Separation method of boron, magnesium and iron in paigeite

A separation method and boronite technology, which is applied in the field of separation of boron and iron from magnesium and boronite, can solve problems that cannot be solved and are difficult to realize industrial production, and achieve low production cost, low equipment investment, and short process Effect

Inactive Publication Date: 2006-06-14
大连市中山区鑫阳矿业化工研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the existence of the above-mentioned patented technology, the same problem cannot be solved and it is difficult to realize industrialized production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] Take B 2 o 3 11.2%, MgO 35.6%, Fe 9.75% boron iron ore powder 100kg, particle size is to pass 100 mesh sieves, add in the reactor with stirring device, add 50kg water, add 90kg concentration under stirring and be 93% sulfuric acid, React for 5-10 minutes. During this period, the temperature of the reaction material is automatically raised, and the reaction is relatively slow at the beginning. With the increase of the reaction temperature, the reaction speed is continuously accelerated, and the temperature is higher as the reaction speed increases, up to 160 ° C. During this period, the water in the material is continuously evaporated. After the reaction is completed, the materials are unloaded and stacked to cool down. As the temperature decreases, the material begins to solidify, and when the temperature drops to room temperature, the material becomes powdery, and 210 kg of powder is obtained, the pH is 2.01, and the water content is 15%. After analysis and testing...

example 2

[0020] Take B 2 o 3 12.19%, MgO 28.5%, Fe 18.0% boronite powder 100kg (100 mesh), add in the reaction device with agitation, add the sulfuric acid solution 63.4Kg that concentration is 74.4% under stirring, react 8min, after the completion of the reaction, the material is unloaded Lower the stack to cool down. 166Kg of solid material was obtained, and the pH was 3.24. The material contains all B 2 o 3 6.97%, water soluble B 2 o 3 4.37%; full MgO 18.8%, citrate dissolved MgO 12.94%; Fe 9.50%, H 2 O 9.8%.

[0021] Gained solid powder is added in the separator that boron magnesium saturated liquid is housed, separates and obtains boric acid 12.4kg with example 1 same method, magnesium sulfate monohydrate 93.70kg and iron concentrate powder 15.80kg.

example 3

[0023] Get 100 mesh boronite powder (containing B 2 o 3 11.40%, MgO 35.70%, Fe9.75%) 100kg and 50kg water are added in the reactor that has agitator, add concentration and be 97kg of sulfuric acid of 93%, react 5~10min, unloading pile up and cool down to obtain solid reaction material 210kg, pH 3.0, water content 15%, total MgO 16.76%, citrate dissolved MgO 13.57%; total B 2 o 3 4.71%, water soluble B 2 o 3 4.66%, Fe 4.23%. Gained solid powder is added in the separator that boron magnesium saturated liquid is housed, separates and obtains boric acid 16.59kg with example 1 same method, magnesium sulfate monohydrate 106.1kg and iron concentrate powder 8.9kg.

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Abstract

The invention relates to a method of separating boron, magnesium, and iron from ferroludwigite. Ludwigite powder is reacted by stirring in the 54%-80% inorganic acid for 5-10min. the reactant pH values is controlled between 1.50 and 4.50. Its temperature is automatically rose to reach 160centigrade degree by reaction. The produced water is constantly steamed to make the inorganic acid keep high density. While finishing the react the reactant is cooled to room temperature to form powder. And its water content is less than 20%. The solid material is put into boron iron saturated solution to separate iron and acid insoluble substance. The iron fine powder is gained by magnetic separation. Boric acid is separated from mono water magnesium sulfate by its floatation characteristic in saturated solution. Then they are respectively filtered to gain.

Description

technical field [0001] The invention relates to the separation technology of boron, magnesium and iron in boron-iron ore. Background technique [0002] my country's boron ore resources are rich due to the Wengquangou boron-magnesianite mine in eastern Liaodong. At present, my country's boron raw material industry mainly uses boron-magnesium ore as raw material. Due to its simple structure and easy processing, after decades of mining, the reserves of boron-magnesium ore have been greatly reduced. With the development of industry, boron-magnesium ore can no longer satisfy the boron market. demand. Liaoning boron ore reserves B 2 o 3 More than 20 million tons, more than 280 million tons of iron, and more than 75 million tons of MgO. Liaoning boronite is boron magnesium magnetite ore, T Fe ~30%, although the grade of iron ore in Northeast China is similar, but the iron reserves in the mining area only account for about 1% of the total iron in the country, and the ore contain...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B3/06C22B3/22
CPCY02P10/20
Inventor 张有俊胡月阳
Owner 大连市中山区鑫阳矿业化工研究所
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