Method for preparing electronic grade non-selenium manganomanganic oxide from dialogite

An electronic-grade technology of manganese tetraoxide, which is applied in the direction of manganese oxide/manganese hydroxide, etc., can solve the problems of undiscovered manganese tetroxide, high content of non-metallic impurities, and poor effect of non-metal, so as to facilitate large-scale The effect of low production and equipment investment and low production cost

Inactive Publication Date: 2009-01-21
花垣县科信新材料有限责任公司
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AI Technical Summary

Benefits of technology

This technology uses an organic solvent called dimethyl sulfoxide (DSM) instead of expensive strong acid or alkali that can dissolve metals like iron). By doing this it removes impurities from crude molybdenum trioxides without causing them to lose their properties during further processing steps such as crystallization. It also reduces energy usage compared to traditional methods while still yielding pure product containing only one elemental molecular weight. Overall, these technical improvements improve efficiency and reduce costs associated with making certain types of special materials through chemical processes.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving the quality and cost efficiency of producing electronically-quality trivalence molecules (electron spins) for use in various applications such as quantum computing or sensing technologies due to their unique properties that are difficult to achieve with other materials like calcium magnesium silicate gel.

Method used

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Examples

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Embodiment 1

[0015] Example 1: Low-grade rhodochrosite ore, containing 17.22% manganese. Grinding fineness: 85-90 mesh 85-90%, according to the liquid-solid ratio of 5:1, add sulfuric acid with a concentration of 27% by weight for leaching, leaching time is 6 hours, filter to obtain manganese sulfate solution, and the manganese leaching rate is 93% . Adjust the pH of the solution to 6.5 with a concentration of 15% ammonia by weight, filter to remove iron and aluminum, add saturated ammonium sulfide solution to remove heavy metal ions, the temperature is 60°C, and the molar concentration of ammonium sulfide is 0.1M; 2% ammonium phosphate and ammonium fluoride to remove calcium and magnesium, filter the impurity precipitate, and obtain a purified manganese sulfate solution; add 1 gram of aluminum salt for every gram of silicon dioxide in the manganese sulfate solution in the purified manganese sulfate solution, and then use industrial ammonia water Adjust the pH of the solution to 6.0, add ...

Embodiment 2

[0017] Embodiment 2: low-grade rhodochrosite ore, manganese-containing 16.82%, grinding fineness: 85-90 order 85-90%, add the sulfuric acid that weight percent concentration is 27% by liquid-solid ratio 5: 1 and carry out leaching, leaching time After 6 hours, the manganese sulfate solution was obtained by filtration, and the manganese leaching rate was 93%. Adjust the pH of the solution to 6.5 with a concentration of 15% ammonia by weight, filter to remove iron and aluminum, add saturated ammonium sulfide solution to remove heavy metal ions, the temperature is 60°C, and the molar concentration of ammonium sulfide is 0.1M; 2% ammonium phosphate and ammonium fluoride to remove calcium and magnesium, filter the impurity precipitate, and obtain a purified manganese sulfate solution; add 0.8 grams of aluminum salt per gram of silicon dioxide in the manganese sulfate solution in the purified manganese sulfate solution, and then use industrial ammonia Adjust the pH of the solution t...

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Abstract

The invention provides a method for preparing electronic-grade selenium-free trimanganese tetroxide with rhodochrosite as raw material. The method uses the rhodochrosite as the raw material; a mixture of manganese hydroxide and manganese carbonate is obtained through a manganese leaching process and an impurity removing process; through washing, dehydration, drying, roasting, vacuum cooling technical treatment and refining treatment, the electronic-grade selenium-free trimanganese tetroxide with gamma-type atoms in disorderly arrangement can be obtained. As the low-grade rhodochrosite raw material used in the method is low in price, the method is low in production cost and high in product purity, and raises the utilization ratio of manganese ore resources. Compared with a method using electrolytic manganese as the raw material to produce trimanganese tetroxide, the method of the invention reduces equipment investment, production cost and power consumption respectively by 40 percent, 40 percent and 80 percent.

Description

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Claims

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Application Information

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Owner 花垣县科信新材料有限责任公司
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