CAJ | 학술논문

通过单矿物浮选试验、动电位和红外光谱分析，研究了ZL捕收剂作用下白钨矿、萤石和方解石的浮选行为及ZL捕收剂与含钙矿物的作用机理，并在此基础上对湖南某钨矿进行了实际矿石浮选试验。实验结果表明：ZL捕收剂对方解石捕收能力较强，白钨矿次之，萤石较弱；当硅酸钠用量较高时，ZL捕收剂可在pH＝11．0的碱性条件下实现白钨矿与萤石、方解石的有效分离，而且采用该药剂制度，原矿含WO30．36％的实际矿石经常温粗选可获得品位7．45％、回收率92．35％的钨粗精矿。动电位和红外光谱分析表明，ZL捕收剂化学吸附于白钨矿和方解石表面，而物理吸附于萤石表面；硅酸钠的添加几乎不影响ZL捕收剂与白钨矿的作用，却可以强烈抑制ZL对萤石和方解石的捕收作用。
통과단광물부선시험、동전위화홍외광보분석，연구료ZL포수제작용하백오광、형석화방해석적부선행위급ZL포수제여함개광물적작용궤리，병재차기출상대호남모오광진행료실제광석부선시험。실험결과표명：ZL포수제대방해석포수능력교강，백오광차지，형석교약；당규산납용량교고시，ZL포수제가재pH＝11．0적감성조건하실현백오광여형석、방해석적유효분리，이차채용해약제제도，원광함WO30．36％적실제광석경상온조선가획득품위7．45％、회수솔92．35％적오조정광。동전위화홍외광보분석표명，ZL포수제화학흡부우백오광화방해석표면，이물리흡부우형석표면；규산납적첨가궤호불영향ZL포수제여백오광적작용，각가이강렬억제ZL대형석화방해석적포수작용。
The flotation behavior and mechanism of ZL in collecting scheelite, fluorite and calcite were investigated by micro?flotation tests, ζ potential analysis and infrared spectrum analysis. After that, tests were conducted on actual scheelite ore from Hunan Province with a WO3 content of 0.36%. The results showed that ZL has a stronger collecting capacity on calcite than scheelite, and a weaker on fluorite. With a large amount of sodium silicate, scheelite can be effectively separated from gangue minerals using ZL as collector under an alkaline condition of pH 11. 0. Moreover, a rough tungsten concentrate grading 7.45%at a recovery of 92.35%was obtained from test with that actual scheelite ore at room temperature. From the ζ potential and FTIR analysis, it is found that ZL can be chemisorbed onto the surfaces of scheelite and calcite, yet, physisorbed onto fluorite. The addition of sodium silicate has little influence on the interaction between ZL and scheelite, but strongly suppressed the collection of ZL on fluorite and calcite.