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41. 发明授权

US3996336A Purification of phosphoric acid 失效
标题翻译：磷酸的纯化
公开(公告)号：US3996336A
公开(公告)日：1976-12-07
申请号：US592188
申请日：1975-07-01
申请人： Bernhard Wojtech , Klaus-Peter Ehlers , Wolfgang Scheibitz
发明人： Bernhard Wojtech , Klaus-Peter Ehlers , Wolfgang Scheibitz
IPC分类号： C01B25/234 , C01B25/18 , C01B25/46 , C01B25/16
CPC分类号： C01B25/18 , C01B25/464
摘要： Phosphoric acid is purified. To this end, it is dissolved in an organic solvent completely miscible with water. More particularly, the phosphoric acid is mixed with a solvent having a boiling point higher than that of water or higher than that of the resulting azeotrope; the resulting solution is heated to temperatures between the boiling point of water or the azeotrope and that of the solvent for as long a period as necessary to distillatively free the solution from the bulk of uncombined water therein; and the phosphoric acid solution is separated from residue.
摘要翻译：纯化磷酸。为此，将其溶解在与水完全混溶的有机溶剂中。更具体地说，将磷酸与沸点高于水或高于所得共沸物的溶剂混合; 将所得溶液加热到水或共沸物的沸点与溶剂沸点之间的温度长达一段时间，以将溶液从其中的大部分未混合水蒸馏出来; 并将磷酸溶液与残留物分离。

42. 发明授权

US3947499A Phosphoric acid purification 失效
标题翻译：磷酸精制
公开(公告)号：US3947499A
公开(公告)日：1976-03-30
申请号：US437891
申请日：1974-01-30
申请人： Robert Harry Edwards , Thomas Alan Williams , Kenneth Hall
发明人： Robert Harry Edwards , Thomas Alan Williams , Kenneth Hall
IPC分类号： C01B25/234 , C01B25/46 , C07C43/00 , C01B15/16 , C01B25/26
CPC分类号： C01B25/46 , C01B25/234
摘要： A solid anhydrous 1:1 molar compound of phosphoric acid and diisopropyl ether is prepared from a mixture of the ether and phosphoric acid in a molar ratio (R:1) of 0.6:1 to 1.4:1 at a temperature at least as low as the crystallization temperature (T.degree.C) governed by the relationship T = 25(1.2-R). Treatment of the compound with water or a base produces purified acid or a phosphate respectively.
摘要翻译：在乙烯与磷酸的摩尔比（R：1）为0.6:1至1.4:1的混合物中，在至少低至少为1：1的温度下，制备磷酸和二异丙醚的固体无水1:1摩尔化合物结晶温度（T°C）由关系T = 25（1.2-R）决定。用水或碱处理化合物分别产生纯化的酸或磷酸盐。

43. 发明授权

US3635669A Method of producing concentrated phosphoric acid compounds from phosphate rock 失效
标题翻译：从磷酸盐岩生产浓缩的磷酸盐化合物的方法
公开(公告)号：US3635669A
公开(公告)日：1972-01-18
申请号：US3635669D
申请日：1968-12-26
申请人： B D BOHNA & CO INC
发明人： RUBIN ALLEN G
IPC分类号： C01B25/01 , C01B25/18 , C01B25/234 , C01B25/28 , C01B25/46 , C05B7/00 , C01B25/30 , C01B25/32
CPC分类号： C05B7/00 , C01B25/185 , C01B25/234
摘要： Phosphate rock is digested with molten ammonium bisulfate and between 5 and 16 percent by weight of water to form a solid reaction product. The water is added to the mixture of phosphate rock and ammonium bisulfate either before, during or after the digestion reaction between the phosphate rock and molten ammonium bisulfate. Concentrated phosphoric acid is extracted from the ground, solid reaction product with a nonaqueous, polar, oxygencontaining organic solvent having between one and ten carbon atoms. A phosphoric acid compound or in other words a phosphate is then separated from the solvent either in the form of concentrated phosphoric acid by evaporating the solvent, or in the form of a phosphate salt by adding a base to the extract and precipitating the phosphate salt.
摘要翻译：磷酸盐岩用熔融硫酸氢铵和5至16重量％的水消化以形成固体反应产物。在磷酸盐岩和熔融硫酸氢铵之间的消解反应之前，期间或之后，将水加入到磷酸盐岩和硫酸氢铵的混合物中。浓缩的磷酸从地面萃取，固体反应产物与具有1-10个碳原子的非水，极性的含氧有机溶剂。磷酸化合物，即磷酸盐然后通过蒸发溶剂或以磷酸盐的形式从溶剂中以浓磷酸形式从溶剂中分离，通过向提取物中加入碱和沉淀磷酸盐。

44. 发明授权

US3443889A Method of synthesis of alkali metal salts 失效
标题翻译：碱金属盐的合成方法
公开(公告)号：US3443889A
公开(公告)日：1969-05-13
申请号：US3443889D
申请日：1964-08-17
申请人： KAISER ALUMINIUM CHEM CORP
发明人： CLIFFORD WARREN E
IPC分类号： C01B17/62 , C01B25/46 , C01D5/02 , C01D5/14 , C01D7/16 , C01D9/04 , C01F7/34 , C07C51/41 , C01D7/28
CPC分类号： C01D9/04 , C01B17/62 , C01B25/46 , C01D5/02 , C01D5/14 , C01D7/16 , C01F7/34 , C07C51/412 , Y02P20/142 , Y02P20/582

45. 发明授权

US3367749A Purifying phosphoric acid using an amine extractant 失效
标题翻译：使用胺萃取剂纯化磷酸
公开(公告)号：US3367749A
公开(公告)日：1968-02-06
申请号：US26002963
申请日：1963-02-20
申请人： MONSANTO CO
发明人： KOERNER ERNEST L , ELERINGTON SAUNDERS
IPC分类号： C01B25/237 , C01B25/46
CPC分类号： C01B25/2372 , C01B25/466

46. 发明授权

US2914380A Production of ca(h2po4)2 失效
标题翻译：生产ca（h2po4）2
公开(公告)号：US2914380A
公开(公告)日：1959-11-24
申请号：US57594256
申请日：1956-04-04
申请人： HORIZONS INC
发明人： VICKERY RONALD C
IPC分类号： C01B25/46
CPC分类号： C01B25/46

47. 发明授权

US2488733A Alkaline earth halophosphate phosphors 失效
公开(公告)号：US2488733A
公开(公告)日：1949-11-22
申请号：US76144047
申请日：1947-07-16
申请人： GEN ELECTRIC
发明人： MCKEAG ALFRED H , RANBY PETER W
IPC分类号： C01B25/46 , C01F11/22 , C09K11/08
CPC分类号： C01B25/46 , C01F11/22 , C09K11/0866

48. 发明授权

US5678242A Membrane extraction with thermodynamically unstable diphosphonic acid derivatives 失效
标题翻译：用热力学不稳定的二膦酸衍生物进行膜提取
公开(公告)号：US5678242A
公开(公告)日：1997-10-14
申请号：US250001
申请日：1994-07-07
申请人： Earl Philip Horwitz , Ralph Carl Gatrone , Kenneth LaVerne Nash
发明人： Earl Philip Horwitz , Ralph Carl Gatrone , Kenneth LaVerne Nash
IPC分类号： C02F1/62 , B01D61/38 , C01B25/46 , C01F17/00 , C01G1/00 , C02F1/68 , C07F9/38 , C07F9/6574 , C07F11/00 , C07F15/02 , C07F15/06 , C07F19/00 , C22B3/38 , G21F9/04 , G21F9/06 , C01G43/00
CPC分类号： C07F9/3839 , B01D61/38 , C01B25/461 , C01F17/0006 , C02F1/683 , C07F11/005 , C07F15/025 , C07F15/065 , C07F19/005 , C22B3/0067 , G21F9/04 , G21F9/06 , Y02P10/234
摘要： Thermodynamically-unstable complexing agents which are diphosphonic acids and diphosphonic acid derivatives (or sulphur containing analogs), like carboxyhydroxymethanediphosphonic acid and vinylidene-1,1-diphosphonic acid, are capable of complexing with metal ions, and especially metal ions in the II, III, IV, V and VI oxidation states, to form stable, water-soluble metal ion complexes in moderately alkaline to highly-acidic media. However, the complexing agents can be decomposed, under mild conditions, into non-organic compounds which, for many purposes are environmentally-nondamaging compounds thereby degrading the complex and releasing the metal ion for disposal or recovery. Uses for such complexing agents as well as methods for their manufacture are also described.
摘要翻译：作为二膦酸和二膦酸衍生物（或含硫类似物）的热力学不稳定络合剂，如羧基羟基甲烷二膦酸和亚乙烯基-1,1-二膦酸，能够与金属离子，特别是II，III中的金属离子络合，IV，V和VI氧化态，以在中等碱性至高酸性介质中形成稳定的水溶性金属离子络合物。然而，络合剂可以在温和条件下分解成非有机化合物，其为许多目的是环境破坏化合物，从而降解复合物并释放金属离子以进行处置或回收。还描述了用于这种络合剂的用途以及其制造方法。

49. 发明授权

US4877594A Purification of phosphoric acid 失效
标题翻译：磷酸的纯化
公开(公告)号：US4877594A
公开(公告)日：1989-10-31
申请号：US283560
申请日：1988-12-13
申请人： Laurence W. Bierman , Michael L. Lopez , James E. Perkins, III
发明人： Laurence W. Bierman , Michael L. Lopez , James E. Perkins, III
IPC分类号： C01B25/46
CPC分类号： C01B25/461 , C01B25/462
摘要： A mixture of hydrophobic and hydrophilic extractants is used to separate phosphate values from impurities found in phosphoric acid. In one approach, impurities are removed from phosphoric acid and the phosphate values are recovered, by introducing polyphosphates and ammonium ions into the impure acid, and contacting the impure acid with a mixture of low and high molecular weight alcohols, one of which is hydrophilic and the other hydrophobic, in a single stage. The phosphate values segregate to the high molecular weight alcohol fraction, and the impurities segregate to the low molecular weight alcohol fraction. After separation of the alcohol solutions, the phosphate values and the impurities are separated from their respective extractant solutions, and the alcohols recirculated. Polyphosphates and ammonia are preferably provided by reacting a portion of the original feed acid with ammonia at elevated temperature in a pipe reactor.
摘要翻译：使用疏水和亲水萃取剂的混合物将磷酸盐与在磷酸中发现的杂质分离。在一种方法中，从磷酸中除去杂质，通过将多磷酸盐和铵离子引入不纯的酸中并将不纯的酸与低分子量和高分子量醇的混合物接触，其中一种是亲水的和另一个疏水，在一个阶段。磷酸盐分离成高分子量醇馏分，杂质分离成低分子量醇馏分。在分离醇溶液后，将磷酸盐值和杂质从它们各自的萃取剂溶液中分离出来，醇再循环。聚磷酸盐和氨优选通过使一部分原始进料酸与氨在升高的温度下在管式反应器中反应来提供。

50. 发明授权

US4678650A Process for making an alkali phosphate solution 失效
标题翻译：碱式磷酸盐溶液的制备方法
公开(公告)号：US4678650A
公开(公告)日：1987-07-07
申请号：US715167
申请日：1985-03-22
申请人： Reinhard Gradl , Gero Heymer
发明人： Reinhard Gradl , Gero Heymer
IPC分类号： C01B25/46 , C01B15/16
CPC分类号： C01B25/46
摘要： An aqueous alkali phosphate solution is made. An organic phase is countercurrently mixed with an aqueous phase, the two phases being used in a volume ratio larger than 1:1 and formed aqueous alkali phosphate solution is separated from the remaining organic phase. The two phases are mixed and reacted in a reaction zone comprised of a mixing and separating zone. The organic phase is continuously dispersed in the aqueous phase. A volume excess of aqueous phase is maintained in the mixing zone and the two phases are used in an overall quantity sufficient to provide a volume ratio of organic to aqueous phase of 4:6 to 2:8.
摘要翻译：制备磷酸碱水溶液。有机相与水相逆流混合，两相以体积比大于1:1使用，形成的碱式磷酸碱水溶液与剩余的有机相分离。将两相混合并在由混合和分离区组成的反应区中反应。有机相连续分散在水相中。在混合区中维持体积过量的水相，并且两相的使用量足以提供4:6至2:8的有机相与水相的体积比。

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