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HUANG Zhiying, ZOU Zhengqin, XIAO Jingjing, JI Ruifeng, FAN Zhiguo. Discussion on problems and application of flotation of phosphorus at normal temperature in Baiquan iron mine[J]. CHINA MINING MAGAZINE, 2021, 30(12): 141-145. DOI: 10.12075/j.issn.1004-4051.2021.12.010
Citation: HUANG Zhiying, ZOU Zhengqin, XIAO Jingjing, JI Ruifeng, FAN Zhiguo. Discussion on problems and application of flotation of phosphorus at normal temperature in Baiquan iron mine[J]. CHINA MINING MAGAZINE, 2021, 30(12): 141-145. DOI: 10.12075/j.issn.1004-4051.2021.12.010

Discussion on problems and application of flotation of phosphorus at normal temperature in Baiquan iron mine

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  • Received Date: August 19, 2020
  • Available Online: April 18, 2023
  • Normal temperature flotation is an innovative measure to break the traditional pulp heating flotation, it plays a vital role in reducing the flotation cost, however, there are obvious differences for different ores in different regions.In order to efficiently develop and utilize the associated resources of low-grade colloidal phosphate rock in north China, this paper taking Baiquan iron mine in Chengde area as an example, studying the ore properties of low-grade phosphorus-containing iron ore, and the technological process of phosphorus recovery by flotation at normal temperature.By means of multi-element analysis, XRD analysis, particle size screening test and flotation test, etc, in-depth analysis are carried out from the aspects of ore properties, particle size, flotation time, flotation phenomenon and the role of water glass.Aiming at the problems of unreasonable particle size distribution of flotation raw ore, too long flotation time, easy “trough” in roughing, weak effect of water glass and so on, some suggestions are put forward to improve the pulp concentration and scraper speed, improve the pulp level, screen out coarse particles in advance and improve the grinding medium conditions.After the implementation of the above measures, the recovery rate of phosphorus separation in Baiquan iron mine has increased by about 15%, and the annual output of phosphorus refined powder has increased by about 27 000 tons, achieving the goal of improving the comprehensive rate of resources, which will promote the technical progress of flotation of low-grade phosphorus at normal temperature in eastern Hebei province.
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