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- Acidic Exchange ion Resins 阳离子交换树脂
- Cation exchange ion resin 阳离子交换树脂
- The extraction rate was higher with the ion resin exchange method than the ethanol extraction method. 中提取生物碱,离子交换法较乙醇提取法的提取率为高。
- About 95% of the exchange capacity was restored with acid exchange,with activity of the regenerated catalyst close to that of fresh catalyst. 失活催化剂经酸交换,约95%25的酸交换容量能够得到恢复,其对醚化反应的活性接近新鲜催化剂的水平。
- The purpose of this paper is to develop a new electroactive polymer with different kind partial sulfonated polystyrene(SPS) positive ion resin which using N-methyl-pyrrolidone (NMP) as the solvent, with initiated by benzoyl peroxide (BPO). 本论文旨在通过以N-甲基吡咯烷酮(NMP)为溶剂,过氧化苯甲酰(BPO)为引发剂,制备不同类型的磺化聚苯乙烯系阳离子树脂,获得一类可作为电驱动器件的高分子材料。
- There are exchangeable ions between the layers. 它们层间存在可交换的离子。
- Sodium chloride and hydrochloric acid are often used to regenerate spent ion exchange resins used in water purification. 氯化钠和盐酸常用来再生水净化中用的废的离子交换树脂。
- A ion exchange resins was studies for the esterification of fumaric acid with methanol in this paper. 研究了以富马酸和甲醇为原料,强酸型离子交换树脂为催化剂合成富马酸二甲脂。
- As shown in the result, the acid exchangeable, reducible, oxidable and residual forms of thallium all existed in the up, middle and down bottom stratum of the sediment core. 结果表明,铊以酸可交换态、可还原态、可氧化态和残余态在上、中、下层沉积物中均有分布;
- By using cation ion exchange resins as catalyst as cinnamic acid reacting with methanol, ethanol,n-propanol and n-butanol, some cinnamates were prepared. 以大孔阳树脂为催化剂,将肉桂酸与甲醇、乙醇、正丙醇、正丁醇反应,制备了相应的肉桂酸酯。
- Keywords fruits of Ziziphus;cAMP;ion resins;extraction;purification;RP-HPLC; 红枣;环磷酸腺苷;离子交换树脂;提取;纯化;反向高效液相色谱法;
- With hydrogen sulfide and tetrapropylene as raw materials, TDM was synthetized by the one step process in the presence of acidic ion exchange resin. 摘要 以硫化氢和十二烯为反应原料,以酸性离子交换树脂为催化剂一步合成叔十二碳硫醇。
- Ion-exchange, as the name partially suggests, is the process of exchanging ions from a liquid with ions from an exchanger. 离子交换指的是溶液中的离子与交换剂上的离子相互交换。多思索,多积累。这是学好英语之道!
- In this paper, the methyl cinnamate was synthesized from cinnamate acid and methanol by using strongly acidic ion exchange resin as catalyst. 以磺酸型阳离子交换树脂为催化剂,由肉桂酸和甲醇合成了肉桂酸甲酯。
- Lignite can be dissolved in dyeing wastewater under basic condition,and it adsorbs dyes and exchanges ions quickly in the wastewater. 褐煤在碱性条件下分散于印染废水中,能快速吸附和离子交换。
- He gave me a taste of his acid wit. 他让我尝到了他敏锐尖刻之机智的滋味。
- Acid irritates the stomach lining. 酸能刺激胃黏膜。
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- Methods of separation of phytic acid by ion exchange resin from rice bran are described. 本文介绍了用离子交换树脂从米糠中提取植酸的方法和条件。
- The soil becomes more and more acidic as pollution mounts up. 随着污染的加剧,土壤的酸化越来越严重。