中华医学超声杂志

应用化学 ›› 2011, Vol. 28 ›› Issue (11): 1337-1339.DOI: 10.3724/SP.J.1095.2011.00693

• 研究简报 • 上一篇    下一篇

液相废催化剂中铂的硫脲萃取回收工艺及应用

秦高飞1,2,周莹1,罗芩3,蒋文伟1*,王吉德2,杨琴3   

  1. (1.四川大学化学与化工学院 成都 610200;
    2.新疆大学化学与化工学院 乌鲁木齐;3.成都惠恩精细化工有限责任公司 成都)
  • 收稿日期:2010-11-22 修回日期:2011-01-10 出版日期:2011-11-10 发布日期:2011-11-10
  • 通讯作者: 蒋文伟，教授; Tel:028-85998091; Fax:028-85998013; E-mail:jdw0958@sina.com; 研究方向：精细有机合成和工艺催化

Process and Application of Recovering Platinum from Used Liquid-phase Catalysts by Solvent Extraction with Thiourea

QIN Gaofei1,2, ZHOU Ying1, LUO Qin3, JIANG Wenwei1*, WANG Jide2 ,YANG Qin3   

  1. (1.School of Chemistry and Chemical Engineering,Sichuan University,Chendu 610200;
    2.School of Chemical Engineering,Xinjiang University,Urumqi;
    3.Chengdu Hui′en Fine Chemical Co.,Ltd.,Chengdu)
  • Received:2010-11-22 Revised:2011-01-10 Published:2011-11-10 Online:2011-11-10
  • Contact: Jiang Wenwei

PDF

1060

被引次数

6 | 1

摘要：

用酸性硫脲溶液萃取乙炔氢氯化失活催化剂中的铂离子，得到最佳回收的工艺参数，当萃取相比（A/O）为1，硫脲浓度为0.2 mol/L，盐酸浓度为0.5~0.6 mol/L时，萃取率达到98%以上；萃取后的有机相性质无改变，可重复使用，一次萃取后合成催化剂可使乙炔转化率达70%以上。

关键词: 酸性硫脲溶液, 均相催化剂, 萃取, 铂

Abstract:

The Pt ion was extracted in the deactived catalyst for the hydrochlorination reaction of ethyne by acidic thiourea solution. The result shows that the extraction ratio is over 98% when the extraction phase volume ratio approaches 1, the concentration of thiourea is 0.2 mol/L and hydrochloric acid concentration is between 0.5 and 0.6 mol/L. Besides, there are some advantages such as keeping the organic phase composition. Organic phase can be reuses, and the ethyne conversion ratio is over 70% by using the fresh catalyst in the same organic phase.

Key words: Acidic thiourea solution, liquid-phase catalysts, solvent extraction, platinum

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