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Beneficiation method for rubidium-containing feldspar quarry

A beneficiation method and rubidium feldspar technology are applied in the field of beneficiation of rubidium-containing feldspar ore, which can solve the problems of reducing the amount of material input, reducing the cost of chemical extraction of rubidium, and achieving improved recovery rate, collection capacity and strong selectivity. The effect of high comprehensive utilization

Inactive Publication Date: 2016-05-25
ZHENGZHOU MINERALS COMPOSITIVE UTILIZATION RES INST CHINESE GEOLOGICAL ACAD
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Problems solved by technology

Wang Dan et al. conducted a beneficiation test study on an independent rubidium ore in my country in the fifth issue of "Metal Mine" in 2015. Using the flotation process in the alkaline slurry, the raw ore contained 0.12% rubidium, enriched to 0.28%, and rubidium The recovery rate was 65.93%, and 71.74% of the tailings were thrown away, which improved the grade of chemical extraction feed, reduced the amount of feed, and reduced the cost of chemical extraction of rubidium; Zhang Zhouwei et al. For a feldspar mine associated with rubidium in Yunnan, the raw ore was ground and then deslimed, and then mica, feldspar and quartz were separated by flotation. From the raw ore containing 0.1478% rubidium, the rubidium in the mica concentrate was 0.5675%, and the recovery rate was 39.89%. Feldspar products and quartz products are also available, but the feldspar products contain 46.22% rubidium minerals in this process and have not been recovered

Method used

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  • Beneficiation method for rubidium-containing feldspar quarry

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Experimental program
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Effect test

Embodiment 1

[0037] A rubidium-containing feldspar mine, the main minerals in the ore are albite, potassium feldspar (tianhe stone), quartz, and the secondary mineral is iron lepidolite. Rubidium mainly occurs in iron lepidolite and potassium feldspar (tianhe stone) , the raw ore contains Rb 2 O0.13%, containing K 2 O3.82%, containing Na 2 O5.14%, containing Fe 2 o 3 0.57%.

[0038] Use mineral processing method of the present invention to carry out mineral processing to above-mentioned ore, concrete steps are as follows:

[0039] 1) Take -2mm raw ore 400g to grind ore, and the grinding fineness is -0.074mm to account for 66%, and the mechanical iron with a yield of 0.8% is removed first by a weak magnetic machine at a field strength of 79.6KA / m to obtain a magnetically separated coarse pulp;

[0040] 2) The magnetically separated rough pulp is subjected to magnetic separation by a slon pulsating high-gradient strong magnetic machine with a field strength of 955.4KA / m to obtain a yie...

Embodiment 2

[0049] A rubidium-containing feldspar mine, the main minerals in the ore are albite, potassium feldspar (tianhe stone), quartz, and the secondary mineral is iron lepidolite. Rubidium mainly occurs in iron lepidolite and potassium feldspar (tianhe stone) , the raw ore contains Rb 2 O0.12%, containing K 2 O3.57%, containing Na 2 O5.30%, containing Fe 2 o 3 0.63%.

[0050] Use mineral processing method of the present invention to carry out mineral processing to above-mentioned ore, concrete steps are as follows:

[0051] 1) Take 400g of -2mm raw ore to grind ore, and the grinding fineness is -0.074mm, which accounts for 75%, and the mechanical iron with a yield of 0.92% is removed first by using a weak magnetic machine at a field strength of 119.4KA / m, to obtain a magnetically separated coarse pulp;

[0052] 2) The magnetically separated rough pulp is subjected to magnetic separation through a slon pulsating high-gradient strong magnetic machine with a field strength of 796...

Embodiment 3

[0062] A rubidium-containing feldspar mine, the main minerals in the ore are albite, potassium feldspar (tianhe stone), quartz, and the secondary mineral is iron lepidolite. Rubidium mainly occurs in iron lepidolite and potassium feldspar (tianhe stone) , the raw ore contains Rb 2 O0.12%, containing K 2 O3.85%, containing Na 2 O5.18%, containing Fe 2 o 3 0.71%.

[0063] Use mineral processing method of the present invention to carry out mineral processing to above-mentioned ore, concrete steps are as follows:

[0064] 1) Take 400g of -2mm raw ore for grinding, and the grinding fineness is -0.074mm, accounting for 50%;

[0065] 2) The raw ore after grinding is magnetically separated using a slon pulsating high-gradient strong magnetic machine with a field strength of 955.4KA / m to obtain a yield of 7.38%, a rubidium content of 0.49% and a rubidium-containing magnetic substance with a feed concentration of 25%;

[0066] 3) For non-magnetic materials, use a 1-liter flotation...

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Abstract

The invention provides a beneficiation method for rubidium-containing feldspar quarry. The method comprises the following steps of firstly, sequentially performing grinding and strong magnetic separation on raw feldspar quarry to obtain zinnwaldite and floatation feeding ores; secondly, adding a flotation reagent into the floatation feeding ores for flotation to obtain floatation foam a and flotation tailings b, wherein the flotation reagent comprises an inhibitor and a zwitterion collecting agent; thirdly, performing concentration, reagent removal and desliming on flotation tailings a , subsequently adjusting pH of ore pulp of materials, and adding the zwitterion collecting agent for separating and carrying out flotation on feldspar and quartz to obtain floatation foam b and the flotation tailings b; fourthly, combining the zinnwaldite in the second step with the floatation foam a in the third step to obtain beneficiation rubidium concentrate. According to the beneficiation method provided by the invention, rubidium minerals occurring in mica and potassium feldspar (amazon stone) are recovered by a magnetic separation-flotation combined technology, so that the recovery rate of rubidium ores is improved; in addition, usable quartz and feldspar products are obtained, and the comprehensive utilization rate is high.

Description

technical field [0001] The invention relates to the mineral processing field, in particular to a mineral processing method for rubidium-containing feldspar ore. Background technique [0002] Rubidium is a rare resource with important strategic value. It is widely used in the fields of military industry, science and technology, and people's livelihood, and plays an important role in the national economy. In nature, rubidium is rich in mineral resources, and no independent mineral or ore body has been found yet. Rubidium is a typical dispersed element, often coexisting with minerals such as cesium, lithium, and potassium. The more common rubidium-containing associated minerals are lepidolite, iron lepidolite, potassium feldspar, carnallite, and spodumene. For some typical minerals, besides mica and potassium feldspar, rubidium also contains a small amount of rubidium in albite and quartz. [0003] At present, the extraction of rubidium is mainly through chemical extraction. ...

Claims

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Application Information

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IPC IPC(8): B03C1/30B03D1/014B03D101/06B03D101/02B03D103/04
CPCB03C1/30B03D1/014B03D2201/02B03D2201/06B03D2203/04
Inventor 邵伟华张艳娇常学勇刘广学赵平彭团儿王力
Owner ZHENGZHOU MINERALS COMPOSITIVE UTILIZATION RES INST CHINESE GEOLOGICAL ACAD
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