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Modeling method of large industrial sieve plate uranyl nitrate reverse extraction column

A uranyl nitrate stripping, large-scale industrial technology, applied in the field of modeling of large-scale industrial-grade uranyl nitrate stripping columns, can solve the problems of no uranyl nitrate stripping column simulation system, large errors, etc. , to achieve the effect of many controllable variables, high accuracy and high software precision

Pending Publication Date: 2022-06-21
THE 404 COMPANY LIMITED CHINA NAT NUCLEAR
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Problems solved by technology

At present, in the field of uranium purification and transformation, there is no simulation system for large-scale industrial-grade uranyl nitrate stripping column
At the same time, the modeling calculation results of extraction columns in other fields have large errors from the actual operation results.

Method used

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  • Modeling method of large industrial sieve plate uranyl nitrate reverse extraction column
  • Modeling method of large industrial sieve plate uranyl nitrate reverse extraction column
  • Modeling method of large industrial sieve plate uranyl nitrate reverse extraction column

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Detailed ways

[0036] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] like figure 1 Shown, the steps of the present invention are as follows:

[0038] The first step: input the parameters of the pulse sieve plate stripping column, and divide it into process operation parameters and structural parameters according to the input parameters. Among them, the process operation parameters refer to the parameters that can be changed during the system design process and can realize the process operation control, including the flow rate, concentration and acidity of the water phase inlet of the pulse sieve plate stripping column, the material concentration and flow rate of the organic phase inlet, etc. Structural parameters refer to the parameters related to the physical structure of the pulse sieve strip strip column, including the opening ratio of the pulse sieve strip strip column sieve plate, ...

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Abstract

The invention belongs to the technical field of uranium purification and conversion, and particularly relates to a modeling method of a large industrial sieve plate uranyl nitrate reverse extraction column. Inputting parameters of the pulse sieve plate reverse extraction column, wherein the parameters comprise process operation parameters and structure parameters; the method comprises the following steps: establishing a thermodynamic model of a uranyl nitrate reverse extraction process, establishing a pulsed sieve plate reverse extraction column hydraulic model, combining the thermodynamic model of the uranyl nitrate reverse extraction process with the pulsed sieve plate reverse extraction column hydraulic model, and solving by utilizing a Junge-Kutta method; calculating uranyl nitrate concentration results at water phase and organic phase outlets of the pulsed sieve plate reverse extraction column under the precondition of introducing technological operation parameters and structural parameters of the pulsed sieve plate reverse extraction column; and the calculation result is verified, the final calculation result is obtained for the output meeting the requirement, and the calculation is carried out again for the return which does not meet the requirement. The method is suitable for simulation of the pulsed sieve plate reverse extraction column in the natural uranium reverse extraction process, the method is high in accuracy, and simulation data is within the error range of 8% of actual data.

Description

technical field [0001] The invention belongs to the technical field of uranium purification and conversion, and in particular relates to a modeling method for a large-scale industrial-grade uranyl nitrate stripping column with a sieve plate. Background technique [0002] Solvent extraction is an important chemical separation technology, which is widely used in the fields of hydrometallurgy, atomic energy chemical industry, petrochemical industry and pharmaceutical separation. Solvent extraction equipment includes mixing and settling tanks, extraction columns, centrifugal extractors, etc. The extraction column has the advantages of good sealing, small footprint, and large processing capacity, and is an important extraction reactor. [0003] In the process of uranium purification and conversion, the extraction and purification of natural uranium is an important process. At present, the stripping process in the process of extraction and purification of natural uranium uses a l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G16C10/00G16C20/10
CPCG16C10/00G16C20/10
Inventor 王健侯彦龙李贺成魏刚王勇蒙金红陈登科茹发全马振荣马治军
Owner THE 404 COMPANY LIMITED CHINA NAT NUCLEAR
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