Test device and test method for pressurized column leaching of uranium ore by CO2+O2

A test method and test device technology, applied in the field of uranium mining and smelting, can solve problems such as difficult to obtain satisfactory results, unstable operation, complex structure, etc., and achieve a wide range of applicable pressures, strong leaching regularity, and stable leaching process. Effect

Active Publication Date: 2018-03-20
NANHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing indoor pressurized leaching column leaching test device has complex structure, difficult to control parameters, unstable operation, and it is not easy to obtain satisfactory results

Method used

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  • Test device and test method for pressurized column leaching of uranium ore by CO2+O2
  • Test device and test method for pressurized column leaching of uranium ore by CO2+O2
  • Test device and test method for pressurized column leaching of uranium ore by CO2+O2

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Embodiment Construction

[0025] Using CO 2 +O 2 Test device for pressurized column leaching of uranium ore, including liquid storage tank 1, leaching column 2, first ball valve 3, second ball valve 4, third ball valve 5, fourth ball valve 6, fifth ball valve 7, sixth ball valve 8 , The seventh ball valve 9, the first pressure gauge 10, the second pressure gauge 11, the pressure reducer 12 and the right-angle ball valve 13.

[0026] The liquid storage tank 1 is a cylindrical barrel with both ends closed, and the upper end plate of the liquid storage tank 1 is provided with water inlet pipe joints 1-1, O 2 Intake pipe 1-2, CO 2 Intake pipe 1-3 and first pressure gauge connector 1-4, one end of the third ball valve 5 is installed on the first pressure gauge connector 1-4, the first pressure gauge 10 is installed on the other end of the third ball valve 5, the fourth The ball valve 6 is installed on the water inlet pipe joint 1-1, and the first ball valve 3 and the second ball valve 4 are respectively ...

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Abstract

The invention discloses a testing device and testing method for pressurized column leaching of uranium ore by means of CO2 and O2. The testing device comprises a liquid storage tank and a leaching column. A water inlet pipe connector, an O2 inlet pipe, a CO2 inlet pipe and a first pressure gauge connector are arranged on an upper end plate of the liquid storage tank, wherein the water inlet pipe connector, the O2 inlet pipe, the CO2 inlet pipe and the first pressure gauge connector are provided with ball valves. A first pressure gauge is installed on the ball valve of the pressure gauge connector. A liquid outlet pipe connector is arranged at the lower end of the cylinder wall of the liquid storage tank. The leaching column comprises a cylinder and an end cover. The end cover is connected with the cylinder through bolts. A liquid inlet pipe connector and a second pressure gauge connector which are provided with ball valves are arranged on the end cover. The ball valve on the liquid inlet pipe connector is connected with a liquid outlet connector on the liquid storage tank through a pipeline. A second pressure gauge is installed on the ball valve of the second pressure gauge connector. A right-angled ball valve, a pressure reducer and the ball valves are sequentially connected with the liquid outlet pipe connector of the leaching column. During testing, the liquid storage tank is fixed to an oscillator, a CO2 steel cylinder and an O2 steel cylinder are connected with the liquid storage tank, a uranium ore sample is placed into the leaching column, a leaching solution is prepared, and the uranium ore sample is leached through the leaching solution.

Description

technical field [0001] The invention relates to the technical field of uranium mining and smelting, in particular to a 2 +O 2 Test device and test method for pressure column leaching of uranium ore. Background technique [0002] The natural uranium production process in the uranium mining and metallurgy system includes four categories: in-situ leaching, heap leaching, conventional stirring leaching and in-situ blasting leaching. Among them, in-situ leaching uranium mining technology has become an important method for uranium mining and smelting. CO in in-situ leaching uranium mining technology 2 +O 2 After years of experimental research, the leaching process has achieved major breakthroughs and is recognized as a representative achievement of today's green mining technology. Currently, CO 2 +O 2 The leaching process has been widely used in sandstone in-situ leaching uranium mines, but a large number of indoor stirring leaching tests, indoor pressure column leaching tes...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B60/02C22B3/02C22B3/04
CPCC22B3/02C22B3/04C22B60/0221
Inventor 王清良胡鄂明冯志刚李会娟刘率帅许娜
Owner NANHUA UNIV
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