
[树脂] 阳离子交换树脂
The intrinsic kinetics of the hydration reaction of cyclopentene was investigated in the presence of a strong acidic cation exchange resin catalyst.
以强酸性阳离子交换树脂为催化剂,对*********水合制*********反应的本征动力学进行了研究。
Ion exchange equilibrium of neutral amino acids on 732 strong acid cation exchange resin in non buffer systems were stu***d and an equilibrium model was proposed.
研究了非缓冲体系中性氨基酸在732型强酸性阳离子交换树脂上的离子交换平衡,并提出了平衡模型。
This paper introduces methanol refining method and pilot-scale production result by using 732—cation exchange resin and, summarizes activation and regeneration of the resin.
详细介绍用732型阳离子交换树脂精制甲醇的方法及生产性试验的效果,并简述了树脂的活化、再生方法。
Fatty acid methyl esters were prepared by esterification in a fixed bed reactor from methanol and fatty acids in palm oil deodorizer distillate(PODD) using a cation exchange resin as catalyst.
以强酸性阳离子交换树脂为催化剂,经过自制的固定床反应器,使棕榈油脱臭馏出物(PODD)中的脂肪酸与甲醇起酯化反应,合成脂肪酸甲酯。
Intrinsic kinetics of isobutene(IB) oligomerization was investigated over strong acid cation exchange resin as catalyst in presence of tert-butyl alcohol(TBA).
在强酸性阳离子交换树脂(催化剂)和*********体系中,对*********(IB)的齐聚动力学进行了研究。
Acetylsalicylic acid was synthesized from salicylic acid and acetic anhydride catalyzed by strong-acid cation exchange resin.
以水杨酸和*********为原料、强酸阳离子交换树脂为催化剂合成阿司匹林。
The sodium is removed with cation exchange resin .
钠用阳离子交换树脂来分离。
Objective To select the optimum purifying process of total alkaloids in Sophora flavescens by different eluents on cation exchange resin.
目的考察阳离子交换树脂法中不同洗脱剂对苦参总碱的纯化效果,优选最佳纯化工艺。
Using conditional test, the isobutyraldehyde glycol acetal was synthesized from isobutyraldehyde and ethylene glycol by direct esterification using strong acidic cation exchange resin as catalyst.
运用条件实验法,以*********、乙二醇为原料,强酸性阳离子交换树脂为催化剂,合成了*********乙二醇缩醛产品。
A new process has been developed to synthesize melomic acid from ***thyl malonate through hydrolysis reaction and catalyzing by strong acid type cation exchange resin.
该工艺以丙二酸二乙酯为原料,经强酸性阳离子交换树脂催化,通过水解反应制备丙二酸。
The separation and enrichment of samples by the homemade 732 cation exchange resin, and determination of Y and 14 REE of samples by DCP-AES are reported.
报道了用国产732型阳离子交换树脂分离富集、DCP-AES测定地质样品中Y及14种稀土元素的方法。
The authors reported the synthesis of C102 macroporous cation exchange resin from ST-DVB copolymer via chlorination and sulfonation, with NB-1 weak polar solvent as pore formation agent.
以NB-1 型弱极性溶剂为致孔剂合成的ST-DVB共聚体为骨架,经氯化、磺化制得C102大孔阳离子交换树脂。
The technological conditions of nonylphenol production from phenol and nonene using acidic cation exchange resin as catalyst were stu***d.
研究了以苯酚、壬烯为原料,酸性阳离子交换树脂为催化剂,进行烷基化反应生产*********的工艺条件。
The one-step hydration of turpentine oil catalyzed by macroporous cation exchange resin to synthesize high purity α-terpineol was stu***d.
研究了以大孔阳离子交换树脂作为催化剂的松节油一步法水合反应。
By giving examples, including the determination of acetic acid content in aqua ammonia, the use is described of the cation exchange resin in analysis in nitrogenous fertilizer plants.
通过氨水中乙酸含量的测定等实例,介绍了阳离子交换树脂在氮肥厂分析中的应用。
The structural groups of carbonized products of phenolic aldehyde resin and polystyrene cation exchange resin treated at different temperatures are tested and analyzed with IR method.
用红外光谱法对不同温度下处理的酚醛和聚*********阳离子交换树脂碳化产物的结构基团进行了测试分析。
Free amino acids s content and composition in Litchi fruit stones extraction and eluate by 732 cation exchange resin were determined by ICS-2500 Ion chromatograph.
为测定荔枝核中的游离氨基酸,采用ICS-2500离子色谱分析仪,分别测定了荔枝核提取液与732阳离子交换树脂洗脱液中的氨基酸的组成和含量。
The non-isothermal thermal decomposition kinetics of powdered sodium polystyrene sulfonate cation exchange resin was stu***d by TG method.
用TG法研究了粉状聚*********磺酸钠阳离子交换树脂的热分解反应非等温动力学,测定了该反应的动力学基础数据。
Conclusion The methods of extraction of alkaloids with alcohol and separation with strong acid cation exchange resin are economy, convenient and highly efficient.
结论乙醇提取、强酸性阳离子树脂提取、分离总生物碱是一种经济简便、效率较高的方法。
The catalytic hydroxyethylation of liquid ammonia by cation exchange resin was stu***d and the reaction mechanism was discussed. According to the experimental data, the kinetic equation was deduced.
对以阳离子交换树脂为催化剂的液氨*********反应进行了研究,叙述了该催化反应的机理,在对该反应动力学的实验基础上,得到了反应动力学方程。
Then-butyl hydroxyethanoate was synthesized by cation exchange resin as catalyst.
以强酸性阳离子交换树脂为催化剂,合成羟基***************。
Comparing the results, cation exchange resin was proved to be a good separating method for the green substance.
用阳离子交换树脂可以将该绿色物质成功分离出来。
Synthesis of dimethyl succinate from succinic acid and methanol on cation exchange resin NKC-9 was stu***d under adsorption dehydration with 3A zeolite adsorbent.
以阳离子交换树脂NKC-9固体酸为催化剂、丁二酸和甲醇为原料,采用分子筛吸附脱水技术合成丁二酸二甲酯。
Stu***s on adsorption properties for L-tryptophan with 732 cation exchange resin was carried out though on-line method.
在线跟踪观察732型阳离子树脂吸附L色氨酸的行为。
Calcium ions in the solution can be recovered by cation exchange resin. Then the solution, which is rich in glyphosate, can be utilized as resource.
试验中产生的沉渣加入盐酸可完全溶解,用阳离子交换树脂可回收溶液中的钙离子,处理后溶液富含草甘膦,可进一步资源化利用。
Objective: To select the optimum purifying process of total alkaloids from Sophora flavescens by means of cation exchange resin.
目的: 考察阳离子交换树脂不同洗脱剂纯化苦参总生物碱的效果,优选最佳纯化工艺条件。
The disk type module is the core of the water softening plant and is characterized in that the water softening chamber is filled with single strong acid cation exchange resin.
圆盘式膜堆是该软水装置的核心部分,其特征是软水室中填充单 一的强酸性阳离子交换树脂。
We use the Synthesis of carbon from the mixed four of the isobutylene and methanol in the strong acid styrene cation exchange resin catalyst, the reaction on the final synthesis of MTBE.
我采用的合成工艺是由混合碳四中的*********和甲醇在强酸性*********系阳离子交换树脂催化剂上进行反应最终合成MTBE。
|zeo-karb;[树脂]阳离子交换树脂
阳离子交换树脂(Cation Exchange Resin)是一种具有离子交换功能的高分子材料,广泛应用于水处理、化工生产及实验室分离纯化等领域。其核心功能是通过化学作用选择性吸附溶液中的阳离子,并释放等量其他阳离子,实现离子置换。
该树脂由交联聚合物基质(如聚苯乙烯-二乙烯苯共聚物)构成,表面固定带有负电荷的功能基团,如磺酸基(-SO₃H)或羧酸基(-COOH)。当接触含阳离子(如Ca²⁺、Na⁺)的溶液时,树脂通过以下反应完成交换: $$ R-SO_3^-H^+ + Na^+ rightarrow R-SO_3^-Na^+ + H^+ $$ 其中R代表树脂骨架,H⁺为可交换离子。
权威研究显示,磺酸型强酸性阳离子交换树脂对二价离子的选择性顺序为:Ba²⁺ > Pb²⁺ > Sr²⁺ > Ca²⁺ > Ni²⁺ > Cd²⁺ > Cu²⁺ > Co²⁺ > Zn²⁺ > Mg²⁺(《离子交换与吸附》期刊数据)。
Cation Exchange Resin(阳离子交换树脂) 是一种高分子材料,主要用于通过离子交换反应吸附溶液中的阳离子(带正电荷的离子),并释放自身携带的对应离子。以下是详细解释:
阳离子交换树脂表面带有负电荷基团,通过静电作用吸附溶液中的阳离子。例如:
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