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Method for recovering pollucite from pegmatite type tailings

A technology for pegmatite and cesium garnet, which is applied in the field of recovering cesium garnet from pegmatite-type tailings, can solve problems such as similar surface properties, and achieve the effects of reducing impact, realizing low grade and avoiding entrainment.

Pending Publication Date: 2022-07-29
有研资源环境技术研究院(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, cesium garnet is a typical silicate mineral, and its associated main gangue minerals feldspar, quartz, etc. also belong to silicate minerals, with similar specific gravity and similar surface properties, and there is no effective separation method at present.

Method used

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  • Method for recovering pollucite from pegmatite type tailings
  • Method for recovering pollucite from pegmatite type tailings
  • Method for recovering pollucite from pegmatite type tailings

Examples

Experimental program
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Effect test

Embodiment 1

[0083] refer to image 3 , image 3 A schematic diagram of the method for recovering cesium garnet from pegmatite-type old tailings in Example 1 of the present invention is shown, such as image 3 shown, including:

[0084] The pegmatite-type tailings with coarse particle size were obtained as samples, and the main element content in the pegmatite-type tailings was: Cs 2 O 0.65%, Fe 0.64%, SiO 2 76.96%, Al 2 O 3 14.52, Na 2 O 3.64%, K 2 O 1.93%, CaO 0.44%. The main useful minerals are caesium garnet and lepidolite; gangue minerals are mainly quartz, feldspar and mica.

[0085] The sample is subjected to grinding to form a closed loop, the part with particle size larger than 0.15mm is returned to sieve through grinding, and the particle size is less than 0.15mm, until the particle size of the product after grinding is not more than 0.15mm, and the product after grinding is sent to the ultra After desliming, the fine purifying and classifying machine is slurried to ob...

Embodiment 2

[0094] The pegmatite-type tailings with coarse particle size were obtained as samples, and the main element content in the pegmatite-type tailings was: Cs 2 O 1.02%, Li 2 O 1.3%, Fe 2 O 31.5%, SiO 2 72.1%, Al 2 O 3 14.8, Na 2 O 2.75%, K 2 O 2.35%, CaO 0.91%. The main useful minerals are caesium garnet and lithium feldspar; gangue minerals are mainly quartz, potassium feldspar, albite, amphibole and mica.

[0095] The sample is subjected to grinding to form a closed loop, the part with particle size larger than 0.15mm is returned to sieve through grinding, and the particle size is less than 0.15mm, until the particle size of the product after grinding is not more than 0.15mm, and the product after grinding is sent to the ultra After desliming, the fine purifying and classifying machine is slurried to obtain pulp with a mass fraction of 12.6%, of which the working pressure of the ultra-fine purifying and classifying machine is 0.61 MPa;

[0096] The ore pulp is subjec...

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Abstract

The invention provides a method for recovering pollucite from pegmatite type tailings, which comprises the following steps: grinding the pegmatite type tailings and forming a closed cycle until the particle size of the ground product is not greater than the target particle size, and desliming the ground product by adopting an ultrafine purification grader, the deslimed settled sand is stirred and mixed to form ore pulp; the ore pulp is subjected to magnetic separation to remove magnetic minerals, and magnetic separation tailings are obtained; concentrating the magnetic separation tailings until the solid mass concentration is 25-35%, then adding the magnetic separation tailings into a flotation tank, and carrying out flotation on impurities in the magnetic separation tailings, the impurities comprising easily floating substances and feldspar; and the magnetic separation tailings subjected to impurity flotation are subjected to flotation, quartz is separated out, and then the pollucite is obtained through recovery. Impurities difficult to float are removed through pretreatment steps such as desliming and magnetic separation after multiple times of ore grinding, and then pollucite is recycled through multiple times of flotation.

Description

technical field [0001] The invention relates to the technical field of beneficiation, in particular to a method for recovering cesium garnet from pegmatite-type tailings. Background technique [0002] Mineral resources are a kind of non-renewable resources. With the continuous development and utilization of human minerals, the limited mineral resources are gradually exhausted. Although tailings are wastes discharged from mines, they are also a potential secondary resource, and their effective development is one of the important ways to realize resource recycling. Especially for some old tailings with more associated metals, comprehensive recovery in tailings is more meaningful. [0003] Cesium is an important key strategic metal element, known as "the metal with long eyes". Granite pegmatite is one of the important rock types in which cesium occurs. For a long time, in terms of consumption, pegmatite type Cesium is rich in resources and high in grade. It can be directly mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00
CPCB03B7/00Y02W30/52
Inventor 陈勇宋永胜温建康李文娟李开国
Owner 有研资源环境技术研究院(北京)有限公司