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    • 2. 发明授权
    • Composition and process for the solvent extraction of metals using aldoxime or ketoxime extractants
    • 使用醛肟或酮肟萃取剂萃取金属溶剂的组成和方法
    • US06733688B1
    • 2004-05-11
    • US09979942
    • 2001-11-27
    • Alan David SugarmanDomenico Carlo Cupertino
    • Alan David SugarmanDomenico Carlo Cupertino
    • C09K300
    • C22B15/0078C22B3/0017C22B3/0032Y02P10/234Y02P10/236
    • A solvent extraction composition is provided which comprises one or more orthohydroxyarylaldoxime or orthohydroxyarylketoxime and at least one dialkyl ester of an optionally substituted ethylene or polyethylene glycol and preferably a water immiscible organic solvent. The orthohydroxyarylaldoximes, or orthohydroxyarylketoximes commonly are of Formula (1), wherein R1 is hydrogen or a hydrocarbyl group, and R2 is an ortho-hydroxyaryl group; and the dialkyl esters of an optionally substituted ethylene or polyethylene glycol commonly are of Formula (2), wherein R7 and R8 are each independently an optionally substituted alkyl group; R9 to R20 are each independently hydrogen or optionally substituted hydrocarbyl; m, n and p are each independently 0, 1, 2, 3 or 4 provided that m+n+p is greater than or equal to 1; and q is 1, 2 or 3. Preferred orthohydroxyarylaldoximes are 5-(C9 to C14alkyl)-2-hydroxybenzaldoximes and preferred orthohydroxyarylketoximes are 5-(C9 to C14alkyl)-2-hydroxyacetophenone oximes. Preferred dialkyl esters of an optionally substituted ethylene or polyethylene glycol are branched dialkyl esters comprising from 10 to 100 carbon atoms, wherein R7 or R8 are branched alkyl groups. Processes for the extraction of metal values from aqueous acidic and ammoniacal solutions are also provided.
    • 提供溶剂萃取组合物,其包含一种或多种邻羟基芳基醛肟或邻羟基芳基酮肟和至少一种任选取代的乙烯或聚乙二醇的二烷基酯,优选与水不混溶的有机溶剂。 邻羟基芳基酮肟或邻羟基芳基酮肟通常具有式(1),其中R 1是氢或烃基,R 2是邻羟基芳基; 和任选取代的乙烯或聚乙二醇的二烷基酯通常为式(2),其中R 7和R 8各自独立地为任选取代的烷基; R 9至R 20各自独立地为氢或任选取代的烃基; m,n和p各自独立地为0,1,2,3或4,条件是m + n + p大于或等于1; 优选的邻羟基芳基醛肟是5-(C9至C14烷基)-2-羟基苯甲醛肟,优选的邻羟基芳基酮肟是5-(C9至C14烷基)-2-羟基苯乙酮肟。 任选取代的乙烯或聚乙二醇的优选二烷基酯是包含10-100个碳原子的支链二烷基酯,其中R 7或R 8是支链烷基。 还提供了从酸性和氨水溶液中提取金属值的方法。