化工学报2011，Vol.62Issue(6)：1662-1668,7.DOI:10.3969/j.issn.0438-1157.2011.06.028
浮选药剂对嗜酸氧化亚铁硫杆菌活性的影响
Effect of flotation reagents on activity of Acidthiobacillus ferrooxidans
摘要
Abstract
Bioleaching of flotation tailings is different from that of primary ore because of the residual reagents in flotation tailings. The effects of seven flotation reagents (ethyl xanthate, isopropyl xanthate,butyl xanthate, isoamyl xanthate, butylamine, 2 oil and 11 oil) on the growth and activity of the strain Acidthiobacillus ferrooxidans LD-1 have been studied in this paper. The results showed that all of them could depress the growth and activity of the strain At. f LD-1. From weak to strong, their inhibition effect on the strain At. f LD-1 was in following order: 11# oil, 2# oil, butyl xanthate, isopropyl xanthate,isoamyl xanthate, ethyl xanthate, and butylamine. It was found that the depression of collectors on the strain At. f LD-1 was stronger than that of frother, especially ethyl xanthate and butylamine. The oxidation rate of ferrous ion (Fe2+) can reach about 90％ after 24 h without any flotation reagents, but the reduction of the rate was lower than 5％ with 80 mg · L-1 ethyl xanthate or butylamine in culture system. With increase of reagent dosage, the depression of flotation reagents on the strain At. f LD-1 would enhance.关键词
浮选药剂/微生物浸出/嗜酸氧化亚铁硫杆菌/菌种活性/影响规律Key words
flotation reagent/ microbiological leaching/ Acidthiobacillus ferrooxidans/ bacterial activity/influence rules分类
矿业与冶金引用本文复制引用
董颖博,林海,陆琳斐,温洪伟,莫晓兰,傅开彬,汪涵..浮选药剂对嗜酸氧化亚铁硫杆菌活性的影响[J].化工学报,2011,62(6):1662-1668,7.基金项目
金属矿山高效开采与安全教育部重点实验室资助. （）
