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9 条记录 (耗时 0.016 秒)

    Process for the extractive purification of phosphoric acid containing cationic impurities
    1.
    发明授权
    Process for the extractive purification of phosphoric acid containing cationic impurities 失效
    含有阳离子杂质的磷酸的提取纯化方法

    公开(公告)号：US4018869A

    公开(公告)日：1977-04-19

    申请号：US575639

    申请日：1975-05-08

    申请人： Klaus Beltz ,  Klaus Frankenfeld ,  Karl Gotzmann

    发明人： Klaus Beltz ,  Klaus Frankenfeld ,  Karl Gotzmann

    IPC分类号： C01B25/234 ,  C23G1/36 ,  C01B25/16

    CPC分类号： C23G1/36 ,  C01B25/234

    摘要： A process for the purification of phosphoric acid containing cationic impurities is disclosed wherein there is added to a crude phosphoric acid an organic solvent miscible in all proportions with water and phosphoric acid and thereafter contacting the resulting solution with an inorganic material in aqueous or solid form to effect the preferential passage of the impurities of the crude phosphoric acid/organic solvent solution into an aqueous inorganic phase with phosphoric acid remaining in the organic solvent phase from which purified phosphoric acid is recovered by distillation of the organic solvent.

    摘要翻译： 公开了一种用于纯化含有阳离子杂质的磷酸的方法，其中向粗磷酸中加入与水和磷酸以所有比例混溶的有机溶剂，然后使所得溶液与水或固体形式的无机材料接触， 将磷酸残留在有机溶剂相中，通过蒸馏有机溶剂回收纯化的磷酸，使粗磷酸/有机溶剂溶液的杂质优先通过。

    Process for the precipitation and separation of cadmium sulphide from the raffinates derived from phosphoric acid purification
    3.
    发明授权
    Process for the precipitation and separation of cadmium sulphide from the raffinates derived from phosphoric acid purification 失效
    从磷酸净化得到的残液中沉淀和分离硫化镉的方法

    公开(公告)号：US4762692A

    公开(公告)日：1988-08-09

    申请号：US13885

    申请日：1987-02-12

    申请人： Klaus Beltz ,  Klaus Frankenfeld ,  Peter Ruschke ,  Gerhard Eich

    发明人： Klaus Beltz ,  Klaus Frankenfeld ,  Peter Ruschke ,  Gerhard Eich

    IPC分类号： C01G11/02 ,  C01B25/46 ,  C01B25/234

    CPC分类号： C01B25/461 ,  C01B25/462

    摘要： Disclosed is a process for the precipitation and separation of cadmium sulphide from the raffinates derived from phosphoric acid purification by treating the cadmium containing streams of the raffinates with a H.sub.2 S containing solvent phase in a mixing-settling apparatus, by separating the raffinate phase from the cadmium sulphide containing solvent phase and by separating the precipitated cadmium sulphide from the solvent phase. By operating this process it is possible to remove cadmium in a simple manner from the raffinates since their inherent properties don't influence the precipitation and separation of cadmium sulphide.

    摘要翻译： 本发明公开了一种通过在混合沉淀装置中通过用含硫化氢溶剂相处理含有镉的萃余液的流，通过将萃余液相与镉分离而从硫酸镉纯化中提取的残渣中沉淀和分离硫化镉的方法 含硫化物溶剂相，并将沉淀的硫化镉与溶剂相分离。 通过操作该方法，可以以简单的方式从萃余液中除去镉，因为其固有的性质不影响硫化镉的沉淀和分离。

    Process of obtaining uranium and uranium compounds from phosphoric acid
    4.
    发明授权
    Process of obtaining uranium and uranium compounds from phosphoric acid 失效
    从磷酸获得铀和铀化合物的工艺

    公开(公告)号：US4385036A

    公开(公告)日：1983-05-24

    申请号：US218033

    申请日：1980-12-19

    申请人： Klaus Beltz ,  Klaus Frankenfeld ,  Rainer Lehmann ,  Inge Zintl

    发明人： Klaus Beltz ,  Klaus Frankenfeld ,  Rainer Lehmann ,  Inge Zintl

    IPC分类号： B01D11/04 ,  C01B25/238 ,  C01G43/00 ,  C22B60/02

    CPC分类号： C22B60/026 ,  Y02P10/212

    摘要： The invention concerns a method for the liquid/liquid extraction of uranium from phosphoric acid with the aid of alkylamine polyphosphate and/or alkylamine metaphosphate compounds, dissolved in organic solvents insoluble in water. The uraniferous phosphoric acid is brought into contact with an organic phase compound of a long-chain alkylamine polyphosphate and/or alkylamine metaphosphate compound and an organic solvent, the alkylamine in the alkyl residue containing 8 to 30, preferably 8 to 18 C-atoms corresponding to the formula ##STR1## wherein R.sub.1 and R.sub.2 denote hydrogen or alkyl radicals and R.sub.3 denotes an alkyl radical, the polyphosphate and/or metaphosphate residue having 2 to 10,000 P-atoms per molecule and being of the straight-chain and/or linked-chain or cyclic chain type. The uranium is transferred from the aqueous into the organic phase from which the uranium is re-extracted in the known way.

    摘要翻译： 本发明涉及一种溶解在不溶于水的有机溶剂中的由多磷酸烷基胺多磷酸盐和/或烷基胺偏磷酸盐化合物从磷酸液/液萃取铀的方法。 使尿酸磷酸与长链烷基胺多磷酸盐和/或烷基胺偏磷酸盐化合物和有机溶剂的有机相化合物接触，烷基残基中的烷基胺含有8〜30个，优选8〜18个碳原子对应 其中R 1和R 2表示氢或烷基，R 3表示烷基，每个分子具有2至10,000个P原子的多磷酸盐和/或偏磷酸盐残基是直链和/或连接的， 链或环链型。 铀从水中转移到有机相中，铀以已知的方式从其中再提取。

    Process of obtaining uranium and uranium compounds from phosphoric acid
    5.
    发明授权
    Process of obtaining uranium and uranium compounds from phosphoric acid 失效
    从磷酸获得铀和铀化合物的工艺

    公开(公告)号：US4383978A

    公开(公告)日：1983-05-17

    申请号：US218032

    申请日：1980-12-19

    申请人： Klaus Beltz ,  Klaus Frankenfeld ,  Rainer Lehmann ,  Inge Zintl

    发明人： Klaus Beltz ,  Klaus Frankenfeld ,  Rainer Lehmann ,  Inge Zintl

    IPC分类号： B01D11/04 ,  C01G43/00 ,  C22B60/02

    CPC分类号： C22B60/026 ,  Y02P10/212

    摘要： The invention concerns a method for the liquid/liquid extraction of uranium from phosphoric acid with the aid of alkylamine polyphosphate and/or alkylamine metaphosphate compounds, dissolved in organic solvents insoluble in water, in the presence of Fe.sup.II ions.The uraniferous phosphoric acid is brought into contact with an organic phase. The organic phase is composed of a long-chain alkylamine polyphosphate and/or alkylamine metaphosphate compound and an organic solvent, the alkylamine in the alkyl residue containing 8 to 30, preferably 8 to 18 C-atoms corresponding to the formula ##STR1## R.sub.1 and R.sub.2 denoting hydrogen or alkyl radicals and R.sub.3 alkyl radicals, the polyphosphate and/or metaphosphate residue having 2 to 10,000 P-Atoms per molecule and being of the straight-chain and/or link-chain or cyclic type. The uranium is transferred from the aqueous into the organic phase from which the uranium is reextracted in the know way.

    摘要翻译： 本发明涉及在FeII离子存在下，借助于溶解在不溶于水的有机溶剂中的烷基胺多磷酸盐和/或烷基胺偏磷酸盐化合物，从磷酸中液/液萃取铀的方法。 使含尿磷酸与有机相接触。 有机相由长链烷基胺多磷酸盐和/或烷基胺偏磷酸盐化合物和有机溶剂组成，烷基残基中的烷基胺含有对应于式R1的8〜30个，优选8〜18个C原子， R2表示氢或烷基和R3烷基，每分子具有2至10,000个P原子的多磷酸盐和/或偏磷酸盐残基为直链和/或连接链或环状。 铀从水中转移到有机相中，铀以已知的方式从其中再提取。

    Removal of cadmium from acidic phosphatic solutions
    7.
    发明授权
    Removal of cadmium from acidic phosphatic solutions 失效
    从酸性磷酸盐溶液中去除镉

    公开(公告)号：US4492680A

    公开(公告)日：1985-01-08

    申请号：US495653

    申请日：1983-05-18

    申请人： Klaus Frankenfeld ,  Peter Ruschke ,  Peter Brodt ,  Gerhard Eich

    发明人： Klaus Frankenfeld ,  Peter Ruschke ,  Peter Brodt ,  Gerhard Eich

    IPC分类号： C01B25/238 ,  C01G11/00 ,  C22B3/28 ,  C01B25/16 ,  B03C1/00 ,  C01G9/00

    CPC分类号： C01G11/003 ,  C01B25/238 ,  C22B3/0012 ,  Y02P10/234

    摘要： The invention is concerned with a process of removing cadmium from acid, especially P.sub.2 O.sub.5 -containing solutions by liquid/liquid extraction with the aid of alkyl amine salts that are dissolved in an inert, organic solvent. The cadmium ions are removed from the acid, aqueous phase and are enriched in the organic phase. The cadmium-containing organic phase, subsequently, is re-extracted with an aqueous salt solution, with the cadmium ions migrating from the organic phase into the aqueous phase. The process is particularly suitable for extracting cadmium from concentrated, highly acid aqueous solutions.

    摘要翻译： 本发明涉及借助于溶解在惰性有机溶剂中的烷基胺盐，通过液/液萃取从酸，特别是含P2O5的溶液中除去镉的方法。 从酸，水相中除去镉离子，富含有机相。 随后，含镉的有机相用盐水溶液重新萃取，镉离子从有机相迁移到水相中。 该方法特别适用于从浓缩的高酸性水溶液中提取镉。

    Method for making phenol-formaldehyde resins flame-resistant
    8.
    发明授权
    Method for making phenol-formaldehyde resins flame-resistant 失效
    制造苯酚 - 甲醛树脂的方法是阻燃的

    公开(公告)号：US5607990A

    公开(公告)日：1997-03-04

    申请号：US211432

    申请日：1994-07-11

    申请人： Karlheinz Dorn ,  Klaus Frankenfeld ,  Hans-Dieter N agerl ,  Klaus Sommer

    发明人： Karlheinz Dorn ,  Klaus Frankenfeld ,  Hans-Dieter N agerl ,  Klaus Sommer

    IPC分类号： C08G8/04 ,  C08G8/10 ,  C08G8/28 ,  C08L61/10 ,  C08K5/49

    CPC分类号： C08G8/28

    摘要： In the method described, one or more halogen-free phosphorus compounds are incorporated in the precondensed resins before the final resin-curing stage. During final curing, the phosphorus compounds are bound by covalent bonds into the resin structure and/or are trapped in the resin structure as such or in the form of aggregates or condensates.

    摘要翻译： PCT No.PCT / EP92 / 02320 Sec。 371日期：1994年7月11日 102（e）日期1994年7月11日PCT提交1992年10月8日PCT公布。 公开号WO93 / 07192 日期1994年4月15日在所述方法中，在最终树脂固化阶段之前，将一种或多种无卤磷化合物引入预稠化树脂中。 在最终固化期间，磷化合物通过共价键结合到树脂结构中和/或以这种形式或以聚集体或冷凝物的形式被捕获在树脂结构中。