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Combined collector for feldspar and quartz flotation separation and application method

A combination of collector and feldspar technology, applied in flotation, solid separation, etc., can solve problems such as difficult to obtain concentrate products, high mutual content of products, unsatisfactory separation effect, etc., achieve good flotation separation effect, improve Separation efficiency, effect of reducing magnetic agglomeration phenomenon

Active Publication Date: 2017-09-22
NORTHWEST RES INST OF MINING & METALLURGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for minerals with large feldspar content and complex types of feldspar, the separation effect of acid pumice feldspar method is not ideal, and the product has high mutual content, so it is difficult to obtain qualified concentrate products

Method used

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  • Combined collector for feldspar and quartz flotation separation and application method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The main minerals of a non-metallic mine in Shaanxi are potassium feldspar, albite, and quartz, with a content of 35%, 32%, and 31% respectively. There are also a small amount of magnetite, titanomagnetite, and maghemite in the ore ;The particle size of quartz is generally coarse, and a small part is metasomatized along the edge and middle of potassium feldspar, so it is not easy to dissociate completely; A small part of the particle size is extremely fine.

[0022] The ore feldspar and quartz separation process is as follows:

[0023] 1) Raw ore desliming: feed the crushed raw ore into a single-chamber free-settling grading box for sedimentation and desliming, remove the slime with a particle size of <0.01mm, and obtain raw ore grit products;

[0024] 2) Grinding of grit products: Wet grind the raw ore grit products obtained from desliming to a fineness of 45% and a grinding concentration of 50%;

[0025] 3) Magnetic separation: Feed the wet-milled ore pulp into the ...

Embodiment 2

[0030] The main minerals in the flotation tailings of a sulfur beneficiation plant in Gansu are quartz, plagioclase, biotite, and pyrrhotite, with contents of 77%, 20%, 1.5%, and 0.85%, respectively, and a small amount of chlorite, Magnetite, pyrrhotite; plagioclase argillization phenomenon is relatively serious, and the particle size distribution is wide, and the thickness is uneven; most of the quartz particle size is coarse and uniform, and a small part is metasomatized from the plagioclase core. tiny.

[0031] The ore feldspar and quartz separation process is as follows:

[0032] 1) Raw ore desliming: feed the crushed raw ore into a single-chamber free-settling grading box for sedimentation and desliming, remove the slime with a particle size of <0.01mm, and obtain the raw ore grit products;

[0033] 2) Grinding of grit products: Wet grind the raw ore grit products obtained from desliming to a fineness of 50% and a grinding concentration of 55%;

[0034] 3) Magnetic sepa...

Embodiment 3

[0039] The main minerals of a non-metallic mine in Guangdong are quartz, potassium feldspar, plagioclase, and a small amount of albite, biotite, magnetite, limonite, pyrite, garnet, etc. Quartz, potassium feldspar The contents of plagioclase and plagioclase are 54%, 39%, and 5% respectively. Potassium feldspar has a fine particle size and is partly muddy. The plagioclase has a wide particle size range, ranging from 2mm to 0.016mm; the quartz particle size is generally coarse.

[0040] The ore feldspar and quartz separation process is as follows:

[0041] 1) Raw ore desliming: feed the crushed raw ore into a single-chamber free-settling grading box for sedimentation and desliming, remove the slime with a particle size of <0.01mm, and obtain raw ore grit products;

[0042] 2) Grinding of grit products: Wet grind the raw ore grit products obtained from desliming to a fineness of 55% and a grinding concentration of 45%;

[0043] 3) Magnetic separation: Feed the wet-milled ore pu...

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Abstract

The invention discloses a combined collector for feldspar and quartz flotation separation and an application method. The combined collector is prepared from, by weight, 2-5 parts of 1-butyl pyridine hydrochloride, 2-5 parts of sodium dodecyl sulfate and 1-3 parts of kerosene. According to the combined collector for feldspar and quartz flotation separation, the components are simple, and the flotation separation effect is good; by serving as a cationic collector by replacing a common amine reagent, 1-butyl pyridine hydrochloride has the advantages that the adsorption capacity is higher than that of the amine reagent and the requirement on a pH medium is lower than that of the amine reagent, and can act together with an anionic collector sodium dodecyl sulfate to achieve floatation of feldspar minerals in an environment free of hydrofluoric acid; the adverse effects of flotation froth sticking and poor selectivity which are caused by the slime effect are eliminated by adding kerosene according to a certain proportion. The combined collector for feldspar and quartz flotation separation can avoid use of hydrofluoric acid in the feldspar and quartz flotation separation process and has the advantages of being high in operating safety factor and friendly to environment.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and in particular relates to a feldspar-quartz flotation separation combined collector and an application method. Background technique [0002] Quartz and feldspar are the two most common silicate minerals. They are widely used in many fields such as building materials, glass, ceramics, electronic appliances, and refractory materials. However, these two minerals are often associated together or as gangue minerals. The symbiosis with other useful minerals and the effective separation of the two can not only lay the foundation for the development and utilization of these two minerals, but also increase the economic benefits of mines for most mines that use quartz and feldspar as tailings , to achieve no tailings production. [0003] The most mature scheme for the flotation separation of quartz and feldspar is the scheme with fluorine and acid, that is, under acidic medium conditions, hy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/01B03D1/012B03D1/006B03B9/00B03D101/02
CPCB03B9/00B03D1/006B03D1/011B03D1/012B03D2201/02
Inventor 陈杜娟孙运礼郭海宁王志丰姜永智苗培杨俊龙王李鹏
Owner NORTHWEST RES INST OF MINING & METALLURGY INST
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