Beneficiation method of refractory low-grade scheelite
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A beneficiation method and scheelite technology, applied in chemical instruments and methods, flotation, wet separation, etc., can solve the problems of large influence of gangue minerals, poor flotation collection effect, and low comprehensive recovery rate, etc. The recovery index is high, the sorting effect is good, and the effect of avoiding mechanical loss
Active Publication Date: 2014-12-24
JIANGXI UNIV OF SCI & TECH
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[0004] In view of the problems existing in the existing beneficiation technology of low-grade scheelite, such as great influence of gangue minerals, high difficulty in sorting, low sorting efficiency, poor flotation collection effect, and low comprehensive recovery rate, the purpose of the present invention is to provide a A beneficiation method for refractory low-grade scheelite ore that is stable, efficient, has good separation effect, strong adaptability, high recovery index, and low production cost
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Embodiment 1
[0043] Mix 150g of dimethyl dicocoyl ammonium chloride, 100g of lauryl ether amine, and 100g of sodium laurylamine acetate, and stir at normal temperature and pressure for 100-120min to obtain collector ZX-01.
[0044] Mix 150g of 8-hydroxyquinoline, 100g of dodecanal, 200g of medilan, and 100g of 1,1,2-octyltricarboxylate, stir evenly at normal temperature and pressure to obtain collector ZW-12.
Embodiment 2
[0046] Mix 250g of dimethyl dicocoyl ammonium chloride, 100g of lauryl ether amine, and 100g of sodium laurylamine acetate, and stir at normal temperature and pressure for 100-120min to obtain collector ZX-01.
[0047] Mix 250g of 8-hydroxyquinoline, 100g of dodecanal, 200g of medilan, and 100g of 1,1,2-octyltricarboxylate, stir evenly at normal temperature and pressure to obtain collector ZW-12.
Embodiment 3
[0049] Mix 200g of dimethyl dicocoyl ammonium chloride, 100g of lauryl ether amine, and 100g of sodium laurylamine acetate, stir at normal temperature and pressure for 100-120min to obtain collector ZX-01.
[0050] Mix 200g of 8-hydroxyquinoline, 100g of dodecanal, 200g of medilan, and 100g of 1,1,2-octyltricarboxylate, stir evenly at normal temperature and pressure to obtain collector ZW-12.
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Abstract
The invention provides a beneficiation method of refractory low-grade scheelite. The method adopts slurry collecting agent ZX-01, slurry collecting agent 2-hydroxy-3 naphthoyl hydroxamic acid and slurry collecting agent ZW-12 which have high selective collecting capability; the method comprises the steps of finely grinding raw ore, carrying out slurry flotation, carrying out rapid beneficiation on scheelite, selecting the scheelite, carrying out slow beneficiation on scheelite, slowly selecting the scheelite, carrying out centrifugal reselection on middlings, and the like to finally obtain the scheelite concentrate. The low-grade scheelite sorted by the method is good in sorting indexes; the scheelite concentrate is higher in grade and yield; the beneficiation method of the refractory low-grade scheelite is stable, efficient, good in sorting effect, high in adaptability, high in recovery index and low in production cost, thus being suitable for popularization and application.
Description
technical field [0001] The invention belongs to the field of ore dressing, in particular to a method for beneficiating refractory low-grade scheelite. Background technique [0002] Scheelite is mostly contained in skarn and gneiss deposits, which leads to complex types of gangue minerals derived from ore bodies. Typical gangues such as mica, feldspar, fluorspar, epidote, and chlorite High mineral content and good buoyancy, strong adsorption capacity and serious mudification, easy to enter the tungsten separation process, difficult to disperse and suppress, affecting the recovery of tungsten ore dressing; at the same time, most scheelites are of low grade and uneven particle size , making it difficult to choose a scheelite beneficiation process. For these reasons, the existing scheelite mainly adopts two methods to recover, one is the "Petronov method" based on flotation, which uses sodium carbonate as regulator, water glass as inhibitor and fatty acid as The collector is u...
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