Device for detecting uranium concentration in adsorbed tail liquid on line by adopting colorimetric method

A technology of colorimetry and tail liquid, applied in color/spectral characteristic measurement, analysis through chemical reaction of materials, material analysis through observation of the impact on chemical indicators, etc., can solve resource waste and manual analysis errors Large, slow speed and other problems, to achieve the effect of reducing labor intensity and improving work efficiency

Inactive Publication Date: 2017-08-18
BEIJING RES INST OF CHEM ENG & METALLURGY
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  • Abstract
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Problems solved by technology

For the above method, the steps are cumbersome, the types of reagents required are many, and the analysis speed is slow, so it is not suitable for rapid detection on the spot.
And for the determination of uranium concentration less than 5 mg per liter in the adsorption tail liquid, the titration volume is small with ammonium vanadate titration method, which is prone to errors, and the sensitivity is difficult to meet the needs of on-site analysis
Due to the large error and slow speed of manual analysis, the concentration of uranium in the adsorption tail liquid often exceeds the standard, which causes a great waste of resources and a great burden on subsequent environmental protection treatment. At the same time, manual analysis cannot realize the automatic production process. The realization of control, aiming at the status quo of the nuclear industry system, the development of an online analysis instrument that can quickly and accurately analyze the concentration of uranium in the adsorption tail liquid has very important practical significance for guiding industrial production

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  • Device for detecting uranium concentration in adsorbed tail liquid on line by adopting colorimetric method
  • Device for detecting uranium concentration in adsorbed tail liquid on line by adopting colorimetric method

Examples

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Example Embodiment

[0024] Example 1

[0025] Such as Figure 1 to Figure 2 As shown, the device of the present invention for online detection of uranium concentration in adsorption tail liquid using colorimetric method includes a chemical flow path system and a control system;

[0026] The chemical flow path system includes a reactor, and a pipeline for injecting the adsorption tail liquid into the reactor, a pipeline for injecting a buffer, a pipeline for injecting a color developer, and a pipeline for injecting cleaning water into the reactor. All are equipped with solenoid valves, and the pipelines are all connected with a peristaltic pump; the chemical flow path also includes a photometric detector for measuring the absorbance of the solution in the reactor.

[0027] The control system includes a computer system, which is connected to a power supply and a liquid crystal display; the computer system is connected to control the peristaltic pump, solenoid valve and photometric detector of the chemical f

Example Embodiment

[0029] Example 2

[0030] In the ion exchange process of a domestic hydrometallurgical plant, such as Figure 1 to Figure 2 As shown, the device for online detection of the concentration of uranium in the adsorption tail liquid using the colorimetric method of the present invention includes a chemical flow path system and a control system;

[0031] The chemical flow path system includes a reactor, and a pipeline for injecting the adsorption tail liquid into the reactor, a pipeline for injecting a buffer, a pipeline for injecting a color developing agent, and a pipeline for injecting cleaning water, in each pipeline All are equipped with solenoid valves, and the pipelines are all connected with a peristaltic pump; the chemical flow path also includes a photometric detector for measuring the absorbance of the solution in the reactor. An overflow cup is set on the pipeline for injecting the adsorption tail liquid into the reactor. After the adsorption tail liquid enters the overflow cup

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Abstract

The invention provides a device for detecting uranium concentration in adsorbed tail liquid on line by adopting a colorimetric method. The device comprises a chemical flow path system and a control system, wherein the chemical flow path system comprises a reactor; an adsorbing tail liquid injecting pipeline, a buffer agent injecting pipeline, a developer injecting pipeline and a clean water injecting pipeline are arranged in the reactor; solenoid valves are arranged on the pipelines; the pipelines are connected with a peristaltic pump; the chemical flow path further comprises a luminosity detector for detecting absorbance of a solution in the reactor; the control system comprises a computer system; the computer system is connected with a power supply and a liquid crystal display; the computer system is connected with and is used for controlling the peristaltic pump for controlling the chemical flow path system, the solenoid valves and the luminosity detector to start or stop. The device provided by the invention can quickly and accurately measure the uranium concentration in the adsorbed tail liquid in a uranium measuring process, can realize online automatic measurement and can supply preconditions to an automatic control system of the production process.

Description

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Claims

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Application Information

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Owner BEIJING RES INST OF CHEM ENG & METALLURGY
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