CN108588445A - A method of refining lithium using the continuously extruded Rapid Leaching from flyash of screw rod - Google Patents
A method of refining lithium using the continuously extruded Rapid Leaching from flyash of screw rod Download PDFInfo
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- CN108588445A CN108588445A CN201810347794.7A CN201810347794A CN108588445A CN 108588445 A CN108588445 A CN 108588445A CN 201810347794 A CN201810347794 A CN 201810347794A CN 108588445 A CN108588445 A CN 108588445A
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- lithium
- flyash
- adsorbent
- leachate
- screw extruder
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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
- C22B26/12—Obtaining lithium
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D15/00—Lithium compounds
- C01D15/08—Carbonates; Bicarbonates
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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
- C22B7/008—Wet processes by an alkaline or ammoniacal 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
- 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
- C22B7/02—Working-up flue dust
-
- 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 invention belongs to field of lithium, provide a kind of method for refining lithium using the continuously extruded Rapid Leaching from flyash of screw rod, lye is uniformly mixed with flyash, is sent into the first rank screw extruder, so that the lithium ion in flyash is leached using the shearing of screw extruder, extruding；Obtained leachate continuously enters second-order screw extruder, leachate is set fully to be combined with adsorbent under gel auxiliary, leachate and adsorbent are not only sheared between mixing pins and irregular knead block but also by reciprocal transportations, and countercurrent movement adds highly useful axial backmixing movement to radial mixing, realize in leachate lithium by adsorbent the quick adsorption in transmission process；Adsorbent is continuously introduced into third rank screw extruder after being detached with leachate, and acid solution is added, and adsorbent is made to desorb；Stripping liquid is inputted into sedimentation basin, sodium carbonate precipitation, filtering, cleaning, drying is added, obtains high-purity lithium carbonate.
Description
Technical field
The invention belongs to field of lithium, and in particular to a kind of to be carried using the continuously extruded Rapid Leaching from flyash of screw rod
The method for refining lithium.
Background technology
Lithium battery is one kind using lithium metal or lithium alloy as negative material, using the one-shot battery of non-aqueous electrolytic solution,
With lithium ion polymer battery it is different with rechargeable battery lithium ion battery.The inventor of lithium battery is Edison.By
It is very active in the chemical characteristic of lithium metal so that processing, preservation, the use of lithium metal, it is very high to environmental requirement.So
Lithium battery is not applied for a long time.With the development of twentieth century end microelectric technique, the equipment of miniaturization is increasing, right
Power supply proposes very high requirement.Lithium battery enters the large-scale practical stage therewith.
Lithium ion battery and traditional accumulator are comparatively, not only energy higher, and discharge capability is stronger, and cycle life is more
It is long, and its energy storage efficiency can be more than 90%, and the above feature determines lithium ion battery in sides such as electric vehicle, storage power supplys
The great development prospect in face.Determine that the key of lithium-ion-power cell cost and performance is material, the material of lithium-ion-power cell
Material determines the development course and operational mode of electric vehicle.Therefore, the bottleneck problem of lithium-ion-power cell is broken through, key exists
In the solution of problem of materials.
Lithium is the critical materials for producing serondary lithium battery.With the fast development of consumption electronic product, new-energy automobile, entirely
Ball rapidly increases the demand of lithium, and traditional lithium ore has been no longer limited to for the utilization of lithium resource.It finds and effective
Using containing lithium resource to maintain lithium battery sustainable development it is most important.
Waste of the flyash as power plant, discharge capacity are big.The comprehensive utilization of flyash is to realize flyash high added value
The key utilized.Currently reported, the elements such as higher aluminium, silicon in flyash are used to prepare aluminium chloride and white carbon etc..Together
When, containing trace elements such as lithium, vanadium, nickel, platinum, barium in flyash, there is high utility value.With Chinese energy industry
It continues to develop so that the research neck that the energy metallic element such as micro lithium, vanadium, nickel becomes interesting is extracted from flyash
Domain.Currently, the method for extracting lithium category element from flyash, which mainly has, leaches absorption method, calcining precipitation method etc..But it is limited to fine coal
Lithium content is low in ash, it is difficult to leach, refine the extremely inefficient of lithium.
Invention content
The object of the present invention is to provide a kind of method for refining lithium using the continuously extruded Rapid Leaching from flyash of screw rod,
Lye is uniformly mixed with flyash, is sent into the first rank screw extruder, makes flyash using the shearing of screw extruder, extruding
In lithium ion leach, the first rank screw extruder rear end be arranged filter-pressing device, leachate is detached with powdered coal cinder press filtration；
Obtained leachate continuously enters second-order screw extruder, and second-order screw extruder is Reciprocating Pin Twin-Screw Extruder,
Gel aluminum hydroxide and lithium adsorbent is added, sets mixing screw block in Reciprocating Pin Twin-Screw Extruder, gap is corresponding with, in machine barrel
On neck bush, three row's mixing pins are arranged with, screw rod does axial reciprocating motion during radial rotary, this spy
Different motion mode makes leachate fully be combined with adsorbent under gel auxiliary, and leachate is not only being kneaded pin with adsorbent
It is sheared between nail and irregular knead block and by reciprocal transportation, and countercurrent movement adds very to radial mixing
Useful axial backmixing movement, realize in leachate lithium by adsorbent the quick adsorption in transmission process；Adsorbent and leaching
It is continuously introduced into third rank screw extruder after liquid separation, and acid solution is added, adsorbent is made to desorb；Stripping liquid is inputted into sedimentation basin,
Sodium carbonate precipitation, filtering, cleaning, drying is added, obtains high-purity lithium carbonate.
Specific technical solution of the present invention is as follows：
A method of lithium being refined using the continuously extruded Rapid Leaching from flyash of screw rod, is included the following steps：
S01：Lye is uniformly mixed with flyash, is sent into the first rank screw extruder, using the shearing of screw extruder, is squeezed
The lithium ion in flyash is set to leach to form leachate；
S02：Leachate is detached with powdered coal cinder press filtration；Obtained leachate continuously enters second-order screw extruder, is added
Gel aluminum hydroxide and lithium adsorbent set mixing screw block in Reciprocating Pin Twin-Screw Extruder, gap are corresponding with, in cylinder liner
It puts on, is arranged with three row's mixing pins, screw rod does axial reciprocating motion during radial rotary, and leachate is made to exist
Gel auxiliary is lower fully to be combined with adsorbent；
S03：Adsorbent is continuously introduced into third rank screw extruder after being detached with leachate, and acid solution is added, and adsorbent is made to desorb
Obtain stripping liquid；Stripping liquid is inputted into sedimentation basin, sodium carbonate is added, through precipitation, filtering, cleans, be dried to obtain lithium carbonate.
For the existing lithium that refined from flyash using the low defect of the direct leaching efficiency of lye, the present invention is by lye and powder
Coal ash is uniformly mixed, and is sent into the first rank screw extruder, using the shearing of screw extruder, squeezes the lithium ion made in flyash
It leaches.
Preferably, the first rank screw extruder selects the unidirectional double screw extruder with high shear function to go out machine or conical screw
Extruder；Further preferred parallel dual-screw extruding machine.
In order to detach leachate with powdered coal cinder press filtration, filter-pressing device is set in the first rank screw extruder rear end, it will
Leachate is detached with powdered coal cinder press filtration；Obtained leachate continuously enters second-order screw extruder, second-order Screw Extrusion
Machine is Reciprocating Pin Twin-Screw Extruder, and gel aluminum hydroxide and lithium adsorbent, which is added, in second-order screw extruder makes itself and leaching
Go out liquid to be uniformly mixed, in order to preferably be mixed uniformly, mixing screw block set in above-mentioned Reciprocating Pin Twin-Screw Extruder,
It is corresponding with gap, on cylinder liner set, is arranged with three row's mixing pins, screw rod does axial direction during radial rotary
Reciprocating motion, this special motion mode makes leachate fully be combined with adsorbent under gel auxiliary, leachate with inhale
Attached dose is not only sheared between mixing pins and irregular knead block but also by reciprocal transportation, but also countercurrent movement is to diameter
Highly useful axial backmixing is added to mixing to move, and is realized lithium in leachate and is quickly inhaled in transmission process by adsorbent
It is attached.
Adsorbent is continuously introduced into third rank screw extruder, the third rank Screw Extrusion in the present invention after being detached with leachate
Machine selects conical screw machine, and acid solution is added, and adsorbent is made to desorb；Stripping liquid is inputted into sedimentation basin, excessive sodium carbonate is added
Precipitation, filtering, cleaning, drying, obtain high-purity lithium carbonate.
The present invention refines the efficiency of lithium in order to be promoted from flyash, is filled using three rank screw extruders as successive reaction
It sets, continuous high-efficient leaching, the Adsorption and desorption concentration of lithium in flyash is realized by the shear extrusion of screw rod, mixing mixing, is
Low cost, serialization refine lithium from flyash and provide a preferable technological approaches.
As a further improvement on the present invention, described by lye is ammonium hydroxide, sodium hydroxide, a kind of water in potassium hydroxide
Solution uses saturated solution as far as possible in order to preferably leach lithium.
As a further improvement on the present invention, the mixing quality of the lye and flyash ratio is（1-3）:1.
As a further improvement on the present invention, the lithium adsorbent is λ-MnO2Ion sieve has excellent choosing to lithium
Adsorptivity is selected, is further assisted by gel aluminum hydroxide, absorptive collection lithium ability substantially enhances.
As further selection, the mass ratio of leachate and gel aluminum hydroxide, adsorbent is：100:3:10.
As a further improvement on the present invention, the acid solution is nitric acid or oxalic acid.
Compared with prior art, the present invention the feature and excellent effect of its protrusion are：The present invention is in order to be promoted from powder
The efficiency that lithium is refined in coal ash by the shear extrusion of screw rod, is kneaded using three rank screw extruders as continuous reaction apparatus
The continuous high-efficient that mixing realizes lithium in flyash leaches, Adsorption and desorption concentrates, and is carried from flyash for low cost, serialization
Refining lithium provides a preferable technological approaches.
Specific implementation mode
In the following, the present invention will be further described in detail by way of specific embodiments, but this should not be interpreted as to the present invention
Range be only limitted to example below.Without departing from the idea of the above method of the present invention, according to ordinary skill
The various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
A method of lithium being refined using the continuously extruded Rapid Leaching from flyash of screw rod, by potassium hydroxide solution and flyash
By 1:1 volume ratio is uniformly mixed, and is sent into 65 type parallel dual-screw extruding machine of the first rank, and rotating speed 50rpm utilizes Screw Extrusion
Shearing, the extruding of machine make the lithium ion in flyash leach, and filter-pressing device is arranged in the first rank screw extruder rear end, will leach
Liquid is detached with powdered coal cinder press filtration；Obtained leachate continuously enters second-order Reciprocating Pin Twin-Screw Extruder, and hydrogen-oxygen is added
Change alumina gel and lithium adsorbent λ-MnO2, the mass ratio of leachate and gel aluminum hydroxide, adsorbent are：100:3:10, back and forth
Mixing screw block is set in formula screw pin extruder, is corresponding with gap, on cylinder liner set, is arranged with three row's mixing pins, spiral shell
Bar does axial reciprocating motion during radial rotary, and leachate is made fully to be combined with adsorbent under gel auxiliary,
Realize in leachate lithium by adsorbent the quick adsorption in transmission process；Adsorbent is continuously introduced into third after being detached with leachate
Rank conical screw machine, and excess nitric acid is added, so that adsorbent is desorbed；Stripping liquid is inputted into sedimentation basin, it is heavy that excess of sodium carbonate is added
It forms sediment, filtering, cleans, is dry, obtain high-purity lithium carbonate.
Embodiment 2
A method of lithium being refined using the continuously extruded Rapid Leaching from flyash of screw rod, caustic lye of soda and flyash are pressed
3:1 mass ratio is uniformly mixed, and is sent into the first rank conical screw extruder, and rotating speed 100rpm utilizes cutting for screw extruder
It cuts, squeeze the lithium ion in flyash is made to leach, filter-pressing device is set in the first rank conical screw extruder rear end, by leachate
It is detached with powdered coal cinder press filtration；Obtained leachate continuously enters second-order Reciprocating Pin Twin-Screw Extruder, and hydroxide is added
Alumina gel and lithium adsorbent λ-MnO2, the mass ratio of leachate and gel aluminum hydroxide, adsorbent are：100:3:10, it is reciprocating
Mixing screw block is set in screw pin extruder, is corresponding with gap, on cylinder liner set, is arranged with three row's mixing pins, screw rod
During radial rotary, while axial reciprocating motion is done, leachate is made fully to be combined with adsorbent under gel auxiliary, it is real
Showed in leachate lithium by adsorbent the quick adsorption in transmission process；Adsorbent is continuously introduced into third rank after being detached with leachate
Conical screw machine, and nitric acid is added, so that adsorbent is desorbed；Stripping liquid is inputted into sedimentation basin, sodium carbonate precipitation is added, filters, is clear
It washes, dry, obtain high-purity lithium carbonate.
Embodiment 3
A method of lithium being refined using the continuously extruded Rapid Leaching from flyash of screw rod, ammonium hydroxide and flyash are pressed 1:1
Mass ratio is uniformly mixed, and is sent into 58 type parallel dual-screw extruding machine of the first rank, and rotating speed 150rpm utilizes cutting for screw extruder
It cuts, squeeze the lithium ion in flyash is made to leach, filter-pressing device is set in the first rank screw extruder rear end, by leachate and powder
Coal ash press filtration detaches；Obtained leachate continuously enters second-order Reciprocating Pin Twin-Screw Extruder, and it is solidifying that aluminium hydroxide is added
Glue and lithium adsorbent λ-MnO2, the mass ratio of leachate and gel aluminum hydroxide, adsorbent are：100:3:10, reciprocating pin
Mixing screw block is set in screw extruder, is corresponding with gap, on cylinder liner set, is arranged with three row's mixing pins, screw rod is in diameter
Into rotary course, while axial reciprocating motion is done, so that leachate is fully combined with adsorbent under gel auxiliary, realize
In leachate lithium by adsorbent the quick adsorption in transmission process；Adsorbent is continuously introduced into third rank taper after being detached with leachate
Screw machine, and nitric acid is added, so that adsorbent is desorbed；Stripping liquid is inputted into sedimentation basin, sodium carbonate precipitation is added, filtering, cleaning, does
It is dry, obtain high-purity lithium carbonate.
Embodiment 4
A method of lithium being refined using the continuously extruded Rapid Leaching from flyash of screw rod, ammonium hydroxide and flyash are pressed 2:1
Mass ratio is uniformly mixed, and is sent into the first rank conical screw extruder, and rotating speed 150rpm using the shearing of screw extruder, is squeezed
Pressure makes the lithium ion in flyash leach, and filter-pressing device is arranged in the first rank conical screw extruder rear end, by leachate and powder
Coal ash press filtration detaches；Obtained leachate continuously enters second-order Reciprocating Pin Twin-Screw Extruder, and it is solidifying that aluminium hydroxide is added
Glue and lithium adsorbent λ-MnO2, the mass ratio of leachate and gel aluminum hydroxide, adsorbent are：100:3:10, reciprocating pin
Mixing screw block is set in screw extruder, is corresponding with gap, on cylinder liner set, is arranged with three row's mixing pins, screw rod is in diameter
Into rotary course, while axial reciprocating motion is done, so that leachate is fully combined with adsorbent under gel auxiliary, realize
In leachate lithium by adsorbent the quick adsorption in transmission process；Adsorbent is continuously introduced into third rank taper after being detached with leachate
Screw machine, and oxalic acid is added, so that adsorbent is desorbed；Stripping liquid is inputted into sedimentation basin, sodium carbonate precipitation is added, filtering, cleaning, does
It is dry, obtain high-purity lithium carbonate.
Comparative example 1
A method of lithium being refined using the continuously extruded Rapid Leaching from flyash of screw rod, caustic lye of soda and flyash are pressed
3:1 mass ratio is uniformly mixed, and is sent into the first rank conical screw extruder, and rotating speed 150rpm utilizes cutting for screw extruder
It cuts, squeeze the lithium ion in flyash is made to leach, filter-pressing device is set in the first rank conical screw extruder rear end, by leachate
It is detached with powdered coal cinder press filtration；Gel aluminum hydroxide and lithium adsorbent λ-MnO2, leachate and hydrogen-oxygen is added in obtained leachate
Change alumina gel, the mass ratio of adsorbent is：100:3:10, so that leachate is fully combined with adsorbent under gel auxiliary, adsorbs
Agent detaches addition nitric acid with leachate, and adsorbent is made to desorb；Stripping liquid is inputted into sedimentation basin, sodium carbonate precipitation is added, filters, is clear
It washes, dry, obtain high-purity lithium carbonate.
Comparative example 2
A method of lithium being refined using the continuously extruded Rapid Leaching from flyash of screw rod, caustic lye of soda and flyash are pressed
3:1 mass ratio is uniformly mixed, so that the lithium ion in flyash is leached, obtained leachate continuously enters reciprocating pin oncomelania
Gel aluminum hydroxide and metatitanic acid type lithium adsorbent, the quality of leachate and gel aluminum hydroxide, adsorbent is added in bar extruder
Than for：100:3:10, mixing screw block is set in Reciprocating Pin Twin-Screw Extruder, is corresponding with gap, on cylinder liner set, arrangement
There are three row's mixing pins, screw rod does axial reciprocating motion during radial rotary, makes leachate under gel auxiliary
Fully combined with adsorbent, realize in leachate lithium by adsorbent the quick adsorption in transmission process；Adsorbent and leachate
It is continuously introduced into conical screw machine after separation, and nitric acid is added, adsorbent is made to desorb；Stripping liquid is inputted into sedimentation basin, carbonic acid is added
Sodium precipitation, filtering, cleaning, drying, obtain high-purity lithium carbonate.
Embodiment 1-4, comparative example 1-2 carry out proposing lithium comparison to same a collection of flyash, compare and put forward lithium effect（Lithium carbonate m/ powder
Coal ash m × 100%）With production lithium ability, as shown in table 1.
Table 1：
| Put forward lithium rate（%） | Produce lithium ability（Production lithium carbonate kg per hour） | |
| Embodiment 1 | 0.009 | 0.32 |
| Embodiment 2 | 0.010 | 0.22 |
| Embodiment 3 | 0.015 | 0.18 |
| Embodiment 4 | 0.008 | 0.15 |
| Comparative example 1 | 0.003 | 0.01 |
| Comparative example 2 | 0.002 | 0.03 |
By being analyzed from coal ash lifting lithium, comparative example 1 is not adsorbed using reciprocating screw machine repeatedly, and adsorbance is caused to reduce, cannot
Lithium is fully adsorbed, production capacity is low；Comparative example 2 does not use screw extruder to leach so that and the lithium in flyash cannot be leached effectively,
It causes to propose the reduction of lithium rate.Therefore, the present invention effectively promotes the efficiency that lithium is refined from flyash, is made using three rank screw extruders
For continuous reaction apparatus, the continuous high-efficient that lithium in flyash is realized by the shear extrusion of screw rod, mixing mixing is leached, is inhaled
Attached, desorption concentration, refines lithium from flyash and provides a preferable technological approaches for low cost, serialization.
Claims (7)
1. a kind of method for refining lithium using the continuously extruded Rapid Leaching from flyash of screw rod, it is characterised in that including following step
Suddenly：
S01：Lye is uniformly mixed with flyash, is sent into the first rank screw extruder, using the shearing of screw extruder, is squeezed
The lithium ion in flyash is set to leach to form leachate；
S02：Leachate is detached with powdered coal cinder press filtration；Obtained leachate continuously enters second-order screw extruder, is added
Gel aluminum hydroxide and lithium adsorbent set mixing screw block in Reciprocating Pin Twin-Screw Extruder, gap are corresponding with, in cylinder liner
It puts on, is arranged with three row's mixing pins, screw rod does axial reciprocating motion during radial rotary, and leachate is made to exist
Gel auxiliary is lower fully to be combined with adsorbent；
S03：Adsorbent is continuously introduced into third rank screw extruder after being detached with leachate, and acid solution is added, and adsorbent is made to desorb
Obtain stripping liquid；Stripping liquid is inputted into sedimentation basin, sodium carbonate is added, through precipitation, filtering, cleans, be dried to obtain lithium carbonate.
2. a kind of method for refining lithium using the continuously extruded Rapid Leaching from flyash of screw rod according to claim 1,
It is characterized in that：Described by lye is ammonium hydroxide, sodium hydroxide, a kind of aqueous solution in potassium hydroxide.
3. a kind of method for refining lithium using the continuously extruded Rapid Leaching from flyash of screw rod according to claim 1,
It is characterized in that：The mixing quality of the lye and flyash ratio is（1-3）:1.
4. a kind of method for refining lithium using the continuously extruded Rapid Leaching from flyash of screw rod according to claim 1,
It is characterized in that：The lithium adsorbent is λ-MnO2Ion sieve；The mass ratio of leachate and gel aluminum hydroxide, adsorbent is：
100:3:10。
5. a kind of method for refining lithium using the continuously extruded Rapid Leaching from flyash of screw rod according to claim 1,
It is characterized in that：The acid solution is nitric acid or oxalic acid.
6. a kind of method for refining lithium using the continuously extruded Rapid Leaching from flyash of screw rod according to claim 1,
It is characterized in that：The first rank screw extruder is that parallel dual-screw extruding machine or conical screw machine go out machine.
7. a kind of method for refining lithium using the continuously extruded Rapid Leaching from flyash of screw rod according to claim 1,
It is characterized in that：The third rank screw extruder is conical screw machine.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810347794.7A CN108588445A (en) | 2018-04-18 | 2018-04-18 | A method of refining lithium using the continuously extruded Rapid Leaching from flyash of screw rod |
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| CN201810347794.7A CN108588445A (en) | 2018-04-18 | 2018-04-18 | A method of refining lithium using the continuously extruded Rapid Leaching from flyash of screw rod |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110643832A (en) * | 2019-11-05 | 2020-01-03 | 广西中煤地质有限责任公司 | Method for extracting lithium from fly ash |
| CN112593097A (en) * | 2020-12-02 | 2021-04-02 | 攀钢集团研究院有限公司 | Continuous leaching vanadium extraction method for vanadium slag calcified clinker |
-
2018
- 2018-04-18 CN CN201810347794.7A patent/CN108588445A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110643832A (en) * | 2019-11-05 | 2020-01-03 | 广西中煤地质有限责任公司 | Method for extracting lithium from fly ash |
| CN112593097A (en) * | 2020-12-02 | 2021-04-02 | 攀钢集团研究院有限公司 | Continuous leaching vanadium extraction method for vanadium slag calcified clinker |
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