CN108144947A - The retracting device and method of a kind of thorium - Google Patents
The retracting device and method of a kind of thorium Download PDFInfo
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- CN108144947A CN108144947A CN201711247520.2A CN201711247520A CN108144947A CN 108144947 A CN108144947 A CN 108144947A CN 201711247520 A CN201711247520 A CN 201711247520A CN 108144947 A CN108144947 A CN 108144947A
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/04—Solvent extraction of solutions which are liquid
- B01D11/0446—Juxtaposition of mixers-settlers
- B01D11/0457—Juxtaposition of mixers-settlers comprising rotating mechanisms, e.g. mixers, mixing pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- 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
- C22B60/00—Obtaining metals of atomic number 87 or higher, i.e. radioactive metals
- C22B60/02—Obtaining thorium, uranium, or other actinides
- C22B60/0291—Obtaining thorium, uranium, or other actinides obtaining thorium
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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
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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
A kind of retracting device of thorium, including crusher, screening machine, acidleach pond, regulating reservoir, adsorption tank, dissolving tank and abstraction pool.Acidleach pond includes acidleach stirring area and acid dipping separation area, and acidleach stirring area bottom is equipped with acid solution import, acid solution import connection acid solution addition metering system.Rare earth waste addition metering system is provided on acidleach stirring area top；Regulating reservoir is provided with lye addition metering system and regulating reservoir blender.Adsorption tank includes absorption mixed zone and adsorption precipitation area, and absorption mixed zone is equipped with adsorbent addition metering system and adsorption tank blender.Dissolving tank is equipped with lysate add-on system, heater, dissolving tank blender and dissolving tank outlet.Abstraction pool includes extraction stirring area and extraction and separation area, it extracts stirring area bottom and is equipped with abstraction pool import, it extracts stirring area middle and lower part and is equipped with extract liquor addition metering system, the middle and upper part in extraction and separation area is exported equipped with upper light liquid, and the lower part in extraction and separation area is equipped with lower heavy liquid exit.
Description
Technical field
The present invention relates to Solid Waste Treatment technical fields, and in particular to the retracting device and method of a kind of thorium.
Background technology
In recent years, with the increasingly increase of rare-earth products demand, rare earth mining, smelting industry have obtained rapidly sending out
Exhibition, still, the process problem of a large amount of rare earth wastes come therewith can not be ignored.It is natural due to being usually associated in rare-earth mineral
Radioactive element thorium, so in the technical process of Extraction of rare eart, the structure of mineral is destroyed, part natural radioactive element
It will be transferred in rare earth waste, become radioactive pollutant, health is generated and is directly endangered.It can be seen that rare earth gives up
Slag is environmentally safe, and there are larger hidden danger, and there is an urgent need to seek a kind of appropriate method of disposal to post-process it.
Rare earth waste is mainly with the following method handled it：(1) it packs, accumulate, if rare earth waste is put
Penetrating property intensity is relatively low, then used pack luggage is good, and stacking is stored in build in the special warehouse in remote mountain area wilderness, so as to really
It is free from environmental pollution to protect its, reaches safety and the hygienic requirements of national regulation.(2) it is recycled after being chemically treated, for can
The emissive industrial waste residue of processing if the content of thorium is higher, after being leached with acid, then recycles thorium from leachate, so as to
The rare-earth products such as thorium nitrate can be produced, increase additional economic income, and reduce the harm of thorium.
Nowadays, China's low-activity waste residue disposal actuality integrally causes anxiety.Some Enterprises pay little attention to waste residue management, lack
Weary effective regulatory measure and measure, waste residue transfer and processing do not arrive environmental protection administration and handle any formality：Meanwhile some enterprises give up
Slag keeps in storage capacity and can not meet practical storage needs, and there are larger Environmental security hidden danger.In the long run, it relies solely on
Low-activity waste residue disposal site come store rare earth waste be it is inadequate, it is main the problem of include：Processing approach is single, and capacity has
Limit；Store costly, enterprise is difficult to receive, and low-activity waste residue disposal site postoperative monitoring period is long, maintenance management heavy workload.Therefore,
How the minimizing of rare earth waste and innoxious realized by chemical treatment, the resources such as recycling thorium have a very important significance.
Invention content
The technical problem to be solved by the present invention is to：In order to solve above-mentioned rare earth waste processing and profit be recycled from rare earth waste
The problem of with thorium resources, the present invention provide a kind of retracting device and method of thorium.
The technical solution adopted by the present invention to solve the technical problems is：A kind of retracting device of thorium, including crusher, sieve
Select machine, acidleach pond, regulating reservoir, adsorption tank, dissolving tank and abstraction pool.
The crusher carries out break process to rare earth waste.
The screening machine carries out Screening Treatment to broken rare earth waste.
The acidleach pond includes acidleach stirring area and acid dipping separation area, and acidleach stirring area bottom is equipped with acid solution import, acid
Liquid import connection acid solution addition metering system；Rare earth waste addition metering system is provided on acidleach stirring area top；In acidleach
Acidleach pond blender is provided in the middle part of stirring area；Folded plate, the folded plate and the inner wall shape in acidleach pond are equipped in the acid dipping separation area
Resulting mixture runner, the exit in acid dipping separation area are equipped with acidleach pond three phase separator, and the outlet top in acid dipping separation area is equipped with
Acidleach pond downflow weir, acidleach pond downflow weir connection regulating reservoir water inlet pipe；Acid dipping separation area bottom is designed to pyramidal structure, in taper
Structural base is provided with acidleach pond drain valve.
The regulating reservoir includes regulating reservoir water inlet pipe and regulating reservoir pond outlet pipe, and regulating reservoir outlet pipe is intake with adsorption tank
Pipe connects, and lye addition metering system is provided in the middle part of regulating reservoir, the middle and lower part of regulating reservoir is provided with regulating reservoir blender.
The adsorption tank includes absorption mixed zone and adsorption precipitation area, and absorption mixed zone bottom intakes equipped with adsorption tank
Pipe, absorption mixed zone middle and upper part are equipped with adsorbent and add metering system, and adsorption tank blender is provided in the middle part of absorption mixed zone；
Baffle is equipped in adsorption precipitation area, as runner, the exit in adsorption precipitation area is equipped with for the inner wall formation of the baffle and adsorption tank
Adsorption tank three phase separator, the outlet top in adsorption precipitation area are equipped with adsorption tank downflow weir, and adsorption precipitation area bottom is designed to bore
Shape structure is provided with adsorption tank drain valve in adsorption precipitation area bottom.
The manufacturing process of adsorbent of adsorbent addition metering system addition is：
1. formalin is poured into reaction kettle, it is stirred using blender；
2. adding in lye into reaction kettle, it is stirred, adjusts the pH to 7.5~8.0 of mixed liquor；
3. adding in urea into reaction kettle, it is stirred；
4. heating up to reaction kettle, when temperature reaches 35~40 DEG C and 60~65 DEG C, 10~15min is kept the temperature respectively,
It is warming up to 90~95 DEG C later, 60~70min of sustained response；
5. adjusting the pH of mixed liquor to 4.O~4.5, the reaction was continued under conditions of it is made to be 90~95 DEG C in bath temperature 60
~70min；
6. the pH for adjusting mixed liquor is 6.0~6.5, urea is added in, is stirred；
7. carrying out being cooled to 80~85 DEG C to reaction kettle, 30min is kept the temperature, is cooled to room temperature, discharges, adsorbent is made.
The dissolving tank is equipped with lysate add-on system, heater, dissolving tank blender and dissolving tank outlet, dissolving tank
Outlet and abstraction pool inlet communication.
The abstraction pool includes extraction stirring area and extraction and separation area, and extraction stirring area bottom is equipped with abstraction pool import,
It extracts stirring area middle and lower part and is equipped with extract liquor addition metering system, abstraction pool blender is provided in the middle part of extraction stirring area；Extraction
It takes and extraction isolation board is equipped between stirring area and extraction and separation area, water stream channel, extraction and separation area are equipped in the middle part of extraction isolation board
Middle and upper part exported equipped with upper light liquid, the lower part in extraction and separation area is equipped with lower heavy liquid exit.
The method for carrying out thorium recovery processing using the retracting device of above-mentioned thorium, has following steps：
1. crusher, to rare earth waste break process, broken rare earth waste crosses the sieve of 60~100 mesh, collect by 60
The rare earth waste of~100 mesh sieve.
2. acid solution enters acidleach stirring area, rare earth waste addition metering system addition rare earth waste, acid by acid solution import
Soaking pit blender is stirred solid-liquid mixture.Then solid-liquid mixture enters acid dipping separation area, acidleach pond three phase separator
Realize separation of solid and liquid；Sediment sinks to the lower part in acid dipping separation area under gravity, is discharged by the acidleach pond of bottom
Valve is discharged；Liquid enters regulating reservoir water inlet pipe by acidleach pond downflow weir.
3. liquid enters regulating reservoir by regulating reservoir water inlet pipe, lye addition metering system addition sodium hydroxide solution is adjusted
The pH value of liquid is saved, regulating reservoir blender is stirred liquid mixing.
4. the liquid after adjusting enters adsorption tank by adsorption tank water inlet pipe, the suction with carrying out self-absorbent addition metering system
Attached dose of mixing, is stirred using adsorption tank blender；Mixture after adsorption reaction enters adsorption precipitation area, adsorption tank three-phase
Separator realizes separation of solid and liquid；Adsorbent sinks to the lower part in adsorption precipitation area under gravity, passes through the absorption of bottom
Pond drain valve discharge；Liquid is flowed out by adsorption tank downflow weir, is further processed.
5. the adsorbent of adsorption tank drain valve discharge enters dissolving tank, lysate add-on system addition lysate, heater
Heated, dissolving tank blender is stirred, and adsorbent is dissolved into lysate, then mixed liquor by dissolving tank export into
Enter abstraction pool.
6. the mixed liquor from dissolving tank enters the extraction stirring area of abstraction pool, mixed with extract liquor, abstraction pool blender
It is stirred, then mixture enters extraction and separation area, and the small liquid of proportion is flowed out by the outlet of upper light liquid, is further processed,
Heavy liquid is flowed out by lower heavy liquid exit, is further processed.
Description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the structure diagram in acidleach of embodiment of the present invention pond.
In Fig. 1：1. acidleach pond, 1-1. acidleach stirring area, 1-2. acid dipping separations area, 1-3. acid solution imports, 1-4. acid solutions add
Add metering system, 1-5. rare earth wastes addition metering system, 1-6. acidleach pond blender, 1-7. acidleach pond three phase separator, 1-
8. acidleach pond downflow weir, 1-9. acidleach pond drain valve.
Fig. 2 is the structure diagram of regulating reservoir of the embodiment of the present invention.
In Fig. 2：2. regulating reservoir, 2-1. regulating reservoir water inlet pipes, 2-2. regulating reservoir outlet pipes, 2-3. lye addition metering system
System, 2-4. regulating reservoir blenders.
Fig. 3 is the structure diagram of adsorption tank of the embodiment of the present invention.
In Fig. 3：3. adsorption tank, 3-1. absorption mixed zone, 3-2. adsorption precipitations area, 3-3. adsorption tank water inlet pipes, 3-4. inhale
Attached dose of addition metering system, 3-5. adsorption tank blenders, 3-6. baffles, 3-7. adsorption tank three phase separators, 3-8. adsorption tanks overflow
Flow weir, 3-9. adsorption tank drain valves.
Fig. 4 is the structure diagram of dissolving tank of the embodiment of the present invention.
In Fig. 4：4. dissolving tank, 4-1. lysate add-on systems, 4-2. heaters, 4-3. dissolving tank blenders, 4-4. are molten
Xie Chi is exported.
Fig. 5 is the structure diagram of abstraction pool of the embodiment of the present invention.
In Fig. 5：5. abstraction pool, 5-1. extractions stirring area, 5-2. extraction and separation area, 5-3. abstraction pool imports, 5-4. extractions
Liquid adds metering system, 5-5. abstraction pool blenders, and the upper light liquids of 5-6. export, heavy liquid exit under 5-7..
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows composition related to the present invention.
Embodiment
The technical solution adopted by the present invention to solve the technical problems is：A kind of retracting device of thorium, including crusher, sieve
Select machine, acidleach pond 1, regulating reservoir 2, adsorption tank 3, dissolving tank 4 and abstraction pool 5.
The crusher carries out break process to rare earth waste.
The screening machine carries out Screening Treatment to broken rare earth waste.
The acidleach pond 1 includes acidleach stirring area 1-1 and acid dipping separation area 1-2, and acidleach stirring area 1-1 bottoms are equipped with acid
Liquid import 1-3, acid solution import connection acid solution addition metering system 1-4；Rare earth waste addition is provided on acidleach stirring area top
Metering system 1-5；Acidleach pond blender 1-6 is provided in the middle part of acidleach stirring area；Folded plate, the folded plate are equipped in acid dipping separation area
Mixture runner is formed with the inner wall in acidleach pond, the exit in acid dipping separation area is equipped with acidleach pond three phase separator 1-7, acidleach point
Outlet top from area is equipped with acidleach pond downflow weir 1-8, acidleach pond downflow weir 1-8 connection regulating reservoir water inlet pipes；Acid dipping separation area
Bottom is designed to pyramidal structure, and acidleach pond drain valve 1-9 is provided in pyramidal structure bottom.
The nitric acid that the acid solution of acid solution addition metering system 1-4 additions is 4.0mol/L.
The regulating reservoir 2 include regulating reservoir water inlet pipe 2-1 and regulating reservoir pond outlet pipe 2-2, regulating reservoir outlet pipe 2-2 with
Adsorption tank water inlet pipe connects, and lye addition metering system 2-3 is provided in the middle part of regulating reservoir, the middle and lower part of regulating reservoir is provided with adjusting
Pond blender 2-4.
The adsorption tank 3 includes absorption mixed zone 3-1 and adsorption precipitation area 3-2, and absorption mixed zone bottom is equipped with absorption
Pond water inlet pipe 3-3, absorption mixed zone middle and upper part are equipped with adsorbent and add metering system 3-4, are provided in the middle part of absorption mixed zone
Adsorption tank blender 3-5；Baffle 3-6 is equipped in adsorption precipitation area, the inner wall formation of the baffle and adsorption tank is as runner, absorption
The exit of settling zone is equipped with adsorption tank three phase separator 3-7, and the outlet top in adsorption precipitation area is equipped with adsorption tank downflow weir 3-
8, adsorption precipitation area bottom is designed to pyramidal structure, and adsorption precipitation area bottom is provided with adsorption tank drain valve 3-9.
The manufacturing process of the adsorbent of adsorbent addition metering system 3-4 addition is：
1. formalin is poured into reaction kettle, it is stirred using blender；
2. adding in lye into reaction kettle, it is stirred, the pH value for adjusting mixed liquor is 8.0；
3. adding in urea into reaction kettle, it is stirred；
4. heating up to reaction kettle, when temperature reaches 40 DEG C and 60 DEG C, 10min is kept the temperature respectively, is warming up to 90 later
DEG C, sustained response 70min；
5. adjusting the pH to 4.5 of mixed liquor, it is made in bath temperature to be the reaction was continued under conditions of 90 DEG C 70min；
6. the pH for adjusting mixed liquor is 6.0, urea is added in, is stirred；
7. carrying out being cooled to 85 DEG C to reaction kettle, 30min is kept the temperature, is cooled to room temperature, discharges, adsorbent is made.
The dissolving tank 4 is equipped with lysate add-on system 4-1, heater 4-2, dissolving tank blender 4-3 and dissolving tank
Export 4-4, dissolving tank outlet 4-4 and abstraction pool inlet communication.
The abstraction pool 5 includes extraction stirring area 5-1 and extraction and separation area 5-2, and extraction stirring area bottom is equipped with extraction
Pond import 5-3, extraction stirring area middle and lower part are equipped with extract liquor and add metering system 5-4, and extraction is provided in the middle part of extraction stirring area
Take pond blender 5-5；It extracts and extraction isolation board is equipped between stirring area and extraction and separation area, flow is equipped in the middle part of extraction isolation board
Channel, the middle and upper part in extraction and separation area are equipped with upper light liquid and export 5-6, and the lower part in extraction and separation area is equipped with lower heavy liquid exit 5-7.
The method for carrying out thorium recycling using the retracting device of above-mentioned thorium, has following steps：
1. crusher, to rare earth waste break process, broken rare earth waste crosses the sieve of 80 mesh, collect and sieved by 80 mesh
Rare earth waste.
2. the nitric acid of 4.0mol/L enters acidleach stirring area 1-1, rare earth waste addition metering system by acid solution import 1-3
1-5 adds rare earth waste, and acidleach pond blender 1-6 is stirred solid-liquid mixture.Then solid-liquid mixture enters acidleach point
Separation of solid and liquid is realized from area 1-2, acidleach pond three phase separator 1-7；Sediment sinks to acid dipping separation area under gravity
Lower part, pass through the acidleach pond drain valve 1-9 of bottom discharge；Liquid enters regulating reservoir water inlet pipe by acidleach pond downflow weir 1-8.
3. liquid enters regulating reservoir 2, lye addition metering system 2-3 addition sodium hydroxides by regulating reservoir water inlet pipe 2-1
Solution, the pH value for adjusting liquid is 4.5, and regulating reservoir blender 2-4 is stirred liquid mixing.
4. the liquid after adjusting enters adsorption tank 3 by adsorption tank water inlet pipe 3-3, with carrying out self-absorbent addition metering system
The adsorbent mixing of 3-4, is stirred using adsorption tank blender 3-5；Then mixture enters adsorption precipitation area 3-2, absorption
Pond three phase separator 3-7 realizes separation of solid and liquid；Adsorbent sinks to the lower part in adsorption precipitation area under gravity, passes through bottom
The adsorption tank drain valve 3-9 discharges in portion；Liquid is flowed out by adsorption tank downflow weir 3-8, is further processed rear reuse.
5. the adsorbent of adsorption tank drain valve discharge enters dissolving tank 4, lysate add-on system 4-1 addition deionized waters and
Sodium nitrate solution, heater 4-2, which carries out heating, makes the temperature of dissolving tank 4 be maintained at 60 degree, and dissolving tank blender 4-3 is stirred
It mixes, adsorbent is dissolved into lysate, and then mixed liquor enters abstraction pool 5 by dissolving tank outlet 4-4.
6. the mixed liquor from dissolving tank enters the extraction stirring area 5-1 of abstraction pool, the mixing with tributyl phosphate and benzene
Liquid mixes, and abstraction pool blender 5-5 is stirred, and then mixture enters extraction and separation area 5-2, and the small liquid of proportion passes through upper
Light liquid outlet 5-6 outflows are further processed；Heavy liquid is flowed out by lower heavy liquid exit 5-7, is further processed.
Using above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned description, relevant staff is complete
It can carry out various changes and amendments without departing from the scope of the technological thought of the present invention' entirely.This invention it is technical
Range is not limited to the content on specification, it is necessary to determine its technical scope according to right.
Claims (2)
1. a kind of retracting device of thorium, it is characterised in that：Including crusher, screening machine, acidleach pond (1), regulating reservoir (2), absorption
Pond (3), dissolving tank (4) and abstraction pool (5)；
The crusher carries out break process to rare earth waste；
The screening machine carries out Screening Treatment to broken rare earth waste；
The acidleach pond (1) includes acidleach stirring area (1-1) and acid dipping separation area (1-2), and acidleach stirring area (1-1) bottom is set
There are acid solution import (1-3), acid solution import connection acid solution addition metering system (1-4)；Acidleach stirring area top is provided with rare earth
Waste residue addition metering system (1-5)；Acidleach pond blender (1-6) is provided in the middle part of acidleach stirring area；Acid dipping separation is set in area
There is folded plate, the inner wall in the folded plate and acidleach pond forms mixture runner, and the exit in acid dipping separation area is equipped with acidleach pond three-phase separate
From device (1-7), the outlet top in acid dipping separation area is equipped with acidleach pond downflow weir (1-8), and acidleach pond downflow weir (1-8) connection is adjusted
Pond water inlet pipe；Acid dipping separation area bottom is designed to pyramidal structure, and acidleach pond drain valve (1-9) is provided in pyramidal structure bottom；
The regulating reservoir (2) includes regulating reservoir water inlet pipe (2-1) and regulating reservoir pond outlet pipe (2-2), regulating reservoir outlet pipe (2-
2) it is connect with adsorption tank water inlet pipe, lye addition metering system (2-3), the middle and lower part setting of regulating reservoir is provided in the middle part of regulating reservoir
There is regulating reservoir blender (2-4)；
Including adsorbing mixed zone (3-1) and adsorption precipitation area (3-2), absorption mixed zone bottom is equipped with inhales the adsorption tank (3)
Attached pond water inlet pipe (3-3), absorption mixed zone middle and upper part are equipped with adsorbent addition metering system (3-4), in the middle part of absorption mixed zone
It is provided with adsorption tank blender (3-5)；Baffle (3-6) is equipped in adsorption precipitation area, the inner wall formation of the baffle and adsorption tank is made
For runner, the exit in adsorption precipitation area is equipped with adsorption tank three phase separator (3-7), and the outlet top in adsorption precipitation area, which is equipped with, inhales
Attached pond downflow weir (3-8), adsorption precipitation area bottom are designed to pyramidal structure, and adsorption tank discharge is provided in adsorption precipitation area bottom
Valve (3-9)；
The manufacturing process of adsorbent that adsorbent addition metering system (3-4) adds is：
1. formalin is poured into reaction kettle, it is stirred using blender；
2. adding in lye into reaction kettle, it is stirred, the pH value for adjusting mixed liquor is 7.5~8.0；
3. adding in urea into reaction kettle, it is stirred；
4. heating up to reaction kettle, when temperature reaches 35~40 DEG C and 60~65 DEG C, 10~15min is kept the temperature respectively, later
90~95 DEG C are warming up to, 60~70min of sustained response；
5. adjusting the pH of the mixed liquor in reaction kettle to 4.O~4.5, continue under conditions of it is made to be 90~95 DEG C in bath temperature
React 60~70min；
6. the pH for adjusting mixed liquor is 6.0~6.5, urea is added in, is stirred；
7. carrying out being cooled to 80~85 DEG C to reaction kettle, 30min is kept the temperature, is cooled to room temperature, discharges, adsorbent is made；
The dissolving tank (4) is equipped with lysate add-on system (4-1), heater (4-2), dissolving tank blender (4-3) and molten
Xie Chi exports (4-4), dissolving tank outlet (4-4) and abstraction pool inlet communication；
For the abstraction pool (5) including extracting stirring area (5-1) and extraction and separation area (5-2), extraction stirring area bottom is equipped with extraction
Pond import (5-3) is taken, extraction stirring area middle and lower part is equipped with extract liquor addition metering system (5-4), is set in the middle part of extraction stirring area
It is equipped with abstraction pool blender (5-5)；It extracts and extraction isolation board is equipped between stirring area and extraction and separation area, in the middle part of extraction isolation board
Equipped with water stream channel, the middle and upper part in extraction and separation area is equipped with upper light liquid and exports (5-6), and the lower part in extraction and separation area is equipped with lower heavy-fluid
It exports (5-7).
2. the method that thorium recycling is carried out using a kind of retracting device of thorium as described in claim 1, it is characterised in that：With such as
Lower step；
1. crusher, to rare earth waste break process, broken rare earth waste crosses the sieve of 60~100 mesh, collect by 60~
The rare earth waste of 100 mesh sieve；
By acid solution import (1-3) into acidleach stirring area (1-1), 2. rare earth waste addition metering system (1-5) adds acid solution
Rare earth waste, acidleach pond blender (1-6) are stirred solid-liquid mixture；Then solid-liquid mixture enters acid dipping separation area
(1-2), acidleach pond three phase separator (1-7) realize separation of solid and liquid；Sediment sinks to acid dipping separation area under gravity
Lower part, discharged by the acidleach pond drain valve (1-9) of bottom；Liquid by acidleach pond downflow weir (1-8) into regulating reservoir into
Water pipe；
3. for liquid by regulating reservoir water inlet pipe (2-1) into regulating reservoir (2), lye addition metering system (2-3) adds hydroxide
Sodium solution, adjusts the pH value of liquid, and regulating reservoir blender (2-4) is stirred liquid mixing；
4. into adsorption tank (3), metering system is added with carrying out self-absorbent by adsorption tank water inlet pipe (3-3) for the liquid after adjusting
The adsorbent mixing of (3-4), is stirred using adsorption tank blender (3-5)；Then mixture enters adsorption precipitation area (3-
2), adsorption tank three phase separator (3-7) realizes separation of solid and liquid；Adsorbent is sunk under gravity under adsorption precipitation area
Portion is discharged by the adsorption tank drain valve (3-9) of bottom；Liquid is flowed out by adsorption tank downflow weir (3-8), is further processed；
5. the adsorbent of adsorption tank drain valve discharge enters dissolving tank (4), lysate add-on system (4-1) addition lysate adds
Hot device (4-2) is heated, and dissolving tank blender (4-3) is stirred, and adsorbent is dissolved into lysate, and then mixed liquor leads to
Dissolving tank outlet (4-4) is crossed into abstraction pool (5)；
6. the mixed liquor from dissolving tank enters the extraction stirring area (5-1) of abstraction pool, mixed with extract liquor, abstraction pool blender
(5-5) is stirred, and then mixture enters extraction and separation area (5-2), and the small liquid of proportion exports (5-6) by upper light liquid and flows
Go out, be further processed；Heavy liquid is flowed out by lower heavy liquid exit (5-7), is further processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711247520.2A CN108144947A (en) | 2017-12-01 | 2017-12-01 | The retracting device and method of a kind of thorium |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711247520.2A CN108144947A (en) | 2017-12-01 | 2017-12-01 | The retracting device and method of a kind of thorium |
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| CN108144947A true CN108144947A (en) | 2018-06-12 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103014333A (en) * | 2012-11-27 | 2013-04-03 | 益阳鸿源稀土有限责任公司 | Separation and recovery method of uranium, thorium and rare earth in monazite slag |
| CN104766643A (en) * | 2014-01-03 | 2015-07-08 | 南京理工大学 | Method for removing thorium ions in rear earth melting wastewater through urea resin |
| CN105132719A (en) * | 2015-09-15 | 2015-12-09 | 成都理工大学 | Enrichment recovery method of rare earth ions in leaching liquor of rare earth tailings |
| CN105152402A (en) * | 2015-09-13 | 2015-12-16 | 常州大学 | Heavy metal wastewater pretreatment device |
| WO2016011540A1 (en) * | 2014-07-21 | 2016-01-28 | Search Minerals Inc. | Acid leaching of rare earth elements |
| CN106148713A (en) * | 2015-03-28 | 2016-11-23 | 青岛蓝农谷农产品研究开发有限公司 | A kind of rare earth slag reclaims the method for degraded |
| JP2017119914A (en) * | 2015-12-25 | 2017-07-06 | 学校法人法政大学 | Apparatus for concentrating metal compound |
| CN107267784A (en) * | 2017-07-17 | 2017-10-20 | 中国恩菲工程技术有限公司 | The system for handling rare earth ore concentrate |
-
2017
- 2017-12-01 CN CN201711247520.2A patent/CN108144947A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103014333A (en) * | 2012-11-27 | 2013-04-03 | 益阳鸿源稀土有限责任公司 | Separation and recovery method of uranium, thorium and rare earth in monazite slag |
| CN104766643A (en) * | 2014-01-03 | 2015-07-08 | 南京理工大学 | Method for removing thorium ions in rear earth melting wastewater through urea resin |
| WO2016011540A1 (en) * | 2014-07-21 | 2016-01-28 | Search Minerals Inc. | Acid leaching of rare earth elements |
| CN106148713A (en) * | 2015-03-28 | 2016-11-23 | 青岛蓝农谷农产品研究开发有限公司 | A kind of rare earth slag reclaims the method for degraded |
| CN105152402A (en) * | 2015-09-13 | 2015-12-16 | 常州大学 | Heavy metal wastewater pretreatment device |
| CN105132719A (en) * | 2015-09-15 | 2015-12-09 | 成都理工大学 | Enrichment recovery method of rare earth ions in leaching liquor of rare earth tailings |
| JP2017119914A (en) * | 2015-12-25 | 2017-07-06 | 学校法人法政大学 | Apparatus for concentrating metal compound |
| CN107267784A (en) * | 2017-07-17 | 2017-10-20 | 中国恩菲工程技术有限公司 | The system for handling rare earth ore concentrate |
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