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- A new extracting agent of piperidine derivant was synthesized. 合成了一种新萃取剂哌啶多氮衍生物。
- The recovery of the extraction agent can reach 85%. 萃取剂回收利用率可达85%25。
- This pape studies a new kind of teChnology of exracting thea saponin, which combines the prendums of organic compounds with water as extracting agent. 提出了综合水浸法和有机溶剂法优点的茶皂素提取新工艺。
- A process for the preparation of anhydrous acetaldoxime from an aqueous solution by gaseous extration with methylene chloride as extracting agent was studied. 研究了以二氯甲烷为萃取剂,利用气相萃取由乙醛肟水溶液制备无水乙醛肟的工艺过程,所得乙醛肟贮存稳定性好,含量在99%25以上,收率达93
- The results showed that the main compositions of the recovered extracting agent had no significant difference from the crude phenol and the extracting agent could be reused. 采用盐析萃取工艺对焦化精苯废酸进行治理回收利用,以粗酚作萃取剂,向萃取相中掺入3%25-5%25的阻垢剂,成功地解决了萃取剂蒸馏再生时起泡、结渣的问题。
- Spectrophotometric determination of cobalt in bright nickel plating bath was advanced with ammonium thiocyanate as complexing agent and butyl acetate as extracting agent. 以硫氢酸铵络合钴离子,随后用乙酸丁酯进行萃取,利用分光光度法测量光亮镀镍溶液中的钴离子。
- Solvent impregnating resins (SIR) have been prepared by impregnating macroporous styrene-divinylbenzene copolymer adsorption resins (SDAR) in the solution of extracting agent N235. 用萃取剂N_(235)(多种叔胺混合物)浸渍大孔苯乙烯-二乙烯基苯吸附树脂(SDAR)制备了溶剂浸渍树脂(SIR)。
- And ultrafine copperoxide powder is finally gained. During the experiment process, HDEHP is used as extracting agent and CCU is used as organic solvent to extract Cu2+ from CuSC>4 solution. 实验采用P_(204)为萃取剂，CCl_4为稀释剂的有机溶液萃取CuSO_4溶液中的铜离子，充分振荡达到萃取平衡。
- The preparation of anhydrous acetaldoxime from an aqueous solution by gaseous extraction using methylene chloride as extracting agent was studied. 研究以二氯甲烷为萃取剂，利用汽相萃取由乙醛肟水溶液制备无水乙醛肟的工艺过程，所得乙醛肟贮存稳定性好，含量在99%25以上，收率达93%25。
- Compared with extraction using water as extracting agent, the method of air flow aided volatilization-condensation process has the advantage of not forming a new azeotrope. 与水萃取法相比，空气辅助挥发冷凝法分离环己烷-乙醇具有不形成新的共沸物的优点。
- A temperature sensitive gel as extraction agent which is a copolymer of N-isopropy-lacrylamide (NIPA) with sodium methacrylate has been synthesized. 本工作合成了一种温敏萃取凝胶,即N-异丙基丙烯酰胺与甲基丙烯酸钠的共聚物凝胶。
- Cupperron and 8 - hydroxyquinoline were used as the extraction agent for the purification of calcium lactate from ferric salt. 选定铁盐作为除杂对象,用铜铁试剂和8-羟基喹啉2种萃取剂分别对乳酸钙进行精制。
- Abstract： A temperature sensitive gel as extraction agent which is a copolymer of N-isopropy-lacrylamide (NIPA) with sodium methacrylate has been synthesized. 摘要： 本工作合成了一种温敏萃取凝胶,即N-异丙基丙烯酰胺与甲基丙烯酸钠的共聚物凝胶。
- A kind of optimal extraction agent is determined for extraction distillation of propane-propene process,based on the simulation results by the ASPEN PLUS software. 借助ASPEN PLUS软件,对丙烷?丙烯体系萃取精馏过程所用的溶剂进行了筛选,得到一种最佳的萃取剂。
- The extractive agent will effectively increase the relative voatility between active amyl alcohol and isoamyl alcohol, and is easy to be recovered bo isoamyl alchohol. 该萃取剂能有效增加原溶液中组份的相对挥发度，且回收容易。
- With the interaction of an organic extraction agent, the 2 products of technical potassium dihydrophosphate and feed-grade dicalcium phosphate, can be obtained from WPA. 研究开发了一种湿法磷酸在有机萃取剂的作用下,制取工业级磷酸二氢钾、饲料级磷酸氢钙的方法,介绍试验原理;
- I booked my holiday through my local travel agent. 我是由本地的旅游代理人预先安排的度假事宜。
- Using acetone as extraction agent,Hypocrellin A is seperated and purified from Shiraia bambusicola by acid-alkaline precipatation combined with Soxhlet extraction. 以丙酮作为提取剂,采用索氏提取法与酸碱沉淀法相结合,从竹黄中分离、纯化竹红菌甲素。
- The tour is arranged by our local travel agent. 这个旅游团是由我们的本地旅游代理商组织安排的。
- For further information, contact your local agent. 要进一步了解情况，请与本地代理商联系。
