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    Process for preparing acrylic acid purified by crystallization from hydroxypropionic acid and apparatus therefore
    8.
    发明授权
    Process for preparing acrylic acid purified by crystallization from hydroxypropionic acid and apparatus therefore 有权
    因此通过从羟基丙酸结晶纯化丙烯酸的方法和装置

    公开(公告)号：US08198481B2

    公开(公告)日：2012-06-12

    申请号：US12438295

    申请日：2007-08-22

    申请人： Franz-Felix Kuppinger ,  Axel Hengstermann ,  Guido Stochniol ,  Günther Bub ,  Jürgen Mosler ,  Andreas Sabbagh

    发明人： Franz-Felix Kuppinger ,  Axel Hengstermann ,  Guido Stochniol ,  Günther Bub ,  Jürgen Mosler ,  Andreas Sabbagh

    IPC分类号： C07C51/42

    CPC分类号： C08F120/06 ,  C07C51/377 ,  C07C51/43 ,  Y02P20/127 ,  C07C57/04

    摘要： The invention relates to a process for the preparation of acrylic acid and a process for the preparation of polyacrylic acid comprising the process steps: (a1) preparation of 3-hydroxypropionic acid from a biological material to give a fluid, in particular aqueous, phase containing 3-hydroxypropionic acid; (a2) dehydration of the 3-hydroxypropionic acid to give a fluid, in particular aqueous, solution containing acrylic acid; (a3) purification of the solution containing acrylic acid by a suspension crystallization or a layer crystallization to give a purified phase; and corresponding devices for carrying out these processes, and acrylic acid and polyacrylates. The invention is distinguished in that acrylic acid and polyacrylates can thereby be prepared efficiently, inexpensively, and sustainably with simple means and with a high purity on the basis of regenerable raw materials.

    摘要翻译： 本发明涉及一种制备丙烯酸的方法和一种制备聚丙烯酸的方法，包括以下步骤：（a1）从生物材料制备3-羟基丙酸，得到流体，特别是含水相，含有 3-羟基丙酸; （a2）将3-羟基丙酸脱水得到流体，特别是含丙烯酸的水溶液; （a3）通过悬浮结晶或层结晶纯化含丙烯酸的溶液，得到纯化相; 和用于进行这些工艺的相应装置，以及丙烯酸和聚丙烯酸酯。 本发明的区别在于，丙烯酸和聚丙烯酸酯由此可以以可再生的原料为基础，以简单的手段和高纯度有效，廉价和可持续地制备。

    Superabsorbent polymers and methods of making the same
    9.
    发明授权
    Superabsorbent polymers and methods of making the same 有权
    超吸收性聚合物及其制造方法

    公开(公告)号：US08293941B2

    公开(公告)日：2012-10-23

    申请号：US13474981

    申请日：2012-05-18

    申请人： Franz-Felix Kuppinger ,  Axel Hengstermann ,  Guido Stochniol ,  Günther Bub ,  Jürgen Mosler ,  Andreas Sabbagh

    发明人： Franz-Felix Kuppinger ,  Axel Hengstermann ,  Guido Stochniol ,  Günther Bub ,  Jürgen Mosler ,  Andreas Sabbagh

    IPC分类号： C07C51/42

    CPC分类号： C08F120/06 ,  C07C51/377 ,  C07C51/43 ,  Y02P20/127 ,  C07C57/04

    摘要： In one aspect, a process for the preparation of a superabsorbent polymer is described herein. In some embodiments, the process comprises (I) preparing acrylic acid, wherein the process comprises (a1) provision of a fluid F1 having a composition comprising from about 5 to about 20 wt. % of hydroxypropionic acid, salts thereof, or mixtures thereof; from about 0.1 to about 5 wt. % of inorganic salts; from about 0.1 to about 30 wt. % of organic compounds which differ from hydroxypropionic acid; from 0 to about 50 wt. % of solids; and from about 20 to about 90 wt. % of water; (a2) dehydration of said hydroxypropionic acid to give a fluid F2 containing acrylic acid; and (a3) purification of said fluid F2 to give a purified acrylic acid phase comprising acrylic acid having a purity of at least 70 wt. %; and (II) polymerizing the acrylic acid of (I) to form a superabsorbent polymer.

    摘要翻译： 一方面，本文描述了制备超吸收性聚合物的方法。 在一些实施方案中，该方法包括（I）制备丙烯酸，其中该方法包括（a1）提供具有包含约5至约20wt。 ％的羟基丙酸，其盐或其混合物; 约0.1至约5wt。 ％的无机盐; 约0.1至约30wt。 ％羟基丙酸不同的有机化合物的％; 0至约50wt。 ％的固体; 和约20至约90wt。 ％的水; （a2）所述羟基丙酸的脱水，得到含有丙烯酸的流体F2; 和（a3）纯化所述流体F2以得到包含纯度至少为70重量％的丙烯酸的纯化丙烯酸相。 ％; 和（II）使（I）的丙烯酸聚合以形成超吸收性聚合物。

    PROCESS FOR PREPARING ACRYLIC ACID PURIFIED BY CRYSTALLIZATION FROM HYDROXYPROPIONIC ACID AND APPARATUS THEREFORE
    10.
    发明申请
    PROCESS FOR PREPARING ACRYLIC ACID PURIFIED BY CRYSTALLIZATION FROM HYDROXYPROPIONIC ACID AND APPARATUS THEREFORE 有权
    制备丙烯酸的方法，由丙烯酸和水解产物结晶制备丙烯酸

    公开(公告)号：US20110105791A1

    公开(公告)日：2011-05-05

    申请号：US12438295

    申请日：2007-08-22

    申请人： Franz-Felix Kuppinger ,  Axel Hengstermann ,  Guido Stochniol ,  Günther Bub ,  Jürgen Mosler ,  Andreas Sabbagh

    发明人： Franz-Felix Kuppinger ,  Axel Hengstermann ,  Guido Stochniol ,  Günther Bub ,  Jürgen Mosler ,  Andreas Sabbagh

    IPC分类号： C07C51/43 ,  B01J19/00

    CPC分类号： C08F120/06 ,  C07C51/377 ,  C07C51/43 ,  Y02P20/127 ,  C07C57/04

    摘要： The invention relates to a process for the preparation of acrylic acid and a process for the preparation of polyacrylic acid comprising the process steps: (a1) preparation of 3-hydroxypropionic acid from a biological material to give a fluid, in particular aqueous, phase containing 3-hydroxypropionic acid; (a2) dehydration of the 3-hydroxypropionic acid to give a fluid, in particular aqueous, solution containing acrylic acid; (a3) purification of the solution containing acrylic acid by a suspension crystallization or a layer crystallization to give a purified phase; and corresponding devices for carrying out these processes, and acrylic acid and polyacrylates. The invention is distinguished in that acrylic acid and polyacrylates can thereby be prepared efficiently, inexpensively, and sustainably with simple means and with a high purity on the basis of regenerable raw materials.

    摘要翻译： 本发明涉及一种制备丙烯酸的方法和一种制备聚丙烯酸的方法，包括以下步骤：（a1）从生物材料制备3-羟基丙酸，得到流体，特别是含水相，含有 3-羟基丙酸; （a2）将3-羟基丙酸脱水得到流体，特别是含丙烯酸的水溶液; （a3）通过悬浮结晶或层结晶纯化含丙烯酸的溶液，得到纯化相; 和用于进行这些工艺的相应装置，以及丙烯酸和聚丙烯酸酯。 本发明的区别在于，丙烯酸和聚丙烯酸酯由此可以以可再生的原料为基础，以简单的手段和高纯度有效，廉价和可持续地制备。