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1)  coal-derived pyrite
煤系硫铁矿
1.
A study was made on new technology for comprehensive utilization of the coal-derived pyrite from YunNan.
对云南某地煤系硫铁矿进行综合利用新工艺研究,通过重-浮联合流程选别含硫大于47%的低碳高硫精矿,该硫精矿沸腾焙烧制酸后得到残硫小于0。
2)  pyrites in coal gangue
煤系硫铁矿
1.
Application of pyrites in coal gangue in treatment of wastewater containing Ni(II)was studied.
煤系硫铁矿在处理含镍废水中,废水的pH值,反应时间,粒度,加入量,温度,搅拌等对Ni2+的去除率影响较大。
3)  coal pyrite
煤系硫铁矿
1.
The paper designs a set of the reaction device of producing PFS by HNO 3 catalyst oxidizing coal pyrite, which includes FeS 2 oxidizing reactor, Fe 2+ oxidizing reactor, circula ting pump and jet pump, etc.
设计出一套利用HNO3 催化氧化煤系硫铁矿(FeS2) 生产聚合硫酸铁(PFS) 的反应系统, 包括FeS2 氧化反应器、Fe2+ 氧化反应器、循环泵和射流器等。
2.
The production route and facility for producing polymeric ferric sulfate by catalytic oxidation of coal pyrite with HNO 3 are given.
提出一套利用 HNO3催化氧化煤系硫铁矿 (Fe S2 )生产聚合硫酸铁 (PFS)的反应系统。
4)  modified pyrites in coal gangue
改性煤系硫铁矿
5)  coal-pyrite
煤系黄铁矿
1.
Theoretical analysis for the surface properties of coal-pyrite and mass susceptibilities of different kinds of coal-pyrite crystal forms and coats are studied.
对煤系黄铁矿的表面特性进行了理论分析,并测定了煤及煤系黄铁矿的磁化率。
6)  coal pyrite
煤系黄铁矿
1.
The utilization of nitrogen and energy sources by Thiobacillus ferrooxidans was investigated,and the removal of sulfur from coal pyrite exposed to the air for different time was studied.
)对不同氮源、能源的利用,研究了空气中氧化不同时间的煤系黄铁矿的脱硫情况。
2.
This paper introduces fundamental theories and application of X ray electronic spectroscopy, analyzes the adsorption of Ca++ on the surface of coal pyrite through the ultrasonic treatment by adding the CaO into the coal pulp.
介绍光电子能谱(XPS)的基本原理和应用,分析煤系黄铁矿添加CaO并经超声处理后 ,Ca++在黄铁矿表面的吸附特性,证明Ca++在黄铁矿表面是主要抑制因素,超声处理可以强化CaO对煤系黄铁矿的抑制。
补充资料:硫铁矿氧化焙烧
分子式:
CAS号:

性质:采用较高过剩空气量氧化焙烧硫铁矿的方法。此种焙烧在沸腾炉中进行,生成的矿渣主要为三氧化二铁。反应较完全。但炉气中三氧化硫含量较高,增加净化工序废酸的处理量,且生成的炉渣无法借磁选获得高品位的铁精砂,不利于低品位硫铁矿矿渣的综合利用。

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