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1. 发明授权

US4965054A Process of extraction of gallium from aqueous solutions thereof 失效
标题翻译：从其水溶液中提取镓的方法
公开(公告)号：US4965054A
公开(公告)日：1990-10-23
申请号：US388261
申请日：1989-08-01
申请人： Roy G. Lewis
发明人： Roy G. Lewis
IPC分类号： C01G15/00
CPC分类号： C01G15/003 , Y10S423/14
摘要： An improved process of extraction of gallium from aqueous solutions thereof to provide for recovery of the gallium in a very pure form, either as the metal or as the hydroxide. The process involves two extraction steps and two strip or scrub steps employing different extractant in each extraction and an acidic strip step after the first extraction and a basic strip step after the second extraction. The first extraction involves the use of 8-hydroxyquinoline extractant while the second extraction employs an amine extractant. The extraction process is a liquid-liquid process in which the water insoluble extractant compounds are employed in a water insoluble, water immiscible, organic solvent.
摘要翻译：从其水溶液中提取镓的改进方法，以提供非常纯的形式的作为金属或氢氧化物的镓的回收。该方法涉及两次提取步骤和两次剥离或洗涤步骤，其中在每次萃取中采用不同的萃取剂，并在第一次萃取之后进行酸性条带步骤，以及在第二次萃取之后进行碱性条带步骤。第一次提取涉及使用8-羟基喹啉萃取剂，而第二次萃取采用胺萃取剂。提取方法是液 - 水方法，其中水不溶性萃取剂化合物用于水不溶性，水不混溶的有机溶剂中。

2. 外观设计

USD623121S1 Toolbox 有权
公开(公告)号：USD623121S1
公开(公告)日：2010-09-07
申请号：US29309868
申请日：2008-10-29
申请人： Roy G. Lewis
设计人： Roy G. Lewis

3. 发明授权

US4957714A Solvent extraction process 失效
公开(公告)号：US4957714A
公开(公告)日：1990-09-18
申请号：US187111
申请日：1988-04-28
申请人： Stephen M. Olafson , Roy G. Lewis , Gary A. Kordosky
发明人： Stephen M. Olafson , Roy G. Lewis , Gary A. Kordosky
IPC分类号： C01G3/00 , C22B3/30
CPC分类号： C22B3/0017 , C01G3/003 , Y02P10/234 , Y10S423/14
摘要： An improvement is disclosed in the solvent extraction process for recovering metal values, i.e. copper, from aqueous solutions, particularly aqueous solutions, containing copper and iron which may also include chloride, and more particularly to an improvement which provides for increased copper to iron ratios in the loaded organic extractant phase. The improvement comprises washing the loaded organic extractant phase prior to stripping of the copper values therefrom with an aqueous acidic scrub solution containing at least a portion of electrolyte.

4. 发明授权

US4563256A Solvent extraction process for recovery of zinc 失效
标题翻译：溶剂萃取工艺回收锌
公开(公告)号：US4563256A
公开(公告)日：1986-01-07
申请号：US687611
申请日：1984-12-31
申请人： R. Brantley Sudderth , Joseph M. Sierakoski , Roy G. Lewis
发明人： R. Brantley Sudderth , Joseph M. Sierakoski , Roy G. Lewis
IPC分类号： B01D11/04 , C01G3/00 , C01G9/00 , C22B3/00 , C22B3/26 , C22B3/30 , C22B19/20 , C25C1/12 , C25C1/16
CPC分类号： C01G3/003 , C01G9/003 , C22B3/0017 , Y02P10/234
摘要： A process for recovery of zinc values from aqueous ammoniacal solutions employing certain alkylsalicylaldoximes or acetophenoximes as the extractant. The method also provides a means for separation of the zinc and copper values present in the aqueous ammoniacal solution. The zinc and copper values are separately recovered from the organic phase by pH controlled stripping.
摘要翻译：使用某些烷基水杨酰肟或苯乙酮肟作为萃取剂从含水氨溶液中回收锌值的方法。该方法还提供了用于分离存在于氨水溶液中的锌和铜值的方法。锌和铜的值通过pH控制剥离从有机相分别回收。

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