CN102115820A - Method for separating uranium and titanium from organic phase through stepwise back extraction - Google Patents
Method for separating uranium and titanium from organic phase through stepwise back extraction Download PDFInfo
- Publication number
- CN102115820A CN102115820A CN201010603415XA CN201010603415A CN102115820A CN 102115820 A CN102115820 A CN 102115820A CN 201010603415X A CN201010603415X A CN 201010603415XA CN 201010603415 A CN201010603415 A CN 201010603415A CN 102115820 A CN102115820 A CN 102115820A
- Authority
- CN
- China
- Prior art keywords
- organic phase
- titanium
- uranium
- stripped
- hydrogen peroxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention provides a method for separating uranium and titanium from organic phase through stepwise back extraction. The method comprises the following steps of: firstly, adopting aqueous hydrogen peroxide solutions as a back-extractant, carrying out primary back extraction on the uranium and titanium-bearing organic phase, and forming aqueous titanium through back extraction, wherein the volume ratio of hydrogen peroxide to the organic phase is 1: (10-100), and the mole ratio of the hydrogen peroxide to the titanium in the organic phase is (10-50): 1; and secondly, adopting sodium carbonate or sal volatile as the back-extractants, carrying out primary back extraction on the organic phase obtained in the first step, and forming aqueous uranium through back extraction, wherein the volume ratio of the organic phase to the sodium carbonate or the sal volatile is (1.0-5):1, and the mole ratio of the sodium carbonate or the ammonium carbonate to the uranium in the organic phase is (8-20): 1. The method respectively enriches two elements, i.e. uranium and titanium in different back extraction solutions, thereby effectively separating uranium and titanium from the organic phase.
Description
Technical field
The present invention relates to the uranium extraction purification technique, be specifically related to a kind of substep and strip and separate the method for uranium and titanium in the organic phase.
Background technology
In uranium hydrometallurgy production process, solvent extraction purifying uranium is to use comparatively general technology, contains uranium and other impurity element in the solution, makes uranium obtain enrichment in organic phase by extraction, and impurity element still is deposited in the raffinate aqueous phase, thereby uranium is effectively separated with impurity element.But for some specific extraction system, some impurity element can obtain enrichment simultaneously with uranium in organic phase, thereby reduces the separating effect of uranium and this impurity element.Titanium just belongs to such impurity element, in the eluex process of classics, uranium and titanium can together be extracted in the organic phase with cationic form, as the uranium in the organic phase effectively not being separated with titanium, titanium will enter in the final uranium product, cause in the product titanium content to surpass 200mg/kg (uranium base), can not satisfy in the GB10269-88 standard in the uranium concentrate to the limitation standard of impurity element titanium.
To the organic phase of while load uranium, titanium, existing production upward adopts two kinds of methods to handle.The one, adopt water reextraction titanium earlier, then with yellow soda ash or sal volatile reextraction uranium; The 2nd, without water reextraction titanium, directly adopt yellow soda ash or sal volatile reextraction uranium.
There is very big drawback in above-mentioned two kinds of processing modes to load uranium, titanium organic phase.At first, adopting water reextraction titanium, again in the technology with yellow soda ash reextraction uranium, water is extremely low to the reextraction efficient of titanium in the organic phase and uranium, uranium in the organic phase is the same with direct yellow soda ash stripping process with titanium, all enrichments in the yellow soda ash anti-stripping agent, and finally enter product, uranium is not accomplished effectively with titanium and is separated.
Summary of the invention
The object of the present invention is to provide a kind of can be with the respectively enrichment in different anti-stripping agents of titanium, uranium two elements, effective isolating substep is stripped and is separated the method for uranium titanium in the organic phase.
Realize the technical scheme of the object of the invention: a kind of substep is stripped and is separated the method for uranium titanium in the organic phase, and this method comprises the steps:
(1) with the aqueous hydrogen peroxide solution is strippant, the organic phase of load uranium titanium carried out the first time strip, titanium is stripped to water; Wherein, the volume of hydrogen peroxide and the volume ratio of organic phase are 1: the ratio of the mole number of titanium is (10～50) in (10～100), the mole number of hydrogen peroxide and organic phase: 1;
(2) be strippant with yellow soda ash or sal volatile again, the organic phase of step (1) gained is stripped, uranium is stripped to water; Wherein, organic phase and yellow soda ash or sal volatile volume ratio are (1.0～5): 1, and the ratio of the mole number of uranium is (8～20) in the mole number of yellow soda ash or volatile salt and the organic phase: 1.
Aforesaid a kind of substep is stripped and is separated the method for uranium titanium in the organic phase, 1 grade of the described reextraction progression of its step (1).
Aforesaid a kind of substep is stripped and is separated the method for uranium titanium in the organic phase, and the described reextraction progression of its step (1) is 2～4 grades.
Aforesaid a kind of substep is stripped and is separated the method for uranium titanium in the organic phase, 1 grade of the described reextraction progression of its step (2).
Aforesaid a kind of substep is stripped and is separated the method for uranium titanium in the organic phase, 2～4 grades of the described reextraction progression of its step (2).
Effect of the present invention is:
The present invention adopts substep anti-extraction process technology, at first is strippant with the aqueous hydrogen peroxide solution, the organic phase of load uranium titanium is carried out the first time strip, and titanium is stripped to water; And then be strippant with yellow soda ash or volatile salt, the uranium-bearing organic phase is stripped, uranium is stripped to water.Enforcement by this technology, can be with the enrichment respectively in different anti-stripping agents of titanium, uranium two elements, accomplish effective separation, titanium wherein＞95% and the enrichment in the hydrogen peroxide anti-stripping agent of＜2% uranium,＞98% uranium and the enrichment in the carbonate anti-stripping agent of＜5% titanium.Can avoid the low problem of titanium single stage operation stripping rate by multistage reextraction, titanium content in the finished product uranium concentrate can be stabilized in below the 200mg/L (uranium base).Concrete effect is as follows:
(1) enrichment in the first step hydrogen peroxide is stripped of the titanium in the load organic phases, in the load organic phases＞95% titanium and the enrichment in anti-stripping agent of＜2% uranium.
(2) uranium in the load organic phases obtains enrichment at the second step carbonate in stripping, in the load organic phases＜5% titanium and the enrichment in anti-stripping agent of＞98% uranium, titanium uranium was reduced to 0.08: 1000 than by 1.8: 1000;
(3) in the finished product uranium concentrate titanium content can to reduce to 200mg/kg following or lower, can satisfy in the GB10269-88 standard requirement to the impurity element titanium.
Embodiment
Below in conjunction with specific embodiment the method that a kind of substep reextraction of the present invention separates uranium titanium in the organic phase is further described.
Embodiment 1
Test 1.00L load uranium titanium organic phase, its titanium concentration is 48.0mg/L, uranium concentration is 23.6g/L.
Adopt substep of the present invention to strip and separate the method for uranium titanium in the organic phase:
(1) with the aqueous hydrogen peroxide solution is strippant, the organic phase of above-mentioned load uranium titanium carried out the first time strip, titanium is stripped to water 4 grades of reextraction progression.Wherein, the volume of hydrogen peroxide and the volume ratio of organic phase are 1: 100, and the ratio of the mole number of titanium is 100: 1 in the mole number of hydrogen peroxide and the organic phase;
(2) with the sodium carbonate solution be strippant again, the organic phase of step (1) gained is stripped, uranium is stripped to water 2 grades of reextraction progression.Wherein, organic phase and sodium carbonate solution volume ratio are 1.0: 1, and the ratio of the mole number of uranium is 20: 1 in the mole number of yellow soda ash and the organic phase.
Embodiment 2
Test 1.00L load uranium titanium organic phase, its titanium concentration is 48.0mg/L, uranium concentration is 11.8g/L.
Adopt substep of the present invention to strip and separate the method for uranium titanium in the organic phase:
(1) with the aqueous hydrogen peroxide solution is strippant, the organic phase of above-mentioned load uranium titanium carried out the first time strip, titanium is stripped to water 2 grades of reextraction progression.Wherein, the volume of hydrogen peroxide and the volume ratio of organic phase are 1: 50, and the ratio of the mole number of titanium is 12: 1 in the mole number of hydrogen peroxide and the organic phase;
(2) with the sodium carbonate solution be strippant again, the organic phase of step (1) gained is stripped, uranium is stripped to water 4 grades of reextraction progression.Wherein, organic phase and sodium carbonate solution volume ratio are 2: 1, and the ratio of the mole number of uranium is 8: 1 in the mole number of yellow soda ash and the organic phase.
Embodiment 3
Test 1.00L load uranium titanium organic phase, its titanium concentration is 48.0mg/L, uranium concentration is 11.8g/L.
(1) with the aqueous hydrogen peroxide solution is strippant, the organic phase of above-mentioned load uranium titanium carried out the first time strip, titanium is stripped to water 1 grade of reextraction progression.Wherein, the volume of hydrogen peroxide and the volume ratio of organic phase are 1: 10, and the ratio of the mole number of titanium is 10: 1 in the mole number of hydrogen peroxide and the organic phase;
(2) with the sal volatile be strippant again, the organic phase of step (1) gained is stripped, uranium is stripped to water 1 grade of reextraction progression.Wherein, organic phase and sal volatile volume ratio are 5: 1, and the ratio of the mole number of uranium is 15: 1 in the mole number of volatile salt and the organic phase.
Embodiment 4
Test 1.00L load uranium titanium organic phase, its titanium concentration is 48.0mg/L, uranium concentration is 23.6g/L.
(1) with the aqueous hydrogen peroxide solution is strippant, the organic phase of above-mentioned load uranium titanium carried out the first time strip, titanium is stripped to water 3 grades of reextraction progression.Wherein, the volume of hydrogen peroxide and the volume ratio of organic phase are 1: 80, and the ratio of the mole number of titanium is 50: 1 in the mole number of hydrogen peroxide and the organic phase;
(2) with the sal volatile be strippant again, the organic phase of step (1) gained is stripped, uranium is stripped to water 1 grade of reextraction progression.Wherein, organic phase and sal volatile volume ratio are 4: 1, and the ratio of the mole number of uranium is 20: 1 in the mole number of volatile salt and the organic phase.
The present invention is to adopt two kinds of strippants that the organic phase of load uranium and titanium was carried out for two steps to strip to the stripping process of uranium in the load organic phases and titanium, can accomplish effectively separating of uranium and titanium.
The employing aqueous hydrogen peroxide solution is a strippant, the organic phase of load uranium titanium is carried out multistage strip, and can realize effective separation of uranium, two kinds of elements of titanium.
Produce in the process of uranium concentrate at solvent extration, exist the phenomenon of uranium titanium coextraction, as uranium, titanium effectively not being separated in the reextraction process, element titanium will enter in the uranium product, make in the uranium concentrate requirement that surpasses in the GB10269-88 standard titanium content＜200mg/kg (uranium base).The present invention is directed to the present situation of the inferior separating effect that exists in the load uranium titanium organic phase reextraction process, the technological line that substep is stripped is proposed, it promptly at first is strippant with the aqueous hydrogen peroxide solution, strip through multistage,＞95% titanium is stripped to water, titanium uranium was reduced to 0.08: 1000 than by 1.8: 1000; Be strippant with the carbonate solution then, residual uranium is stripped to water, titanium uranium was reduced to 0.08: 1000 than by 1.8: 1000; Guarantee titanium content＜200mg/kg in the finished product uranium concentrate (uranium base), satisfy among the GB10269-88 index request fully titanium content.
Claims (5)
1. a substep is stripped and is separated the method for uranium titanium in the organic phase, and it is characterized in that: this method comprises the steps:
(1) with the aqueous hydrogen peroxide solution is strippant, the organic phase of load uranium titanium carried out the first time strip, titanium is stripped to water; Wherein, the volume of hydrogen peroxide and the volume ratio of organic phase are 1: the ratio of the mole number of titanium is (10～50) in (10～100), the mole number of hydrogen peroxide and organic phase: 1;
(2) be strippant with yellow soda ash or sal volatile again, the organic phase of step (1) gained is stripped, uranium is stripped to water; Wherein, organic phase and yellow soda ash or sal volatile volume ratio are (1.0～5): 1, and the ratio of the mole number of uranium is (8～20) in the mole number of yellow soda ash or volatile salt and the organic phase: 1.
2. a kind of substep according to claim 1 is stripped and is separated the method for uranium titanium in the organic phase, it is characterized in that: 1 grade of the described reextraction progression of step (1).
3. a kind of substep according to claim 1 is stripped and is separated the method for uranium titanium in the organic phase, and it is characterized in that: the described reextraction progression of step (1) is 2～4 grades.
4. a kind of substep according to claim 1 is stripped and is separated the method for uranium titanium in the organic phase, it is characterized in that: 1 grade of the described reextraction progression of step (2).
5. a kind of substep according to claim 1 is stripped and is separated the method for uranium titanium in the organic phase, it is characterized in that: 2～4 grades of the described reextraction progression of step (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010603415XA CN102115820A (en) | 2010-12-23 | 2010-12-23 | Method for separating uranium and titanium from organic phase through stepwise back extraction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010603415XA CN102115820A (en) | 2010-12-23 | 2010-12-23 | Method for separating uranium and titanium from organic phase through stepwise back extraction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102115820A true CN102115820A (en) | 2011-07-06 |
Family
ID=44214742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010603415XA Pending CN102115820A (en) | 2010-12-23 | 2010-12-23 | Method for separating uranium and titanium from organic phase through stepwise back extraction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102115820A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105023625A (en) * | 2015-06-10 | 2015-11-04 | 北京大学 | Recovery method for trace of uranium and/or plutonium in radioactive organic liquid waste |
| WO2018006437A1 (en) * | 2016-07-08 | 2018-01-11 | 广东省稀有金属研究所 | Method for removing radioactive substances from lanthanum extracting waste water |
| CN108384970A (en) * | 2018-03-02 | 2018-08-10 | 哈尔滨工业大学（威海） | The extraction agent solution and extracting process of titanium and/or iron are extracted from containing the more metal chloride acid solutions of ferrotianium |
| CN111020186A (en) * | 2019-12-10 | 2020-04-17 | 核工业北京化工冶金研究院 | Method for comprehensively recycling uranium, niobium and titanium from uranium-niobium-titanium ore |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4528165A (en) * | 1984-06-13 | 1985-07-09 | The United States Of America As Represented By The United States Department Of Energy | Separation of uranium from technetium in recovery of spent nuclear fuel |
| CN85105352A (en) * | 1985-07-13 | 1987-01-07 | 清华大学 | The method of from radioactive liquid waste, separating actinide |
| CN101886175A (en) * | 2010-07-02 | 2010-11-17 | 湘潭市天添矿业有限公司 | Method for producing diuranate by extracting uranium from rare earth slag containing uranium |
-
2010
- 2010-12-23 CN CN201010603415XA patent/CN102115820A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4528165A (en) * | 1984-06-13 | 1985-07-09 | The United States Of America As Represented By The United States Department Of Energy | Separation of uranium from technetium in recovery of spent nuclear fuel |
| CN85105352A (en) * | 1985-07-13 | 1987-01-07 | 清华大学 | The method of from radioactive liquid waste, separating actinide |
| CN101886175A (en) * | 2010-07-02 | 2010-11-17 | 湘潭市天添矿业有限公司 | Method for producing diuranate by extracting uranium from rare earth slag containing uranium |
Non-Patent Citations (5)
| Title |
|---|
| 《分析试验室》 20020131 张正雄等 锆存在时铀中杂质元素的化学分离－ICP－AES法 36-38 1-5 第21卷, 第1期 * |
| 《江西有色金属》 20100630 杨飞 低品位铀矿中铀的提取研究 23-25 1-5 第24卷, 第2期 * |
| 杨飞: "低品位铀矿中铀的提取研究", 《江西有色金属》 * |
| 程育芝等: "P507-H2SO4体系萃取色层分离铀、钍、锆、钛的研究", 《分析化学》 * |
| 铀矿冶分析基础知识编写组: "《铀矿冶分析基础知识》", 31 October 1980, 原子能出版社 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105023625A (en) * | 2015-06-10 | 2015-11-04 | 北京大学 | Recovery method for trace of uranium and/or plutonium in radioactive organic liquid waste |
| WO2018006437A1 (en) * | 2016-07-08 | 2018-01-11 | 广东省稀有金属研究所 | Method for removing radioactive substances from lanthanum extracting waste water |
| CN108384970A (en) * | 2018-03-02 | 2018-08-10 | 哈尔滨工业大学（威海） | The extraction agent solution and extracting process of titanium and/or iron are extracted from containing the more metal chloride acid solutions of ferrotianium |
| CN108384970B (en) * | 2018-03-02 | 2019-11-05 | 哈尔滨工业大学（威海） | The extraction agent solution and extracting process of titanium and iron are extracted from containing the more metal chloride acid solutions of ferrotianium |
| CN111020186A (en) * | 2019-12-10 | 2020-04-17 | 核工业北京化工冶金研究院 | Method for comprehensively recycling uranium, niobium and titanium from uranium-niobium-titanium ore |
| CN111020186B (en) * | 2019-12-10 | 2021-11-12 | 核工业北京化工冶金研究院 | Method for comprehensively recycling uranium, niobium and titanium from uranium-niobium-titanium ore |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2014513212A5 (en) | ||
| CN106674292B (en) | A kind of purification processing method of Sucralose water crystallization mother liquor | |
| TW200505846A (en) | Extraction process for removal of impurities from mother liquor in the synthesis of carboxylic acid | |
| CN108300877A (en) | The method of gallium germanium indium in extraction and recovery zinc replacement slag leachate | |
| CN109355502B (en) | Method for extracting lithium ions from acid system | |
| CN111187907B (en) | Method for purifying manganese sulfate solution | |
| CN102115820A (en) | Method for separating uranium and titanium from organic phase through stepwise back extraction | |
| CN111285403A (en) | Purification treatment method of manganese sulfate solution | |
| CN105219959A (en) | Adopt the method for Solvent-Impregnated Resins isolation of purified extracting vanadium from stone coal pickling liquor | |
| CN105018753B (en) | A kind of method of composite extractant and the composite extractant extract and separate recovery indium | |
| CN107475540B (en) | A kind of technique of titanium white devil liquor recovery vanadium and titanium | |
| CN112342407A (en) | Back extraction method of lithium extraction liquid | |
| CN109897976B (en) | La-Nd light rare earth pre-separation three-outlet extraction separation process | |
| CN109852796B (en) | Method for extracting and separating nickel and sodium in nickel sulfate solution | |
| CN104263930A (en) | Method for extraction separation of uranium from thorium, scandium, zirconium and titanium | |
| JP5867727B2 (en) | Separation method of rare earth elements | |
| CN102010999A (en) | Method for separating impurities from cobalt and/or nickel solution by non-saponifiable extraction | |
| CN106086406A (en) | A kind of renovation process of organic extractant | |
| CN103966441A (en) | Method for continuously extracting aluminum from rare earth liquid | |
| CN106282558A (en) | A kind of processing method of organic extractant | |
| CN106636686B (en) | Hydrochloric acid method produces synthetic rutile and leaches the method for extracting scandium in mother liquor | |
| CN113430387B (en) | Method for full-extraction separation of gallium, iron and zinc from sulfuric acid leaching solution of zinc replacement slag | |
| CN104164562B (en) | A kind of method that back extraction removes ferrum from extractant | |
| CN105648217A (en) | Regeneration method of indium in panel of waste flat-panel display | |
| CN101519222A (en) | Method for processing mixed waste liquor containing zinc sulfate and manganese sulfate in nickel salt production process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110706 |