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    PURIFICATION OF PHOSPHORIC ACID RICH STREAMS
    1.
    发明申请
    PURIFICATION OF PHOSPHORIC ACID RICH STREAMS 有权
    纯化磷酸盐流

    公开(公告)号：US20080226529A1

    公开(公告)日：2008-09-18

    申请号：US12048254

    申请日：2008-03-14

    申请人： Reinhard Uwe SCHOLZ ,  RAY SIREY RUEMEKORF

    发明人： Reinhard Uwe SCHOLZ ,  RAY SIREY RUEMEKORF

    IPC分类号： C01B25/234 ,  C01B25/18

    CPC分类号： C01B25/234 ,  C01B25/238

    摘要： The invention relates to a method for the purification or recovery of orthophosphoric acid rich streams by suspension-based melt crystallization. The orthophosphoric acid is crystallized as the hemi-hydrate form and subsequent separation of such crystals in a wash-column produce a high purity acid/water solution that has been depleted of most of the metals and impurities other than water, thereby separating an orthophosphoric acid rich feed liquor into an ultra-pure orthophosphoric acid hemi-hydrate and a mother liquor containing almost all impurities originally present in the feed. The orthophosphoric acid rich feed liquor typically contains no more than 15 wt % water and 1 wt % other impurities. Individual metal ion composition in the purified orthophosphoric acid product is in the range of 100 to 1000 ppb (parts per billion= 1/1000 ppm) of each metal ion. The metal ion composition of the resulting purified product is thus typically below the detection limit of typical analysis equipment.

    摘要翻译： 本发明涉及通过基于悬浮液的熔融结晶来纯化或回收富含正磷酸的料流的方法。 正磷酸作为半水合物形式结晶，随后在洗涤塔中分离出这种晶体，产生了除了水以外大部分金属和杂质已经耗尽的高纯度酸/水溶液，从而分离正磷酸 富含饲料液成为超纯正磷酸半水合物和含有原料存在于饲料中几乎所有杂质的母液。 正磷酸进料液体通常含有不超过15重量％的水和1重量％的其它杂质。 纯化的正磷酸产物中的各种金属离子组成在每个金属离子的100至1000ppb（每十亿分之一或1/1000ppm）的范围内。 所得纯化产物的金属离子组成通常低于典型分析设备的检测限。

    Use of N-(aminoalkyl) pyrrolidines as catalysts for the polyisocyanate polyaddition process
    4.
    发明授权
    Use of N-(aminoalkyl) pyrrolidines as catalysts for the polyisocyanate polyaddition process 失效
    N-（氨基烷基）吡咯烷酮作为多异氰酸酯多元醇加工过程的催化剂的应用

    公开(公告)号：US5134217A

    公开(公告)日：1992-07-28

    申请号：US817240

    申请日：1992-01-06

    申请人： Richard Weider ,  Uwe Scholz

    发明人： Richard Weider ,  Uwe Scholz

    IPC分类号： C07D295/12 ,  C08G18/18 ,  C08G18/20 ,  C08G18/42 ,  C08G18/48 ,  C08G18/65 ,  C08G101/00

    CPC分类号： C08G18/2018 ,  C08G2101/0008 ,  C08G2101/0025 ,  C08G2101/0083 ,  C08G2290/00

    摘要： The present invention relates to a process for preparing polyisocyanate polyaddition products by reacting(a) polyisocyanates with(b) relatively high molecular weight compounds containing at least two isocyanate-reactive hydrogen atoms and(c) chain-extending agents, in the presence of(d) N-(aminoalkyl)pyrrolidine catalysts corresponding to formula (I) ##STR1## in which R is a C.sub.2-12 alkylene group (optionally containing O or N atoms but not isocyanate-reactive groups) andR' is hydrogen or a C.sub.1-4 alkyl group,(e) optionally, other known catalysts, and(f) other known additives.

    摘要翻译： 本发明涉及通过使（a）多异氰酸酯与（b）含有至少两个异氰酸酯反应性氢原子的相对高分子量化合物和（c）扩链剂反应的（a）多异氰酸酯加成产物 d）对应于式（I）的N-（氨基烷基）吡咯烷催化剂其中R是C 2-12亚烷基（任选地含有O或N原子但不含异氰酸酯反应性基团），R'是氢 或C 1-4烷基，（e）任选的其它已知的催化剂，和（f）其它已知的添加剂。

    Purification of phosphoric acid rich streams
    5.
    发明授权
    Purification of phosphoric acid rich streams 有权
    纯化富磷流

    公开(公告)号：US08034312B2

    公开(公告)日：2011-10-11

    申请号：US12048254

    申请日：2008-03-14

    申请人： Reinhard Uwe Scholz ,  Ray Sirey Ruemekorf

    发明人： Reinhard Uwe Scholz ,  Ray Sirey Ruemekorf

    IPC分类号： C01B25/16 ,  B01D9/00

    CPC分类号： C01B25/234 ,  C01B25/238

    摘要： The invention relates to a method for the purification or recovery of orthophosphoric acid rich streams by suspension-based melt crystallization. The orthophosphoric acid is crystallized as the hemi-hydrate form and subsequent separation of such crystals in a wash-column produce a high purity acid/water solution that has been depleted of most of the metals and impurities other than water, thereby separating an orthophosphoric acid rich feed liquor into an ultra-pure orthophosphoric acid hemi-hydrate and a mother liquor containing almost all impurities originally present in the feed. The orthophosphoric acid rich feed liquor typically contains no more than 15 wt % water and 1 wt % other impurities. Individual metal ion composition in the purified orthophosphoric acid product is in the range of 100 to 1000 ppb (parts per billion= 1/1000 ppm) of each metal ion. The metal ion composition of the resulting purified product is thus typically below the detection limit of typical analysis equipment.

    摘要翻译： 本发明涉及通过基于悬浮液的熔融结晶来纯化或回收富含正磷酸的料流的方法。 正磷酸作为半水合物形式结晶，随后在洗涤塔中分离出这种晶体，产生了除了水以外大部分金属和杂质已经耗尽的高纯度酸/水溶液，从而分离正磷酸 富含饲料液成为超纯正磷酸半水合物和含有原料存在于饲料中几乎所有杂质的母液。 正磷酸进料液体通常含有不超过15重量％的水和1重量％的其它杂质。 纯化的正磷酸产物中的各种金属离子组成在每个金属离子的100至1000ppb（每十亿分之一或1/1000ppm）的范围内。 所得纯化产物的金属离子组成通常低于典型分析设备的检测限。

    Method and apparatus for recovering a pure substance from an impure solution by crystallization
    8.
    发明授权
    Method and apparatus for recovering a pure substance from an impure solution by crystallization 有权
    通过结晶从不纯溶液中回收纯物质的方法和装置

    公开(公告)号：US07179435B2

    公开(公告)日：2007-02-20

    申请号：US10658459

    申请日：2003-09-10

    申请人： Ray Sircy Ruemekorf ,  Reinhard Uwe Scholz

    发明人： Ray Sircy Ruemekorf ,  Reinhard Uwe Scholz

    IPC分类号： C30B35/00

    CPC分类号： B01D9/0013 ,  B01D9/004 ,  B01D9/0059

    摘要： The invention relates to an apparatus for the purification of a substance from a solution, a suspension or a mixture of liquids by crystallization, preferably in a continuous manner. The apparatus comprises a first crystallizer (1c) comprising an input (1) for receiving a liquid comprising the substance and an output (4) for discharging a slurry of liquid and crystals. The apparatus comprises also a first separator (1s) connected to the output 4 of the first crystallizer (1c) having a product output (2), and being with a residue output (5) connected to an input of a second crystallizer (2c), and a second separator (2s) being with an input connected to an output (6) of the second crystallizer (2c), a crystal output (7) of the second separator (2s) being connected to an input of the first crystallizer (1c).

    摘要翻译： 本发明涉及一种用于通过结晶从溶液，悬浮液或液体混合物中纯化物质的装置，优选连续方式。 该装置包括第一结晶器（1c），其包括用于接收包含物质的液体的输入（1）和用于排出液体和晶体浆料的输出（4）。 该设备还包括连接到具有产品输出（2）的第一结晶器（1c）的输出端4的第一分离器（1s），并且具有连接到第二结晶器的输入端的残留物输出（5） 2c）和第二分离器（2s），其中输入端连接到第二结晶器（2c）的输出（6），第二分离器（2s）的晶体输出（7）连接到 第一结晶器（1c）的输入。

    Use of N-(aminoalkyl) pyrrolidines as catalysts for the polyisocyanate polyaddition process
    9.
    再颁专利
    Use of N-(aminoalkyl) pyrrolidines as catalysts for the polyisocyanate polyaddition process 有权
    使用N-（氨基烷基）吡咯烷作为多异氰酸酯加聚方法的催化剂

    公开(公告)号：USRE38415E1

    公开(公告)日：2004-02-03

    申请号：US10267119

    申请日：2002-10-07

    申请人： Richard Weider ,  Uwe Scholz

    发明人： Richard Weider ,  Uwe Scholz

    IPC分类号： C08G1808

    CPC分类号： C08G18/2018 ,  C08G2101/0008 ,  C08G2101/0083 ,  C08G2290/00

    摘要： The present invention relates to a process for preparing polyisocyanate polyaddition products by reacting (a) polyisocyanates with (b) relatively high molecular weight compounds containing at least two isocyanate-reactive hydrogen atoms and (c) chain-extending agents, in the presence of (d) N-(aminoalkyl)pyrrolidine catalysts corresponding to formula (I) in which R is a C2-12 alkylene group (optionally containing O or N atoms but not isocyanate-reactive groups) and R′ is hydrogen or a C1-4 alkyl group, (e) optionally, other known catalysts, and (f) other known additives.