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萃取au
相关语句
  extraction of au
     EXTRACTION OF Au(CN) - 2 BY USING PHOSPHINE OXIDEX
     膦氧化物萃取Au(CN)_2~-
短句来源
     Synergic Extraction of Au(Ⅲ) by Primary Amine N1923 and Triphenylphosphine Oxide
     伯胺N1923和三苯基氧化膦萃取Au(Ⅲ)
短句来源
     EXTRACTION OF Au(Ⅲ) WITH LAURYLAMINE
     月桂胺从盐酸介质中萃取Au(Ⅲ)
短句来源
     Tervaleat Au was extracted as HAuCl4 by PSO-ⅢA(3)-a constituent of petroleum sulfoxide(ISO-type Ⅱ),and the effect of diluent,acidity and concentration ofsulfoxide on the extraction of Au was observed.
     本文研究了石油亚砜(PSO-Ⅱ型)中的组分PSO-Ⅲ(3)萃取Au(Ⅲ)时,稀释剂、酸度和亚砜浓度对萃取率的影响。
短句来源
     Extraction of Au(Ⅲ)by di-n-hexylsulfide and its back extraction
     二-n-己基硫醚萃取Au(Ⅲ)和Au(Ⅲ)的反萃
短句来源
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  “萃取au”译为未确定词的双语例句
     The mechanism of extracting Au 3+ with PSO3e was also proposed here by studying their bonding condition with IR. The mechanism was H +3PSO (o) +mH 2O+AuCl -〔H·3PSO·mH 2O〕〔AuCl - 4〕 (o) .
     此外 ,根据红外光谱研究萃取物的成键情况 ,得出PSO3e萃取Au3+的机理为酸性缔合机理 :H+3PSO(o) +mH2 O +AuCl4- 〔H·3PSO·mH2 O·AuCl4〕(o)
短句来源
     Researching on the performance of PSO3D, PSO3E extracting Au~(3+) and their polarity
     石油亚砜中PSO3D,PSO3E的极性与萃取Au~(3+)的性能关系
短句来源
     This paper studied the performance of the two components of petroleum sulfoxides, PSO3D and PSO3E extracting Au 3+ in HCL medium.
     研究了石油亚砜其中 2个组分 PSO3 D,PSO3 E萃取 Au3+ 的性能。
短句来源
     The influence of the concentration of the extractant PSO3e and medium HCl on the extraction rate of Au 3+ was studied in this paper.
     研究了石油亚砜PSO3e萃取Au3+时 ,萃取剂浓度、盐酸浓度对萃取率的影响。
短句来源
     Effects of modifiers on Au(CN)_2~- solvent extraction by CTMAB
     CTMAB萃取Au(CN)_2~-体系中几种改性剂的对比
短句来源
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  相似匹配句对
     ? Au?
     、Au?
短句来源
     au and *. gif respectively.
     au和 * .
短句来源
     A Study of the Extraction of Gold(Ⅰ) with HDEHP or HEHEHP
     HDEHP和HEHEHP萃取Au(Ⅰ)的研究
短句来源
     EXTRACTION OF Au(Ⅲ) WITH LAURYLAMINE
     月桂胺从盐酸介质中萃取Au(Ⅲ)
短句来源
     HOP EXTRACTION
     啤酒花的萃取
短句来源
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  extraction of au
The extraction of Au(III), Pt(IV), and Pd(II) ions from aqueous hydrochloric acid solutions with solutions of bis(2-ethylhexyl) N-butyl-N-octylaminomethylphosphonate in chloroform and xylene was studied.
      
The total extraction of Au under these conditions was 96%, Ag 92%, and Pd and Pt 93% each.
      
It is established by investigations that the extraction of Au during percolation cyanidation attains 75-82%, and waste dumps can be used for their heap leaching.
      
The most suitable organic solution found for the extraction of Au, Pt and Pd and their determination with ICP is isoamyl alcohol.
      
The second implies selective quantitative extraction of Au using the extraction system 0.2 mol/l HCl/IBMK.
      
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Studied here is the thermodynamics in the extraction of AuCl4- with DNG fromhydrochloric acid medium. By investigating the influences of temperature and chloric ions upon the distribution ratio D of Au(III), it is concluded that the relationship between logD anb log[Cl-] at 25℃ when the initial concentration of DNG is 0.3 M is represented asand that between logD and 1/T, at 25℃, when the initial concentration of DNG and chloric ions are respectively 0.02 M and 0.1 M is shown asThe values of thermodynamic function...

Studied here is the thermodynamics in the extraction of AuCl4- with DNG fromhydrochloric acid medium. By investigating the influences of temperature and chloric ions upon the distribution ratio D of Au(III), it is concluded that the relationship between logD anb log[Cl-] at 25℃ when the initial concentration of DNG is 0.3 M is represented asand that between logD and 1/T, at 25℃, when the initial concentration of DNG and chloric ions are respectively 0.02 M and 0.1 M is shown asThe values of thermodynamic function at 25℃ are as follows

本文研究了DNG在盐酸介质中萃取Au(Ⅲ)的热力学过程.通过考察氯离子浓度和温度对Au(Ⅲ)分配比的影响,测定出萃取反应的平衡常数K,焓变△H~0,自由能变化△G~0和熵变△S~0.

Determination of trace gold in iron, antimony and tin by extraction-atomic absorption spectrometry with diisooctylsulfide-sulphonated kerosene is simple and rapid. The influence of thirty seven elements on the determination of gold was studied. It was found that most of them did not affect the determination. The selectivity of extractant is high and only Au,Pd, Hg ete.are extracted. Antimony and tin do not affect the determination of gold if they are complexed with tartaric acid. The precision of this method...

Determination of trace gold in iron, antimony and tin by extraction-atomic absorption spectrometry with diisooctylsulfide-sulphonated kerosene is simple and rapid. The influence of thirty seven elements on the determination of gold was studied. It was found that most of them did not affect the determination. The selectivity of extractant is high and only Au,Pd, Hg ete.are extracted. Antimony and tin do not affect the determination of gold if they are complexed with tartaric acid. The precision of this method is about ±3%.

二异辛基硫醚-磺化煤油萃取-原子吸收光谱法测定铁、锑和锡中微量金是一个快速、简便的方法。我们研究了37种元素对测定金的影响,发现大部分元素都没有干扰。该萃取剂选择性高,它仅萃取Au、Pd和Hg等几种元素。锑和锡加酒石酸掩蔽后不再干扰测定。本法精密度约为±3%。

The extraction of gold from a medium of HCl with sulfolane(THSDO)in chloroform has been studied.The acidity of water phase,phase contact time, phase ratio and concentration of extractant affecting the extraction are investigated The result shows that extraction yield reaches over 97%with the following choice. pH 3.0-4.6,phase ratio 1:1, 10 min.and 0.1 M THSDO.A back-extraction yield about 98% can be reached by adding a mixture solution of 0.5 M NaOH and 1.0 M Na2SO3 to the organic phase loading with Au(Ⅲ)to...

The extraction of gold from a medium of HCl with sulfolane(THSDO)in chloroform has been studied.The acidity of water phase,phase contact time, phase ratio and concentration of extractant affecting the extraction are investigated The result shows that extraction yield reaches over 97%with the following choice. pH 3.0-4.6,phase ratio 1:1, 10 min.and 0.1 M THSDO.A back-extraction yield about 98% can be reached by adding a mixture solution of 0.5 M NaOH and 1.0 M Na2SO3 to the organic phase loading with Au(Ⅲ)to adjust the pH to 2.0.The extractive constituent of AuCl3.THSDO is determined by the method of distribution ratio.The sulfolane has been proved to be an extractant with stronger and faster extraction ability, good stability and ease for back-extraction.

本文对环丁砜—氯仿溶液从盐酸介质中萃取Au(Ⅲ)进行了研究。探讨了水相酸度、相接触时间、相比及萃取剂浓度诸因素对萃取的影响。研究表明,在pH=3~4.6、Vo/Vw=1∶1,萃取率可达97%以上。在负载Au(Ⅲ)的有机相中,加入[NaOH]=0.5mol·L~(-1)和[Na_2SO_3]=1.0mol·L~(-1)的混合溶液进行反萃取,调到pH=2.0时,反萃取率可达98%左右。根据分配比法确定萃合物的组成为AuCl_3·THSDO。由此可见,环丁砜—氯仿溶液对盐酸介质中的Au(Ⅲ)萃取能力强、速度快、稳定性好、反萃容易,可望用于实际工艺中。

 
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