产品详细

　　在自然界中金属钴和金属镍经常是伴生的，因此钴镍分离是经常遇到的冶金问题。目前常用的钴镍分离方法为溶剂萃取法，通过P204、P507 等萃取剂把大量钴从钴镍混合液中萃取出来。萃馀液中则还含有较大量的镍和微量的钴。而对萃馀液中的残留钴镍进行吸附富集时发现，用普通的螯合树脂，如亚氨基二乙酸型螯合树脂或氨基膦酸型螯合树脂，吸附量非常低，达不到富集的目的。为此，苏青集团专门研发了一种新型螯合树脂，不但对这类萃馀液中的钴镍具有非常高的吸附容量(30g/L以上)，容易解析，解吸液中钴镍浓度很容易达到30g/L以上，而且对钙镁吸附量很低，经处理过的水中镍含量可以达到0.5mg/L以下的工业要求。

　　Cobalt and Nickel are usually found together in nature. So, Co and Ni separation is a metallurgical problem often encountered. Now the widely used method is the solvent extraction. By using P204 and / or P507 etc,, Co is largely extracted from the solution of Co and Ni mixture. In the water phase, there still major Ni and some Co residue. It was found out that when the general chelating resins, such as the iminodiacetic acid type or the aminophosphonic acid type chelating resins, were used, the Ni & Co capacity was very low. Based on this requirement, Suqing Group developed and manufactured a new type chelating resin SQD-432. This new resin has a very high adsorption capacity for this kind of Ni & Co (more then 30/L). It is very easy to be eluted, and the concentration of Ni & Co in the eluate is very easy to reach 30g/L and over. This new chelating resin adsorbs very little amount of calcium and magnesium. And, after the adsorption, the Ni residue in the water can be less then the industrial requirement of 0.5mg/L.

　　树脂的物化性能指标(Physical and Chemical Properties)

　　企业标准(Enterprise Standard)

　　Q/320281NAN 65-2019

　　树脂再生方法(Regeneration Method)

　　SQD-432新型螯合树脂可以单柱使用，也可以两柱串联使用，两柱串联时树脂的工作交换容量会更高，一般建议两柱串联使用。当树脂吸附泄漏超标后，需要进行再生。 SQD-432螯合树脂的再生一般是用酸洗脱吸附的金属离子，酸洗脱剂可以选择硫酸或盐酸，根据希望得到的洗脱液金属离子浓度的高低，其浓度可以在3-15%之间变化。酸洗脱后，根据实际需要可以直接水洗至接近中性直接H-型使用，也可以再用氢氧化钠转为Na-型再水洗至接近中性使用。

　　SQD-432 chelating resin can be used in single column or two columns connected in series. The later will give the resin a higher capacity and a better removal efficiency (This mode is suggested). When exhausted, SQD-432 should be eluted first with acid. The acid used could be sulfuric acid or hydrochloric acid. According to different applications, the concentration of the acid used could be in the range of 3-15%. After the elution, according to different requirement, the resin can be washed with Di water close to neutral and be used again directly in H-form. Or, it can also be converted into N-form with NaOH and then washed with DI water close to neutral and then be used in Na-form.

　　包装(Packing)

　　25Kg、25L编织涂膜袋，或1立方大包。

　　25Kg, 25L woven coating bag, or 1 cubic bag.