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Application of weathered ores modified by sodiumizing agent as pellet binder

A technology of weathering ore and sodium agent, which is applied in the field of binders, can solve problems such as difficult to be used and waste of resources, and achieve the effect of avoiding waste of resources and broad application prospects

Inactive Publication Date: 2012-05-23
PANZHIHUA GANGCHENG GRP MIYI RUIDI MINING +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high mud content of weathered ore and the common secondary changes of iron-containing oxides, it is difficult to be used, resulting in a great waste of iron, titanium, vanadium and other resources

Method used

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  • Application of weathered ores modified by sodiumizing agent as pellet binder

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Experimental program
Comparison scheme
Effect test

preparation example Construction

[0015] Embodiment The preparation of pellet binder of the present invention

[0016] Mix 60kg of weathered ore, 5kg of sodiumizing agent (sodium carbonate), add 35kg of water, squeeze and mix evenly, select the extrusion distance of 2mm, age for 14 days, dry in the sun, and finely grind by Raymond mill to make a particle size of - 200-mesh micropowder with a content >90% is mixed with 10% bentonite to obtain the pellet binder of the present invention.

[0017] After testing, the main chemical components of the pellet binder of the present invention are: TFe: 24.20%, FeO: 8.32%, TiO 2 : 5.74%, V 2 o 5 : 0.200%, moisture: 7.1%, particle size -200 mesh content: 94.90%. The colloid value of the pellet binder of the present invention is 37.00%, the swelling capacity is 2.00ml / g, the blue absorption amount is 12.40ml / g, and the water absorption rate is 346.30%.

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Abstract

The invention relates to the application of weathered ores modified by a sodiumizing agent as pellet binder, which belongs to the field of binder. By means of the invention, the technical problem of providing the application of weathered ores modified by sodiumizing agent as the pellet binder is solved. The invention is characterized in that in the weathered ore, the TFe content is 15 to 30 percent, the FeO content is 5.1 to 9.0 percent, the TiO2 content is 5.0 to 9.2 percent, and the V2O5 content is 0.10 to 0.20 percent; and the sodiumizing agent can be a sodiumizing agent for bentonite modification, such as at least one of sodium carbonate, sodium chloride and sodium hydroxide. The invention solves the long-standing technical problem that the weathered ores are difficult to use, so thatthe resources such as iron, titanium and vanadium and the like in the weathered ores can be fully utilized, thereby avoiding the waste of resources. The invention provides a new way to utilize the weathered ores, and has a broad application prospect.

Description

technical field [0001] The invention relates to the use of weathered ore modified by a sodium agent as a pellet binder, and belongs to the field of binders. Background technique [0002] Bentonite is used as a binder for the production of acidic oxidation pellets from iron concentrates. It plays an important role in the consolidation of materials into pellets and the drying of green pellets. It has a great impact on production cost and production cost, and choosing high-quality and low-cost substitutes has always been a major issue for metallurgists. [0003] The Baima Iron Mine in the Panzhihua area of ​​my country is a very large hillside open-pit mine, and its weathered ore content accounts for about 20% (the amount reaches more than 100 million tons). The TFe content of the weathered ore is 15-30%, and the FeO content is 5.1-9.0%. ,TiO 2 The content is 5.0~9.2%, V 2 o 5 The content is 0.10-0.20%. Due to the high mud content of weathered ore and the common secondary c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B1/243
Inventor 王宾李坚吴斌刘泽贵杨克军雷顺军范振武
Owner PANZHIHUA GANGCHENG GRP MIYI RUIDI MINING