The waste acid from the manufacture of cation exchange resin can be successfully recovered and reused by a new washing process with dilute acid instead of traditional washing process with water.
采用稀酸套洗工艺代替传统的加水稀释洗涤工艺，成功地解决了阳离子交换树脂生产中废酸的回收利用问题。
Type 732 cation exchange resin was added in nickel bath to separate nickel ions and other cations, boric acid and chloride ions were then separately titrated by sodium hydroxide and silver nitrate.
采用732型阳离子交换树脂分离镍及其它阳离子后，分别用氢氧化钠和硝酸银滴定硼酸和氯离子。
Ion exchange equilibrium of neutral amino acids on 732 strong acid cation exchange resin in non buffer systems were studied 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。
When the fixed bed continuous process is used, the appropriate catalyst is strong acid cation exchange resin.
当采用固定床连续甲酯化反应时，适宜的催化剂为强酸性阳离子交换树脂。
Resin direct hydration method is the procedure that butylenes which is in super-critical status reacts with water to produce secondary butyl alcohol with the catalyst of acid cation exchange resin.
树脂直接水合法是以固体酸性阳离子交换树脂作催化剂，以丁烯在超临界状态下与水反应生成仲丁醇。
A thorough inventory of base cation emissions in China is needed to develop programs for acid deposition control.
盐基阳离子排放清单的建立，对于中国酸沉降控制有重要的意义。
The variation of this pH range was dependent on the strength of the base, the volume of the conjugated acid cation, and whether this cation can increase the surface charge of the micelles or not, etc.
这一范围的大小（宽窄）受制于碱的强弱、共轭酸阳离子的体积以及共轭酸阳离子是否能增加胶束表面的电荷等几个方面。
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。
Ethanol and tert-amyl alcohol were employed to synthesize tert-amyl ethyl ether in the liquid phase at atmospheric pressure. The strong acid cation exchange resin, NKC-29, was used as catalyst.
用国产NKC-29型强酸性阳离子交换树脂为催化剂，在常压液相条件下用乙醇和叔戊醇为原料合成了乙基叔戊基醚。
The derived polyacrylic acid (PAA) -pva grafted fibres possess cation exchange characteristics.
制得的PAA -接枝维纶具阳离子交换特性。
Both a strong acid cation bed and a strong base anion bed are required to remove all of the ions in the water.
此工艺需同时使用一强酸性阳离子交换柱和一强碱性阴离子交换柱以除去水中所有离子。
Vegetation uptake of nitrogen and base cation, as well as acid deposition, is an important source of soil acidity.
植被对氮和盐基阳离子的吸收是除酸沉降外另一个重要的土壤酸度来源。
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。
Retention behavior of alkali metals, ammonium ion and alkyl amines on a sulfonic cation-exchange resin column with organic acid and inorganic acid as eluent was studied.
系统研究了碱金属、铵离子和烷基胺在磺酸型阳离子交换树脂柱上以有机酸和无机酸为淋洗液的保留行为。
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异丁烯和甲醇在强酸性苯乙烯系阳离子交换树脂催化剂上进行反应最终合成MTBE。
If one of claims 1 to 3 as described in Class strong acid cation exchanger, strongly acidic cation exchanger of these seeds by feeding a variety of prepared polymer beads obtained.
如权利要求1到3之一所述的强酸性阳离子交换剂类，这些强酸性阳离子交换剂通过晶种送料法制备的多种珠状聚合物而获得。
The preparation process of epoxy soybean oil under the catalysis of sulfuric acid and 732 type cation exchange resin is introduced, and the optimum technological conditions have been obtained.
介绍了在硫酸、732阳离子交换树脂的催化作用下，制备环氧大豆油的工艺，得出了最佳工艺条件。
This papar is concerned with the technique of regaining L-GA from exhausted liquid extracted L-GAwith strong acid cation-exchange resin and eluting, regenerating resin with ammonia water.
用强酸性阳离子交换树脂吸附提取母液中的L-谷氨酸（简称L-GA），然后用氨水洗脱和再生，回收L-GA。
This reproduction method of the original cation exchanger often results in non qualified reproduction of the exchanger and high acid consumption.
这种原阳床再生方法，经常出现阳床再生不合格现象，酸耗较高。
Hydrolysis of methyl formate to form formic acid was studied experimentally by using strong-acid cation-exchange resin as catalyst and packing in a catalytic distillation column.
在催化精馏塔内以压制的强酸性阳离子交换树脂为催化剂填料对甲酸甲酯水解制甲酸进行了实验研究。
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。
This paper investigates the catalysis of D-72 strong acid cation exchange resin on the synthesis of acetals, and systematically discusses the influence of reaction factors on the catalysis reaction.
研究了强酸性阳离子交换树脂对缩醛合成反应的催化作用，系统地探讨了各反应因素对反应的影响，研究发现，D- 72强酸性阳离子交换树脂具有较高的催化活性，并能重复使用。
The total exchange capability is the main character of resin. Grasping the measuring method of total exchange capability of acid-cation resin.
总交换容量是树脂的主要特性之一。掌握强酸性阳树脂总交换容量的测定方法。
The etherification of isoamylenes and methanol to form tert all methyl ether (TAME) by benz-sulfonic acid cation exchange resin as catalyst, was studied.
研究了苯磺酸型树脂催化的异戊烯和甲醇的醚化，考查了温度、醇烯比和空速对反应的影响。
The desalting regeneration system is revamped by using the magnesium tail water from the intermittent nitric acid production unit to replace hydrochloric acid as the cation bed regenerant.
使用间硝生产中产生的镁尾水替代盐酸作为阳床再生剂对除盐再生系统进行改造。
Methods Alcohol and strong acid cation exchange resin were used in the extraction and separation.
方法醇类溶剂提取法、离子交换树脂分离法。
Proposed is a process for purification of yellow humic acid by heterophase cation-exchange membrane. After electrophoresis, its purity was up to 95% and recovery, 88.47%.
研究了一种新的黄腐酸提纯工艺方法，采用异相离子交换膜进行黄腐酸的电渗析提纯，黄腐酸经电渗析后的纯度可达95% ，收率为88.47% ；
Taking succinic acid, alcohol as material, cation exchange resin as catalyst the diethyl succinate is synthesized.
论述了以丁二酸、无水乙醇为原料，离子交换树脂，催化合成丁二酸二乙酯的新工艺。
Taking succinic acid, alcohol as material, cation exchange resin as catalyst the diethyl succinate is synthesized.
论述了以丁二酸、无水乙醇为原料，离子交换树脂，催化合成丁二酸二乙酯的新工艺。
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