢原子和一个氟原子位于相邻碳原子上,与包含氢氧化钙的固体反应物接触。

    PROCESS FOR PREPARING FLUOROOLEFIN COMPOUNDS
    7.
    发明申请
    PROCESS FOR PREPARING FLUOROOLEFIN COMPOUNDS 有权
    制备荧光素化合物的方法

    公开(公告)号:US20120083632A1

    公开(公告)日:2012-04-05

    申请号:US13375582

    申请日:2010-05-04

    IPC分类号: C07C17/23

    摘要: The subject matter of the invention is a process for preparing fluoroolefin compounds. The invention relates more particularly to a process for producing a (hydro)fluoroolefin compound, which comprises (i) bringing at least one compound comprising from three to six carbon atoms, at least two fluorine atoms and at least one hydrogen atom, on the condition that at least one hydrogen atom and one fluorine atom are located on adjacent carbon atoms, into contact with a solid reactant comprising calcium hydroxide.

    摘要翻译: 本发明的主题是制备氟烯烃化合物的方法。 本发明更具体地涉及(氢)氟代烯烃化合物的制备方法,该方法包括(i)在条件下使至少一种包含3至6个碳原子的化合物,至少2个氟原子和至少1个氢原子 至少一个氢原子和一个氟原子位于相邻碳原子上,与包含氢氧化钙的固体反应物接触。

    Process for the delignification and bleaching of chemical paper pulps with hydrogen peroxide and at least one polymer
    9.
    发明授权
    Process for the delignification and bleaching of chemical paper pulps with hydrogen peroxide and at least one polymer 失效
    用过氧化氢和至少一种聚合物进行化学纸浆的脱木质素漂白的方法

    公开(公告)号:US06554958B1

    公开(公告)日:2003-04-29

    申请号:US08840305

    申请日:1997-04-11

    申请人: Michel Devic

    发明人: Michel Devic

    IPC分类号: D21C916

    CPC分类号: D21C9/163 D21C9/1036

    摘要: A process for the delignification and bleaching of chemical paper pulps comprising one or more stage(s) of treatment with hydrogen peroxide, at a temperature greater than 100° C. and under high pressure, in the presence of a polymer and of a compound A chosen from potassium hydroxide, sodium hydroxide and alkali metal or alkaline-earth metal carbonates.

    摘要翻译: 化学纸浆的脱木质素和脱色方法,包括在高于100℃和高压下,在聚合物和化合物A存在下,用过氧化氢处理的一个或多个阶段 选自氢氧化钾,氢氧化钠和碱金属或碱土金属碳酸盐。

    Process for preparing a bleached chemithermomechanical pulp
    10.
    发明授权
    Process for preparing a bleached chemithermomechanical pulp 失效
    制备漂白的机械浆的方法

    公开(公告)号:US5338402A

    公开(公告)日:1994-08-16

    申请号:US957636

    申请日:1992-10-06

    CPC分类号: D21C3/222

    摘要: A process for preparing chemithermomechanical pulp comprising subjecting a lignocellulosic substance from which said pulp is to be formed to the simultaneous action of a sulfite and a reducing agent that is more electronegative than the sulfite ion during a nondestructive cooking operation at a temperature of about 100.degree. C. or above under saturated steam pressure; said simultaneous action taking place at an initial pH of between 7 and 12.5.

    摘要翻译: 一种制备切割机械纸浆的方法,包括在约100℃的无损烹饪操作期间使形成所述纸浆的木质纤维素物质与亚硫酸盐和还原剂同时作用,所述亚硫酸盐和还原剂与非亚硝酸根离子相比更具电负性。 C.或以上饱和蒸气压; 所述同时作用发生在初始pH为7至12.5之间。