云南都龙微细粒级锡石浮选试验研究  

Experimental Study on Flotation of Fine Cassiterite in Dulong Yunnan

作　　者：陈瑜[1] 文书明[1] 王伊杰[1] 邓久帅[1] 王小候 刘亚伟 Chen Yu;Wen Shuming;Wang Yijie;Deng Jiushuai;Wang Xiaohou;Liu Yawei(l.State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization,Faculty of Land Resource Engineering,Kunming University of Science and Technology,Kunming,Yunnan,Chin;Datun branch Co.,Ltd.,Yunnan Tin Group,Gejiu,Yunnan,China;Yunnan Hualian Zinc and Indium stock Co.,Ltd.,Wenshan,Yunnan,China)

机构地区：[1]省部共建复杂有色金属国家重点实验室昆明理工大学国土资源工程学院,云南昆明650093 [2]云南锡业集团有限责任公司大屯选矿分公司,云南个旧661000 [3]云南华联锌铟股份有限公司,云南文山663700

出　　处：《矿产综合利用》2018年第4期32-36,共5页Multipurpose Utilization of Mineral Resources

基　　金：国家科技支撑计划(2015BAB02B04)资助

摘　　要：本云南都龙矿区矿泥中锡品位为0.49%,具有很好的回收价值,其主要锡矿物为锡石,但锡石嵌布粒度微细,回收效果不理想。为提高锡的回收率,以锡矿泥为原矿,进行了微细粒级锡石试验研究。首先,对原矿进行了预先脱硫浮选处理,由于原矿中硫含量较高,硫化矿的存在会影响锡的选别,较为彻底地脱硫会改善锡的浮选指标,脱硫后的矿样中锡品位为0.59%,硫品位降低到了0.1%以下;对脱硫后的矿样进行浮选试验研究,试验结果表明,JSY-19对锡石浮选捕收性能较强,苯乙烯膦酸对锡石浮选选择性能较好,在JSY-19和苯乙烯膦酸以2:1质量比混合作为捕收剂,P86为辅助捕收剂,2#油为起泡剂的条件下,经过一粗三精两扫的闭路流程试验,可得到锡品位15.00%、锡石浮选作业回收率91.11%的锡精矿。试验通过药剂的组合使用,节省了药剂用量,降低了浮选成本,且得到了较好的微细粒锡石回收技术指标。The tin in slime of Dulong mining area of Yunnan has value of resource reclamation, and the tin grade of the slime is 0.49%. Main tin mineral is cassiterite. The cassiterite can not be enriched well because of its fine dissemination size. To improve the recovery of cassiterite, take the slime as the raw ore, mineral processing tests of fine cassiterite were carried out. First, we use flotation to pre-desulphuration because of the high content of sulfur in the raw ore. The flotation of cassiterite could be affected with the exsistance of sulphide ore, and the flotation index could be improved by desulphuration. In the sample after desulphuration, the tin grade is 0.59%, and the sulfur grade decreased less than 0.1%. Experimental study on flotation to the sample were made. The experimental results showed that, JSY-19 has a good collecting property for cassiterite, and styryl phosphonic acid has a good selectivity for cassiterite. With JSY-19 and styryl phosphonic acid mixed with mass ratio of 2：1 as collector, P86 as auxiliary collector, pine oil as frother, by the closed circuit test process ＂one roughing, three scavenging and two cleaning＂, tin concentration with tin grade of 15.00%, recovery of 91.11% was acquired. With the combination of reagents, the dosage of reagents was saved, the cost of flotation was decreased, and a good recovery index of cassiterite was obtained.

关 键 词：微细粒锡石 浮选 捕收剂 

分 类 号：TD952[矿业工程—选矿]