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两段萃取
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  “两段萃取”译为未确定词的双语例句
     In the paper, process of two stage extraction distillation to separate cis - butadiene in which acetonitrile is to be used as solvent has been established and simulated by PRO/Ⅱ and HYSIM software.
     应用PRO/Ⅱ和HYSIM建立并模拟了以乙腈为溶剂的两段萃取精馏分离聚合级顺丁二烯的工艺流程。
短句来源
     TWO STAGE LUBE OIL FURFURAL EXTRACTION TECHNOLOGY
     润滑油糠醛精制两段萃取工艺的工业应用
短句来源
     Two stage extraction technology has been adopted in the furfural extraction unit at Shanghai Refinery of Gaoqiao Petrocheical Company to replace the original single step extraction.
     针对上海炼油厂润滑油糠醛精制装置塔板效率不高,精制深度和产品质量难以进一步提高的情况,将原单塔流程,改为双塔串联、溶剂分流的两段萃取新工艺。
短句来源
     By the technical reconstruction of changing lubricant processing sequence from the normal sequence to the opposite sequence,two stage extraction,furfural drying tower operating under a vacuum condition,direct transmit feeding between two units,optimize its heat exchange network,the energy consumption of the furfural refining unit decreased 23 percent from 1639MJ/t to 1261.9MJ/t in Yumen refining & petrochemical plant. The solvent unit consumption also decrease,and the process capacity increase with good economic benefit.
     玉门炼化总厂糠醛精制装置通过润滑油生产由正序改为反序、两段萃取工艺改造、糠醛干燥塔改为负压操作、装置间物料改直输、优化换热流程等措施,将装置能耗由1639MJ/t降到1261.9MJ/t,降低了23%,溶剂单耗下降,精制油收率和加工量也有所提高,取得了良好的经济效益。
短句来源
  相似匹配句对
     TWO STAGE LUBE OIL FURFURAL EXTRACTION TECHNOLOGY
     润滑油糠醛精制萃取工艺的工业应用
短句来源
     Experimental Research on Combustion Boiler with Two-stage combustion
     燃烧炉的实验研究
短句来源
     Two-Section Coubled—Cavity Semiconductor Lasers Zhang Shiqiao,Zhuang Wanru and Tan Shuming
     耦合腔半导体激光器
短句来源
     The recovery ratio of U (Pu) is greater than 99. 9%, and stage efficiency of extraction section of the mixer-settler is 95%.
     萃取槽的级效率为 95 %。
短句来源
     The efficiency of extraction stage ofthe mixer-settler is 95%.
     萃取槽的级效率为95%。
短句来源
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  two-stage extraction
Two-stage extraction preconcentration and HPLC determination of phenol and 1-naphthol in aqueous solutions
      
All blocks with individual background intensity values in a document image are first extracted using a two-stage extraction procedure.
      
After two-stage extraction separation, chemical yield of 90Y in the final aqueous phase was roughly 80%, while 90Sr radionuclide impurity in this phase containing carrier-free 90Y was 10-6%.
      
A two-stage extraction process for regenerating zinc from wash water in the manufacture of viscose fibres has been worked out on a pilot set-up.
      
Determination of Solute-Polymer Interaction Properties via Two-Stage Extraction
      
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The tbeory and technology for the purification of gold electrolyte by ether extraction are studied. The gold electrolyte containing Au 180 g/l,Ag 0. 5 g/l,HCl 210 g/l,Pt 9. 4o0g/l,Pd 10. 25 g/l and other base metal elements is diluted. By two-stage extraction and retro -extraction,the electrolyte is obtained containing Au 153 g/l,Ag 0. 0025 g/l,HCl 180 g/l,trace platinum elements and other base metal elements.The gold with its fineness greater than 99. 99% is produced in electrolytic refining under the condition...

The tbeory and technology for the purification of gold electrolyte by ether extraction are studied. The gold electrolyte containing Au 180 g/l,Ag 0. 5 g/l,HCl 210 g/l,Pt 9. 4o0g/l,Pd 10. 25 g/l and other base metal elements is diluted. By two-stage extraction and retro -extraction,the electrolyte is obtained containing Au 153 g/l,Ag 0. 0025 g/l,HCl 180 g/l,trace platinum elements and other base metal elements.The gold with its fineness greater than 99. 99% is produced in electrolytic refining under the condition of anede Au content>90%. The practice shows good reproduction.

试验研究了用乙醚萃取法净化金龟解废液的原理及工艺方法.将合Au180g/l,Ag0.5g/l,HCl210g/l,Pt9.40g/l,Pd10.25g/l及其它贱金属元素的金电解废液,稀释后的料液,经过两段萃取-反萃取,得到含Au153g/l,Ag0.0025g/l,HCl180g/l和微量铂族元素及其它贱金属元素的电解液.在阳极含Au>90%以上的条件下进行金电解精炼,可产出品位大于99.99%的电金.生产实践证明重视性,再现性良好.

Based on the theory of solvent extraction, cross current extraction and centrifugal micro extractor were used to simulate the counter current extraction in the study of furfural refining. It was found that 2-column extraction was better than 1-column, moreover, the split streams of the solvent for 2-column extraction were preferable to the 2-column in series.

采用以错流代替常用的串级试验(假逆流)的方法对糠醛精制两段萃取(即两段精制)进行了初步研究,在此基础上采用微型离心萃取器对两段糖醛精制进行了进一步的研究.研究结果表明,溶剂分流两段精制与一段精制相比能够在保证相同精制油质量的前提下,大幅度提高精制油收率及降低总溶剂比,而串联的两段精制较之一段精制具有在相同溶剂比时,进一步改善精制油的质量,但精制油收率有所下降.采用错流和微型离心萃取器的方法用于二段精制的研究所得结论是一致的,理论及试验结果都表明两段精制要优于一段精制.

Two stage extraction technology has been adopted in the furfural extraction unit at Shanghai Refinery of Gaoqiao Petrocheical Company to replace the original single step extraction. The application result showed that the innovation had the advantages of increasing the separation efficiency, raising the extraction theoretical trays from less than 4 to 5 and improving the refined oil yield as well as quality at same operating conditions. Thus, the economic effect was obviously increased.

针对上海炼油厂润滑油糠醛精制装置塔板效率不高,精制深度和产品质量难以进一步提高的情况,将原单塔流程,改为双塔串联、溶剂分流的两段萃取新工艺。应用结果表明,新工艺可以明显提高萃取塔分离效率,装置总的萃取效率由原来的不到4个理论级提高到5个理论级,在相同操作条件下,进一步改善了精制油质量,精制油收率提高,经济效益明显。

 
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