Novel Purification Technology of Carnallite and Potassium Chloride Product by Preprocessing-reverse Flotation in Reverse Flotation-cold Crystallization Production of KCI
The purification process of water-mining carnallite and rough potassium chloride concentrate from Qinghai Salt Lake Industry Group Co. Ltd. are investigated by the preprocessing-reverse flotation technology respectively.The results show that the impurities such as calcium sulfate and sodium chloride can be effectively removed from water-mining carnallite ore and rough potassium chloride concentrate by the new technology, the low-sodium carnallite is obtained and the final potassium chloride product greatly upgraded. The content and the recovery of KCI in the low-sodium carnallite are 25.78% and 97.50%, meanwhile the content of NaCI, CaSO4 in the low-sodium carnallite are 0.56% and 0.24%,and the removal of sodium chloride and calcium sulfate in the low-sodium carnallite are 97.48%,85.10% respectively. The KCI content and recovery of high quality potassium chloride product are 98.25%, 96.70%, and CaSO4 content is 0.40% with 83.24% calcium sulfate removed in the high quality potassium chloride product.
Crnallite Ptassium chloride Peprocessing Rverse-flotation Purification Gypsum
F. L. Wang X. Tan S. Y. Chen K. W. Zeng
Northeastern University, Shenyang, China The State Key Laboratory of Mineral Precessing, Beijing, Ch University of Science and Technology Beijing, Beijing, China The State Key Laboratory of Mineral Pro The State Key Laboratory of Mineral Processing, Beijing, China Beijing General Research Institute of
国际会议
XXIV International Mineral Processing Congress(第24届国际矿物加工大会)
北京
英文
1341-1351
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）