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185 条记录 (耗时 0.025 秒)

    METHOD OF REMOVING HYDROGEN FLUORIDE
    91.
    发明公开
    METHOD OF REMOVING HYDROGEN FLUORIDE 失效
    VERFAHREN ZURENTFERNÜNGVON FLUORWASSERSTOFF。

    公开(公告)号：EP0606482A1

    公开(公告)日：1994-07-20

    申请号：EP93908071.9

    申请日：1993-04-09

    申请人： DAIKIN INDUSTRIES, LIMITED

    发明人： TSUDA, Takehide, Yodogawa Works of ,  MATSUMOTO, Takeo, Yodogawa Works of ,  TANAKA, Yoshinori, Yodogawa Works of ,  KOMATSU, Satoshi, Yodogawa Works of ,  KOYAMA, Satoshi, Yodogawa Works of

    IPC分类号： C07C19/02 ,  C07C19/08 ,  C07C17/38

    CPC分类号： C01B7/196 ,  C01B7/195

    摘要： Hydrogen fluoride can be efficiently removed from a mixture thereof with dichloromethane, chlorofluoromethane and/or difluoromethane either by distilling the mixture to remove a binary azeotropic mixture composed of hydrogen fluoride and dichloromethane, one composed of hydrogen fluoride and chlorofluoromethane and one composed of hydrogen fluoride and difluoromethane, or by separating the mixture into an upper liquid phase rich in hydrogen fluoride and a lower liquid phase poor in hydrogen fluoride and distilling the respective phases in a similar manner.

    摘要翻译： 氟化氢可以通过蒸馏混合物从二氯甲烷，氯氟甲烷和/或二氟甲烷的混合物中有效地除去，除去由氟化氢和二氯甲烷组成的二元共沸混合物，一个由氟化氢和氯氟甲烷组成，一个由氟化氢组成，一个由氟化氢和 或通过将混合物分离成富含氟化氢的上液相和氟化氢中较差的较低液相，并以类似的方式蒸馏各相。

    Method for separating conjunct poylmeric byproducts from a mixture containing hydrofluoric acid and sulfolane
    93.
    发明公开
    Method for separating conjunct poylmeric byproducts from a mixture containing hydrofluoric acid and sulfolane 失效
    一种用于在氢氟酸和含砜混合物的聚合副产物的分离方法。

    公开(公告)号：EP0555960A2

    公开(公告)日：1993-08-18

    申请号：EP93300325.3

    申请日：1993-01-19

    申请人： MOBIL OIL CORPORATION

    发明人： Child, Jonathan Edward ,  Melli, Tomas Rodolfo ,  Yurchak, Sergei

    IPC分类号： C07C2/62

    CPC分类号： C01B7/195 ,  C07C2/62 ,  C07C2527/1206

    摘要： A method for separating conjunct polymers and sulfolane from a mixture containing conjunct polymers, sulfolane, and hydrofluoric acid is disclosed, which method comprises the sequential steps of separating hydrofluoric acid from the mixture to provide an intermediate stream containing less than 30 percent hydrofluoric acid by weight and gravitationally separating the intermediate stream into a sulfolane-enriched stream and a conjunct polymer-enriched stream.

    摘要翻译： 一种从含有混合聚合物，环丁砜和氢氟酸的混合物中分离混合聚合物和环丁砜法圆盘游离缺失，该方法包括从混合物中分离氢氟酸的连续步骤以提供包含按重量计小于30％的氢氟酸中间流 和重力分离中间流成环丁砜富集流和混合聚合物富集流。

    VERFAHREN UND EINRICHTUNG ZUR HERSTELLUNG VON SYNTHETISCHEM ANHYDRIT UND REINER FLUSSSÄURE
    95.
    发明授权
    VERFAHREN UND EINRICHTUNG ZUR HERSTELLUNG VON SYNTHETISCHEM ANHYDRIT UND REINER FLUSSSÄURE 失效
    制备合成无水硫酸钙和纯氢氯酸的方法和装置

    公开(公告)号：EP0077331B2

    公开(公告)日：1991-01-23

    申请号：EP82900014.0

    申请日：1981-12-21

    申请人： BUSS AG

    发明人： BÖSE, Dieter ,  ETTER, René

    IPC分类号： C01B7/19 ,  C01F11/46

    CPC分类号： C01B7/195 ,  C01B7/192 ,  C01F11/46

    摘要： In the production of synthetic anhydrous calcium sulphate and pure hydrofluoric acid, fluorspar is reacted with a mixture of sulphuric acid, oleum and a solution providing from the acid washing. Hence, a synthetic calcium sulphate is prepared, containing only the desired low content of CaF2, while the free sulphuric acid is completely neutralized, other desirable compounds being already present. The reaction is carried out in conditions such that no fluorsulphonic acid or very negligeable amounts of said acid reach the reactor and that the formation of new amounts of fluorsulphonic acid is actively prevented in the reactor. To this effect, on one hand the compounds CaF2 and the mixture-acid are introduced at a high temperature in the reactor and on the other hand the reactor is brought to a temperature such that the reaction initiates at about 100 C, thereby preventing the formation of new amount of fluorsulphonic acid. The gases coming out from the reactor are, in a first step, dried at a high temperature, then dusts are removed therefrom and finally in the last step, the gases are cooled.

    VERFAHREN UND EINRICHTUNG ZUR HERSTELLUNG VON SYNTHETISCHEM ANHYDRIT UND REINER FLUSSSÄURE
    96.
    发明公开
    VERFAHREN UND EINRICHTUNG ZUR HERSTELLUNG VON SYNTHETISCHEM ANHYDRIT UND REINER FLUSSSÄURE 失效
    方法和设备合成硬石膏和纯流动丙烯酸制造。

    公开(公告)号：EP0077331A1

    公开(公告)日：1983-04-27

    申请号：EP82900014.0

    申请日：1981-12-21

    申请人： BUSS AG

    发明人： BÖSE, Dieter ,  ETTER, René

    IPC分类号： C01B7 ,  C01F11

    CPC分类号： C01B7/195 ,  C01B7/192 ,  C01F11/46

    摘要： Dans le cadre de la fabrication de sulfate de calcium anhydre synthetique et d'acide fluorhydrique pur, l'on fait reagir du spath fluor avec un melange d'acide sulfurique, d'oleum et de solution provenant du lavage acide. L'on prepare ainsi un sulfate de calcium synthetique, qui ne contiendra plus que le faible pourcentage souhaitable en CaF2, alors que l'acide sulfurique libre est completement neutralise, d'autres composants souhaitables etant deja presents. L'on mene la reaction sous de telles conditions que des quantites d'acide fluorsulfonique nulles ou tres negligeables ne parviennent au reacteur et que dans ce dernier l'on puisse empecher activement la formation de nouvelles quantites d'acide fluorsulfonique. Dans ce but, d'une part l'on introduit les composants CaF2 et melange-acide a une temperature elevee dans le reacteur et d'autre part l'on porte le reacteur a une temperature telle que la reaction s'amorce aux environs de 100 C., ce qui alors empeche la formation de nouvelles quantites d'acide fluorsulfonique. Les gaz s'echappant du reacteur sont, en premiere etape, seches a temperature elevee, puis depoussieres et enfin, en derniere etape, refroidis.

    METHOD FOR PRODUCING CHLOROPROPENE AND METHOD FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE
    99.
    发明公开
    METHOD FOR PRODUCING CHLOROPROPENE AND METHOD FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE 审中-公开
    用于生产氯丙烯及其制造方法的2,3,3,3-四氟丙烯

    公开(公告)号：EP3170804A1

    公开(公告)日：2017-05-24

    申请号：EP15821671.3

    申请日：2015-06-16

    申请人： Daikin Industries, Ltd.

    发明人： TAKAKUWA, Tatsuya ,  TAKAHASHI, Kazuhiro ,  KARUBE, Daisuke ,  CHAKI, Takehiro ,  KISHIMOTO, Masayuki ,  KOMATSU, Yuzo

    IPC分类号： C07C17/383 ,  C07C17/20 ,  C07C17/25 ,  C07C21/18 ,  C07B61/00

    CPC分类号： C07C17/25 ,  B01D3/009 ,  B01D3/143 ,  B01J23/26 ,  C01B7/195 ,  C01B7/196 ,  C07C17/206 ,  C07C17/383 ,  Y02P20/582 ,  C07C21/18

    摘要： This invention provides a method for stably producing 2,3,3,3-tetrafluoropropene for a long period of time wherein unreacted materials are reused after distillation without liquid-liquid separation to suppress catalyst deactivation.
    The method for producing 2,3,3,3-tetrafluoropropene comprises the step of reacting 1233xf or like chloropropene with hydrogen fluoride in the presence of a catalyst, the step of subjecting the reaction mixture obtained in the above step to distillation to separate the mixture into a first stream comprising 2,3,3,3-tetrafluoropropene as a main component and a second stream comprising unreacted hydrogen fluoride and organic matter containing unreacted chloropropene as main components, and the step of recycling the second stream to the above reaction, the distillation being performed under conditions in which the unreacted hydrogen fluoride and the organic matter containing the unreacted chloropropene do not undergo liquid-liquid separation at a portion of a distillation column from which the second stream is withdrawn.

    摘要翻译： 本发明提供一种稳定地制造2,3,3,3-四氟丙烯的时间worin未反应的物质被蒸馏后重复使用，而不液 - 液分离来抑制催化剂失活长时间的方法。 的制造2,3,3,3-四氟丙烯的方法，包括使1233xf的或与氟化氢在催化剂的存在等氯丙烯的步骤中，使在上述工序中得到的反应混合物的步骤，以蒸馏分离混合物 成第一物流包含2,3,3,3-四氟丙烯为主要成分和第二物流含有未反应的氟化氢和未反应的有机物质含氯丙烯作为主要成分，并且所述第二物流循环进入上述反应的步骤中，所述 蒸馏是其中未反应的氟化氢和含有未反应的氯丙烯有机物不会在从该第二料流抽出的蒸馏塔的一部分经历液 - 液分离的条件下进行。