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Method for preparing beryllium hydroxide by extracting from beryllium-containing ore

A technology of beryllium hydroxide and beryllium ore, which is applied in the direction of improving process efficiency and the like, can solve the problems of prominent three wastes and low recovery rate, and achieve the effects of low production cost, high recovery rate and simple production process.

Inactive Publication Date: 2018-01-30
LONGZHOU WANHE TRADING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When this method is used to treat low-grade ore, the recovery rate is low and the three wastes are prominent.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The present embodiment provides a method for extracting and preparing beryllium hydroxide from beryllium-containing ore, which specifically includes the following steps:

[0026] Step 1: Ball mill 100kg of garnet to a particle size of 100 mesh, add 30kg of quicklime, and then roast at 1200°C for 1 hour, then pour it into water for extremely cold, dry and crush the obtained material, and obtain fine particle material;

[0027] Step 2: Add 100kg of sodium sulfate to the obtained fine particle material, then add 360kg of sulfuric acid and 30L of water, and obtain the mature material through 0.5h aging;

[0028] Step 3: add 0.5kg block rubber and 200L water to leaching for 1 hour to the matured material, filter to obtain beryllium sulfate solution after leaching, and the beryllium sulfate solution contains iron sulfate and aluminum sulfate impurities;

[0029] Step 4: Add 50kg of ammonium sulfate to the beryllium sulfate solution for evaporation and concentration, add 50kg ...

Embodiment 2

[0031] The present embodiment provides a method for extracting and preparing beryllium hydroxide from beryllium-containing ore, which specifically includes the following steps:

[0032] Step 1: Ball mill 120kg of beryl into a particle size of 100 mesh, add 35kg of quicklime, and then roast at 1250°C for 1 hour, then pour into water for extremely cold, dry and crush the obtained material, and obtain fine particle material;

[0033] Step 2: Add 120kg of sodium sulfate to the obtained fine particle material, then add 400kg of sulfuric acid and 32L of water, and obtain the mature material through 1.0h aging;

[0034] Step 3: Add 1.0kg of rubber block and 300L of water to the matured material for leaching for 1.5h, filter to obtain a beryllium sulfate solution after leaching, and the beryllium sulfate solution contains iron sulfate and aluminum sulfate impurities;

[0035] Step 4: Add 55kg of ammonium sulfate to the beryllium sulfate solution for evaporation and concentration, add ...

Embodiment 3

[0037] The present embodiment provides a method for extracting and preparing beryllium hydroxide from beryllium-containing ore, which specifically includes the following steps:

[0038] Step 1: Ball mill 150kg of beryl into a particle size of 100 mesh, add 40kg of quicklime, then roast at 1350°C for 1.5h, then pour it into water for extremely cold, dry and crush the obtained material to obtain fine particle material;

[0039] Step 2: Add 180kg of potassium sulfate to the obtained fine particle material, then add 420kg of sulfuric acid and 35L of water, and obtain the mature material through 0.5h aging;

[0040] Step 3: Add 1.0kg of rubber block and 400L of water to the mature material for leaching for 1.5h, filter to obtain beryllium sulfate solution after leaching, and the beryllium sulfate solution contains iron sulfate and aluminum sulfate impurities;

[0041] Step 4: Add 60kg of ammonium sulfate to the beryllium sulfate solution for evaporation and concentration, add 62kg ...

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PUM

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Abstract

The invention discloses a method for a method for preparing beryllium hydroxide by extracting from beryllium-containing ore. The method comprises the following steps: carrying out ball milling on rawore, adding quick lime and roasting; then pouring a mixture into water for freezing, and drying and breaking an obtained material to obtain a fine particle material; adding sulfate or aluminate into the obtained fine particle material, adding sulfuric acid and water, and curing to obtain a cured material; adding block rubber and water into the cured material, and leaching and filtering to obtain aberyllium sulfate solution, wherein the beryllium sulfate solution contains ferric sulfate impurity and aluminum sulfate impurity; adding ammonium sulfate into the beryllium sulfate solution for performing evaporation concentration; adding calcium carbonate, water and hydrogen peroxide and removing the ferric sulfate impurity; then filtering and introducing ammonia or ammonia water into the solution to obtain the beryllium hydroxide. The method disclosed by the invention has the characteristics of short flow process, simple production conditions, wide application range, high recovery rate, low production cost and the like; the difficult problem of extracting beryllium from low-grade raw ore is solved.

Description

technical field [0001] The invention belongs to the technical field of light metal smelting and resource comprehensive utilization, in particular to a method for extracting and preparing beryllium hydroxide from beryllium-containing ore. Background technique [0002] Beryllium is the least dense alkaline earth metal element, and it has attracted much attention as a strategic material in the field of science and research today. Especially in industrial applications, most of it is used in the production of beryllium copper alloy in the form of beryllium oxide, which is widely used in atomic energy, aerospace and aviation, metallurgy and other fields. [0003] At present, the main extraction processes of beryllium are sulfuric acid method and fluorination method. The sulfuric acid method is to use pre-roasting to destroy the structure and crystal form of beryllium minerals, and then use sulfuric acid to acidify the beryllium-containing minerals, so that acid-soluble metals suc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B3/08C22B3/44C22B26/20
CPCY02P10/20
Inventor 欧阳晓平毛评生鲍瑞毛亮程
Owner LONGZHOU WANHE TRADING CO LTD
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