CAJ | 학술논문

研究采用再磨-浮选工艺对南方某老尾库尾矿（含 WO30.19%）中的钨进行回收.以 NaOH 为调整剂、Na2 SiO3为抑制剂、氧化石蜡皂733为捕收剂，当-0.074 mm 占83.52%的磨矿细度下，钨粗选试验最佳条件为 NaOH 用量为2000 g/ t，Na2 SiO3用量为2000 g/ t，捕收剂733用量为100 g/ t.通过一次粗选、二次扫选和三次精选流程，获得钨粗精矿含 WO33.26%，回收率为70.48%.红外光谱测定结果表明，捕收剂733对白钨矿的捕收作用以表面化学吸附和键合为主.
연구채용재마-부선공예대남방모로미고미광（함 WO30.19%）중적오진행회수.이 NaOH 위조정제、Na2 SiO3위억제제、양화석사조733위포수제，당-0.074 mm 점83.52%적마광세도하，오조선시험최가조건위 NaOH 용량위2000 g/ t，Na2 SiO3용량위2000 g/ t，포수제733용량위100 g/ t.통과일차조선、이차소선화삼차정선류정，획득오조정광함 WO33.26%，회수솔위70.48%.홍외광보측정결과표명，포수제733대백오광적포수작용이표면화학흡부화건합위주.
The process of recovery of tungsten by regrinding-flotation from an old ore tailing contained 0. 19% WO3 in the south is investigated. The results show that satisfactory flotation indexes can be achieved by the process of one stage roughing,two-stage scavenging and three-stage cleaning,with sodium hydroxide as regulator,sodium sili-cate as the depressant and paraffin soap oxidated 733 as the collector. The experiment of tungsten roughing shows that the optimized dosage of NaOH is 2 000 g / t,dosage of sodium silicate is 2 000 g / t,dosage of collector 733 is 100 g / t when the optimum grinding fineness of - 0. 074 mm is 83. 52% . The tungsten concentrate grade and the recovery of WO3 reach 3. 26% and 70. 48% ,respectively. Analysis of IR spectra testified that chemisorption and bonding were the main reaction mechanism of 733 on scheelite.