CN109626414A - A method of thallium and rhenium being recycled in waste acid from smelting - Google Patents
A method of thallium and rhenium being recycled in waste acid from smelting Download PDFInfo
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- CN109626414A CN109626414A CN201910098339.2A CN201910098339A CN109626414A CN 109626414 A CN109626414 A CN 109626414A CN 201910098339 A CN201910098339 A CN 201910098339A CN 109626414 A CN109626414 A CN 109626414A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G15/00—Compounds of gallium, indium or thallium
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G47/00—Compounds of rhenium
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
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- C01P2006/80—Compositional purity
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Abstract
The invention belongs to the production fields of metal product, and in particular to a method of thallium and rhenium are recycled in waste acid from smelting.Present invention finds molybdenum-rhenium recycling, dedicated ion exchange resin --- RCX-5143 resin has the function of special selective absorption to trivalent thallium complex anion, using RCX-5143 resin under highly acidity pH < 1 direct adsorbing and extracting dissipated metal thallium and rhenium, it does not need with alkali neutralization acidity, raw material is smeltery's acid waste water, the adsorbent material being added in entire technical process is commercially available RCX-5143 resin, not only simple process, inexpensive, and the rate of recovery of thallium is up to 83.4%~85.7%, and the rate of recovery of rhenium is up to 82.2%~86.6%.
Description
Technical field
The invention belongs to the production fields of metal product, and in particular to a kind of from the side for smelting recycling thallium and rhenium in waste acid
Method.
Background technique
Thallium and rhenium are dissipated metal.Dissipated metal has particularly important purposes, is the weight of contemporary high technology new material
Component part is wanted, a series of compound semiconductors, electron-optical material, specific alloy, new function can be formed with non-ferrous metal
Material and organo-metallic compound etc. are widely used in contemporary mechanics of communication, electronic computer, aerospace exploitation, medical and health, sense
Luminescent material, photoelectric material, the energy and catalysis material etc..
Thallium and rhenium are typically found in some mineral resources (such as non-ferrous metal copper sulfide mine).In non-ferrous metal metallurgy
Desulfurization link in journey, thallium and rhenium are mainly volatized into flue gas, enter acid waste water (i.e. waste acid) through flue gas washing, such as Copper making
The cumulative amount of thallium and rhenium is all up tens of mg/L in waste acid.Acid waste water generallys use in lime and sedimentation removes heavy metal,
A large amount of solid wastes are generated, and thallium mainly exists with monovalent ion, hydroxide (TlOH) is dissolved in water.On the one hand, waste water containing thallium
If handled not in time, will threaten to environment；On the other hand, dissipated metal resource is extremely limited, and the content in the earth's crust is very
It is low, it without recycling is waste to resource in smelting process.
The application for a patent for invention of Publication No. CN 10379005A discloses one kind and produces protochloride with lead-zinc smelting wastewater
Pb-Zn deposits melting waste slag and lime are first added into lead-zinc smelting wastewater, collects the bed mud of precipitating, then past for the method for thallium, this method
Pb-Zn deposits smelting wastewater is added in bed mud and sulfuric acid obtains thallium extracting solution, sodium chloride then is added toward thallium extracting solution and obtains sediment
Thallous chloride.Although the scheme of above-mentioned patent application has the advantages that " treatment of wastes with processes of wastes against one another ", the rate of recovery of thallium is relatively low.
The application for a patent for invention of Publication No. CN108611496A discloses a kind of side for extracting and coming from Copper making waste acid
Method, this method recycle the rhenium in waste acid using RCX-5143 macroporous anion exchange resin, but without reference to the recycling of thallium.
Summary of the invention
In order to overcome the shortcomings and deficiencies of the prior art, the purpose of the present invention is to provide one kind recycles from smelting waste acid
The method of thallium and rhenium, the method that thallium and rhenium are recycled especially from the waste acid of pH < 1, this method have while recycling dissipated metal
Thallium and rhenium, and the advantage that the rate of recovery is high.
To achieve the goals above, The technical solution adopted by the invention is as follows:
A method of thallium and rhenium being recycled in waste acid from smelting, comprising the following steps:
(1) pretreatment of resin
It is rinsed with water after RCX-5143 anion exchange resin is impregnated with sodium hydroxide solution to neutrality, then with salt acidleach
Bubble is transformed into chlorine type, is then rinsed with water to neutrality, obtains pretreated resin；
(2) recycling of rhenium
It takes smeltery containing thallium and rhenium waste acid, filters out insoluble matter, it is in yellow that bromine water to waste acid is added dropwise under stirring conditions, and
It keeps 10min colour-fast, makes the monovalence thallium (Tl in waste acid+) fully oxidized and form trivalent thallium complex anion, pretreatment is added
Resin, stirring and adsorbing ReO4 -With thallium complex anion, resin is collected in filtering, and the ammonium hydroxide containing EDTA or DTPA, stirring elution is added
ReO4 -, eluent is obtained, is concentrated by evaporation, it is cooling, it is precipitated, it is dry, obtain rehenic acid ammonia (NH4ReO4)；
(3) recycling of thallium
Collect elution ReO4 -Na is added in resin afterwards2SO3Solution, stirring elution Tl3+Ion obtains rich Tl+Filtrate, then
Vulcanized sodium is added, precipitates, it is dry, obtain thallium sulfide precipitating (Tl2S)。
Preferably, pH < 1 of waste acid described in step (2).
Preferably, the condition of soaking with sodium hydroxide described in step (1) is the 1mol/L sodium hydroxide with 4 times of volumes
Solution impregnates 40~60min of resin.
Preferably, it is 1~2mol/L salt that the condition of salt acid soak described in step (1), which is with the concentration of 4 times of volumes,
Acid solution impregnates 40~60min of resin.
Preferably, the mass percentage concentration of bromine water described in step (2) is 3%.
Preferably, when the pretreated resin of addition described in step (2), the solid-to-liquid ratio of resin and waste water is 0.005~
0.01g/ml。
Preferably, stirring and adsorbing ReO described in step (2)4 -With when a length of 40~60min of thallium complex anion.
Preferably, in the ammonium hydroxide containing EDTA or DTPA described in step (2), the mass percentage concentration of ammonium hydroxide is 5~
8%.
Preferably, in the ammonium hydroxide containing EDTA or DTPA described in step (2), the mass percentage concentration of EDTA or DTPA are
0.05~0.1%.
Preferably, when ammonium hydroxide of the addition described in step (2) containing EDTA or DTPA, the solid-to-liquid ratio of resin and ammonium hydroxide is 1:
2g/ml。
Preferably, stirring described in step (2) elutes ReO4 -When a length of 30~50min.
Preferably, the temperature of evaporation and concentration described in step (2) is 90 DEG C.
Preferably, it dries described in step (2) and step (3) using vacuum drying.
Preferably, Na described in step (3)2SO3The mass percentage concentration of solution is 0.5~1%.
Preferably, addition Na described in step (3)2SO3When solution, resin and Na2SO3The solid-to-liquid ratio of solution is 1:2g/
ml。
Preferably, stirring described in step (3) elutes Tl+When a length of 30~50min of ion.
Preferably, the amount of vulcanized sodium is added described in step (3) to be added the desired amount of 1.2~1.5 times of theoretical amount
Vulcanized sodium.
In the above method, the Chinese of the DTPA is diethylene triamine pentacetic acid (DTPA), and alias is that second two supports five second of triamine
Acid, diethylene-triamine pentaacetic acid, chemical structural formula are as follows:
In the above method, the Chinese of the EDTA is ethylenediamine tetra-acetic acid, and alias is tetraacethyl diamino-vinyl, support
Vertical dragon, chemical structural formula are as follows:
Since smelting industry acid waste water contains SO4 2-、Cl-Equal anion, the middle complex anion formed of step (2) include
ReO4 -、TlBr4 -、TlBr5 2-、TlBr6 3-、TlCl4 -、Tl(SO4)2 -Equal complex anions；Reducing agent Na is added in step (3)2SO3Mesh
Be the Tl made in resin3+It is reduced into Tl+To destroy trivalent thallium complex anion, thallium is desorbed and is eluted.
The key reaction process of the method for the invention is briefly described below:
1. in acid waste water containing thallium plus bromine water makes Tl+Oxidation is shaped to trivalent thallium complex anion；
Tl+(acid waste water containing thallium)+bromine water → trivalent thallium complex anion (1)
2. RCX-5143 resins exchange adsorbs ReO4 -、TlBr4 -、TlBr5 2-、TlBr6 3-、TlCl4 -、Tl(SO4)2 -Deng yin from
Son；
Resin-Cl-+ rhenium containing the thallium anion → resin-complex anion of rhenium containing thallium+Cl- (2)
3. eluting ReO with the ammonium hydroxide containing EDTA or DTPA4 -, and prevent trivalent thallium from eluting (hydrolysis) under alkaline condition；
Resin-rhenium containing thallium anion+ammonium hydroxide → resin-trivalent thallium complex anion+ReO4 - (3)
Resin-trivalent thallium complex anion after the reaction also includes Tl (EDTA)-Or Tl (DTPA)2-Complex anion.
4. with reducing agent Na2SO3Desorption elution, by the Tl in resin3+It is reduced into Tl+Destroy trivalent thallium complex anion；
Resin-trivalent thallium complex anion+SO3 2-→ resin-SO4 2-+Tl+ (4)
5. richness Tl+Filtrate adds vulcanized sodium, obtains thallium sulfide precipitating；
Tl++S2-→Tl2S↓ (5)
Compared with the prior art, the invention has the following advantages and beneficial effects:
Present invention finds molybdenum-rhenium recycling, dedicated ion exchange resin --- RCX-5143 resin is to trivalent thallium complex anion
Have the function of special selective absorption, using RCX-5143 resin under highly acidity pH < 1 direct adsorbing and extracting dissipated metal thallium
And rhenium, it does not need to use alkali neutralization acidity, raw material is smeltery's acid waste water, and the adsorbent material being added in entire technical process is
Commercially available RCX-5143 resin, not only simple process, inexpensive, and also the rate of recovery of thallium is up to 83.4%~85.7%, rhenium
The rate of recovery is up to 82.2%~86.6%.
Specific embodiment
Below with reference to embodiment, the present invention is described in further detail, and embodiments of the present invention are not limited thereto.
For not specifically specified technological parameter, routine techniques progress can refer to.
Embodiment 1
The present embodiment provides a kind of from the method for smelting recycling thallium and rhenium in waste acid.
Waste acid used comes from certain smeltery, thallium-containing quantity 41mg/L, and rhenium-containing amount is 15mg/L, pH < 1.
1, the recycling of thallium and rhenium
(1) taking 25g granularity is the RCX-5143 resin (commercially available Du sheng, a reed pipe wind instrument RCX-5143 resin) of 100 mesh, with 4 times of volumes
1mol/L sodium hydroxide solution impregnates 40min, is rinsed with water to neutrality, then is soaked with the hydrochloric acid solution of the 1mol/L of 4 times of volumes
40min is steeped, is rinsed with water to neutrality, obtains pretreated resin；
(2) it takes certain smeltery containing thallium and rhenium waste acid 5L, filters out insoluble matter, mass percentage concentration is added dropwise under stirring conditions
For 3% bromine water to orange-yellow, and keep 10min colour-fast, make the monovalence thallium (Tl in waste acid+) fully oxidized and form trivalent
Pretreated CX-5143 resin adsorption ReO is added according to solid-to-liquid ratio 0.005g/ml in thallium complex anion4 -, trivalent thallium complex anion,
40min is stirred, filters and collects resin；
(3) ReO will be adsorbed according to solid-to-liquid ratio 1:2g/ml4 -The quality containing DTPA is added with the resin of trivalent thallium complex anion
The ammonium hydroxide 50ml that percentage concentration is 5% elutes ReO4 -, stir 30min；Wherein the mass percentage concentration of DTPA is 0.05%；
(4) contain ReO4 -Eluent is concentrated by evaporation at 90 DEG C, crystallisation by cooling, and vacuum drying obtains rehenic acid ammonia (NH4ReO4)
0.095g；
(5) elution ReO is collected4 -Resin afterwards, according to solid-to-liquid ratio 1:2g/ml be added mass percentage concentration be 0.5% also
Former agent Na2SO3Solution 100ml is eluted, and richness Tl is formed+Filtrate stirs 30min, filters and collect rich in Tl+Filtrate；
(6) Xiang Fuhan Tl+Filtrate in be added the desired amount of 1.2 times of vulcanized sodium of theoretical amount, precipitating, collect sediment vacuum
It is dry, obtain thallium sulfide precipitating (Tl2S)0.19g。
2, the detection of purity
Use atomic absorption spectrophotometry detect thallium sulfide purity for 97.1%, rhenium is detected to obtain using ICP-MS method
Sour ammonia purity is 98.5%
3, the rate of recovery calculates:
The thallium rate of recovery for being calculated as follows to obtain this example the method is 83.4%, and Rhenium recovery rate is 86.6%.
Indicate: 2Tl or Re atomic weight refers to the atomic weight of 2 Tl or the atomic weight of 1 Re in formula
Embodiment 2
The present embodiment provides a kind of from the method for smelting recycling thallium and rhenium in waste acid.
Waste acid used comes from certain smeltery, thallium-containing quantity 35mg/L, and rhenium-containing amount is 24mg/L, pH < 1.
1, the recycling of thallium and rhenium
(1) taking 30g granularity is the RCX-5143 resin (commercially available Du sheng, a reed pipe wind instrument RCX-5143 resin) of 100 mesh, with 4 times of volumes
1mol/L sodium hydroxide solution impregnates 50min, is rinsed with water to neutrality, then is soaked with the hydrochloric acid solution of the 1mol/L of 4 times of volumes
50min is steeped, is rinsed with water to neutrality, obtains pretreated resin；
(2) it takes certain smeltery containing thallium and rhenium waste acid 5L, filters out insoluble matter, mass percentage concentration is added dropwise under stirring conditions
For 3% bromine water to orange-yellow, and keep 10min colour-fast, make the monovalence thallium (Tl in waste acid+) fully oxidized and form trivalent
Pretreated RCX-5143 resin adsorption ReO is added according to solid-to-liquid ratio 0.006g/ml in thallium complex anion4 -, trivalent thallium with yin from
Son stirs 50min, filters and collect resin；
(3) ReO will be adsorbed according to solid-to-liquid ratio 1:2g/ml4 -The quality containing EDTA is added with the resin of trivalent thallium complex anion
The ammonium hydroxide 60ml that percentage concentration is 6% elutes ReO4 -, stir 40min；Wherein the mass percentage concentration of EDTA is 0.05%；
(4) contain ReO4 -Eluent is concentrated by evaporation at 90 DEG C, crystallisation by cooling, and vacuum drying obtains rehenic acid ammonia (NH4ReO4)
0.15g；
(5) elution ReO is collected4 -Resin afterwards, according to solid-to-liquid ratio 1:2g/ml be added mass percentage concentration be 0.7% also
Former agent Na2SO3Solution 60ml is eluted, and richness Tl is formed+Filtrate stirs 40min, filters and collect rich in Tl+Filtrate；
(6) Xiang Fuhan Tl+Filtrate in be added the desired amount of 1.3 times of vulcanized sodium of theoretical amount, precipitating, collect sediment vacuum
It is dry, obtain thallium sulfide precipitating (Tl2S)0.16g。
2, the detection of purity
Use atomic absorption spectrophotometry detect thallium sulfide purity for 99.3%, rhenium is detected to obtain using ICP-MS method
Sour ammonia purity is 98.3%
3, the rate of recovery calculates:
The thallium rate of recovery that this example the method is calculated by the formula in embodiment 1 is 84.0%, and Rhenium recovery rate is
85.2%.
Embodiment 3
The present embodiment provides a kind of from the method for smelting recycling thallium and rhenium in waste acid.
Waste acid used comes from certain smeltery, thallium-containing quantity 26mg/L, and rhenium-containing amount is 35mg/L, pH < 1.
1, the recycling of thallium and rhenium
(1) taking 40g granularity is the RCX-5143 resin (commercially available Du sheng, a reed pipe wind instrument RCX-5143 resin) of 100 mesh, with 4 times of volumes
1mol/L sodium hydroxide solution impregnates 50min, is rinsed with water to neutrality, then is soaked with the hydrochloric acid solution of the 2mol/L of 4 times of volumes
50min is steeped, is rinsed with water to neutrality, obtains pretreated resin；
(2) it takes certain smeltery containing thallium and rhenium waste acid 5L, filters out insoluble matter, mass percentage concentration is added dropwise under stirring conditions
For 3% bromine water to orange-yellow, and keep 10min colour-fast, make the monovalence thallium (Tl in waste acid+) fully oxidized and form trivalent
Pretreated RCX-5143 resin adsorption ReO is added according to solid-to-liquid ratio 0.008g/ml in thallium complex anion4 -, trivalent thallium with yin from
Son stirs 50min, filters and collect resin；
(3) ReO will be adsorbed according to solid-to-liquid ratio 1:2g/ml4 -The quality containing DTPA is added with the resin of trivalent thallium complex anion
The ammonium hydroxide 80ml that percentage concentration is 7% elutes ReO4 -, stir 50min；Wherein the mass percentage concentration of DTPA is 0.1%；
(4) contain ReO4 -Eluent is concentrated by evaporation at 90 DEG C, crystallisation by cooling, and vacuum drying obtains rehenic acid ammonia (NH4ReO4)
0.22g；
(5) elution ReO is collected4 -Resin afterwards, according to solid-to-liquid ratio 1:2g/ml be added mass percentage concentration be 0.8% also
Former agent Na2SO3Solution 80ml is eluted, and richness Tl is formed+Filtrate stirs 50min, filters and collect rich in Tl+Filtrate；
(6) Xiang Fuhan Tl+Filtrate in be added the desired amount of 1.4 times of vulcanized sodium of theoretical amount, precipitating, collect sediment vacuum
It is dry, obtain thallium sulfide precipitating (Tl2S)0.12g。
2, the detection of purity
Use atomic absorption spectrophotometry detect thallium sulfide purity for 98.1%, rhenium is detected to obtain using ICP-MS method
Sour ammonia purity is 99.1%
3, the rate of recovery calculates:
The thallium rate of recovery that this example the method is calculated by the formula in embodiment 1 is 83.8%, and Rhenium recovery rate is
86.5%.
Embodiment 4
Waste acid used comes from certain smeltery, thallium-containing quantity 32mg/L, and rhenium-containing amount is 43mg/L, pH < 1.
1, the recycling of thallium and rhenium
(1) taking 50g granularity is the RCX-5143 resin (commercially available Du sheng, a reed pipe wind instrument RCX-5143 resin) of 100 mesh, with 4 times of volumes
1mol/L sodium hydroxide solution impregnates 60min, is rinsed with water to neutrality, then is soaked with the hydrochloric acid solution of the 2mol/L of 4 times of volumes
60min is steeped, is rinsed with water to neutrality, obtains pretreated resin；
(2) it takes certain smeltery containing thallium and rhenium waste acid 5L, filters out insoluble matter, mass percentage concentration is added dropwise under stirring conditions
For 3% bromine water to orange-yellow, and keep 10min colour-fast, make the monovalence thallium (Tl in waste acid+) fully oxidized and form trivalent
Pretreated RCX-5143 resin adsorption ReO is added according to solid-to-liquid ratio 0.01g/ml in thallium complex anion4 -, trivalent thallium complex anion,
60min is stirred, filters and collects resin；
(3) ReO will be adsorbed according to solid-to-liquid ratio 1:2g/ml4 -The quality containing EDTA is added with the resin of trivalent thallium complex anion
The ammonium hydroxide 100ml that percentage concentration is 8% elutes ReO4 -, stir 50min；Wherein the mass percentage concentration of EDTA is 0.1%；
(4) contain ReO4 -Eluent is concentrated by evaporation at 90 DEG C, crystallisation by cooling, and vacuum drying obtains rehenic acid ammonia (NH4ReO4)
0.26g；
(5) elution ReO is collected4 -The reduction that mass percentage concentration is 1% is added according to solid-to-liquid ratio 1:2g/ml in resin afterwards
Agent Na2SO3Solution 100ml is eluted, and richness Tl is formed+Filtrate stirs 50min, filters and collect rich in Tl+Filtrate；
(6) Xiang Fuhan Tl+Filtrate in be added the desired amount of 1.5 times of vulcanized sodium of theoretical amount, precipitating, collect sediment vacuum
It is dry, obtain thallium sulfide precipitating (Tl2S)0.15g。
2, the detection of purity
Use atomic absorption spectrophotometry detect thallium sulfide purity for 98.6%, rhenium is detected to obtain using ICP-MS method
Sour ammonia purity is 97.9%
3, the rate of recovery calculates:
The thallium rate of recovery for being calculated as follows to obtain this example the method is 85.7%, and Rhenium recovery rate is 82.2%.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (10)
1. a kind of from the method for smelting recycling thallium and rhenium in waste acid, which comprises the following steps:
(1) pretreatment of resin
It is rinsed with water after RCX-5143 anion exchange resin is impregnated with sodium hydroxide solution to neutrality, then is turned with salt acid soak
Type is chlorine type, is then rinsed with water to neutrality, and pretreated resin is obtained；
(2) recycling of rhenium
It takes smeltery containing thallium and rhenium waste acid, filters out insoluble matter, it is in yellow that bromine water to waste acid is added dropwise under stirring conditions, and is kept
10min is colour-fast, keeps the monovalence thallium in waste acid fully oxidized and forms trivalent thallium complex anion, pretreated resin is added, stirs
Mix absorption ReO4 -With thallium complex anion, resin is collected in filtering, and the ammonium hydroxide containing EDTA or DTPA, stirring elution ReO is added4 -, obtain
To eluent, it is concentrated by evaporation, it is cooling, it is precipitated, it is dry, obtain rehenic acid ammonia；
(3) recycling of thallium
Collect elution ReO4 -Na is added in resin afterwards2SO3Solution, stirring elution Tl+Ion obtains rich Tl+Filtrate adds sulphur
Change sodium, precipitates, it is dry, obtain thallium sulfide precipitating.
2. according to claim 1 from the method for smelting recycling thallium and rhenium in waste acid, it is characterised in that: institute in step (2)
PH < 1 for the waste acid stated.
3. according to claim 1 from the method for smelting recycling thallium and rhenium in waste acid, it is characterised in that:
The condition of soaking with sodium hydroxide described in step (1) is to impregnate tree with the 1mol/L sodium hydroxide solution of 4 times of volumes
40~60min of rouge；
It is that 1~2mol/L hydrochloric acid solution impregnates tree that the condition of salt acid soak described in step (1), which is with the concentration of 4 times of volumes,
40~60min of rouge.
4. according to claim 1 from the method for smelting recycling thallium and rhenium in waste acid, it is characterised in that: institute in step (2)
The mass percentage concentration for the bromine water stated is 3%.
5. according to claim 1 from the method for smelting recycling thallium and rhenium in waste acid, it is characterised in that:
When the pretreated resin of addition described in step (2), the solid-to-liquid ratio of resin and waste water is 0.005~0.01g/ml；
Stirring and adsorbing ReO described in step (2)4 -With when a length of 40~60min of thallium complex anion.
6. according to claim 1 from the method for smelting recycling thallium and rhenium in waste acid, it is characterised in that:
In ammonium hydroxide containing EDTA or DTPA described in step (2), the mass percentage concentration of ammonium hydroxide is 5~8%；
In ammonium hydroxide containing EDTA or DTPA described in step (2), the mass percentage concentration of EDTA or DTPA is 0.05~
0.1%；
When ammonium hydroxide of the addition described in step (2) containing EDTA or DTPA, the solid-to-liquid ratio of resin and ammonium hydroxide is 1:2g/ml；
Stirring described in step (2) elutes ReO4 -When a length of 40~60min.
7. according to claim 1 from the method for smelting recycling thallium and rhenium in waste acid, it is characterised in that: institute in step (2)
The temperature for the evaporation and concentration stated is 90 DEG C.
8. according to claim 1 from the method for smelting recycling thallium and rhenium in waste acid, it is characterised in that:
Na described in step (3)2SO3The mass percentage concentration of solution is 0.5~1%；
Addition Na described in step (3)2SO3When solution, resin and Na2SO3The solid-to-liquid ratio of solution is 1:2g/ml；
Stirring described in step (3) elutes Tl+When a length of 30~40min of ion.
9. according to claim 1 from the method for smelting recycling thallium and rhenium in waste acid, it is characterised in that: institute in step (3)
The amount for adding vulcanized sodium stated is that the desired amount of 1.2~1.5 times of vulcanized sodium of theoretical amount is added.
10. according to claim 1 from the method for smelting recycling thallium and rhenium in waste acid, it is characterised in that: step (2) and step
Suddenly dry using vacuum drying described in (3).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110672587A (en) * | 2019-09-25 | 2020-01-10 | 广西金川有色金属有限公司 | Method for rapidly determining rhenium in chemical industry rhenium precipitation slag |
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