铜钼分离抑制剂分子生命周期评价

Molecular Life Cycle Assessment of Copper-molybdenum Separation Inhibitors

针对选矿药剂对环境影响较大的问题,首次利用生命周期评价技术,建立了铜钼分离抑制剂NaHS与BK511生命周期排放评价模型,并对比二者的生命周期排放评价指标。研究表明:BK511产品毒性低,用量少,采用一锅法制备技术,生产和制备过程不产生三废,使用过程有害物质排放少,说明与NaHS比较,BK511生命周期排放综合外部成本降低,对环境影响小。从产品抑制性能及降低生命周期排放角度两个方面证明,BK511是清洁、高效的铜钼分离抑制剂,是NaHS优良的替代物。

Aiming at the problem that some of flotation agents have a great impact on the environment,this paper establishes the life cycle emission evaluation model of the copper and molybdenum separation inhibitors NaHS and BK511,and compares the life cycle emission evaluation indexes of NaHS with the indexes of BK511 by using life cycle evaluation technology for the first time.The results showed that:compared with NaHS,applying one-pot synthetic technology,the preparation and production process of BK511 does not produce any pollution.Less waste discharged during the flotation process with lower toxicity and less reagent dosage indicates BK511 has comprehensively better external life cycle footprint.BK511 is proved to be a clean and high-efficiency copper-molybdenum separation inhibitors and an excellent substitute for NaHS in terms of product inhibition performance and life cycle emission.