(1. 昆明理工大學(xué) 國土資源工程學(xué)院，昆明 650093；
2. 昆明理工大學(xué) 省部共建復(fù)雜有色金屬資源清潔利用國家重點(diǎn)實(shí)驗(yàn)室，昆明 650093；
3. 南方科技大學(xué) 化學(xué)系，深圳 518055；
4. 中南大學(xué) 資源加工與生物工程學(xué)院，長沙 410083)
摘 要: 錫是我國具有國際話語權(quán)的戰(zhàn)略性金屬資源。目前，隨著優(yōu)質(zhì)錫資源的枯竭，難選錫資源的高效回收仍是選礦領(lǐng)域的一大技術(shù)難題之一。本文綜述了錫石選別中的影響因素、選礦設(shè)備、選別工藝和用藥機(jī)理的研究進(jìn)展。基于錫石自身的物理化學(xué)特性及當(dāng)前錫石回收的難點(diǎn)，總結(jié)歸納了礦物粒度不均、伴生組分復(fù)雜、金屬離子影響、高泥干擾等選礦過程中的主要因素對錫石回收的影響機(jī)制。據(jù)此，分析了現(xiàn)有的選錫設(shè)備、選別工藝、浮選藥劑對復(fù)雜錫礦資源回收的技術(shù)局限。提出了聯(lián)合工藝及組合藥劑是實(shí)現(xiàn)錫礦資源高效回收利用的重要手段，協(xié)同互補(bǔ)理論的精細(xì)化研究也是未來開發(fā)新設(shè)備、新工藝和新藥劑的核心思想。
關(guān)鍵字: 錫石；影響因素；聯(lián)合工藝；組合藥劑；協(xié)同互補(bǔ)
（1. Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China;
2. State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China;
3. Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China;
4. School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China）
Abstract:Tin is a strategic metal resource, and China has an important international influence in the world. At present, due to the exhaustion of high-quality tin resources, the efficient recovery of low-grade refractor tin resources is still one of the technical problems in the field of mineral processing. The influencing factors, mineral processing equipment, beneficiation processes and medication mechanism in cassiterite beneficiation were reviewed in this work. Based on the physical and chemical properties of cassiterite itself and the current difficulties in cassiterite recovery, the main factors in the beneficiation process were summarized, such as uneven mineral particle size, complex associated components, metal ion influence, and high slime interference, etc., and their influence mechanism on the recovery of cassiterite. Accordingly, the technical limitations of existing tin dressing equipment, separation processes and flotation reagents for recovering complex tin ore resources were analyzed. It is proposed that combined processes and combined reagents are important means to realize effective recovery and utilization of tin ore resources. The refined research on synergy and complementarity theory is also the core idea for the future development of new equipment, new processes and new reagents.
Key words: cassiterite; influencing factors; combined process; combined reagent; synergy and complementarity
