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Eclogitic rutile ore sorting method

A technology of rutile ore and beneficiation method, which is applied in the direction of chemical instruments and methods, flotation, wet separation, etc., can solve the problems of single research and development and application of rutile collector, low rutile separation index, high economic cost, etc., and achieve improvement Comprehensive recovery level, improvement of low comprehensive utilization efficiency and low equipment investment effect

Active Publication Date: 2010-11-10
西安西北有色地质研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

(3) It is difficult to make a breakthrough in the research of rutile beneficiation technology, and the rutile separation index is low, especially the consideration of comprehensive recovery is less. Therefore, only a breakthrough in eclogite-type rutile beneficiation technology can turn resource advantages into industrial advantages and open up a broad field. market expectation
(2) The research and development and application of rutile collectors are relatively simple, and the characteristics are: low toxicity, good performance and high price, such as styrene phosphonic acid; good performance, cheap price but high toxicity, such as benzyl arsenic acid, etc.; It is cheap, low toxicity but poor selectivity
And their common point is that the dosage of chemicals is large and the economic cost is high. Therefore, it is necessary to research and develop rutile collectors, and combine the rutile beneficiation process, from the previous single gravity or flotation process to the joint separation process. To reduce costs and obtain better comprehensive recovery and sorting indicators

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] According to the present invention, laboratory small-scale test has been carried out, specifically comprising the following steps:

[0022] Step 1, ore grinding: Grinding the raw ore of rutile with a wet ball mill, the ore grinding to a particle size of -0.074mm, the quality of the rutile ore with a particle size of -0.074mm in the slurry is 31% ( That is, the grinding fineness -0.074mm accounts for 31%);

[0023] Step 2. Prioritize the flotation of garnet: the pulp in step 1 enters the flotation tank, add an alkaline regulator to the pulp, adjust the pH of the pulp to > 8.5, and then add collectors, auxiliary collectors and foaming to the pulp For garnet flotation, the dosage of collector is 100g / ton rutile raw ore, 175g / ton rutile raw ore or 250g / ton rutile raw ore, and the dosage of auxiliary collector is 60g / ton gold Redstone raw ore, 70g / ton rutile raw ore or 80g / ton rutile raw ore, the amount of foaming agent is 15g / ton rutile raw ore, 20g / ton rutile raw ore or 2...

Embodiment 2

[0034] Carried out laboratory small-scale test according to the present invention, grinding fineness-0.074mm accounts for 45%, other steps are the same as embodiment 1, and test result is shown in Table 2.

[0035] Table 2 The closed-circuit test results of the whole process with the grinding fineness -0.074mm accounting for 45%

[0036]

[0037] In the whole process, the yield of garnet concentrate is 56.19%, the garnet content is about 92%, and the recovery rate of garnet reaches more than 90%.

[0038] In the whole process, the yield of omphacite concentrate is 27.50%, the content of omphacite is 90-92%, and the recovery rate of omphacite reaches more than 85%.

Embodiment 3

[0040] Carried out laboratory small-scale test according to the present invention, grinding fineness-0.074mm accounts for 55%, other steps are the same as embodiment 1, and test result is shown in Table 3.

[0041] Table 3 The closed-circuit test results of the whole process with the grinding fineness -0.074mm accounting for 55%

[0042]

[0043] The yield of garnet concentrate in the whole process is 54.22%, the content of garnet is about 91-95%, and the recovery rate of garnet reaches about 90%.

[0044] In the whole process, the yield of omphacite concentrate is 24.51%, the omphacite content is 91-93%, and the recovery rate of omphacite reaches about 85%.

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Abstract

The invention provides an eclogitic rutile ore sorting method. The method comprises the following steps of: floating garnet after the eclogitic rutile ore is grinded so as to obtain garnet concentrate; grading the garnet tailing; performing collective floatation on garnet and rutile mixed rough concentrate to separate omphacite so as to obtain omphacite concentrate; separating the mixed rough concentrate to obtain garnet concentrate and rutile concentrate; and magnetically separating the rutile rough concentrate to obtain rutile concentrate. Most garnet is preferentially floated, so the method ensures great reduction of the using amount of reagents for the subsequent rutile sorting operation and reduction of rutile sorting cost, realizes the separation of the rutile, the garnet and the omphacite by adopting floatation and magnetic separation by controlling the pH value of the ore pulp, basically realizes no tailing emission, reduces environmental pollution, has the advantages of low cost and easy implementation, and can remarkably improve the comprehensive reclaiming level of the eclogitic rutile ore.

Description

technical field [0001] The invention relates to a mechanical beneficiation process, in particular to a beneficiation method of eclogite type rutile ore. Background technique [0002] Rutile is the main raw material for smelting titanium metal, manufacturing titanium dioxide and welding flux for welding rods. The vast majority of domestic natural rutile resources are low-grade primary ore, and its reserves account for 86% of the total national rutile resources. The beneficiation research on eclogite-type rutile deposits is mainly considered from the following aspects: (1) Rutile deposits in Shandong and Jiangsu are all large and extra-large eclogite-type rutile deposits. Mining and exploration, and associated with a large number of garnet and omphacite minerals. Rutile products have the advantages of less impurities, high product quality, less "three wastes" in the production process of titanium dioxide and titanium sponge by the chloride method, and have strong market comp...

Claims

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Application Information

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IPC IPC(8): B03B7/00B03B1/00B03D1/00
Inventor 马晶王勇海
Owner 西安西北有色地质研究院有限公司
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