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Floatation grading production technology of high-quality refractory bauxite

A high-alumina bauxite, a production method technology, applied in flotation, solid separation, etc.

Active Publication Date: 2012-09-26
天津泽希矿产加工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a high-quality high-quality refractory high-alumina bauxite flotation classification production technology in order to solve the reuse problem of mixed-grade refractory high-alumina bauxite in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Example 1, a high-quality refractory high-bauxite flotation classification production technology, the high-bauxite raw meal ore powder with a mass fraction of alumina of 62% to 76%, is added with water and stirred until the mass fraction of the pulp concentration is 30% Then send the ore slurry to a wet grinding machine for grinding to a fineness of 97%-500 mesh, and pump it to the mixing drum for stirring, and at the same time add the regulator NaOH or NaOH in order 2 CO 3 and (NaPO 3 ) n or Na 2 O mSiO 2 , collector HZB or oxidized paraffin soap or sodium oleate for pulping.

[0012] Pump the slurry after slurry adjustment to the flotation machine for five times of flotation, and obtain two series of products, high-bauxite concentrate and tailings, in which the mass fraction of alumina in the concentrate is between 72% and 80%. , while the tailings alumina mass fraction is between 50% and 65%. The mass fraction of pulp in the flotation process is between 5%.

...

Embodiment 2

[0014] Example 2, a high-quality refractory high-bauxite flotation classification production technology, the high-bauxite raw meal ore powder with a mass fraction of alumina of 62% to 76%, is added with water and stirred until the mass fraction of the pulp concentration is 70% Then send the ore slurry to the wet grinding machine to grind to a fineness of 95%-200 mesh, and use the pump to stir the mixing drum, and at the same time add the regulator NaOH or NaOH in order 2 CO 3 and (NaPO 3 ) n or Na 2 O mSiO 2 , collector HZB or oxidized paraffin soap or sodium oleate for pulping.

[0015] Pump the slurry after slurry adjustment to the flotation machine for three times of flotation, and obtain two series of products, high-bauxite concentrate and tailings, in which the mass fraction of alumina in the concentrate is between 72% and 80%. The tailings alumina mass fraction is between 50% and 65%. The mass fraction of pulp in the flotation process is between 50%.

[0016] The ...

Embodiment 3

[0017] Example 3, a high-quality refractory high-bauxite flotation classification production technology, the high-bauxite raw meal ore powder with a mass fraction of alumina of 62% to 76%, is added with water and stirred until the mass fraction of the pulp concentration is 45% , and then send the pulp to a wet grinding machine for grinding to a fineness of 95%-325 mesh, and pump it to the mixing drum for stirring, and at the same time add the regulator NaOH or NaOH in sequence 2 CO 3 and (NaPO 3 ) n or Na 2 O mSiO 2 , collector HZB or oxidized paraffin soap or sodium oleate for pulping.

[0018] Pump the pulp after slurry adjustment to the flotation machine for six times of flotation, and obtain two series of products, high-bauxite concentrate and tailings, in which the mass fraction of alumina in the concentrate is between 72% and 80%. , while the tailings alumina mass fraction is between 50% and 65%. The mass fraction of pulp in the flotation process is between 30%.

...

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Abstract

The invention relates to a beneficiation technology by a floatation method, in particular to a floatation grading production technology of high-quality refractory bauxite, and solves the recycling problem of mixed-level refractory bauxite ore in the prior art. The method comprises the steps of adding water to mineral powder for wet grinding until the fineness of the ore pulp is between 95%-200 meshes to 97%-500 meshes, sending the ore pulp by a pump to an agitator drum for agitating, and adding regulators NaOH or Na2CO3 and (NaPO3)n or Na2O-mSiO2, a collecting agent HZB or oxidized paraffin wax soap or sodium oleate in sequence for regulating pulp. The content of the ore pulp in the agitator drum is 30%-70% by weight percentage. The bauxite raw material purchased in a mixed-level manner is grinded and processed by pulp regulation by adding drugs to obtain the ore pulp and the ore pulp is processed by floatation so as to reach the purpose of manually grading the bauxite ore.

Description

technical field [0001] The invention relates to a flotation beneficiation technology, in particular to a high-quality refractory high-alumina bauxite flotation and classification production technology. Background technique [0002] my country's high-alumina bauxite resources are abundant, but the grade distribution of high-alumina bauxite ore is uneven. Since the production of high-alumina bauxite clinker has always used the method of directly firing high-alumina bauxite lump ore in kilns, the classification and quality of products directly depend on the quality of high-alumina bauxite ore. In particular, my country's export of bauxite is basically w(Al 2 o 3 ) more than 85% of high-grade bauxite clinker, but this part of resources only accounts for a few percent of the total reserves, so the good and bad are selected and discarded during mining, forming a large amount of mixed grade materials. These materials cannot be used in block production, resulting in a lot of wast...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/00B03D101/02
Inventor 胡建生
Owner 天津泽希矿产加工有限公司