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萃取     
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  extraction
    Research on Mechanism and Prevention of Interfacial Emulsion Formation in Copper Solvent Extraction Process
    铜溶剂萃取界面乳化机理及防治研究
短句来源
    Study on Recovery of Precious Metals-Gold, Palladium, Platinum from Secondary Resourcse by Solvent Extraction
    溶剂萃取法从二次资源中回收贵金属金、钯、铂的研究
短句来源
    Separation and Recovery of Precious Metals from Waste Feed Containing Precious Metals with Solvent Extraction
    溶剂萃取法从贵金属废料液中分离回收贵金属的研究
短句来源
    SEPARATION AND RECOVERY OF URANIUN FROM ZIRCON BY SOLVENT EXTRACTION
    用溶剂萃取法分离和回收锆英石中铀的工艺研究
短句来源
    THE EXTRACTION BEHAVIOR OF VANADIUM BY N263
    N263对钒的萃取性能
短句来源
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  extracting
    Process of Eliminating Fluorine and Extracting Cerium(Ⅳ) fromMianning Bastnaesite
    冕宁氟碳铈矿除氟萃取铈(Ⅳ)工艺研究
短句来源
    Application of Extractive Technology in Extracting Gold from Anode Slime
    萃取技术在铜阳极泥提金中的应用
短句来源
    Online Solvent Extracting Ca from La in La/Ce Separation Process
    萃取法Ca/La在线分离工艺
短句来源
    Advance in Study on Extracting Rare Earth Elements by Naphthenic Acid
    稀土元素的环烷酸萃取研究进展
短句来源
    Study and Application of Extracting Co from Ni with Cyanex 272
    Cyanex-272在溶剂萃取分离钴镍中的研究与应用
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  solvent extraction
    Research on Mechanism and Prevention of Interfacial Emulsion Formation in Copper Solvent Extraction Process
    铜溶剂萃取界面乳化机理及防治研究
短句来源
    Study on Recovery of Precious Metals-Gold, Palladium, Platinum from Secondary Resourcse by Solvent Extraction
    溶剂萃取法从二次资源中回收贵金属金、钯、铂的研究
短句来源
    Separation and Recovery of Precious Metals from Waste Feed Containing Precious Metals with Solvent Extraction
    溶剂萃取法从贵金属废料液中分离回收贵金属的研究
短句来源
    SEPARATION AND RECOVERY OF URANIUN FROM ZIRCON BY SOLVENT EXTRACTION
    用溶剂萃取法分离和回收锆英石中铀的工艺研究
短句来源
    International Solvent Extraction Conference of 1983
    一九八三年国际溶剂萃取会议
短句来源
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  extract
    A NEW EXTRACTANT STYRYLPHOSPHONIC ACID MONO ESTER.Ⅰ.EXTRACT SEPARATION OF COPPER COBALT AND NICKEL BY B312
    新型萃取剂苯乙烯膦酸单酯Ⅰ.用B312萃取分离铜、钴和镍
短句来源
    SELECTIVELY EXTRACT COPPER FROM COPPER, IRON AND ZINC ACID SOLUTION
    从铜铁锌酸性液中选择性萃取
短句来源
    Ga and Ge were extracted at a pH valueof 1.5 and 1 respectively with a extract agent which was composed of 10% P2o4 and 90% sulfonated kerosene and 1.5%YW-100. the total recovery of Ga and Ge reached 93.3 % and 89.2 %, respectively.
    采用萃取工艺分离镓、锗,镓、锗萃取剂为10%P_(204)+90%磺化煤油+1.5%YW—100,萃取镓的pH为1.5,锗为1.0。 镓和锗的总回收率可分别达到93.3%和89.2%。
短句来源
    The mechanism of solvent extraction of phosphorus and arsenic from weak alkaline sodium rungstate solution has been investigated. The results showed that primary amine N1923 is unable to extract single HPO_4~(2-) and HAsO_4~(2-) ions from weak alkaline solution, and that both phosphorus and arsenic are extracted from sodium tungstate solution in the form of heteropolytungstic acids.
    在弱碱性条件下,伯胺N1923不萃取单独的HPO_4~(2-)和HAsO_4O_(2-)离子,钨酸钠溶液中的磷和砷完全以磷—钨和砷—钨杂多酸的形态被伯胺N1923萃取
短句来源
    The paper reports on the mechanisms of solvent extraction of Au(Ⅲ) in HCl media with n-trioctylamine (TOA)-CCl4. It was determined that the extract is TOAH·AuCl4 TOAH·Cl at point of balance and TOAH·AuCl4 at saturating point by means of distribution ratio and saturating capacity.
    研究了TOA-CCl4体系萃取盐酸介质中Au(Ⅲ)的机理。 用分配比法及饱和容量法确定平衡萃合物组成为TOAH·AuCl4TOAH·Cl,饱和萃合物组成为TOAH·AuCl4;
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  extraction
The water-soluble glucan was obtained from Pleurotus florida fruit bodies by hot water extraction, ethanol precipitation, DEAE cellulose dialysis and Sephadex G-75 gel filtration.
      
The acid treatment of LiAlTiO4 caused Li+ extraction ratio to change from 28% to 72%, while the dissolution of Al is less than 6.8%.
      
Sample pretreatment microfluidic chip for DNA extraction from rat peripheral blood
      
A sample pretreatment microfluidic chip was described based on the principle of solid phase extraction and micro electro mechanical system technology.
      
A new feature extraction method using the amplitude fluctuation property of target HRRP for radar automatic target recognition
      
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  extracting
This paper provides a novel way for extracting the new sorting feature of radar signals.
      
A novel scheme for extracting the global scattering center model of radar targets is proposed in this paper.
      
We then present the arithmetic for dynamic automatic identification of standing tree limbs, extracting basic growth characteristics of the standing trees such as the form, size, degree of bending and their relative spatial position.
      
Wavelet design for extracting weak fault feature based on lifting scheme
      
Simulation and engineering results confirm that the proposed method is better than other wavelet methods for extracting weak fault feature.
      
更多          
  solvent extraction
Solvent extraction-atomic absorption determination of chromium(VI) in soils
      
Other techniques for solving the above problem, namely, an increase in the temperature of the test solution temperature or the use of solvent extraction, bioaccumulation, and unusual analytical procedures are also considered.
      
A procedure was developed for determining germanium as a Rhodamine 6G-8-molybdogermanic heteropoly acid ion-pair complex in solutions obtained after germanium separation by solvent extraction from the matrix of various Ge-containing samples.
      
The procedure accuracy was evaluated by determining germanium in a reference standard sample of steel after preliminary separation by solvent extraction.
      
Solvent extraction with dithiophosphoric acids was proposed for the separation of selenium from the interferents.
      
更多          
  extract
Activity was not recorded for hexane extract, against A.
      
aureus in lower concentration of chloroform extract.
      
Methanol extract showed more activity amongst all the solvent extracts, particularly remarkable activity recorded against gram-positive bacteria.
      
An immunoenhancing polysaccharide isolated from the hot aqueous extract of mature pods of Moringa oleifera was found to contain only D-glucose as a monosaccharide constituent.
      
STRUCTURAL CHARACTERISATION OF AN IMMUNOMODULATING POLYSACCHARIDE ISOLATED FROM AQUEOUS EXTRACT OF PLEUROTUS FLORIDA FRUIT-BODIE
      
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  其他


Under the guidance of the principle of independence and self-reliance, the

本文叙述了在独立自主、自力更生的原则指引下,研制成功酰胺型萃取剂,以及应用于稀有金属的提取和分离的许多有成效的示例。二烷基乙酰胺是属于以羰基为官能团的弱碱性萃取剂,其特点是容易合成,物理化学性能好,选择性高。现巳成功地应用于铌钽分离,铊的提取,钼铼分离和萃取镓,在有关工厂生产实践中效果良好。

The technological condition of separating U and Zr in sulphuric acid solution (3-5N) were studied. The synergistic extraction system of P291+TRPO offered high selectivity for extraction of uranium has been found. The separation factor of U and Zr can reach 10~3. According to the optimum separation conditions, the cascadeconnected batch simulating experiment with ordinary laboratory separatory funnels and the small-scale experiment with mixer-setter were performed. The technological process of separation and...

The technological condition of separating U and Zr in sulphuric acid solution (3-5N) were studied. The synergistic extraction system of P291+TRPO offered high selectivity for extraction of uranium has been found. The separation factor of U and Zr can reach 10~3. According to the optimum separation conditions, the cascadeconnected batch simulating experiment with ordinary laboratory separatory funnels and the small-scale experiment with mixer-setter were performed. The technological process of separation and recovery of uranium from zircon has been developed.

研究了在3~5NH_2SO_4介质中萃取分离铀、锆的工艺条件,发现P291+TRPO协萃体系对铀具有高的选择性,单级分离系数βu/zr可达10~3。在研究铀,锆分离工艺条件的基础上,进行了串级实验和小型混合澄清槽的连续流动试验,并建立了从锆英石中分离和回收铀的相应工艺流程

CL-P204 Resins are newly developed materials for extraction chromatograph of inorganic salts in columns. In this study, CL-P204 resins containing HDEHP are used to separate rare earths from each other. The effects of the acid concentration of the eluants(1.5, 1.6, 1.7, 1.8 and 1.9N HC_1), flow rates(0.65, 1.0ml/cm~2. min), loading of rare earths(0.65, 1.3, 1.95% of the saturation weight), and the column ratios(L/Φ 13, 37) on the separation of the Tb-Dy pair have been studied. A group of straight lines with slope...

CL-P204 Resins are newly developed materials for extraction chromatograph of inorganic salts in columns. In this study, CL-P204 resins containing HDEHP are used to separate rare earths from each other. The effects of the acid concentration of the eluants(1.5, 1.6, 1.7, 1.8 and 1.9N HC_1), flow rates(0.65, 1.0ml/cm~2. min), loading of rare earths(0.65, 1.3, 1.95% of the saturation weight), and the column ratios(L/Φ 13, 37) on the separation of the Tb-Dy pair have been studied. A group of straight lines with slope about 3 are obtained using Log D plotted against Log[H~+]. This shows that one rare earth ion can displace 3 hydrogen ions, when p204 on resins is used to extract the rare earths. The ratio of the moles of rare earths to p204 which determined by the saturation method is 1∶3 and the reaction is expressed by the following equation: Ln~(+3)+1.5(H_2A_2)=LnA_3+3H~+

用萃淋树脂CL-P204作为萃取色层的固定相研究了淋洗液HCl酸度(1.5~1.9N),流速(0.65~1.05ml/cm~2·min),负载量(占饱和吸附量的0.65%、1.3%与1.95%)与柱长径比L/φ(17、37)对相邻稀土元素铽与镝分离的影响。用log D对log[H~+]作图得一组直线,其斜率~3。说明萃淋树脂上的P204萃取稀土时一个稀土离子置换三个氢离子。饱和吸附量法测得树脂上的P204与稀土形成的络合物的克分子比是3:1。其反应式可能是:Ln_(+3)+1.5(H_2A_2)=LnA_3+3H~+。

 
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