CN112725630A - Method for extracting rubidium, cesium and lithium from sodium chloride slag - Google Patents
Method for extracting rubidium, cesium and lithium from sodium chloride slag Download PDFInfo
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- CN112725630A CN112725630A CN202011615318.2A CN202011615318A CN112725630A CN 112725630 A CN112725630 A CN 112725630A CN 202011615318 A CN202011615318 A CN 202011615318A CN 112725630 A CN112725630 A CN 112725630A
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- cesium
- rubidium
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- sodium chloride
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- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 229910052701 rubidium Inorganic materials 0.000 title claims abstract description 63
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 229910052792 caesium Inorganic materials 0.000 title claims abstract description 59
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 title claims abstract description 54
- 239000002893 slag Substances 0.000 title claims abstract description 32
- 239000011780 sodium chloride Substances 0.000 title claims abstract description 25
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 23
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 30
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000000706 filtrate Substances 0.000 claims abstract description 23
- KVNYFPKFSJIPBJ-UHFFFAOYSA-N 1,2-diethylbenzene Chemical compound CCC1=CC=CC=C1CC KVNYFPKFSJIPBJ-UHFFFAOYSA-N 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000003756 stirring Methods 0.000 claims abstract description 16
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- 239000003350 kerosene Substances 0.000 claims abstract description 11
- FAWNVSNJFDIJRM-UHFFFAOYSA-N [Rb].[Cs] Chemical compound [Rb].[Cs] FAWNVSNJFDIJRM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 3
- 238000011085 pressure filtration Methods 0.000 claims abstract description 3
- 239000000243 solution Substances 0.000 claims description 51
- 238000000605 extraction Methods 0.000 claims description 37
- FGDZQCVHDSGLHJ-UHFFFAOYSA-M rubidium chloride Chemical compound [Cl-].[Rb+] FGDZQCVHDSGLHJ-UHFFFAOYSA-M 0.000 claims description 14
- 238000005406 washing Methods 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 8
- AIYUHDOJVYHVIT-UHFFFAOYSA-M caesium chloride Chemical compound [Cl-].[Cs+] AIYUHDOJVYHVIT-UHFFFAOYSA-M 0.000 claims description 7
- 239000011259 mixed solution Substances 0.000 claims description 7
- 239000000047 product Substances 0.000 claims description 7
- 150000003297 rubidium Chemical class 0.000 claims description 7
- 229940102127 rubidium chloride Drugs 0.000 claims description 7
- 238000004064 recycling Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000007787 solid Substances 0.000 abstract description 5
- 238000011084 recovery Methods 0.000 description 10
- 238000001914 filtration Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- BKJLSPKSPIMIAD-UHFFFAOYSA-L [Cl-].[Cs+].[Na+].[Cl-] Chemical compound [Cl-].[Cs+].[Na+].[Cl-] BKJLSPKSPIMIAD-UHFFFAOYSA-L 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 229910052629 lepidolite Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229910001744 pollucite Inorganic materials 0.000 description 2
- BHKCBKMUUHAIAX-UHFFFAOYSA-N [Rb].[Cs].[Li] Chemical compound [Rb].[Cs].[Li] BHKCBKMUUHAIAX-UHFFFAOYSA-N 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- DLHONNLASJQAHX-UHFFFAOYSA-N aluminum;potassium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Si+4].[Si+4].[Si+4].[K+] DLHONNLASJQAHX-UHFFFAOYSA-N 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
- C22B7/007—Wet processes by acid leaching
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B26/00—Obtaining alkali, alkaline earth metals or magnesium
- C22B26/10—Obtaining alkali metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/04—Working-up slag
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Extraction Or Liquid Replacement (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a method for extracting rubidium, cesium and lithium from sodium chloride slag. The method for extracting rubidium, cesium and lithium from sodium chloride slag comprises the following steps: (1) dissolving sodium chloride slag in water to form a solution, adding hydrochloric acid to adjust the pH value of the solution to 2-3, heating and concentrating the solution, concentrating the solution to a liquid level of 1/3-1/4, and performing pressure filtration on the concentrated solution to extract a filtrate; (2) adding sodium hydroxide into the filtrate obtained in the step (1), preparing a rubidium-cesium solution with the alkalinity of 0.5-1mol/L, and continuously stirring for 20-40min by using a stirrer; (3) adding the solution treated in the step (2) into an extracting agent consisting of t-BAMBP, diethylbenzene and sulfonated kerosene, and stirring until rubidium and cesium in the solution are not detected. The method for extracting rubidium, cesium and lithium from sodium chloride slag not only solves the problem of low-concentration rubidium, cesium and lithium enrichment, but also solves the problem of recycling rubidium, cesium and lithium from solid slag, and is low in recycling cost and short in production cycle.
Description
Technical Field
The invention relates to the technical field of element separation, in particular to a method for extracting rubidium, cesium and lithium from sodium chloride slag.
Background
Rubidium and cesium are rare alkali metals with good photoelectric characteristics and chemical activity, and have wide application in the fields of national defense, medicine, new energy, aerospace and the like. Rubidium and cesium are used as rare metal elements and are widely distributed, and are present in lepidolite, pollucite, potassium feldspar, salt lake brine and geothermal water.
At present, the basic raw materials of industrial production of rubidium and cesium mainly include solid ores such as pollucite and lepidolite, after extraction and production, the extraction production efficiency of low-concentration rubidium and cesium is low, and in order to improve the production efficiency, a part of rubidium and cesium is basically enriched in solid slag after evaporation and concentration, so that the extraction of rare metal elements such as rubidium and cesium from rubidium and cesium sodium chloride slag has important significance for the sustainable development of rubidium and cesium extraction and recovery.
Disclosure of Invention
In view of the above, it is necessary to provide a method for extracting rubidium, cesium and lithium from sodium chloride slag.
In order to achieve the purpose, the invention provides the following technical scheme:
a method of extracting rubidium cesium lithium from a sodium chloride slag, said method comprising the steps of:
(1) dissolving sodium chloride slag in water to form a solution, adding hydrochloric acid to adjust the pH value of the solution to 2-3, heating and concentrating the solution, concentrating the solution to a liquid level of 1/3-1/4, and performing pressure filtration on the concentrated solution to extract a filtrate;
(2) adding sodium hydroxide into the filtrate obtained in the step (1), preparing a rubidium-cesium solution with the alkalinity of 0.5-1mol/L, and continuously stirring for 20-40min by using a stirrer;
(3) adding the solution treated in the step (2) into an extracting agent consisting of t-BAMBP, diethylbenzene and sulfonated kerosene, and stirring until rubidium and cesium in the solution are not detected;
(4) and (4) washing the extractant in the step (3) with water, performing back extraction with dilute hydrochloric acid to obtain mixed solution of rubidium chloride and cesium chloride, and performing extraction separation on rubidium and cesium to obtain rubidium salt and cesium salt products.
Further, the alkalinity of the extracting agent t-BAMBP extracting filtrate in the step (2) is 0.5-1 mol/L.
Further, the volume ratio of the extracting agent consisting of the t-BAMBP, the diethylbenzene and the sulfonated kerosene prepared in the step (3) is 1:2: 4.
Further, the concentration of the dilute hydrochloric acid used for back extraction in the step (4) is 1-2 mol/L.
According to the invention, sodium chloride slag is dissolved in water, then the temperature is raised, the concentration, the cooling crystallization, the filtration and the extraction of filtrate are carried out, sodium hydroxide is added into the filtrate for extraction by t-BAMBP, and rubidium and cesium are separated and extracted from the rubidium and cesium sodium chloride slag through water washing and back extraction, so that the problem of enrichment of low-concentration rubidium, cesium and lithium is solved, the problem of recovery of rubidium, cesium and lithium from solid slag is solved, the recovery cost is low, and the production period is short.
Drawings
Fig. 1 is a flow chart of a process for extracting rubidium and cesium from sodium chloride slag according to an embodiment of the present invention.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, the present invention provides a method for extracting rubidium, cesium and lithium from sodium chloride slag, comprising the steps of:
(1) dissolving sodium chloride residue in water, adding hydrochloric acid to adjust pH of the solution to 2-3, heating and concentrating the solution, concentrating to 1/3-1/4, press-filtering the concentrated solution, and extracting filtrate.
(2) And (2) adding sodium hydroxide into the filtrate obtained in the step (1), preparing a rubidium-cesium solution with the alkalinity of 0.5-1mol/L, and continuously stirring for 20-40min by using a stirrer to prepare a pre-extraction solution.
(3) Adding the solution treated in the step (2) into an extraction agent consisting of prepared t-BAMBP, diethylbenzene and sulfonated kerosene, fully stirring until rubidium and cesium in the solution are not detected, achieving the purpose of recycling rubidium and cesium, and carrying out chemical reaction as follows: m + + nROH + OH- = ROM (n-1) ROH + H2O.
(4) And (4) washing the extractant in the step (3) with water, performing back extraction with dilute hydrochloric acid to obtain a mixed solution of rubidium chloride and cesium chloride with high concentration, and performing extraction separation on rubidium and cesium to obtain qualified rubidium salt and cesium salt products.
Further, the sodium chloride slag is produced by solving the problem of low concentration of rubidium and cesium and improving the recovery efficiency of rubidium and cesium.
Further, the alkalinity of the extracting agent t-BAMBP extracting filtrate in the step (2) is 0.5-1 mol/L.
Further, the volume ratio of the extracting agent consisting of the t-BAMBP, the diethylbenzene and the sulfonated kerosene prepared in the step (3) is 1:2: 4.
Further, the concentration of the dilute hydrochloric acid used for back extraction in the step (4) is 1-2 mol/L.
According to the invention, sodium chloride slag is dissolved in water, then the temperature is raised, the concentration, the cooling crystallization, the filtration and the extraction of filtrate are carried out, sodium hydroxide is added into the filtrate for extraction by t-BAMBP, and rubidium and cesium are separated and extracted from the rubidium and cesium sodium chloride slag through water washing and back extraction, so that the problem of enrichment of low-concentration rubidium, cesium and lithium is solved, the problem of recovery of rubidium, cesium and lithium from solid slag is solved, the recovery cost is low, and the production period is short.
Example 1
A method for recovering rubidium, cesium and lithium from sodium chloride slag, comprising the steps of:
(1) dissolving rubidium and cesium sodium chloride wet material in water in a ratio of 1:4, adding hydrochloric acid to adjust the pH of the solution to 2-3, heating and concentrating the solution, and carrying out filter pressing on the solution to obtain filtrate.
(2) And (2) adding sodium hydroxide into the filtrate obtained in the step (1), preparing a rubidium-cesium solution with the alkalinity of 1.0mol/L, and continuously stirring for 20-40min by using a stirrer to prepare a pre-extraction solution.
(3) Adding the solution treated in the step (2) into an extraction agent consisting of prepared t-BAMBP, diethylbenzene and sulfonated kerosene, fully stirring until rubidium and cesium in the solution are not detected, achieving the purpose of recycling rubidium and cesium, and carrying out chemical reaction as follows: m + + nROH + OH- = ROM (n-1) ROH + H2O.
(4) And (3) washing rubidium and cesium in the extractant in the step (3) with water, performing back extraction with 1.0mol/L dilute hydrochloric acid to obtain a mixed solution of rubidium chloride and cesium chloride with high concentration, and performing extraction separation on rubidium and cesium to obtain qualified rubidium salt and cesium salt products.
In the present example, the recovery rate of rubidium, cesium and lithium extracted from the sodium chloride slag was 97.6%.
Example 2
(1) Dissolving sodium chloride residue in water at a ratio of 1:5, adding hydrochloric acid to adjust the pH of the solution to 2-3, heating and concentrating the solution, and press-filtering the solution to obtain filtrate.
(2) And (2) adding sodium hydroxide into the filtrate obtained in the step (1), preparing a rubidium-cesium solution with the alkalinity of 1.0mol/L, and continuously stirring for 20-40min by using a stirrer to prepare a pre-extraction solution.
(3) Adding the solution treated in the step (2) into an extraction agent consisting of prepared t-BAMBP, diethylbenzene and sulfonated kerosene, fully stirring until rubidium and cesium in the solution are not detected, achieving the purpose of recycling rubidium and cesium, and carrying out chemical reaction as follows: m + + nROH + OH- = ROM (n-1) ROH + H2O.
(4) And (3) washing rubidium and cesium in the extractant in the step (3) with water, performing back extraction with 1.0mol/L dilute hydrochloric acid to obtain a mixed solution of rubidium chloride and cesium chloride with high concentration, and performing extraction separation on rubidium and cesium to obtain qualified rubidium salt and cesium salt products.
In the present example, the recovery rate of rubidium, cesium and lithium extracted from the sodium chloride slag was 98.7%.
Example 3
(1) Dissolving sodium chloride residue in water at a ratio of 1:6, adding hydrochloric acid to adjust the pH of the solution to 2-3, heating and concentrating the solution, and press-filtering the solution to obtain filtrate.
(2) And (2) adding sodium hydroxide into the filtrate obtained in the step (1), preparing a rubidium-cesium solution with the alkalinity of 1.0mol/L, and continuously stirring for 20-40min by using a stirrer to prepare a pre-extraction solution.
(3) Adding the solution treated in the step (2) into an extraction agent consisting of prepared t-BAMBP, diethylbenzene and sulfonated kerosene, fully stirring until rubidium and cesium in the solution are not detected, achieving the purpose of recycling rubidium and cesium, and carrying out chemical reaction as follows: m + + nROH + OH- = ROM (n-1) ROH + H2O.
(4) And (3) washing rubidium and cesium in the extractant in the step (3) with water, performing back extraction with 1.0mol/L dilute hydrochloric acid to obtain a mixed solution of rubidium chloride and cesium chloride with high concentration, and performing extraction separation on rubidium and cesium to obtain qualified rubidium salt and cesium salt products.
In the present example, the recovery rate of rubidium, cesium and lithium extracted from the sodium chloride slag was 95.6%.
Example 4
(1) Dissolving sodium chloride residue in water at a ratio of 1:5, adding hydrochloric acid to adjust the pH of the solution to 2-3, heating and concentrating the solution, and press-filtering the solution to obtain filtrate.
(2) And (2) adding sodium hydroxide into the filtrate obtained in the step (1), preparing a rubidium-cesium solution with the alkalinity of 0.5mol/L, and continuously stirring for 20-40min by using a stirrer to prepare a pre-extraction solution.
(3) Adding the solution treated in the step (2) into an extraction agent consisting of prepared t-BAMBP, diethylbenzene and sulfonated kerosene, fully stirring until rubidium and cesium in the solution are not detected, achieving the purpose of recycling rubidium and cesium, and carrying out chemical reaction as follows: m + + nROH + OH- = ROM (n-1) ROH + H2O.
(4) And (3) washing rubidium and cesium in the extractant in the step (3) with water, performing back extraction with 1.0mol/L dilute hydrochloric acid to obtain a mixed solution of rubidium chloride and cesium chloride with high concentration, and performing extraction separation on rubidium and cesium to obtain qualified rubidium salt and cesium salt products.
In the present example, the recovery rate of rubidium, cesium and lithium extracted from the sodium chloride slag was 94.6%.
The above description is only for the purpose of illustrating specific embodiments of the present invention, and should not be construed as limiting the scope of the present invention, and all equivalent changes and modifications made in accordance with the spirit of the present invention should be considered as falling within the scope of the present invention.
Claims (4)
1. A method for extracting rubidium, cesium and lithium from sodium chloride slag is characterized by comprising the following steps: the method comprises the following steps:
(1) dissolving sodium chloride slag in water to form a solution, adding hydrochloric acid to adjust the pH value of the solution to 2-3, heating and concentrating the solution, concentrating the solution to a liquid level of 1/3-1/4, and performing pressure filtration on the concentrated solution to extract a filtrate;
(2) adding sodium hydroxide into the filtrate obtained in the step (1), preparing a rubidium-cesium solution with the alkalinity of 0.5-1mol/L, and continuously stirring for 20-40min by using a stirrer;
(3) adding the solution treated in the step (2) into an extracting agent consisting of t-BAMBP, diethylbenzene and sulfonated kerosene, and stirring until rubidium and cesium in the solution are not detected;
(4) and (4) washing the extractant in the step (3) with water, performing back extraction with dilute hydrochloric acid to obtain mixed solution of rubidium chloride and cesium chloride, and performing extraction separation on rubidium and cesium to obtain rubidium salt and cesium salt products.
2. The method of claim 1, wherein the method comprises extracting rubidium, cesium and lithium from sodium chloride slag, wherein the method comprises: the alkalinity of the extracting agent t-BAMBP extracting filtrate in the step (2) is 0.5-1 mol/L.
3. The method of claim 1, wherein the method comprises extracting rubidium, cesium and lithium from sodium chloride slag, wherein the method comprises: the volume ratio of the extracting agent consisting of the t-BAMBP, the diethylbenzene and the sulfonated kerosene prepared in the step (3) is 1:2: 4.
4. The method of claim 1, wherein the method comprises extracting rubidium, cesium and lithium from sodium chloride slag, wherein the method comprises: the concentration of the dilute hydrochloric acid used for back extraction in the step (4) is 1-2 mol/L.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103787375A (en) * | 2014-02-19 | 2014-05-14 | 中国科学院青海盐湖研究所 | Method for extracting rubidium salt and cesium salt |
| US20150167118A1 (en) * | 2012-07-05 | 2015-06-18 | Aisin Seiki Kabushiki Kaisha | Alkali metal and/or alkali earth metal extraction method |
| CN105256150A (en) * | 2015-10-26 | 2016-01-20 | 中国科学院青海盐湖研究所 | Method for extracting rubdium and cesium from acid brine |
| CN105803188A (en) * | 2016-05-30 | 2016-07-27 | 江西旭锂矿业有限公司 | Method for preferential segregation of potassium, rubidium and cesium through chloridizing roasting treatment of lepidolite |
| CN107217156A (en) * | 2017-04-12 | 2017-09-29 | 天齐锂业股份有限公司 | The method that rubidium cesium salt is extracted from spodumene lithium liquor |
-
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- 2020-12-31 CN CN202011615318.2A patent/CN112725630A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150167118A1 (en) * | 2012-07-05 | 2015-06-18 | Aisin Seiki Kabushiki Kaisha | Alkali metal and/or alkali earth metal extraction method |
| CN103787375A (en) * | 2014-02-19 | 2014-05-14 | 中国科学院青海盐湖研究所 | Method for extracting rubidium salt and cesium salt |
| CN105256150A (en) * | 2015-10-26 | 2016-01-20 | 中国科学院青海盐湖研究所 | Method for extracting rubdium and cesium from acid brine |
| CN105803188A (en) * | 2016-05-30 | 2016-07-27 | 江西旭锂矿业有限公司 | Method for preferential segregation of potassium, rubidium and cesium through chloridizing roasting treatment of lepidolite |
| CN107217156A (en) * | 2017-04-12 | 2017-09-29 | 天齐锂业股份有限公司 | The method that rubidium cesium salt is extracted from spodumene lithium liquor |
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