CN109536740A - The method of cesium sulfate is prepared in a kind of brine waste - Google Patents
The method of cesium sulfate is prepared in a kind of brine waste Download PDFInfo
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- CN109536740A CN109536740A CN201811526644.9A CN201811526644A CN109536740A CN 109536740 A CN109536740 A CN 109536740A CN 201811526644 A CN201811526644 A CN 201811526644A CN 109536740 A CN109536740 A CN 109536740A
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- cesium sulfate
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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
- C22B26/00—Obtaining alkali, alkaline earth metals or magnesium
- C22B26/10—Obtaining alkali metals
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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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
- C22B3/40—Mixtures
- C22B3/409—Mixtures at least one compound being an organo-metallic compound
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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
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- 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
Abstract
The present invention relates to industrial wastes to recycle high value arts, and in particular to is a kind of method for preparing cesium sulfate in brine waste, first prepares extractant, take t-BAMBP, P204And kerosene, by t-BAMBP, P204It is mixed with kerosene, extractant is made, then feed liquid ion concentration is detected, it takes brine waste to adjust PH again, rear extractant is then subjected to multi-stage counter current extraction to feed liquid, load organic phases are made, circulation countercurrent washing is carried out to load organic phases by water lotion again, then stripping agent is made, then is stripped, finally evaporates and cesium sulfate is made.It realizes and is separated in brine waste, extracts cesium element, using the alkalescent of brine waste, provide under alkaline condition a kind of based on t-BAMBP and P204Caesium in synergic solvent extraction brine waste.
Description
Technical field
The present invention relates to industrial wastes to recycle high value arts, and in particular to is to prepare sulfuric acid in a kind of brine waste
The method of caesium.
Background technique
Rubidium, caesium have extensively as important rare alkali metal resource in fields such as Industrial Catalysis, medicine and special glasss
Use, existing separation rubidium, caesium method mostly use distribution precipitating, fractional crystallization, ion exchange and solvent extraction, and be terrible
Rubidium, caesium to high quality often use solvent extraction.
During solid dangerous waste synthetical recovery field, the high washing of material containing chlorine, the member of caesium containing rubidium in the brine waste of output
Element washes chlorine effect in the washing process of material containing chlorine in order to improve, and the basic auxiliaries such as piece alkali, soda ash are added, make brine waste pH
Value is greater than 9, while in order to reduce the treating capacity of subsequent brine waste, after repeatedly recycling, waste water salt content is higher, while rubidium
Caesium is also enriched to higher level, has very high recovery value.
With BAMBP best performance in Solvent Extraction Separation rubidium caesium system, and BAMBP not can manufacture at home, and price
It is high, lead to the high expensive for separating rubidium caesium, higher level is also not achieved in the rate of recovery.
The patent of invention of Publication No. CN107254589A discloses a kind of t-BAMBP extraction separation and Extraction salt lake bittern
The method of middle rubidium caesium, this method is intended in acid brine recycle rubidium caesium using extraction, but it is useless to be not particularly suited for alkaline saliferous
Water, while being washed in washing section using peracid, caesium in load organic phases can be made to enter in cleaning solution, cause rubidium, caesium, potassium same
When in cleaning solution, the effect of separation is not achieved, it is even more impossible to caesium carry out Enrichment purification, be not appropriate for industrial production.
Summary of the invention
The present invention, which is directed to, to be separated in brine waste, extracts cesium element, using the alkalescent of brine waste, in alkaline condition
Under provide it is a kind of based on t-BAMBP and P204The method of caesium in synergic solvent extraction brine waste.
The present invention solves above-mentioned technical problem, the technical solution adopted is that, the side of cesium sulfate is prepared in a kind of brine waste
Method, comprising the following steps:
The first step prepares extractant, takes t-BAMBP, P204And kerosene, by t-BAMBP, P204It is mixed with kerosene, extraction is made
Take agent；
Second step detects feed liquid ion concentration, detects Cs in brine waste by atomic absorption spectrography (AAS)+、Rb+、K+And Na+It is dense
Degree；
Third step takes brine waste to adjust PH, adjusts brine waste pH value using alkaline matter, feed liquid is made；
Rear extractant is carried out multi-stage counter current extraction to feed liquid, load organic phases is made by the 4th step；
5th step carries out circulation countercurrent washing to load organic phases by water lotion, and washing back loading organic phase is made；
6th step makes stripping agent, and the stripping agent of sulfur acid is prepared by water and sulfuric acid；
6th step is made stripping agent and is stripped to washing back loading organic phase made from the 5th step, is made by the 7th step, back extraction
Cesium sulfate solution；
8th step, evaporation, cesium sulfate solution made from the 7th step is evaporated, and cesium sulfate is made.
Further, the first step, by weight t-BAMBP are 15~20 parts, P204It is 5 parts and kerosene is 75~80 parts.
Further, second step, Cs+Concentration is 0.1~1.2g/L, Rb+Concentration is 0.2~1.2g/L, K+Concentration be 25~
45g/L and Na+Concentration is 30~80g/L.
Further, third step, alkaline matter are sodium carbonate, sodium hydroxide, liquid alkaline, adjust PH > 13, adding manner packet
It includes and sodium carbonate is perhaps added or the direct reinforcing body in reactive tank after sodium hydroxide dissolution in liquid form, keep saliferous useless
Water and alkali are uniformly mixed.
Further, the 4th step is 1~5:1 compared to (O:A), and stirring is self-priming stirring, the line of stirring in extraction process
Speed is in 5~8m/s, and it is counter-current extraction that extracting series, which is 3~5 grades of extractions, and raffinate extracted controls pH > 8.
Optionally, the 5th step, washing section are 2~4:1 compared to (O:A), and water lotion is industrial process waters, and two-stage countercurrent is washed
It washs, is discharged after potassium reaches 50g/L in cleaning solution, adds new water lotion, wash water pH > 9 after circulation.
Optionally, the sulfuric acid that concentration is 98% is added in industrial process waters, prepares and contains SO for the 6th step2 2-> 20g/L.
Further, the 7th step, back extraction are extracted using 2~4 stage countercurrents, are 3~8:1, liquid sulfur-bearing after back extraction compared to (O:A)
Sour 20g/L is slowly added to concentrated sulfuric acid supplement free acid in stripping process and prepares sulfuric acid when solution caesium concentration is greater than 60g/L
Caesium.
Further, cesium sulfate solution is evaporated concentration by the 8th step, and solution temperature is 90~120 in evaporation process
DEG C, cesium sulfate crystal is obtained by filtration after being precipitated in band mass crystallization, and cesium sulfate product is obtained after drying.
Beneficial effects of the present invention include at least following one；
1, in soda-wash solution, by controlling the pH value of solution, rubidium caesium and other sun are separated to greatest extent in extraction process
The extraction yield of ion, caesium is greater than 95%, and when with industrial production water washing, organic phase brings part residual alkali into, has again to rubidium potassium etc.
Effect separation, ensures the quality to subsequent sulphuric acid caesium product.
Although 2, solving BAMBP best performance in existing Solvent Extraction Separation rubidium caesium system, and BAMBP is at home not
It can manufacture, and at high price, lead to the problem of separating the high expensive of rubidium caesium.
Detailed description of the invention
Fig. 1 is to prepare cesium sulfate process flow diagram in brine waste.
Specific embodiment
It is clear in order to enable the objectives, technical solutions, and advantages of the present invention to be more clear, with reference to embodiments with it is attached
The present invention will be described in further detail for figure.It should be appreciated that specific embodiment described herein is only used to explain this hair
It is bright, it is not intended to limit the present invention protection content.
Embodiment 1
As shown in Figure 1, a kind of method for preparing cesium sulfate in brine waste, comprising the following steps:
The first step prepares extractant, takes t-BAMBP, P204And kerosene, by t-BAMBP, P204It is mixed with kerosene, extraction is made
Take agent；
Second step detects feed liquid ion concentration, detects Cs in brine waste by atomic absorption spectrography (AAS)+、Rb+、K+And Na+It is dense
Degree；
Third step takes brine waste to adjust PH, adjusts brine waste pH value using alkaline matter, feed liquid is made；
Rear extractant is carried out multi-stage counter current extraction to feed liquid, load organic phases is made by the 4th step；
5th step carries out circulation countercurrent washing to load organic phases by water lotion, and washing back loading organic phase is made；
6th step makes stripping agent, and the stripping agent of sulfur acid is prepared by water and sulfuric acid；
6th step is made stripping agent and is stripped to washing back loading organic phase made from the 5th step, is made by the 7th step, back extraction
Cesium sulfate solution；
8th step, evaporation, cesium sulfate solution made from the 7th step is evaporated, and cesium sulfate is made.
In use, by controlling the pH value of solution, separating rubidium caesium to greatest extent in extraction process in soda-wash solution
And other cations, the extraction yield of caesium are greater than 95%, when with industrial production water washing, organic phase brings part residual alkali into, to rubidium potassium
Deng efficiently separating again, the quality to subsequent sulphuric acid caesium product is ensured.It solves in existing Solvent Extraction Separation rubidium caesium system
Although BAMBP best performance, and BAMBP not can manufacture at home, and at high price, lead to the high expensive for separating rubidium caesium
The problem of.
Embodiment 2
The method of cesium sulfate is prepared in a kind of brine waste, comprising the following steps:
The first step prepares extractant, takes t-BAMBP, P204And kerosene, by t-BAMBP, P204It is mixed with kerosene, extraction is made
Agent is taken, t-BAMBP by weight is 15 parts, P204It is 5 parts and kerosene is 75 parts；
Second step detects feed liquid ion concentration, detects Cs in brine waste by atomic absorption spectrography (AAS)+、Rb+、K+And Na+It is dense
Degree, Cs+Concentration is 0.1g/L, Rb+Concentration is 0.2g/L, K+Concentration is 25g/L, Na+Concentration is 30g/L；
Third step takes brine waste to adjust PH, adjusts brine waste pH value using alkaline matter, feed liquid is made, wherein basic species
Matter be sodium carbonate, sodium hydroxide, liquid alkaline, adjust PH > 13, adding manner include by sodium carbonate or sodium hydroxide dissolution after with
Liquid form is added, and is uniformly mixed brine waste and alkali；
Rear extractant is carried out multi-stage counter current extraction to feed liquid, load organic phases is made by the 4th step, wherein being 1 compared to (O:A):
1, stirring is self-priming stirring in extraction process, and for the linear velocity of stirring in 5m/s, it is counter-current extraction that extracting series, which is 3 grades of extractions,
Raffinate extracted controls pH > 8；
5th step carries out circulation countercurrent washing to load organic phases by water lotion, washing back loading organic phase is made, wherein washing
It is 2:1 that section, which is washed, compared to (O:A), and water lotion is industrial process waters, two-stage countercurrent washing, after potassium reaches 50g/L in cleaning solution
It is discharged, adds new water lotion, wash water pH > 9 after circulation；
6th step makes stripping agent, and the stripping agent of sulfur acid is prepared by water and sulfuric acid, will be added in industrial process waters dense
The sulfuric acid that degree is 98% is prepared and contains SO2 2-The stripping agent of > 20g/L；
6th step is made stripping agent and is stripped to washing back loading organic phase made from the 5th step, is made by the 7th step, back extraction
Cesium sulfate solution, wherein back extraction is extracted using 2 stage countercurrents, it is 3:1 compared to (O:A), liquid sulfur acid 20g/L, was stripped after back extraction
It is slowly added to concentrated sulfuric acid supplement free acid in journey and prepares cesium sulfate when solution caesium concentration is greater than 60g/L；
8th step, evaporation, cesium sulfate solution made from the 7th step is evaporated, and cesium sulfate is made, wherein by cesium sulfate solution
It is evaporated concentration, for solution temperature at 90 DEG C, cesium sulfate crystal is obtained by filtration after being precipitated in band mass crystallization in evaporation process, is dried
After obtain cesium sulfate product.
In use, by controlling the pH value of solution, separating rubidium caesium to greatest extent in extraction process in soda-wash solution
And other cations, the extraction yield of caesium are greater than 95%, when with industrial production water washing, organic phase brings part residual alkali into, to rubidium potassium
Deng efficiently separating again, the quality to subsequent sulphuric acid caesium product is ensured.It solves in existing Solvent Extraction Separation rubidium caesium system
Although BAMBP best performance, and BAMBP not can manufacture at home, and at high price, lead to the high expensive for separating rubidium caesium
The problem of.
Embodiment 3
The method of cesium sulfate is prepared in a kind of brine waste, comprising the following steps:
The first step prepares extractant, takes t-BAMBP, P204And kerosene, by t-BAMBP, P204It is mixed with kerosene, extraction is made
Agent is taken, t-BAMBP by weight is 20 parts, P204It is 5 parts and kerosene is 80 parts；
Second step detects feed liquid ion concentration, detects Cs in brine waste by atomic absorption spectrography (AAS)+、Rb+、K+、Na+It is dense
Degree, Cs+Concentration is 1.2g/L, Rb+Concentration is 1.2g/L, K+Concentration is 45g/L, Na+Concentration is 80g/L；
Third step takes brine waste to adjust PH, adjusts brine waste pH value using alkaline matter, feed liquid is made, wherein basic species
Matter be sodium carbonate, sodium hydroxide, liquid alkaline, adjust PH > 13, adding manner include by sodium carbonate or sodium hydroxide dissolution after with
Liquid form is added, and is uniformly mixed brine waste and alkali；
Rear extractant is carried out multi-stage counter current extraction to feed liquid, load organic phases is made by the 4th step, wherein being 5 compared to (O:A):
1, stirring is self-priming stirring in extraction process, and for the linear velocity of stirring in 8m/s, it is counter-current extraction that extracting series, which is 5 grades of extractions,
Raffinate extracted controls pH > 8；
5th step carries out circulation countercurrent washing to load organic phases by water lotion, washing back loading organic phase is made, wherein washing
It is 4:1 that section, which is washed, compared to (O:A), and water lotion is industrial process waters, two-stage countercurrent washing, after potassium reaches 50g/L in cleaning solution
It is discharged, adds new water lotion, wash water pH > 9 after circulation；
6th step makes stripping agent, and the stripping agent of sulfur acid is prepared by water and sulfuric acid, will be added in industrial process waters dense
The sulfuric acid that degree is 98% is prepared and contains SO2 2-The stripping agent of > 20g/L；
6th step is made stripping agent and is stripped to washing back loading organic phase made from the 5th step, is made by the 7th step, back extraction
Cesium sulfate solution, wherein back extraction is extracted using 4 stage countercurrents, it is 8:1 compared to (O:A), liquid sulfur acid 20g/L, was stripped after back extraction
It is slowly added to concentrated sulfuric acid supplement free acid in journey and prepares cesium sulfate when solution caesium concentration is greater than 60g/L；
8th step, evaporation, cesium sulfate solution made from the 7th step is evaporated, and cesium sulfate is made, wherein by cesium sulfate solution
It is evaporated concentration, for solution temperature at 120 DEG C, cesium sulfate crystal is obtained by filtration after being precipitated in band mass crystallization in evaporation process, is dried
Cesium sulfate product is obtained after dry.
In use, by controlling the pH value of solution, separating rubidium caesium to greatest extent in extraction process in soda-wash solution
And other cations, the extraction yield of caesium are greater than 95%, when with industrial production water washing, organic phase brings part residual alkali into, to rubidium potassium
Deng efficiently separating again, the quality to subsequent sulphuric acid caesium product is ensured.It solves in existing Solvent Extraction Separation rubidium caesium system
Although BAMBP best performance, and BAMBP not can manufacture at home, and at high price, lead to the high expensive for separating rubidium caesium
The problem of.
Embodiment 4
Organic phase is prepared according to the ratio of step, brine waste is taken and detects Cs therein+、Rb+、K+、Na+Concentration, it is useless to saliferous
Addition alkali is allowed to pH > 13. and obtains feed liquid in water, and prepared organic phase (O:A) compared with feed liquid is that 5:1 carries out 5 stage countercurrent extractions
It takes, stirring is self-priming stirring in extraction process, and the linear velocity of stirring is in 5 meter per seconds.Washing section with production water management compared to (O:
It A) is 4:1.Two-stage countercurrent washing is carried out to load organic phases, for liquid when potassium is less than 50g/l, control pH is greater than 9 after washing, as
Washing water continues to use, and is discharged when potassium is greater than 50g/l, and organic phase then carries out 2 stage countercurrent back extraction with the water of sulfur acid 20g/l,
Control is 3:1 compared to (O:A), liquid sulfur acid 20g/l after control back extraction in stripping process, is slowly added to the concentrated sulfuric acid in stripping process
Free acid is supplemented, is recycled, when solution caesium concentration is greater than 60g/l, the cesium sulfate solution being prepared into is in temperature in 110 DEG C of temperature
It is evaporated under degree, obtains cesium sulfate product.
Specific data see the table below:
Embodiment 5
Organic phase is prepared according to the ratio of step, brine waste is taken and detects Cs therein+、Rb+、K+、Na+Concentration, it is useless to saliferous
Addition alkali is allowed to pH > 13. and obtains feed liquid in water, and prepared organic phase (O:A) compared with feed liquid is that 3:1 carries out 4 stage countercurrent extractions
It takes, stirring is self-priming stirring in extraction process, and the linear velocity of stirring is in 8 meter per seconds.Washing section with production water management compared to (O:
It A) is 3:1.Two-stage countercurrent washing is carried out to load organic phases, for liquid when potassium is less than 50g/l, control pH is greater than 9 after washing, as
Washing water continues to use, and is discharged when potassium is greater than 50g/l, and organic phase then carries out 3 stage countercurrent back extraction with the water of sulfur acid 20g/l,
Control is 5:1 compared to (O:A), liquid sulfur acid 20g/l after control back extraction in stripping process, is slowly added to the concentrated sulfuric acid in stripping process
Free acid is supplemented, is recycled, when solution caesium concentration is greater than 60g/l, the cesium sulfate solution being prepared into is in temperature in 90 DEG C of temperature
It is evaporated under degree, obtains cesium sulfate product.
Specific data see the table below:
Embodiment 6
Organic phase is prepared according to the ratio of step 1, brine waste is taken and detects Cs therein+、Rb+、K+、Na+Concentration, to saliferous
Addition alkali is allowed to pH > 13. and obtains feed liquid in waste water, and prepared organic phase (O:A) compared with feed liquid is that 2:1 carries out 3 stage countercurrents
It extracts, stirring is self-priming stirring in extraction process, and the linear velocity of stirring is in 7 meter per seconds.Washing section is compared with production water management
It (O:A) is 2:1.Two-stage countercurrent washing is carried out to load organic phases, for liquid when potassium is less than 50g/l, control pH is greater than 9 after washing,
It continues to use, is discharged when potassium is greater than 50g/l, it is anti-that organic phase then carries out 4 stage countercurrents with the water of sulfur acid 20g/l as washing water
Extraction, control are 8:1 compared to (O:A), liquid sulfur acid 20g/l after control back extraction in stripping process, are slowly added in stripping process dense
Sulfuric acid supplements free acid, is recycled, and when solution caesium concentration is greater than 60g/l, the cesium sulfate solution being prepared into is in temperature 120
It is evaporated at a temperature of DEG C, obtains cesium sulfate product.Specific data see the table below:
Claims (9)
1. preparing the method for cesium sulfate in a kind of brine waste, it is characterised in that: the following steps are included:
The first step prepares extractant, takes t-BAMBP, P204And kerosene, by t-BAMBP, P204It is mixed with kerosene, extraction is made
Take agent；
Second step detects feed liquid ion concentration, detects Cs in brine waste by atomic absorption spectrography (AAS)+、Rb+、K+And Na+It is dense
Degree；
Third step takes brine waste to adjust PH, adjusts brine waste pH value using alkaline matter, feed liquid is made；
Rear extractant is carried out multi-stage counter current extraction to feed liquid, load organic phases is made by the 4th step；
5th step carries out circulation countercurrent washing to load organic phases by water lotion, and washing back loading organic phase is made；
6th step makes stripping agent, and the stripping agent of sulfur acid is prepared by water and sulfuric acid；
6th step is made stripping agent and is stripped to washing back loading organic phase made from the 5th step, is made by the 7th step, back extraction
Cesium sulfate solution；
8th step, evaporation, cesium sulfate solution made from the 7th step is evaporated, and cesium sulfate is made.
2. preparing the method for cesium sulfate in a kind of brine waste according to claim 1, it is characterised in that: described first
Step, by weight t-BAMBP are 15~20 parts, P204It is 5 parts and kerosene is 75~80 parts.
3. preparing the method for cesium sulfate in a kind of brine waste according to claim 2, it is characterised in that: described second
Step, Cs+Concentration is 0.1~1.2g/L, Rb+Concentration is 0.2~1.2g/L, K+Concentration is 25~45g/L and Na+Concentration be 30~
80g/L。
4. preparing the method for cesium sulfate in a kind of brine waste according to claim 3, it is characterised in that: the third
Step, alkaline matter are sodium carbonate, sodium hydroxide, liquid alkaline, adjust PH > 13, adding manner includes by sodium carbonate or sodium hydroxide
It is added in liquid form after dissolution, or the direct reinforcing body in reactive tank, is uniformly mixed brine waste and alkali.
5. preparing the method for cesium sulfate in a kind of brine waste according to claim 4, it is characterised in that: the described 4th
Step is 1~5:1 compared to (O:A), and stirring is self-priming stirring in extraction process, and the linear velocity of stirring extracts grade in 5~8m/s
Number is 3~5 grades of extractions, is counter-current extraction, and raffinate extracted controls pH > 8.
6. preparing the method for cesium sulfate in a kind of brine waste according to claim 5, it is characterised in that: the described 5th
Step, washing section are 2~4:1 compared to (O:A), and water lotion is industrial process waters, two-stage countercurrent washing, when potassium reaches in cleaning solution
It is discharged after 50g/L, adds new water lotion, wash water pH > 9 after circulation.
7. preparing the method for cesium sulfate in a kind of brine waste according to claim 6, it is characterised in that: the described 6th
The sulfuric acid that concentration is 98% is added in industrial process waters, prepares and contains SO for step2 2-> 20g/L.
8. preparing the method for cesium sulfate in a kind of brine waste according to claim 7, it is characterised in that: the described 7th
Step, back extraction are extracted using 2~4 stage countercurrents, are 3~8:1, liquid sulfur acid 20g/L after back extraction compared to (O:A), are delayed in stripping process
The slow concentrated sulfuric acid that is added supplements free acid, when solution caesium concentration is greater than 60g/L, prepares cesium sulfate.
9. preparing the method for cesium sulfate in a kind of brine waste according to claim 7, it is characterised in that: the described 8th
Step, is evaporated concentration for cesium sulfate solution, and solution temperature is at 90~120 DEG C in evaporation process, mistake after band mass crystallization is precipitated
Filter obtains cesium sulfate crystal, and cesium sulfate product is obtained after drying.
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| CN201811526644.9A CN109536740B (en) | 2018-12-13 | 2018-12-13 | Method for preparing cesium sulfate from salt-containing wastewater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114635047A (en) * | 2022-04-06 | 2022-06-17 | 中国科学院过程工程研究所 | Method for extracting cesium in salt lake brine |
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| CN102557085A (en) * | 2011-11-03 | 2012-07-11 | 上海离岛电子新材料有限公司 | Method for producing cesium salt and rubidium salt based on zero discharge and continuous extraction |
| CN107254589A (en) * | 2017-07-06 | 2017-10-17 | 河北工程大学 | A kind of rubidium caesium in t BAMBP extractions separation and Extraction salt lake bittern |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241409A (en) * | 2010-05-12 | 2011-11-16 | 上海实验试剂有限公司 | Preparation method of cesium carbonate |
| CN102312110A (en) * | 2010-07-09 | 2012-01-11 | 何涛 | Method for extracting alkali metal from salt lake brine and seawater through membrane extraction-back extraction |
| CN102557085A (en) * | 2011-11-03 | 2012-07-11 | 上海离岛电子新材料有限公司 | Method for producing cesium salt and rubidium salt based on zero discharge and continuous extraction |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114635047A (en) * | 2022-04-06 | 2022-06-17 | 中国科学院过程工程研究所 | Method for extracting cesium in salt lake brine |
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Denomination of invention: A method for preparing Caesium sulfate from salty wastewater Effective date of registration: 20230625 Granted publication date: 20210727 Pledgee: Gejiu Sub branch of Agricultural Bank of China Co.,Ltd. Pledgor: GREENNOVO ENVIRONMENTAL TECHNOLOGY CO.,LTD. Registration number: Y2023530000042 |