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A collector for flotation of uranyl carbonate ions and its application

A technology of uranyl carbonate ion and collector, which is applied in the field of enrichment of uranyl carbonate ion, can solve the problems of easily polluting the water phase, small processing capacity, and complicated process flow, so as to reduce production cost, improve hydrophobicity, reduce The effect of using

Active Publication Date: 2022-05-27
NANHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the traditional uranium hydrometallurgy system, the ion exchange and extraction process is adopted, the process flow is relatively complicated, the processing capacity is small, the investment is large, and the energy consumption is high. The organic phase of the extraction process is easy to pollute the water phase, which is not conducive to recycling
The use of alkyl phosphate ion flotation to enrich and separate uranyl carbonate ions is a new process, but only using alkyl phosphate ions as collectors requires a large amount, and the application and industry are costly, which has been restricted. industrial applications

Method used

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  • A collector for flotation of uranyl carbonate ions and its application
  • A collector for flotation of uranyl carbonate ions and its application
  • A collector for flotation of uranyl carbonate ions and its application

Examples

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Effect test

Embodiment 1

[0028] A collector for flotation of uranyl carbonate ions is composed of sodium dodecyl phosphate solution and PEG2000, wherein the amount of PEG2000 is 0.5% of the dodecyl phosphate ion.

[0029] A method for flotation of uranyl carbonate ions with above-mentioned collector, comprising the following steps:

[0030] S1: prepare sodium dodecyl phosphate solution;

[0031] S2: Add the solution with uranyl carbonate ion concentration of 300mg / L into the laboratory 1.5L hanging tank flotation machine, add the sodium dodecyl phosphate solution prepared by S1 and PEG2000 in proportion, stir for 10min, and then ventilate Flotation was carried out for 20 min, and the ventilation rate was 20 L / min to obtain foam water and tail water; among them, the molar ratio of dodecyl phosphate ion and uranyl carbonate ion was 4:1.

Embodiment 2-7

[0033] The method of Example 1 is used for flotation of uranyl carbonate ions. The difference between Examples 2-7 and Example 1 is that in S2, the concentration of dodecyl phosphate ions is different from the molar ratio of uranyl carbonate ions. shown in Table 1.

[0034] The molar ratio of table 1 embodiment 2-7 dodecyl phosphate ion and uranyl carbonate ion

[0035]

[0036] The foam water and tail water obtained in Examples 1-7 were tested for the concentration of uranyl carbonate ions, and the test results are shown in Table 2.

[0037] The test result of the uranyl carbonate ion concentration in table 2 embodiment 1-7 foam water and tail water

[0038]

Embodiment 8

[0040] A collector for flotation of uranyl carbonate ions is composed of sodium dodecyl phosphate and PEG2000, wherein the amount of PEG2000 is 1% of the dodecyl phosphate ion.

[0041] A method for flotation of uranyl carbonate ions with above-mentioned collector, comprising the following steps:

[0042] S1: prepare a sodium dodecyl phosphate solution with a concentration of 20%;

[0043] S2: Add the solution with uranyl carbonate ion concentration of 300mg / L into the laboratory 1.5L hanging tank flotation machine, add the sodium dodecyl phosphate solution prepared in S1 and PEG2000 in proportion, stir for 10min, and then ventilate for 20min Carry out flotation, and the ventilation rate is 20L / min to obtain foam water and tail water; wherein, the molar ratio of dodecyl phosphate ion and uranyl carbonate ion is 4:1.

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Abstract

The invention provides a collector for flotation of uranyl carbonate ions, which is composed of alkyl phosphate and / or alkyl phosphate salt mixed with polyethylene glycol. The invention adds polyethylene glycol to the alkyl phosphate salt solution. Diol can promote the dispersion of alkyl phosphate ions in the solution. At the same time, some polyethylene glycol molecules are co-adsorbed on uranyl carbonate ions to participate in the formation of complexes, thereby improving hydrophobicity and reducing alkyl phosphate or alkane. The use of base phosphate ester salt; The present invention also provides a method for flotation of uranyl carbonate ions with the above-mentioned collector, including the step of adding the collector to the uranyl carbonate ion solution for flotation.

Description

technical field [0001] The invention relates to the relevant technical field of uranyl carbonate ion enrichment, in particular to a collector for flotation of uranyl carbonate ions and a method for flotation of uranyl carbonate ions. Background technique [0002] In the traditional uranium hydrometallurgy system, the ion exchange and extraction process are used, the process flow is relatively complex, the processing capacity is small, the investment is large, and the energy consumption is high. The organic phase of the extraction process is easy to pollute the water phase, which is not conducive to recycling. The use of alkyl phosphate ion flotation to enrich and separate uranyl carbonate ions is a new process, but only using alkyl phosphate ions as collectors requires a large amount. its industrial application. SUMMARY OF THE INVENTION [0003] In view of the above-mentioned technical problems existing in the prior art, the present invention provides a collector for flot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/016B03D1/014B03D1/02B03D101/02
CPCB03D1/016B03D1/014B03D1/02B03D2201/02
Inventor 刘三军王清良胡鄂明史文革刘建东胡凯光李会娟雷治武熊畅武志超芮钰哲
Owner NANHUA UNIV