| 阳离子交换树脂注意事项 |
| 添加时间：2018/4/20 15:01:12 浏览次数： |
| 阳离子交换树脂注意事项 Precautions of cation exchange resin 1、离子交换树脂含有一定水份，不宜露天存放，储运过程中应保持湿润，以免风干脱水，使树脂破碎，如贮存过程中树脂脱水了，应先用浓食盐水（10%）浸泡，再逐渐稀释，不得直接放入水中，以免树脂急剧膨胀而破碎。 1, the ion exchange resin contains a certain amount of water, it should not be stored in the open air. In storage and transportation, it should be kept moist so as to prevent the dehydration of the air dry and make the resin broken. If the resin is dehydrated in the storage process, it should be soaked with concentrated salt water (10%) first, and then gradually diluted and not directly put into the water to avoid the sharp expansion and breakage of the resin. 2、 冬季储运使用中，应保持在5-40℃的温度环境中，避免过冷或过热，影响质量，若冬季没有保温设备时，可将树脂贮存在食盐水中，食盐水浓度可根据气温而定。 2, in winter storage and transportation, it should be kept in the temperature environment of 5-40 degrees C, avoiding overcooling or overheating and affecting the quality. If there is no thermal insulation equipment in winter, the resin can be stored in salt water, and the concentration of salt water can be determined according to the temperature. 3、 离子交换树脂的工业产品中，常含有少量低聚合物和未参加反应的单体，还含有铁、铅、铜等无机杂质，当树脂与水、酸、碱或其它溶液接触时，上述物质就会转入溶液中，影响出水质量，因此，新树脂在使用前必须进行预处理，一般先用水使树脂充分膨胀，然后，对其中的无机杂质（主要是铁的化合物）可用4-5%的稀盐酸除去，有机杂质可用2-4%稀氢氧化钠溶液除去，洗到近中性即可。如在医药制备中使用，须用乙醇浸泡处理。 3. In the industrial products of ion-exchange resin, a small amount of low polymer and non reactive monomers are often contained, and the inorganic impurities such as iron, lead and copper are also contained. When the resin is exposed to water, acid, alkali or other solutions, the above material will be transferred into the solution to affect the quality of the effluent. Therefore, the new resin must be pretreated before use. In general, the resin is fully expanded with water, and then the inorganic impurities (mainly iron compounds) can be removed by dilute hydrochloric acid of 4-5%, and the organic impurities can be removed by 2-4% dilute sodium hydroxide solution and washed to the near neutral. If used in pharmaceutical preparations, it must be soaked in ethanol. 4、 树脂在使用中，防止与金属（如铁、铜等）油污、有机分子微生物、强氧化剂等接触，免使离子交换能力降低，甚至失去功能，因此，须根据情况对树脂进行不定期的活化处理，活化方法可根据污染情况和条件而定，一般阳树脂在软化中易受Fe的污染可用盐酸浸泡，然后逐步稀释，阴树脂易受有机物污染，可用10%NaC1+2-5%NaOH混合溶液浸泡或淋洗，必要时可用1%双氧水溶液泡数分钟，其它，也可采用酸碱交替处理法，漂白处理法，酒精处理及各种灭菌法等等。 4. In use, the resin is used to prevent contact with metal (such as iron, copper, etc.), organic molecular microorganism, strong oxidizer, and so on, so as to reduce the ability of ion exchange and even lose its function. Therefore, the resin should be activated regularly according to the situation. The activation method can be determined according to the condition of pollution and general. The resin is easily soaked in Fe by hydrochloric acid, and then gradually diluted with hydrochloric acid. The anion resin is easily contaminated by organic matter. It can be soaked or washed with 10%NaC1+2-5%NaOH mixed solution. If necessary, 1% hydrogen peroxide solution can be used for several minutes. The other can also be treated with acid base alternate treatment, bleaching treatment, alcohol treatment and various sterilizing. Law and so on. |
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