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1.发明授权
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。
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公开(公告)号：US5665149A
公开(公告)日：1997-09-09
申请号：US576673
申请日：1995-12-21
CPC分类号： C09C1/0081 , C09D5/084 , C01P2004/64 , C01P2004/80
摘要： An active heavy metal-free and non-toxic anti-corrosion pigment based on phosphate, which is particularly environmentally friendly, is a mixture of .beta.-tricalcium phosphate and tertiary magnesium phosphate or dicalcium phosphate dihydrate. It has good compatibility with the usual raw materials of paints and additives.
摘要翻译： 基于磷酸盐的活性无重金属和无毒性防腐颜料，其特别环境友好，是磷酸三钙和磷酸三氢镁或二水合磷酸二钙的混合物。 它与通常的涂料和添加剂原料具有良好的相容性。
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公开(公告)号：US20080081856A1
公开(公告)日：2008-04-03
申请号：US11952364
申请日：2007-12-07
CPC分类号： C07D295/023 , C07C277/00 , C07D251/54 , C07D251/56 , C08K5/521 , C09K21/12 , C07C279/02
摘要： A simple and economical process for the preparation of polyphosphates of organic bases consists of reacting a mixture of phosphorus pentoxide and at least one organic nitrogen base with at least one compound which releases water accompanied by decomposition under the prevailing conditions in such a molar ratio that upon decomposition of the water-releasing compound at most essentially 2 mol. water are produced per mol. phosphorus pentoxide. Thus-prepared polyphosphates are particularly suitable as flame-protection agents for plastics.
摘要翻译： 用于制备有机碱的多磷酸盐的简单和经济的方法是将五氧化二磷和至少一种有机氮碱的混合物与至少一种在主要条件下以水分解的方式使水分解并伴随分解的化合物反应， 释放水的化合物的分解最多为2mol。 每摩尔产生水。 五氧化二磷。 如此制备的聚磷酸盐特别适合用作塑料的防火剂。
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公开(公告)号：US07893142B2
公开(公告)日：2011-02-22
申请号：US11952364
申请日：2007-12-07
申请人： Karl Gotzmann , Liselotte Götzmann, legal representative , Hans-Dieter Nägerl , Thomas Futterer
CPC分类号： C07D295/023 , C07C277/00 , C07D251/54 , C07D251/56 , C08K5/521 , C09K21/12 , C07C279/02
摘要： A simple and economical process for the preparation of polyphosphates of organic bases consists of reacting a mixture of phosphorus pentoxide and at least one organic nitrogen base with at least one compound which releases water accompanied by decomposition under the prevailing conditions in such a molar ratio that upon decomposition of the water-releasing compound at most essentially 2 mol. water are produced per mol. phosphorus pentoxide. Thus-prepared polyphosphates are particularly suitable as flame-protection agents for plastics.
摘要翻译： 用于制备有机碱的多磷酸盐的简单和经济的方法是将五氧化二磷和至少一种有机氮碱的混合物与至少一种在主要条件下以水分解的方式使水分解并伴随分解的化合物反应， 释放水的化合物的分解最多为2mol。 每摩尔产生水。 五氧化二磷。 如此制备的聚磷酸盐特别适合用作塑料的防火剂。
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