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New uranium mining method-plant uranium mining method

A mining method and uranium ore technology, applied in concentrated fields, can solve the problems of inability to develop and utilize, low uranium grade, etc., and achieve the effects of slowing down the greenhouse effect, beautifying the visual environment, and speeding up the ecological cycle

Active Publication Date: 2010-03-17
NANHUA UNIV +1
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the common feature of these uranium-containing substrates is that the uranium grade is very low, and it cannot be developed and utilized by the traditional method of uranium mining in my country, which requires us to propose a new uranium mining method

Method used

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specific Embodiment approach

[0048] A uranium enrichment plant that uses large biomass to enrich uranium from uranium tailings piled on the surface to the aboveground part of the plant. A method of incineration to form uranium-containing bioores. The specific steps are:

[0049] (1) Investigate, collect and analyze the uranium content of the dominant plants growing in the uranium tailings pool, screen the enrichment plants with high biomass uranium, and collect the seeds.

[0050] (2) Preserve the seeds, recover the seeds in the spring of the coming year, and first use HgCl 2 Disinfect for about 5 minutes, then wash with tap water, and finally germinate the seeds.

[0051] (3) Adopt the sand culture method to grow seedlings, deposit 30 seeds in every petri dish, and the whole test is carried out in an artificial climate room with a constant temperature of 28° C., a relative humidity of 80%, a light length of 14 hours, and an illumination intensity of 1500 lx.

[0052] (4) When the seedlings grow to a c...

Embodiment 1

[0058] Embodiment 1, water sedge seeds are treated with HgCl 2 Treat for about 5 minutes, then rinse with tap water, use the sand culture method to grow seedlings, and when the seedling age reaches 10 days, transplant the seedlings to a uranium tailings bank, manage carefully, fertilize reasonably, and harvest the aboveground parts after 100-120 days. Air-dried at room temperature, crushed, put into a high-temperature furnace at 600°C for incineration, and collected residual ash, that is, bio-ore containing uranium. After analysis and determination, the grade of bio-ore containing uranium was 0.15%.

Embodiment 2

[0059] Embodiment 2, oat seeds are treated with HgCl 2 Treat for about 5 minutes, then rinse with tap water, use the sand culture method to grow seedlings, and when the seedling age reaches 15 days, transplant the seedlings to a uranium tailings bank, manage carefully, fertilize reasonably, and harvest the aboveground parts after 100-120 days. Air-dried at room temperature, crushed, put into a high-temperature furnace at 600°C for incineration, and collected residual ash, that is, uranium-containing bio-ore. After analysis and determination, the grade of uranium-containing bio-ore was 0.045%.

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Abstract

The invention relates to a plant uranium mining method, which is a method achieved as follows: high-biomass uranium-enriched plants are used for enriching uranium in uranium tailings, tailing residues, uranium waste rock, low-grade uranium mine, and uranium-mineralized soil which are stacked on the ground surface to the overground parts of the plants, the uranium is intensively harvested and driedafter being enriched to a certain extent, and then uranium-containing biologic minerals are formed after the uranium is incinerated at high temperature. The method comprises the following concrete steps: (1) screening the high-biomass uranium-enriched plants; (2) sterilizing seeds; (3) potting, transplanting seeding to uranium-containing substrates; (4) intensively harvesting and drying the uranium after the uranium is enriched to a certain extent in plant bodies; and (5) incinerating the harvested plant bodies at high temperature, wherein ash component generated by incineration are the uranium-containing biologic minerals. The invention has the advantages of convenient material obtainment, low cost, simple processing step, favorable environment, energy saving, no destruction and the like.

Description

technical field [0001] The invention relates to a green and environment-friendly uranium mining method, which is a kind of uranium tailings, tailings slag, uranium waste rock, low-grade uranium ore and uranium mineralized soil stacked on the surface by using a large biomass uranium enrichment plant The uranium in the plant is enriched to the aboveground part of the plant. After the enrichment is carried out to a certain extent, it is harvested intensively, dried, and then incinerated at high temperature to form uranium-containing bio-ore. Background technique [0002] Nuclear fuel is the foundation of the nuclear industry, and insufficient supply of nuclear fuel often becomes a bottleneck restricting the scale of the nuclear industry. Uranium and its compounds are indispensable and important raw materials in nuclear fuel, and the shortage of uranium resources is becoming a potential factor restricting the development of nuclear power in my country. According to the calculat...

Claims

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Application Information

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IPC IPC(8): E21C41/26
Inventor 丁德馨李广悦胡南刘玉龙王永东刘洋马少维
Owner NANHUA UNIV
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