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公开(公告)号:US20100210448A1
公开(公告)日:2010-08-19
申请号:US12733811
申请日:2008-12-03
申请人: Francois-Xavier Chiron , William Fullerton , Lesley Ann Key , Liam O'Neill , Stephen James Smith
发明人: Francois-Xavier Chiron , William Fullerton , Lesley Ann Key , Liam O'Neill , Stephen James Smith
CPC分类号: B01J38/68 , B01J23/30 , B01J23/92 , B01J27/188 , B01J27/285 , B01J35/002 , B01J35/023 , B01J35/1019 , B01J35/1061 , B01J38/06 , B01J38/52 , B01J38/56 , B01J38/74 , C07C1/24 , C07C2523/30 , C07C2527/18 , C22B34/365 , Y02P10/23 , Y02P20/52 , Y02P20/584 , C07C11/04
摘要: A process for recovering tungsten from a spent catalyst comprising a supported heteropolytungstic acid characterised in that the process comprises: (a) contacting the spent catalyst with an extractant selected from water, methanol, ethanol or a mixture of any two or more thereof for sufficient time to extract at least part of the heteropolytungstic acid therefrom; (b) separating the extractant containing heteropolytungstic acid from the treated spent catalyst; (c) contacting the extractant containing heteropolytungstic acid with a strong acid ion exchange resin to remove corrosion metals contained therein and (d) recovering the treated extractant containing heteropolytungstic acid for subsequent use.
摘要翻译: 从负载的杂多钨酸的废催化剂中回收钨的方法,其特征在于该方法包括:(a)将废催化剂与选自水,甲醇,乙醇或其任何两种或多种的混合物的萃取剂接触足够的时间 从其中提取至少部分的杂多钨酸; (b)从处理的废催化剂中分离含有杂多钨酸的萃取剂; (c)将含有杂多钨酸的萃取剂与强酸离子交换树脂接触以除去其中所含的腐蚀金属,和(d)回收含有杂多钨酸的经处理的萃取剂以供后续使用。