产品详细

苏青最新研发的SQ- 06LiⅡ型提锂吸附剂,在第一代锂吸附剂基础上作了很大的改进,采用新型纳米材料,复合致孔剂以及特殊的造粒工艺,外观规整(球形.行业唯一- ).比表面积大、选择性高、各项性能显著提升,同等条件下吸附容量比同类产品高50-60% ,同时该产品洗脱方便、解析率高、溶损率低、使用耐久性好,产品性能实现了质的飞跃。

The SQ-06Li Ilithium extraction adsorbent developed by Suqing is a new polymer synthetic material product. On the basis of the first generation of lithium adsorbent has made great  improvements,using new nanomaterials, composite pore-forming agent and special granulation process, the appearance of regular (spherical, the industry only), large specific surface area, high selectivity, the performance is significantly improved, the adsorption capacity is 50- 60% higher than similar products under the same conditions, At the same time, the product has the advantages of convenient elution, high resolution rate, low dissolution loss rate and good durability, and the product performance has achieved a qualitative leap.

预处理(Pretreatment)
为确保将新的吸附剂中可能存在的微量低聚物和装填过程中带入的杂物清除干净，不影响产品的质量，新吸附剂正式使用前，应进行如下的预处理操作:
In order to ensure that the trace oligomers that may exist in the new adsorbent and the impurities brought in during the filling process are removed without affecting the quality of the product, the following pretreatment operations should be performed before the new adsorbent is officially used
(1) 反洗:吸附剂装填完毕后，首先用清水进行反洗(或在吸附剂专用处理罐内)，流速控制在7-10BV/h(床体积/小时)， 确保70%的反洗膨胀率，以去除杂质和微小的颗粒,直到反洗出水澄清止，耗时约0.5小时;
(1) Backwashing: After the adsorbent is flled, firstly perform backwashing with clean water (or in a special treatment tank for adsorbents), and the flow rate is controlled at 7-10BV/h (bed volume/hour) to ensure 70% backwashing Expansion rate to remove impurities and tiny particles until the backwash water is clarified, which takes about 0.5 hours; 
(2)浸泡:停止反洗，降低液位至吸附剂层最高处上方20cm处，浸泡约2小时，使吸附剂充分落床;
(2) Soaking: Stop backwashing, lower the liquid level to 20cm above the highest point of the adsorbent layer, and soak for about 2 hours to make the adsorbent fully fall into the bed;
(3)正洗:最后用去离子水以3-4BV/h冲洗床层，耗时约3-5小时。

(3) Washing: finally rinse the bed with deionized water at 3-4BV/h, which takes about 3-5 hours.

●单柱测试
吸附(Adsorption)
量取一定体积吸附剂V(mL)装入交换柱,取一定体积卤水V,(L ), 控制卤水(C。. mg/L)以0.5-3BV/h顺流经过吸附柱处理,收集流出液,监测吸附柱出口锂浓度,待吸附平衡后停止进料,计量吸附尾卤体积V, (L) ,并检测尾卤混合锂浓度C，( mg/L).
A certain volume of adsorbent V(mL) is loaded into the exchange column, a certain volume of brine V。(L) is taken, and the brine (Co, mg/L) is controlled to pass through the adsorption column in 0.5-3BV/h downstream to collect the effluent, monitor the lithium concentration at the outlet of the adsorption column, and stop feeding after the adsorption equilibrium. The adsorption volume of the tail halide is V, (L), and the concentration of the tail halide mixed lithium is detected C, (mg/L).

置换(Replacement)

降低液位至吸附剂层最高处齐平，用低钙镁锂卤水以2BV/h顺流置换残留卤水，耗时0.5小时收集置换出卤水计量体积V2(L)，并检测置换出卤水锂浓度Cz ( mg/L)。

Lower the liquid level to the highest level of the adsorbent layer, and replace the residual brine with low calcium magnesium lithium brine at 2BV/h downstream. It takes 0.5 hours to collect and replace the brine, measure the volume V2 (L), and detect the concentration of lithium in the brine C, (mg/L).
洗脱(Desorption)

用去离子水以2BV/h对吸附剂床进行顺流洗脱，耗时约5-10小时(建议每隔一小时取样监测离子浓度)，待洗脱液锂浓度低于设计要求，停止洗脱，计量洗脱液总体积V3 (L )，并检测洗脱液混合锂浓度C; ( mg/L)。
Co-current elution of the adsorbent bed with deionized water at 2BV/h. It takes about 5- 10 hours (sampling every hour to monitor the lithium concentration is recommended).When the lithium concentration of the eluent was lower than the design' requirements, the elution was stopped, the total volume of the eluent was measured at V3 (4), and the concentration of the eluent mixed lithium at C; (mg/L) was detected.