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    VERFAHREN ZUR ABTRENNUNG VON SAUERGASEN AUS EINEM WASSERHALTIGEN FLUIDSTROM
    3.
    发明公开
    VERFAHREN ZUR ABTRENNUNG VON SAUERGASEN AUS EINEM WASSERHALTIGEN FLUIDSTROM 有权
    用于气体从酸性水汽含有流体分权

    公开(公告)号：EP2892633A1

    公开(公告)日：2015-07-15

    申请号：EP13750876.8

    申请日：2013-08-19

    申请人： BASF SE

    发明人： KATZ, Torsten ,  BARTLING, Karsten

    IPC分类号： B01D53/14

    CPC分类号： B01D53/40 ,  B01D53/1418 ,  B01D53/1425 ,  B01D53/1456 ,  B01D53/1493 ,  B01D2252/204 ,  B01D2257/30 ,  B01D2257/40 ,  B01D2257/504 ,  B01D2258/0283 ,  B01D2258/05 ,  C10L3/102

    摘要： A method for separating acid gases from an aqueous flow of fluid is described, according to which method a) the aqueous flow of fluid is brought into contact in an absorption area with an absorbent which contains at least one amine, wherein a deacidified flow of fluid and an absorbent charged with acid gases are obtained; b) the deacidified flow of fluid is brought into contact in a washing area with an aqueous washing fluid in order to transfer, at least partially, carried amine into the washing fluid, wherein a deaminated, deacidified flow of fluid and an amine-charged washing fluid are obtained; c) the deaminated, deacidified flow of fluid is cooled downstream of the washing area, wherein an absorber top condensate is condensed out of the deaminated, deacidified flow of fluid; d) the charged absorbent is guided into a desorption area in which the acid gases are at least partially released, wherein a regenerated absorbent and desorbed acid gases are obtained; e) the regenerated absorbents are guided back into the absorption area in order to form an absorbent cycle; f) the amine-charged washing fluid and the absorber top condensate are introduced into the absorbent cycle; and g) the desorbed acid gases are guided through a reinforcement area and the acid gases coming out of the top of the reinforcement area are cooled, in order to condense a desorber top condensate out of the acid gases, which desorber top condensate is partially guided back into the reinforcement area and is partially guided out of the method. The method allows an efficient retention of amines from the treated flows of fluid while maintaining the water balance of the acid gas removal installation.

    VERFAHREN ZUR HERSTELLUNG UND AUFREINIGUNG VON SALZEN DER ACRYLAMIDO-2-METHYL-PROPANSULFONSÄURE
    6.
    发明公开
    VERFAHREN ZUR HERSTELLUNG UND AUFREINIGUNG VON SALZEN DER ACRYLAMIDO-2-METHYL-PROPANSULFONSÄURE 有权
    奥地利维吾尔族ZUR HERSTELLUNG AUFREINIGUNG VON SALZEN DER ACRYLAMIDO-2-METHYL-PROPANSULFONSURE

    公开(公告)号：EP2785686A2

    公开(公告)日：2014-10-08

    申请号：EP12791486.9

    申请日：2012-11-28

    申请人： BASF SE

    发明人： EBEL, Klaus ,  VOITL, Tobias ,  KELLER, Andreas ,  RUEDENAUER, Stefan ,  BARTLING, Karsten ,  LANGLOTZ, Bjoern ,  STEINER, Jochen

    IPC分类号： C07C303/44 ,  C07C309/15

    CPC分类号： C07C303/44 ,  C07C309/15

    摘要： The invention relates to a method for producing salts of acrylamido-2-methylpropane sulfonic acid (A), comprising the following steps: a) producing a solution of a contaminated salt of acrylamido-2-methylpropane sulfonic acid (A) in a water-free, organic solvent (L) using at least one basic component (B) selected from the group comprising alkali metal oxides, alkaline-earth metal oxides, alkali hydroxides, alkaline-earth metal hydroxides, and amines of general formula (I) NR
    a R
    b R
    c (I), wherein the groups R
    a , R
    b , and R
    c mean the following independently of each other: hydrogen, C
    1 -C
    4 alkyl, hydroxy C
    1 -C
    4 alkyl, or C
    1 -C
    4 alkoxy, wherein the molar ratio of compound (A) to basic component (B) is preferably 1:1 to 1:3; b) optionally partially removing the organic solvent (L) at a pressure in the range of 0.001 to 2 bar (abs); c) recovering the dissolved salt of compound (A) by crystallization or precipitation, by changing the temperature and/or the pressure and/or the concentration of the salt in the solution; d) optionally drying the purified salt of acrylamido-2-methylpropane sulfonic acid (A). Said method according to the invention leads to salts that are poor in byproduct and especially suitable for polymerization.

    摘要翻译： 本发明涉及一种丙烯酰氨基-2-甲基丙磺酸（A）的盐的制备方法，包括以下步骤：a）将丙烯酰氨基-2-甲基丙磺酸（A）的污染盐溶液在水溶液中， 使用选自碱金属氧化物，碱土金属氧化物，碱金属氢氧化物，碱土金属氢氧化物和通式（I）的胺的至少一种碱性组分（B）的游离的有机溶剂（L）NRa Rb Rc（I）其中基团R a，R b和R c彼此独立地表示：氢，C 1 -C 4烷基，羟基C 1 -C 4烷基或C 1 -C 4烷氧基，其中化合物（A） 至碱性成分（B）优选为1：1〜1：3; b）任选地在0.001至2巴（abs）范围内的压力下部分除去有机溶剂（L）; c）通过结晶或沉淀，通过改变溶液中的盐的温度和/或压力和/或浓度来回收化合物（A）的溶解盐; d）任选地干燥丙烯酰胺-2-甲基丙磺酸（A）的纯化盐。 根据本发明的所述方法导致副产物不良的盐，特别适用于聚合。