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Method for preparing micro precipitated barium sulfate from barium ores

A technology for precipitating barium sulfate and slag, which is applied in the direction of calcium/strontium/barium sulfate, calcium/strontium/barium halide, calcium/strontium/barium chloride, etc., which can solve the problems of huge equipment, complicated process and large investment

Inactive Publication Date: 2009-12-02
王嘉兴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This smelting method has huge equipment, complex process and large investment

Method used

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  • Method for preparing micro precipitated barium sulfate from barium ores

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Embodiment 1

[0021] Embodiment one: 800 kilograms of barium-containing slag and dilute hydrochloric acid are placed in the pickling tank (1) by the mass ratio of pure substance 1: 0.33, after 4 hours, the reaction generates 797.8 kilograms of chlorides based on barium, and suction filtration ( 2) obtain waste residue chlorine cake and chloride; Then reclaim chloride and generate various barium salts in recoverer (3) according to mass ratio 1: 0.559 with barium sulfate; After suction filtration (4), clear liquid is treated with surfactant With sulfuric acid in compounder (5) according to the pure mass ratio 1: 0.46 the number of revolutions of stirrer is 180 rev / mins, synthesizes 853.2 kilograms of precipitated barium sulfate; Washes with centrifuge (6) at last, separates, dry (7), Pulverize (8) etc. and become precipitated barium sulfate product. The series products of fine precipitated barium sulfate include: fine powder precipitated barium sulfate accounted for 52%, 433.66 kg; superfine ...

Embodiment 2

[0022] Embodiment two: the barium slag of 800 kilograms is reacted with hydrochloric acid according to mass ratio 1: 0.13, after 6 hours, generate 341.92 kilograms of chlorides based on barium, and suction filter to obtain waste residue filter cake and barium chloride; After the barium oxide is treated with a surfactant, it is 60 rpm with sulfuric acid according to the mass ratio of 1:0.26. The number of revolutions of the stirrer is 60 rpm to synthesize 210.08 kilograms of precipitated barium sulfate. The series products of fine precipitated barium sulfate include: fine powder precipitated barium sulfate accounted for 52%, 109.24 kg; superfine powder precipitated barium sulfate accounted for 36%, 75.62 kg;

Embodiment 3

[0023] Embodiment three: 800 kilograms of barium slag and hydrochloric acid are reacted according to mass ratio 1: 0.53, after 8 hours, generate 844.68 kilograms of chlorides based on barium, and suction filter to obtain waste residue filter cake and barium chloride; After the barium oxide is treated with a surfactant, it is 300 rpm with sulfuric acid according to the mass ratio of 1:0.66. The number of revolutions of the stirrer is 300 rpm, and the synthesis generates 905.6 kilograms of precipitated barium sulfate. The series products of fine precipitated barium sulfate include: fine powder precipitated barium sulfate accounted for 52%, 470.91 kg; superfine powder precipitated barium sulfate accounted for 36%, 326.00 kg;

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Abstract

The invention discloses a method for preparing serial products of micro precipitated barium sulfate from barium slag. The main technical proposal comprises the following steps of: reacting the barium slag and hydrochloric acid to obtain chloride mainly containing barium salt; performing vacuum filtration on clear liquid; reacting the clear liquid and little amount of barium sulfate; recovering chlorine ions to obtain completely reacted barium chloride; and finally reacting the barium chloride and sulfuric acid to obtain the micro precipitated barium sulfate in all levels. The method can create much higher economic value, and can remove waste ores; moreover, the method can process the micro precipitated barium sulfate in all levels.

Description

Technical field: [0001] The invention relates to the technical field of mineral extraction by chemical method, in particular to a method for finely precipitating barium sulfate prepared from barium ore. technical background: [0002] Since ancient times, smelting has been used to extract various substances from ores, whether it is metal or non-metal, and inorganic salts. This smelting method has huge equipment, complex process and large investment. With the development of modern science and technology, chemical extraction emerged as the times require, taking the lead and becoming the main method of chemical mineral extraction. It features simple process and equipment, low investment and high profit, and is an irreplaceable way for the current chemical ore extraction. The present invention utilizes this chemical method to extract the precipitated barium sulfate products of various finenesses exactly, comprises the extraction method of nanometer barium sulfate. Invention c...

Claims

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Application Information

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IPC IPC(8): C01F11/46C01F11/24C01B7/01
Inventor 王嘉兴
Owner 王嘉兴