Complex ore beneficiation process with magnetite and pyrrhotite
A technology of pyrrhotite and magnetite, which is applied in the field of complex ore beneficiation technology, can solve the problems of poor flotation effect, poor floatability of pyrrhotite, and high cost
Active Publication Date: 2021-07-06
TONGLING CHEM GRP XINQIAO MINING IND CO LTD
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Problems solved by technology
If the flotation method is adopted, the floatability of pyrrhotite is poor, the flotation effect is poor, and concentrated sulfuric acid is often used for activation, the cost is high and the safety risk of the production process is great.
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[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.
[0025] It should be understood, however, that these descriptions are exemplary only, and are not intended to limit the scope of the present disclosure. In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. Also, in the following description, descriptions of well-known technologies are omitted in order to avoid unnecessarily obscuring the concept of the present disclosure.
[0026] The terminology used herein is for the purpose of describing particular embodiments only, and i...
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The invention provides a complex ore beneficiation process containing magnetite and pyrrhotite, comprising step (1): crushing and grinding the complex ore, and controlling the particle size so that the particle size of the grinding product is below 0.074mm Accounting for at least 80%; step (2): subjecting the grinding product to magnetic separation to obtain rough iron concentrate containing magnetite and pyrrhotite; step (3): subjecting the rough iron concentrate to first flotation , the first foam product obtained is sulfur concentrate, and the first tank tail product obtained is processed by step (4), wherein, the agent system of the first flotation includes: the mixed collector consumption is 300~400g / t , the dosage of the first activator is 5-7kg / t, the dosage of the second activator is 1-3kg / t, and the dosage of foaming agent is 0-250g / t; step (4): carry out the second In the first flotation, the second foam product obtained is sulfur concentrate, and the second tank tail product is iron concentrate, wherein no reagent is added in the second flotation process.
Description
technical field [0001] The invention relates to the technical field of mineral processing, in particular to a complex ore beneficiation process containing magnetite and pyrrhotite. Background technique [0002] Mineral resources are a kind of non-renewable resources, which play a very important role in the process of national economic development. With the continuous mining and utilization of mineral resources by human beings, easy-to-select ore resources are decreasing day by day. At present, the main processing is poor, fine, miscellaneous and difficult-to-select mineral resources. The research and development of advanced technology and technology of refractory mineral resources is of great significance to fully utilize mineral resources, improve resource utilization rate and economic benefits of mines, and reduce environmental pollution. [0003] As my country's efforts to protect the environment continue to increase, the quality requirements for iron concentrates are ge...
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IPC IPC(8): B03B7/00B03B9/00B03D1/012B03D1/002B03D101/02B03D103/02
Inventor 熊天佑邱廷省王真韩仁海汪庶民陈婷婷
Owner TONGLING CHEM GRP XINQIAO MINING IND CO LTD