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Process for reducing fluorine in biuranate product

A diuranate and fluoride reduction technology, which is applied in the fields of uranium compounds, inorganic chemistry, chemical instruments and methods, etc., can solve the problems of purification treatment, increased treatment cost, and excessive fluorine content.

Inactive Publication Date: 2010-09-29
NANHUA UNIV +1
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Problems solved by technology

[0005] Aiming at the problem that the fluorine content of "111" products produced by many uranium ore production enterprises exceeds the standard in recent years, which will affect the subsequent purification treatment and increase the treatment cost, this research is carried out

Method used

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  • Process for reducing fluorine in biuranate product
  • Process for reducing fluorine in biuranate product

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Embodiment Construction

[0010] The specific implementation of defluorination technology for diuranate products is as follows:

[0011] The original "111" product fluorine content exceeds the standard uranium production enterprises, after applying this invention, the problem of "111" product fluorine content exceeding the standard has never occurred. In addition, the present invention can also be applied to the reprocessing of "111" products whose fluorine content exceeds the standard, and has also been verified through production practice. This invention has been applied to the production practice of many uranium mine enterprises with excessive fluorine content in the original "111" products. After more than two years of production and application, it has been shown that this invention is easy to operate, low in fluorine removal cost, and good in fluorine removal effect. The fluorine content of all "111" products has reached the national standard of less than 0.2%.

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Abstract

The invention relates to a process for reducing fluorine in a biuranate product. The process comprises the following technical steps of: precipitating qualified liquid; analyzing the ratio of the percentage composition of fluorine (F) to that of uranium (U) in slurry by an analysis method; when the F / U ratio is more than 1 / 300, performing fluorine reducing treatment on the slurry; adding a fluorine-removing agent with a certain concentration into the treated slurry; washing the mixture with clear water; and separating solid from liquid. The process has the advantages of simple operation, low fluorine removing cost and good fluorine removing effect.

Description

technical field [0001] Aiming at the problem of excessive fluorine content in "111" products, this research studies the removal technology of fluorine in "111" products. Background technique [0002] Fluoride is symbiotic with uranium ore, and part of the fluorine will be transferred to the solution during the processing of uranium ore. On the one hand, it will cause environmental pollution of fluorine and bring harm to people's health; If the content exceeds the standard, the post-treatment process such as purification is complicated, and the treatment cost increases. With the implementation of the strategic policy of "actively developing nuclear power" in my country, the production scale of uranium ore production enterprises will continue to expand. The fluorine environmental pollution caused by the processing of uranium ore and the excessive fluorine content of "111" products have become increasingly prominent. [0003] The primary products produced by my country's uran...

Claims

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Application Information

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IPC IPC(8): C01G43/00
Inventor 王清良丁德馨胡鄂明陈祥标朱曙光冯海生谭建华于素芹黄云柏黄齐金
Owner NANHUA UNIV
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