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- 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。
- sulfonie acid ion exchange resin 磺酸型阳离子交换树脂
- 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。
- weak acid H ion exchange resin 弱酸性H离子交换树脂
- Keywords Propylene glycol monomethyl ether propionate;Toluene-p-sulfonic acid;Macroporous strong acid ion exchange resin;Reaction kinetics model; 丙二醇单甲醚丙酸酯;对甲苯磺酸;大孔强酸性离子交换树脂;反应动力学模型;
- Prevention the cooling water system from scaling by using weak acid ion exchanger 弱酸床处理循环冷却水系统防垢试验研究
- Keywords Strongly acidic ion exchange resin;Esterification;Methyl cinnamate; 磺酸型阳离子交换树脂;酯化;肉桂酸甲酯;
- strong acid ion exchange resin 强酸性离子交换树脂
- 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 catalyst system used in the synthesis of Maleic acid ester,such as inorganic acid,ion exchange resin and solid acid,was introduced. 本文介绍了国内外马来酸二甲酯合成中的催化剂体系,有无机酸、离子交换树脂、固体酸等。
- The synthesis of peroxyacetic acid by which A Type positive ion exchange resin and sulfuric acid are used ascatalyst is studied through experiment. 研究了以A型阳离子交换树脂和硫酸为混合催化剂合成过氧乙酸的工艺。
- Macroporous weak acid cation exchange resin 大孔弱酸性阳离子交换树脂
- Based on the principle of ion exchange,fibre spinning acid washing water is applied to replace salt and mirabilite,so as to regenerate sodium ion exchange resin. 根据离子交换原理,利用纺丝去酸水代替食盐、芒硝再生钠离子交换树脂,可以去除硬水中的钙离子和镁离子。
- Methods: Extracted by EtOH,purified by 732-positive ion exchange resin. 方法:全草粗粉用乙醇提取,强酸型732阳离子树脂交换纯化。
- These scale-control methods are ion exchange resin softening ,lime softening, membrance softening, acid feed, scale inhibiter feed, electrostatic water treatment and coating. 这些方法包括:离子交换软化法、石灰软化法、膜软化法、加酸法、阻垢剂法、静电水处理法和涂料法。采用这些方法后可以使清洗的有效期延长、清洗的频率降低。
- The influence of operation parameters on the behavior of adsorption and desorption of BSA with the weak acidic type cation exchange resin mixed PES-based fibrous adsorber in different structures was also investigated in this work. 考察了BSA溶液pH、BSA浓度、洗脱剂pH和离子强度、吸附剂预处理与后处理、吸附剂再生以及料液流动状态等因素对吸附剂吸附与脱附性能的影响。
- Superacid ion exchange resin, the molecular sieve, heteropoly acid, load type such as solid acid catalyst in the esterification catalyst paid more and more 答案补充 attention. 超强酸离子交换树脂、分子筛、杂多酸、负载型固体酸催化剂等作为酯化反应中的催化剂越来越受到人们的关注。
- acidic ion exchange resin 离子交换树脂
- strong acid ion exchange resins 强酸型离子交换树脂
- Objective: To evaluate the causes of contamination and regenerate methods of ion exchange resin. 目的探讨离子交换树脂被污染的原因、预防措施及再生方法。