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High-phosphorus oolitic hematite high-magnetic reverse-flotation dephosphorization and desilicication mineral processing technology

A hematite and reverse flotation technology, applied in the field of mineral processing, can solve the problems of high iron distribution rate, serious muddy degree, and reduced separation efficiency, and achieve good selectivity

Inactive Publication Date: 2017-08-18
北京中矿东方矿业有限公司
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Problems solved by technology

[0006] 3. The degree of mudification is serious
This type of iron ore will produce a large amount of secondary mud during the grinding process, and the iron distribution rate in the fine mud is relatively high, which significantly reduces the separation efficiency

Method used

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Embodiment Construction

[0017] An embodiment of the high-phosphorus oolitic hematite strong magnetic reverse flotation dephosphorization and desiliconization process of the present invention. Huoshaoping Iron Mine in Yichang, Hubei belongs to high-phosphorus oolitic hematite, the raw ore grade is 35.82%, and the phosphorus content is 0.912%. Grinding ⑸, Dephosphorization Rough Selection ⑹, Dephosphorization Selection ⑺, Dephosphorization selection ⑻, dephosphorization scanning ⑼, dephosphorization scanning , Desiliconization , desiliconization selection and desiliconization composition, see figure 1 .

[0018] 1. First, restore the geological grade through a stage of grinding-strong magnetic separation. Occurrence state of this kind of resource ore body is thin plate, gently inclined, and deeply buried. There are local ore body outcrops, and cave mining must be carried out, and the amount of ore that can be mined is relatively small compared with the entire ore body. In addition, t...

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Abstract

The invention relates to a high-phosphorus oolitic hematite high-magnetic reverse-flotation dephosphorization and desilicication mineral processing technology used in the field of mineral processing. The technological processes include (1) mineral feeding, (2) mineral grinding, (3) first-stage high magnetic separation, (4) second-stage high magnetic separation, (5) regrinding, (6) dephosphorization roughing, (7) dephosphorization selection, (8) dephosphorization selection, (9) dephosphorization scavenging, dephosphorization scavenging, desilicication roughing, desilicication selection and selection scavenging. According to the technology, the high-magnetic tailing discarding-reverse flotation dephosphorization-reverse flotation desilicication double reverse flotation beneficiation combined method technology is adopted, dephosphorization and desilicication efficient composite collecting agents TL and BK-859 are adopted, the separation efficiency of high-phosphorus oolitic hematite is obviously improved, the problems of iron increase and phosphorous reduction of this kind of iron mine are successfully solved, and exploitation of the kind of resource becomes possible. By means of the high-phosphorus oolitic hematite high-magnetic reverse-flotation dephosphorization and desilicication mineral processing technology, high-phosphorus oolitic hematite beneficiation technical indexes reach the conditions that the iron ore concentrate grade is higher than 55.74%, contained phosphorus is lower than 0.12%, the iron recovery rate is higher than 62%, and the phosphorus removal rate is higher than 94%.

Description

technical field [0001] The invention relates to a high-phosphorus oolitic hematite high-phosphorus oolitic hematite strong magnetic reverse flotation dephosphorization and desiliconization beneficiation process used in the field of mineral processing. Background technique [0002] my country's "Ningxiang-style" high-phosphorus oolitic hematite and western Hubei are rich in resources. The country's prospective reserves are more than 10 billion tons, and western Hubei (Enshi, Yichang) is more concentrated. Western Hubei The proven reserves are nearly 2.5 billion tons, and the prospective reserves are more than 5 billion tons. This type of iron resource belongs to high-phosphorus oolitic hematite, which belongs to neritic deposits. The ore is mainly in oolitic structure, and is produced in a concentric ring structure. The iron-bearing mineral aggregates are mainly "iron-rich oolitic" oolitic The cementation type of grains is mainly micrite cementation, and the cements include a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B9/00
CPCB03B9/00
Inventor 饶绮麟邵广全冯晓燕王银东刘耀武
Owner 北京中矿东方矿业有限公司
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