METHOD FOR PRODUCING HYDROFLUOROCARBONS
    1.
    发明申请
    METHOD FOR PRODUCING HYDROFLUOROCARBONS 审中-公开
    生产氢氟烃的方法

    公开(公告)号:US20090270659A1

    公开(公告)日:2009-10-29

    申请号:US12302659

    申请日:2007-05-09

    IPC分类号: C07C21/18 C07C19/08 B01J12/00

    摘要: The invention relates to a method for producing hydrofluorocarbons. The method comprises a step of reacting at least one hydro(fluoro)chlorocarbon or chlorocarbon with hydrofluoric acid in a gaseous phase in the presence of a catalyst, and a step of separating fluorination reaction products from the mixture. The method is characterized in that the gaseous flow from the reaction is compressed by means of a compressor before being subjected to the separation step. The invention also relates to a device for implementing the method.

    摘要翻译: 本发明涉及一种生产氢氟烃的方法。 该方法包括在催化剂存在下使气态中至少一种氢(氟)氯化碳或氯代烃与氢氟酸反应的步骤和从混合物中分离氟化反应产物的步骤。 该方法的特征在于,在进行分离步骤之前,来自反应的气流通过压缩机被压缩。 本发明还涉及一种用于实现该方法的装置。

    Process for preparing fluoroolefin compounds
    3.
    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
    5.
    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
    7.
    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
    8.
    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。

    Process for the cyclization of orthobenzoylbenzoic acid
    9.
    发明授权
    Process for the cyclization of orthobenzoylbenzoic acid 失效
    邻苯甲酰苯甲酸环化方法

    公开(公告)号:US4966984A

    公开(公告)日:1990-10-30

    申请号:US433365

    申请日:1989-11-08

    申请人: Michel Devic

    发明人: Michel Devic

    CPC分类号: C07C51/42 C07C51/487

    摘要: The process for the cyclization of orthobenzoylbenzoic acid into anthraquinone comprising heating orthobenzoylbenzoic acid in the solid phase at a temperature between about 300.degree. C. to 400.degree. C. in the presence of a superactive bleaching earth. The invention also comprises a process for the separation of phthalic acid and any phthalic anhydride impurities from orthobenzoylbenzoic acid prior to its cyclization into anthraquinone through the use of said earth at a temperature from 200.degree. C. to 250.degree. C.

    摘要翻译: 将邻苯甲酰苯甲酸环化成蒽醌的方法,包括在超活性漂白土存在下,在约300℃至400℃的温度下,在固相中加热邻苯甲酰苯甲酸。 本发明还包括一种将邻苯二甲酸和任何邻苯二甲酸酐杂质从邻苯甲酰基苯甲酸分离出的方法,在通过使用所述土壤在200-250℃的温度环化成蒽醌之前。

    METHOD FOR PREPARING FLUORINE COMPOUNDS
    10.
    发明申请
    METHOD FOR PREPARING FLUORINE COMPOUNDS 有权
    氟化合物的制备方法

    公开(公告)号:US20120136183A1

    公开(公告)日:2012-05-31

    申请号:US13382574

    申请日:2010-05-21

    IPC分类号: C07C17/25 C07C17/383

    摘要: The invention relates to a method for preparing fluoropropenes of formula (I) CF3CF═CHR, where R is a hydrogen or a fluorine atom from at least one compound of formula (Ia) CF3CF═CFR, where R has the same meaning as in formula (I), said method including the following steps: (i) hydrogenating at least one compound of formula (Ia) in an adiabatic reactor in the presence of a catalyst with a superstoichiometric amount of hydrogen so as to produce a hydrofluoropropane; (ii) partially condensing the flow from the adiabatic reactor of step (i) so as to produce a gaseous phase fraction, including unreacted hydrogen and a portion of the formed hydrofluoropropane, which is recirculated to step (i), and a liquid phase fraction including the residue of the hydrofluoropropane; (iii) dehydrofluorinating hydrofluoropropane from the liquid fraction of step (ii) using potassium hydroxide in an aqueous reaction medium contained in an agitated reactor so as to produce the fluoropropene of formula (I); and (iv) purifying the fluoropropene obtained in step (iii).

    摘要翻译: 本发明涉及一种制备式(I)CF 3 CF = CHR的氟丙烯的方法,其中R是至少一种式(Ia)CF 3 CF = CFR的化合物的氢或氟原子,其中R的定义与式 (I),所述方法包括以下步骤:(i)在具有超化学计量的氢的催化剂存在下,在绝热反应器中氢化至少一种式(Ia)化合物以产生氢氟丙烷; (ii)部分冷凝来自步骤(i)的绝热反应器的流,以便产生气相馏分,包括未反应的氢气和一部分所形成的氢氟丙烷,其循环至步骤(i),以及液相馏分 包括氢氟丙烷的残留物; (iii)使用氢氧化钾在搅拌反应器中的含水反应介质中,从步骤(ii)的液体馏分中脱氢氟化氢氟丙烷,以制备式(I)的氟丙烯; 和(iv)纯化步骤(iii)中获得的氟丙烯。