首页> 外文会议>International Mineral Processing Congress >Structural Characterization and Mechanism of a Synergistic Reagents Combination: Amyl-xanthate, Butyl-dithiophosphate and N, N-diethylddithiocarbamate Ester
【24h】

Structural Characterization and Mechanism of a Synergistic Reagents Combination: Amyl-xanthate, Butyl-dithiophosphate and N, N-diethylddithiocarbamate Ester

机译:协同试剂组合的结构表征和机理:戊酸黄原酸酯,丁基二硫代磷酸酯和N,N-二乙基二硫代氨基甲酸酯

获取原文

摘要

The study of synergistic reagents combination of mineral floatation is more and more important with the decreasing of bonanzas now. In order to determine the chemical reaction mechanism, here we present the synergistic reagents combination: amyl-xanthate, butyl-dithiophosphate and N,N-diethyldithiocarbamate ester, which dissolved by different organic solvents. The reagents were applied by an Anhui mine to float low-grade covellite as a substitute for ethyl-xanthate. One reaction products Na2HPSO3·5H2O (disodium hydrogen-thiophosphate pentahydrate) which was recrystalized and measured by X-ray diffraction analysis. In its crystal structure, the two crystallographically different Na ions are six-coordinated and are bridged by two covalent bonds with the O atoms of water molecules to give a basket unit. However, we can't get Na2HPSO3 · 5 H2O by combining butyl-dithiophosphate and N,N-diethyldithiocarbamate ester under the same condition.This discovery may provides a intuitionistic evidence that in the process of reaction, the three compounds would cooperate with each other, but the decisive reaction may be the hydrolyzation of amyl-xanthate.
机译:随着矿渣的减少,对矿物浮选的协同试剂组合的研究越来越重要。为了确定化学反应机理,在这里我们提出了协同试剂组合:戊二酸黄原酸酯,丁基二硫代磷酸酯和N,N-二乙基二硫代氨基甲酸酯,它们被不同的有机溶剂溶解。该试剂是由安徽某矿山使用的,用于浮选低级Covellite来代替黄原酸乙酯。一种反应产物Na 2 HPSO 3·5H 2 O(氢-硫代磷酸氢二钠五水合物)被重结晶并通过X射线衍射分析进行测量。在其晶体结构中,两个在晶体学上不同的Na离子是六配位的,并通过两个共价键与水分子的O原子桥接,形成一个篮子单元。但是,在相同条件下,将丁基二硫代磷酸酯与N,N-二乙基二硫代氨基甲酸酯混合,无法得到Na2HPSO3·5 H2O。这一发现可能提供了直观的证据,表明在反应过程中,这三种化合物会相互配合。 ,但决定性的反应可能是戊基黄原酸酯的水解。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号