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Method for removing sulfur and phosphorus for adsorption ore-dressing

An adsorption method and an adsorbent technology, applied in the field of phosphorus and adsorption ore dressing and sulfur removal, can solve the problems of low process cost, inability to deal with free phosphorus and sulfur, and low equipment energy consumption, and achieve low process cost and low mineral processing cost. , The effect of low energy consumption of equipment

Inactive Publication Date: 2006-08-09
宁勤功
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AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method that can solve the problem that the flotation process cannot handle free phosphorus and sulfur, the equipment energy consumption is low, the process cost is low, and the technology controllability is good.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Using magnetite from Guangdi Mountain, Jiuchang Township, Wuding County, Chuxiong, Yunnan, the ore properties are: magnetite Fe 3 o 4 42%, P4.3% mineral intercalation particle size is 0.2-0.043 mm, crushed, ball milled, classified to minus 200 mesh, magnetically separated by magnetic separator, the iron concentrate from magnetic separation directly enters the mixing tank and is controlled by electronic scales , put 8 kg of diatomite adsorbent into each ton of iron concentrate, after 10 minutes of high-speed stirring, the iron concentrate enters the magnetic separator again to separate the adsorbent (diatomite) after stirring; the iron concentrate powder enters In the fine powder pool, the adsorbent enters the collection pool, and Fe is obtained after sampling and testing. 3 o 4 42%, P0.082% iron ore concentrate, the phosphorus index has reached the smelting index.

[0019] Example 1:

[0020] Use pyrite from Fawo, Lvquan County, Kunming City, Yunnan Province. The ...

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PUM

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Abstract

This invention is a method of dressing ore and eliminating sulfur and phosphor by adsorption method. Its feature is that agitating barrel is added on existing magnetic separation and reselection technique, iron finished ore selected is added into the barrel and diatomite is added as adsorbent. 8-12 kilogram diatomite is added into every ton iron finished ore, then adsorbent is separated after high speed agitation, so the refined flour ore of P<0.082%,S<0.064% is got. The processing load is big when using this method, equipment is simple, energy consumption of equipment is low, technique cost is low, technique control ability is good, product quality is stable, auxiliary material cost is low and ore dressing cost is low.

Description

technical field [0001] The invention relates to the technical field of ore dressing, in particular to a method for removing sulfur and phosphorus in ore dressing by adsorption. Background technique [0002] Phosphorus is symbiotic with iron minerals, and the relationship between sulfide, free sulfur, phosphorus and polymetallic associated ores of iron ore is very close and complicated. The existing process for treating sulfur and phosphorus-containing ores is mainly: magnetic separation, gravity separation-sulfide flotation joint process, which has the following defects: [0003] (1) The existing flotation process for sulfur and phosphorus removal is complex, especially for phosphorus removal, which requires high temperature (40°C) to remove phosphorus by flotation. The cost is too high and the process technology is difficult to control. It is applied in iron ore , resulting in high cost of iron concentrate, difficult to guarantee quality, and poor commerciality. [0004] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00B03D1/001
Inventor 宁勤功
Owner 宁勤功
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