Process for the preparation of delignified and bleached chemical paper
pulps
    41.
    发明授权
    Process for the preparation of delignified and bleached chemical paper pulps 失效
    制备脱木素和漂白化学纸浆的方法

    公开(公告)号:US6019870A

    公开(公告)日:2000-02-01

    申请号:US737684

    申请日:1997-01-17

    IPC分类号: D21C9/10 D21C9/16 D21C9/147

    摘要: A process of dignifying lignocellulosic pulp with oxygen followed by treatment of the delignified pulp with a chelating agent, followed by washing, followed by treatment with hydrogen peroxide at an alkaline pH in the presence of an alkali metal silicate at a temperature greater than 100.degree. C. and a pressure greater than 1.5 times the saturated vapor pressure.

    摘要翻译: PCT No.PCT / FR95 / 00494 Sec。 371日期1997年1月17日 102(e)日期1997年1月17日PCT提交1995年4月14日PCT公布。 出版物WO95 / 31599 日期1995年11月23日一种使木质纤维素纸浆氧化的方法,然后用螯合剂处理脱木素纸浆,然后洗涤,随后在碱性pH下在碱金属硅酸盐存在下用过氧化氢处理温度 大于100℃,压力大于饱和蒸汽压力的1.5倍。

    Two-step bleaching of plant materials
    42.
    发明授权
    Two-step bleaching of plant materials 失效
    植物材料的两步漂白

    公开(公告)号:US5219601A

    公开(公告)日:1993-06-15

    申请号:US850127

    申请日:1992-03-12

    申请人: Michel Devic

    发明人: Michel Devic

    IPC分类号: A23L1/277 A23L1/308

    CPC分类号: A23L5/49

    摘要: A variety of plant materials adopted for processing into, e.g., low-calorie vegetable fibers and dietary flours, are bleached by (1) prebleaching such plant material in a first aqueous solution containing an alkaline agent and hydrogen peroxide, the alkaline agent being present in solution in such amount that the final pH of the resulting suspension is no greater than 9, (2) filtering and washing the suspension produced in step (1) with water, to an effectiveness of at least 50%, (3) bleaching the material obtained after step (2) in a second aqueous solution containing an alkaline agent and hydrogen peroxide, the alkaline agent being present in solution in such amount that the final pH of the resulting suspension is no greater than 8.5, and, characteristically, (4) filtering and washing the suspension produced in step (3) with water.

    摘要翻译: 用于加工成例如低卡路里植物纤维和膳食面粉的各种植物材料通过(1)将这种植物材料预漂白在含有碱性试剂和过氧化氢的第一水溶液中而漂白,碱性试剂存在于 溶液的量使所得悬浮液的最终pH不大于9,(2)用水过滤和洗涤步骤(1)中产生的悬浮液,有效性至少为50%,(3)漂白材料 在步骤(2)之后在含有碱性试剂和过氧化氢的第二水溶液中获得的碱性试剂以使所得悬浮液的最终pH不大于8.5的量存在于溶液中,特征在于(4) 用水过滤和洗涤步骤(3)中产生的悬浮液。

    Process of decomposition of a complex of ortho-benzoyl benzoic acid,
hydrogen fluoride and boron trifluoride
    43.
    发明授权
    Process of decomposition of a complex of ortho-benzoyl benzoic acid, hydrogen fluoride and boron trifluoride 失效
    邻苯甲酰苯甲酸,氟化氢和三氟化硼的络合物的分解过程

    公开(公告)号:US4496760A

    公开(公告)日:1985-01-29

    申请号:US523945

    申请日:1983-08-17

    申请人: Michel Devic

    发明人: Michel Devic

    CPC分类号: C07C51/44 C07C51/487

    摘要: A process for the decomposition of complexes of ortho-benzoyl benzoic acids, hydrogen fluoride, and boron trifluoride, whether or not the ortho-benzoyl benzoic acid is substituted, is disclosed wherein the ortho-benzoyl benzoic acid is obtained separately from the hydrogen fluoride and boron trifluoride. This process is characterized in that the complex is treated with an inert solvent at a temperature of at least 20.degree. C., in a distillation column having at least about 8 theoretical plates whereby the solvent reflux is operated at a rate equal to about 5 to about 40 times the weight of the feed delivery rate of the column.The process of the present invention also makes it possible to recover hydrogen fluoride and boron trifluoride for reuse as catalysts in the synthesis of ortho-benzoyl benzoic acid without causing decomposition of the acid.

    摘要翻译: 公开了分离邻苯甲酰苯甲酸,氟化氢和三氟化硼的络合物的方法,无论邻苯甲酰苯甲酸是否被取代,其中邻苯甲酰苯甲酸分别从氟化氢和 三氟化硼。 该方法的特征在于,在至少20℃的温度下,在具有至少约8理论塔板的蒸馏塔中用惰性溶剂处理络合物,由此溶剂回流以等于约5至 是柱的饲料输送速率的约40倍。 本发明的方法还可以在不引起酸分解的情况下回收氟化氢和三氟化硼作为合成邻苯甲酰苯甲酸的催化剂。

    Process for the manufacture of pentafluoroethane
    45.
    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。

    COATED REACTORS, PRODUCTION METHOD THEREOF AND USE OF SAME
    46.
    发明申请
    COATED REACTORS, PRODUCTION METHOD THEREOF AND USE OF SAME 有权
    涂层反应器,其生产方法和使用方法

    公开(公告)号:US20100068108A1

    公开(公告)日:2010-03-18

    申请号:US12513412

    申请日:2007-11-06

    申请人: Michel Devic

    发明人: Michel Devic

    IPC分类号: B01J19/02

    摘要: The present invention relates to a process for the preparation of primary di- and/or triamines of high purity from nitriles which can themselves originate from dimer and/or trimer acids.This process comprises a stage of ammoniation of the acid functional groups and a stage of hydrogenation of the nitrile functional groups to give primary amine functional groups and does not require additional purification stage(s).

    摘要翻译: 本发明涉及一种由腈制备高纯度的主要二 - 和/或三胺的方法,其本身可以源于二聚体和/或三聚酸。 该方法包括酸官能团的氨化阶段和腈官能团的氢化阶段以产生伯胺官能团,并且不需要额外的纯化阶段。

    Process for the manufacture of pentafluoroethane
    47.
    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
    48.
    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。

    Supported metal catalyst, preparation and applications for directly making hydrogen peroxide
    50.
    发明授权
    Supported metal catalyst, preparation and applications for directly making hydrogen peroxide 失效
    负载金属催化剂,直接制备过氧化氢的制备和应用

    公开(公告)号:US06958138B1

    公开(公告)日:2005-10-25

    申请号:US10018868

    申请日:2000-06-07

    申请人: Michel Devic

    发明人: Michel Devic

    摘要: The invention concerns a supported metal catalyst based on at least one metal selected in the group M consisting of palladium, platinum, ruthenium, rhodium, iridium, holmium, osmium and gold, used for directly making hydrogen peroxide from hydrogen and oxygen. The invention also concerns a method for making said catalyst comprising successively an impregnating step with a solution based on one or several salt(s) of at least one metal of group M on a support, and a reduction step characterised in that at the end of the reduction step, the catalyst is treated with an aqueous acid solution comprising bromine and bromide ions. The catalyst is characterised by metal or crystallised metal aggregates with size ranging between 0.1 and 20 microns and preferably between 0.1 and 10 microns. The supported bimetal catalyst is preferred, for example Pd—Pt, Au—Pt, Pd—Ho and Pd—Au.

    摘要翻译: 本发明涉及一种载体金属催化剂,其基于选自由钯,铂,钌,铑,铱,钬,锇和金组成的组M中的至少一种金属,用于从氢气和氧气直接制备过氧化氢。 本发明还涉及一种制备所述催化剂的方法,其包括基于载体上至少一种M族金属的一种或多种盐的溶液的浸渍步骤,以及还原步骤,其特征在于在末端 还原步骤,用包含溴和溴离子的酸性水溶液处理催化剂。 催化剂的特征在于金属或结晶的金属聚集体,其尺寸范围为0.1至20微米,优选为0.1至10微米。 优选负载的双金属催化剂,例如Pd-Pt,Au-Pt,Pd-Ho和Pd-Au。