CN103451442A - Method for separating rare-earth resource from rear-earth slag by virtue of supergravity - Google Patents
Method for separating rare-earth resource from rear-earth slag by virtue of supergravity Download PDFInfo
- Publication number
- CN103451442A CN103451442A CN2013104163376A CN201310416337A CN103451442A CN 103451442 A CN103451442 A CN 103451442A CN 2013104163376 A CN2013104163376 A CN 2013104163376A CN 201310416337 A CN201310416337 A CN 201310416337A CN 103451442 A CN103451442 A CN 103451442A
- Authority
- CN
- China
- Prior art keywords
- slag
- rare
- earth
- hypergravity
- rare earth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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 discloses a method for separating a rare-earth resource from rear-earth slag by virtue of supergravity, and the method comprises the following steps: step 1, cooling molten rare-earth slag within a temperature range of 1150-1300 DEG C at a cooling speed smaller than 2 DEG C/min to obtain thermally treated rare-earth slag; step 2, treating the thermally treated rare-earth slag by means of centrifugal gravitational separation. By virtue of centrifugal gravitational separation, a rare earth ore concentrate of which the cefluosil grade is 80%-93% can be obtained, and the recovery rate of rare earth in the rare-earth slag is as high as 85%-90%. In tailings, the main phase is calcium fluoride and barium fluorophlogopite containing rare earth, which can be used for replacing partial fluorite for recycling calcium fluoride, and meanwhile the tailings can be directly used as a raw material for extracting Sc2O3 and Eu2O3 by virtue of a wet method. The method disclosed by the invention has the advantages of realizing directional concentration of small and dispersed cefluosil in the rare-earth slag by virtue of supergravity, increasing the yield and quality of a product Ce2O3, and meanwhile recycling the fluorite, Sc2O3 and the Eu2O3 from the tailings. The method disclosed by the invention can be used for not only solving the environmental load problems caused by the rare-earth slag but also realizing comprehensive utilization of the rare-earth slag resources.
Description
Technical field
The present invention relates to the symbiosis resource high-efficiency extraction and application in field of metallurgy, particularly a kind of under the hypergravity condition method of rare-earth separating slag middle-weight rare earths resource.
Background technology
The packet header baiyuneboite is large-scale many metals intergrowth deposit of the elements such as the distinctive iron content of China, rare earth, niobium and fluorine, and its middle-weight rare earths reserves occupy first place in the world.In the fluorite type in master, eastern mining area, poor rock (iron content is lower and contain rare earth, fluorine is higher) directly enters blast-furnace smelting without ore dressing at present, and rare earth is not reduced and almost all enters slag and obtain enrichment, slag middle rare earth R
xo
ycontent is in 15% left and right, and only has a kind of rare-earth mineral of cefluosil.In addition, also has a kind of shaped minerals that is rich in scandium and europium-containing rare earth barium fluorophlogopite.Gangue mineral is cuspidite, fluorite and sulfurated lime.Wherein cefluosil and containing rare earth barium fluorophlogopite be to mainly contain two kinds of technological minerals with economic implications in this slag.
Rich rare earth slag is according to R
xo
ydifferent grades is divided into the product of different grades, can be respectively as the raw material of separation of rare earth elements and the various rare earth alloies of refining, and containing rare earth barium fluorophlogopite after enrichment, can obtain containing Sc
20
3about 670ppm and containing Eu
20
3the enriched substance of about 500ppm, can extract expensive Scium trioxide through hydrometallurgy, simultaneously the comprehensive europium sesquioxide that reclaims.Through preresearch estimates, 100 tons of blast furnace slags of every processing can obtain approximately 420,000 yuan of profits.
Researcher both domestic and external reclaims and launches a series of research work around the ore dressing of slag middle-weight rare earths phase: through the gravity treatment test, can obtain the concentrate of rare earth grade 50-59% and the chats of 14% left and right, the rate of recovery of concentrate and chats can reach 35-48% and 30% left and right.Through flotation+gravity treatment+high intensity magnetic separation process flow process, selected respectively 60.4% rare earth ore concentrate and mine tailing, after the mine tailing of selecting carries out flotation again, obtain the concentrate containing rare earth barium fluorophlogopite 62.3%-64.33%, its rate of recovery is in 50% left and right.The rate of recovery of the concentrate middle-weight rare earths resource that obviously, existing ore-dressing technique obtains is lower.Simultaneously, before rich rare earth slag carries out gravity treatment, magnetic separation, flotation, need first that it is levigate, so that dissociating of monomer ore deposit phase, this process ore grinding expense is high, can cause rare-earth mineral phase cefluosil main in rare earth slag to be ground into mutually the crystal grain that particle is tiny, reduce the rate of recovery of rare earth slag middle-weight rare earths resource.In addition, floatation process Chinese medicine consumption is large, easily contaminate environment.
Summary of the invention
The present invention is intended at least solve one of above-mentioned technological deficiency, provide a kind of and can omit the huge energy consumption cost of ore grinding link in early stage, high-efficiency and continuous is concentration and separation cefluosil phase from rare earth slag, thereby improve the rate of recovery of rare earth slag middle-weight rare earths resource, finally realize the treatment process of continuous high-efficient recovering rare earth slag middle-weight rare earths resource.
The method comprises the following steps:
Step 1, the molten rare earth slag is cooling with the rate of cooling that is less than 2 ℃/min 1300-1150 ℃ of temperature range, obtain the thermal treatment rare earth slag;
Step 2, described thermal treatment rare earth slag is carried out to the centrifugal hypergravity separation.
Preferably, in the sepn process of centrifugal hypergravity described in step 2, the centrifugal hypergravity coefficient is greater than 100g, and temperature range is 1100-1200 ℃.
Preferably, the sepn process of centrifugal hypergravity described in step 2 is that constant temperature is centrifugal, and centrifugation time is 5-30min; Perhaps described centrifugal hypergravity sepn process is, after speed with 1-5 ℃/min is cooled to 1100 ℃, to finish centrifugal.
Preferably, the dual alkalinity value scope of the slag of molten rare earth described in step 1 is 1.5-2.0, CaF
2the 15-17% that mass percentage content is the molten rare earth slag; Wherein said dual alkalinity is CaO and SiO in the molten rare earth slag
2the massfraction ratio.
Preferably, also comprise before step 1 in described molten rare earth slag and add additive, described additive is CaO, SiO
2with one or more in fluorite.
Preferably, also comprise between step 1 and step 2 described thermal treatment rare earth slag is risen again, the temperature range of rising again is 1190-1210 ℃; Step 2 is that the thermal treatment rare earth slag after rising again is carried out to the centrifugal hypergravity separation.
Preferably, described rare earth slag comprises the rich rare earth slag of blast furnace, Blast-Furnace Transition rare earth slag and molten minute rare earth slag.
Preferably, described centrifugal hypergravity is separated into continuous processing or intermittent batch processing.
The present invention's the second purpose is to propose a kind of centrifugal separation equipment of hypergravity rare-earth separating slag middle-weight rare earths resource, centrifugal separation equipment comprises material inlet, rotary drum (8), varying-speed motor, it is characterized in that, varying-speed motor is connected with rotary drum, be fixed with conveying internal screw pottery liner on rotary drum, described conveying internal screw pottery liner sense of rotation is identical with rotary drum, the rotary drum two ends are respectively the large end of the different rotary drum of bore and rotary drum small end, the large end of rotary drum is liquid outlet opening, and the rotary drum small end is the solid discharge port.
The present invention's the 3rd purpose also is to propose a kind of centrifugal separation equipment of hypergravity rare-earth separating slag middle-weight rare earths resource, centrifugal separation equipment comprises material inlet, rotary drum (8), varying-speed motor, it is characterized in that, varying-speed motor is connected with rotary drum, porous ceramic filter is installed in rotary drum, and the aperture of porous ceramic filter is less than 100 microns; Described rare earth slag is after centrifugation, and slag liquid flows out via described porous ceramic filter outer wall, and solid is exported via the strainer inwall.
Based on technical scheme of the present invention, after being processed, rare earth slag can obtain the rare earth ore concentrate of cefluosil grade at 80-93%, and the rate of recovery of concentrate middle-weight rare earths can reach 85-90%.In mine tailing, main phase is Calcium Fluoride (Fluorspan) and contains rare earth barium fluorophlogopite, can replace the part fluorite for reclaiming Calcium Fluoride (Fluorspan), and mine tailing can directly be carried Sc as wet method simultaneously
20
3, Eu
20
3raw material.The invention has the advantages that and utilize hypergravity to realize cefluosil orienting enriching tiny in the rare earth slag, that disperse, improved products C e
20
3recovery rate and quality, reclaimed the fluorite in the mine tailing, Sc simultaneously
20
3and Eu
20
3.Not only solve the carrying capacity of environment problem of rare earth slag, and realized the comprehensive utilization of rare earth slag resource.
The accompanying drawing explanation
Fig. 1 is cefluosil phase schema in high temperature hypergravity rare-earth separating slag of the present invention.
Fig. 2 is cefluosil system architecture schematic diagram in high temperature hypergravity rare-earth separating slag in the present invention.
The 1-blast furnace, 2-torpedo tank car, 3-slag ladle, 4-heating system, 5-charging system, 6-bottom blowing system, 7-cefluosil crystal grain, 8-rotary drum, 9-conveying internal screw pottery liner, 10-tailings melt, 11-bearing, 12-shaft coupling, 13-electric motor.
Embodiment
In the present invention, the method for hypergravity rare-earth separating slag middle-weight rare earths resource comprises following two steps as shown in Figure 1:
In step 1, rare earth slag, the selectivity of cefluosil is separated out and grows up: the molten rare earth slag is cooling with the rate of cooling that is less than 2 ℃/min 1300-1150 ℃ of temperature range, obtain the thermal treatment rare earth slag.
In order to guarantee at first to need rare earth slag is carried out to pre-treatment containing effective separation of rare earth slag.When the rare earth slag is come out of the stove, by the molten slag composition, detect in real time, learn rapidly basicity in slag, viscosity information; And utilize online infrared thermometer to detect the slag real time temperature.
If (the present invention refers to the massfraction ratio of CaO and SiO in slag: CaO/SiO to the slag dual alkalinity
2) be less than 1.5, add CaO adjustment basicity (CaO/SiO immediately in slag after slagging tap
2) between 1.5-2.0; Otherwise, if basicity of slag (CaO/SiO
2) be greater than 2.0, add SiO immediately in slag after slagging tap
2adjust basicity (CaO/SiO
2) between 1.5-2.0.For guaranteeing the mobility of slag, viscosity coefficient of dross need to be controlled to certain scope simultaneously, therefore can in slag, add fluorite, make CaF in slag
2mass percentage content reach 16% left and right, as 15-17%.
After pre-treatment, immediately slag is heat-treated.Equipment for Heating Processing is equivalent to a refining furnace, adopt bottom blown gas to stir the even in-furnace slag temperature of companion, and adjust and control slag slow cooling speed with the Graphite Electrodes heating, with guarantee slag between 1300-1150 ℃ to be less than 2 ℃/min speed Slow cooling.Finally slag is risen again again, make its temperature be adjusted into 1200 ℃ of left and right, for example 1190-1210 ℃, then carry out the centrifugal hypergravity separation of step 2 immediately.
In step 2, rare earth slag, cefluosil phase centrifugal hypergravity separates.
Slag after rising again is joined to separating centrifuge slowly, drive the rotary drum high speed rotating by electric motor and produce hypergravity, the centrifugal hypergravity coefficient is greater than 100g, ceramic material conveying internal screw liner is housed in the rotary drum of high speed rotating, its sense of rotation is identical with rotary drum, containing the slag of separating out the cefluosil suspended particle enters in separating centrifuge from feed-pipe, under the effect of centrifugal force, in slag, the solid phase cefluosil is deposited in drum inner wall, by the conveying spiral pushing to the rotary drum small end, from solid outlet, discharge, slag liquid flows out from the large end overflow port of rotary drum.
Centrifugal hypergravity separates can be centrifugal for constant temperature, keeps slag in separating centrifuge in predetermined temperature, to continue centrifugal predetermined time; It can be also that conditionality is centrifugal that centrifugal hypergravity separates, and in centrifugal process, controls the speed of cooling of slag in separating centrifuge, when the temperature of slag is reduced to pre-determined range, finishes centrifugal.
The system of implementing aforesaid method of the present invention comprises main equipment for Heating Processing and centrifugal separation equipment.
Wherein, equipment for Heating Processing comprises slag ladle (3), heating system (4), charging system (5) and bottom blowing system (6).
Centrifugal separation equipment comprises material inlet, rotary drum (8), varying-speed motor (13), varying-speed motor (13) is connected with rotary drum (8) with bearing (11) by shaft coupling (12), be fixed with conveying internal screw pottery liner on rotary drum, described conveying internal screw pottery liner sense of rotation is identical with rotary drum, the rotary drum two ends are respectively the large end of the different rotary drum of bore and rotary drum small end, the large end of rotary drum is liquid outlet opening, and the rotary drum small end is the solid discharge port.
It can be that continuity is processed that the centrifugal hypergravity that centrifugal separation equipment carries out separates, and when persistence is injected melt from material inlet to rotary drum, carries out the centrifugal hypergravity separation, does not obtain isolate from discharge port with not shutting down.Can be also intermittent batch operation, melt is disposable injects rotary drum (8) from material inlet, after then starting centrifugal separation equipment rotation 5-30min or rotating and reach predetermined temperature to melt, shuts down naturally cooling.
In conjunction with shown in Fig. 2, cefluosil system architecture schematic diagram in high temperature hypergravity rare-earth separating slag of the present invention being explained.
Come out of the stove and pack into after slag ladle (3) containing the slag of rare earth, add CaO or SiO from charging system (5) to slag
2basicity of slag is adjusted into to 1.5-2.0, with in backward slag, adding fluorite, makes CaF in slag
2mass percentage content reach 15-17%, to improve the mobility of slag; Open bottom blowing system (6) bottom blown gas simultaneously and stirred, promote that fusing and the slag temperature of additive are even; When the slag temperature drops to 1300 ℃ of temperature left and right, control speed of cooling, to be less than the rate of cooling slow cooling to 1150 ℃ of 2 ℃/min, impel rare earth element in the rare earth slag slag to the enrichment of cefluosil phase; Recycling heating system (4) is heated to 1200 ℃ of left and right by slag, to guarantee slag, has mobility preferably; Slag after thermal treatment is slowly joined to the whizzer material inlet, drive the rotary drum high speed rotating by electric motor and produce centrifugal hypergravity, conveying internal screw pottery liner is housed in the rotary drum of high speed rotating, its sense of rotation is identical with rotary drum, under the effect of centrifugal force, in melt, solid phase cefluosil crystal is deposited in drum inner wall, by the conveying spiral pushing to the rotary drum small end, from solid outlet, discharge, slag liquid flows out from the large end overflow port of rotary drum.
Replacedly, in centrifugation apparatus, internal screw pottery liner can be replaced by porous ceramic filter, the aperture of porous ceramic filter should be less than 100 microns.In built-in porous ceramic filter situation, slag liquid is by flowing out via the strainer outer wall, and the filtrate cefluosil is exported via the strainer inwall.
Below in conjunction with example, set forth.
embodiment 1:
Get the rich rare earth slag of 10kg1# Baogang BF, it is ground to below 200 orders, after testing, its dual alkalinity CaO/SiO
2be 1.28, CaF
2content is 13% of rare earth slag, therefore in slag with addition of 0.5kgCaO and CaF
2the mixture that mass ratio is 1:1, make its basicity be adjusted into 1.7, CaF
2content reaches 16% of rare earth slag, mix post-heating to 1400 ℃ insulation 30min, guarantee that composition mixes, be cooled to rapidly subsequently 1300 ℃, then with the rare earth element of rate of cooling in temperature range 1300-1150 ℃ impels rare earth slag of 0.5 ℃/min to the enrichment of cefluosil phase, finally with the form of cefluosil crystal, separate out and grow up.After slag thermal treatment, adjust after slag temperature to 1200 ℃ the whizzer of opening immediately built-in ceramic material conveying internal screw liner, adjusting centrifuge speed, to make gravity coefficient be 300g, after constant temperature centrifugation 30min, closes whizzer.The sample of rotary drum small end solid outlet is clayed into power and carried out XRD analysis.Under different experimental conditions, the rate of recovery of the rich cefluosil material composition of gained rotary drum small end and rare earth resources is as shown in the table.
embodiment 2:
Get the rich rare earth slag of 10kg1# Baogang BF, it is ground to below 200 orders, after testing, its dual alkalinity CaO/SiO
2be 1.28, CaF
2content is 13% of rare earth slag, therefore in slag with addition of 0.5kgCaO and CaF
2the mixture that mass ratio is 1:1, make its basicity be adjusted into 1.7, CaF
2content reaches 16% of rare earth slag, mix post-heating to 1400 ℃ insulation 30min, guarantee that composition mixes, be cooled to rapidly subsequently 1300 ℃, then with the rare earth element of rate of cooling in temperature range 1300-1150 ℃ impels rare earth slag of 0.5 ℃/min to the enrichment of cefluosil phase, finally with the form of cefluosil crystal, separate out and grow up.After slag thermal treatment, adjust after slag temperature to 1200 ℃ the whizzer of opening immediately built-in ceramic material conveying internal screw liner, it is 700g that the adjustment centrifuge speed makes gravity coefficient, control rate of cooling in 1-5 ℃/min left and right, after temperature is reduced to 1100 ℃, close whizzer, naturally cooling.The sample of rotary drum small end solid outlet is clayed into power and carried out XRD analysis.Test result shows in the whizzer centrifugal process, the rare earth slag middle-weight rare earths resource recovery that rate of cooling is 1 ℃/min is 90.05%, the rare earth slag middle-weight rare earths resource recovery that rate of cooling is 2.5 ℃/min is 87.64%, and the rare earth slag middle-weight rare earths resource recovery that rate of cooling is 5 ℃/min is 85.09%.
embodiment 3:
Get the rich rare earth slag of 10kg1# Baogang BF, it is ground to below 200 orders, after testing, its dual alkalinity CaO/SiO
2be 1.28, CaF
2content is 13% of rare earth slag, therefore in slag with addition of 0.5kgCaO and CaF
2the mixture that mass ratio is 1:1, make its basicity be adjusted into 1.7, CaF
2content reaches 16% of rare earth slag, mix post-heating to 1400 ℃ insulation 30min, guarantee that composition mixes, be cooled to rapidly subsequently 1300 ℃, then with the rare earth element of rate of cooling in temperature range 1300-1150 ℃ impels rare earth slag of 0.5 ℃/min to the enrichment of cefluosil phase, finally with the form of cefluosil crystal, separate out and grow up.After slag thermal treatment, adjust after slag temperature to 1200 ℃ the whizzer of opening immediately built-in porous ceramic filter, it is 500g that the adjustment centrifuge speed makes gravity coefficient, and in the control whizzer, speed of cooling is 2.5 ℃/min, after temperature is reduced to 1100 ℃, close whizzer, naturally cooling.To be trapped in respectively the sample on cartridge filter and leak to the sample in the strainer outside and clay into power and carry out XRD analysis.Test result shows, cuts in the sample on cartridge filter the cefluosil grade up to 93.19%, and leak to cefluosil grade in the sample of filter bottom be only 6.81%.The rate of recovery of rare earth slag middle-weight rare earths resource can reach 86.22% as calculated.
embodiment 4:
Get the rich rare earth slag of 10kg2# Baogang BF, it is ground to below 200 orders, after testing, its dual alkalinity CaO/SiO
2be 2.19, CaF
2content is 15.2% of rare earth slag, therefore in slag with addition of 0.5kgSiO
2make its basicity be adjusted into 1.7, mix post-heating to 1400 ℃ insulation 30min, guarantee that composition mixes, be cooled to rapidly subsequently 1300 ℃, then with the rare earth element of rate of cooling in temperature range 1300-1150 ℃ impels rare earth slag of 1 ℃/min to the enrichment of cefluosil phase, finally with the form of cefluosil crystal, separate out and grow up.After slag thermal treatment, adjust after slag temperature to 1200 ℃ the whizzer of opening immediately built-in porous ceramic filter, it is 700g that the adjustment centrifuge speed makes gravity coefficient, and in the control whizzer, speed of cooling is 5 ℃/min, after temperature is reduced to 1100 ℃, close whizzer, naturally cooling.To be trapped in respectively the sample on cartridge filter and leak to the sample in the strainer outside and clay into power and carry out XRD analysis.Test result shows, cuts in the sample on cartridge filter the cefluosil grade up to 88.35%, and leak to cefluosil grade in the sample of filter bottom be only 11.65%.The rate of recovery of rare earth slag middle-weight rare earths resource can reach 87.54% as calculated.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is by claims and be equal to and limit.
Claims (10)
1. the method for a hypergravity rare-earth separating slag middle-weight rare earths resource is characterized in that the method comprises the following steps:
Step 1, the molten rare earth slag is cooling with the rate of cooling that is less than 2 ℃/min 1300-1150 ℃ of temperature range, obtain the thermal treatment rare earth slag;
Step 2, described thermal treatment rare earth slag is carried out to the centrifugal hypergravity separation.
2. the method for hypergravity rare-earth separating slag middle-weight rare earths resource as claimed in claim 1, is characterized in that, in the sepn process of centrifugal hypergravity described in step 2, the centrifugal hypergravity coefficient is greater than 100g, and temperature range is 1100-1200 ℃.
3. the method for hypergravity rare-earth separating slag middle-weight rare earths resource as claimed in claim 1, is characterized in that, the sepn process of centrifugal hypergravity described in step 2 is that constant temperature is centrifugal, and centrifugation time is 5-30min; Perhaps described centrifugal hypergravity sepn process is, after speed with 1-5 ℃/min is cooled to 1100 ℃, to finish centrifugal.
4. the method for hypergravity rare-earth separating slag middle-weight rare earths resource as claimed in claim 1, is characterized in that, the dual alkalinity value scope of the slag of molten rare earth described in step 1 is 1.5-2.0, CaF
2the 15-17% that mass percentage content is the molten rare earth slag; Wherein said dual alkalinity is CaO and SiO in the molten rare earth slag
2the massfraction ratio.
5. the method for hypergravity rare-earth separating slag middle-weight rare earths resource as claimed in claim 1, is characterized in that, also comprise before step 1 in described molten rare earth slag and add additive, described additive is CaO, SiO
2with one or more in fluorite.
6. the method for hypergravity rare-earth separating slag middle-weight rare earths resource as claimed in claim 1, is characterized in that, also comprise between step 1 and step 2 described thermal treatment rare earth slag is risen again, the temperature range of rising again is 1190-1210 ℃; Step 2 is that the thermal treatment rare earth slag after rising again is carried out to the centrifugal hypergravity separation.
7. the method for hypergravity rare-earth separating slag middle-weight rare earths resource as claimed in claim 1 is characterized in that: described rare earth slag comprises the rich rare earth slag of blast furnace, Blast-Furnace Transition rare earth slag and a molten minute rare earth slag.
8. the method for hypergravity rare-earth separating slag middle-weight rare earths resource according to claim 1, it is characterized in that: described centrifugal hypergravity is separated into continuous processing or intermittent batch processing.
9. the centrifugal separation equipment of a hypergravity rare-earth separating slag middle-weight rare earths resource, centrifugal separation equipment comprises material inlet, rotary drum (8), varying-speed motor, it is characterized in that, varying-speed motor is connected with rotary drum, be fixed with conveying internal screw pottery liner on rotary drum, described conveying internal screw pottery liner sense of rotation is identical with rotary drum, and the rotary drum two ends are respectively the large end of the different rotary drum of bore and rotary drum small end, the large end of rotary drum is liquid outlet opening, and the rotary drum small end is the solid discharge port.
10. the centrifugal separation equipment of a hypergravity rare-earth separating slag middle-weight rare earths resource, centrifugal separation equipment comprises material inlet, rotary drum (8), varying-speed motor, it is characterized in that, varying-speed motor is connected with rotary drum, porous ceramic filter is installed in rotary drum, and the aperture of porous ceramic filter is less than 100 microns; Described rare earth slag is after centrifugation, and slag liquid flows out via described porous ceramic filter outer wall, and solid is exported via the strainer inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310416337.6A CN103451442B (en) | 2013-09-13 | 2013-09-13 | A kind of method of hypergravity rare-earth separating slag middle rare earth resource |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310416337.6A CN103451442B (en) | 2013-09-13 | 2013-09-13 | A kind of method of hypergravity rare-earth separating slag middle rare earth resource |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103451442A true CN103451442A (en) | 2013-12-18 |
| CN103451442B CN103451442B (en) | 2016-05-11 |
Family
ID=49734273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310416337.6A Active CN103451442B (en) | 2013-09-13 | 2013-09-13 | A kind of method of hypergravity rare-earth separating slag middle rare earth resource |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103451442B (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105197932A (en) * | 2015-09-24 | 2015-12-30 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for enriching titanium carbide in carbide slag |
| CN105886789A (en) * | 2016-06-03 | 2016-08-24 | 北京科技大学 | Method for purifying aluminum and aluminum alloy melt through supergravity filtering and recombination |
| CN106148736A (en) * | 2016-08-04 | 2016-11-23 | 北京科技大学 | Ferrum, slag and the device and method of rare-earth phase in cryogenic separation Rare Earth Mine reduced ore |
| CN106378252A (en) * | 2016-09-29 | 2017-02-08 | 中国地质科学院矿产综合利用研究所 | Beneficiation and enrichment method for primary scandium ore |
| CN107755103A (en) * | 2017-12-04 | 2018-03-06 | 中国恩菲工程技术有限公司 | Hypergravity grading plant |
| CN109402316A (en) * | 2018-10-22 | 2019-03-01 | 江西理工大学 | A kind of neodymium iron boron waste material acid leaching residue flash reduction hypergravity slag finance divides the method for synthetical recovery |
| CN109457116A (en) * | 2018-10-22 | 2019-03-12 | 江西理工大学 | A kind of method of neodymium iron boron waste material shower roasting hypergravity slag finance point |
| CN109487028A (en) * | 2018-10-22 | 2019-03-19 | 江西理工大学 | A kind of double methods dodged hypergravity slag finance and divide synthetical recovery of neodymium iron boron waste material |
| CN110904340A (en) * | 2019-12-10 | 2020-03-24 | 武翠莲 | Method for removing harmful elements and impurities in iron-containing mixture by centrifugation |
| CN110923479A (en) * | 2019-12-06 | 2020-03-27 | 中南大学 | Zone melting device and zone melting method for high-purity indium |
| CN113930630A (en) * | 2021-10-18 | 2022-01-14 | 北京科技大学 | Method and equipment for separating different rare earth elements in rare earth concentrate in super-gravity gradient manner |
| CN113929107A (en) * | 2021-10-18 | 2022-01-14 | 北京科技大学 | Method and equipment for solidifying sodium element in red mud by virtue of supergravity |
| CN113943869A (en) * | 2021-10-18 | 2022-01-18 | 北京科技大学 | Method for solidifying chromium element in chromium-containing steel slag by virtue of supergravity |
| CN115418507A (en) * | 2022-09-30 | 2022-12-02 | 内蒙古科技大学 | Method for separating rare earth from rare earth slag by natural gravity settling |
| CN115558809A (en) * | 2022-09-29 | 2023-01-03 | 有研稀土高技术有限公司 | Method and device for vacuum melting and purifying rare earth metal under super-gravity field |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1253185A (en) * | 1998-11-10 | 2000-05-17 | 东北大学 | Process for separating titanium component from titanium-contained slags |
| CN201209160Y (en) * | 2008-01-28 | 2009-03-18 | 孙利涵 | Ash and metal separation processor |
| CN102534236A (en) * | 2012-02-20 | 2012-07-04 | 武汉科技大学 | Method for recovering valuable metal from metallurgical slag materials |
| CN103361451A (en) * | 2013-06-21 | 2013-10-23 | 北京科技大学 | Method for separating titanium resource in titanium slag through super gravity |
-
2013
- 2013-09-13 CN CN201310416337.6A patent/CN103451442B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1253185A (en) * | 1998-11-10 | 2000-05-17 | 东北大学 | Process for separating titanium component from titanium-contained slags |
| CN201209160Y (en) * | 2008-01-28 | 2009-03-18 | 孙利涵 | Ash and metal separation processor |
| CN102534236A (en) * | 2012-02-20 | 2012-07-04 | 武汉科技大学 | Method for recovering valuable metal from metallurgical slag materials |
| CN103361451A (en) * | 2013-06-21 | 2013-10-23 | 北京科技大学 | Method for separating titanium resource in titanium slag through super gravity |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105197932A (en) * | 2015-09-24 | 2015-12-30 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for enriching titanium carbide in carbide slag |
| CN105197932B (en) * | 2015-09-24 | 2017-03-22 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for enriching titanium carbide in carbide slag |
| CN105886789A (en) * | 2016-06-03 | 2016-08-24 | 北京科技大学 | Method for purifying aluminum and aluminum alloy melt through supergravity filtering and recombination |
| CN106148736B (en) * | 2016-08-04 | 2019-02-15 | 北京科技大学 | The device and method of iron, slag and rare-earth phase in cryogenic separation Rare Earth Mine reduced ore |
| CN106148736A (en) * | 2016-08-04 | 2016-11-23 | 北京科技大学 | Ferrum, slag and the device and method of rare-earth phase in cryogenic separation Rare Earth Mine reduced ore |
| CN106378252A (en) * | 2016-09-29 | 2017-02-08 | 中国地质科学院矿产综合利用研究所 | Beneficiation and enrichment method for primary scandium ore |
| CN107755103A (en) * | 2017-12-04 | 2018-03-06 | 中国恩菲工程技术有限公司 | Hypergravity grading plant |
| CN109402316A (en) * | 2018-10-22 | 2019-03-01 | 江西理工大学 | A kind of neodymium iron boron waste material acid leaching residue flash reduction hypergravity slag finance divides the method for synthetical recovery |
| CN109457116A (en) * | 2018-10-22 | 2019-03-12 | 江西理工大学 | A kind of method of neodymium iron boron waste material shower roasting hypergravity slag finance point |
| CN109487028A (en) * | 2018-10-22 | 2019-03-19 | 江西理工大学 | A kind of double methods dodged hypergravity slag finance and divide synthetical recovery of neodymium iron boron waste material |
| CN109402316B (en) * | 2018-10-22 | 2020-08-28 | 江西理工大学 | Financial-division comprehensive recovery method for rapidly reducing supergravity slag from neodymium-iron-boron waste acid leaching slag |
| CN109487028B (en) * | 2018-10-22 | 2020-09-01 | 江西理工大学 | Double-flash supergravity slag financial division comprehensive recovery method for neodymium iron boron waste |
| CN110923479B (en) * | 2019-12-06 | 2024-03-26 | 中南大学 | Zone melting device and zone melting method for high-purity indium |
| CN110923479A (en) * | 2019-12-06 | 2020-03-27 | 中南大学 | Zone melting device and zone melting method for high-purity indium |
| CN110904340A (en) * | 2019-12-10 | 2020-03-24 | 武翠莲 | Method for removing harmful elements and impurities in iron-containing mixture by centrifugation |
| CN113929107A (en) * | 2021-10-18 | 2022-01-14 | 北京科技大学 | Method and equipment for solidifying sodium element in red mud by virtue of supergravity |
| CN113943869A (en) * | 2021-10-18 | 2022-01-18 | 北京科技大学 | Method for solidifying chromium element in chromium-containing steel slag by virtue of supergravity |
| CN113929107B (en) * | 2021-10-18 | 2022-05-03 | 北京科技大学 | Method and equipment for solidifying sodium element in red mud by virtue of supergravity |
| CN113930630A (en) * | 2021-10-18 | 2022-01-14 | 北京科技大学 | Method and equipment for separating different rare earth elements in rare earth concentrate in super-gravity gradient manner |
| CN115558809A (en) * | 2022-09-29 | 2023-01-03 | 有研稀土高技术有限公司 | Method and device for vacuum melting and purifying rare earth metal under super-gravity field |
| CN115558809B (en) * | 2022-09-29 | 2023-07-25 | 有研稀土高技术有限公司 | Method and device for purifying rare earth metal by vacuum smelting under hypergravity field |
| CN115418507A (en) * | 2022-09-30 | 2022-12-02 | 内蒙古科技大学 | Method for separating rare earth from rare earth slag by natural gravity settling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103451442B (en) | 2016-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103451442B (en) | A kind of method of hypergravity rare-earth separating slag middle rare earth resource | |
| CN103361451B (en) | A kind of hypergravity is separated the method for titanium resource in titanium slag | |
| CN103451329B (en) | A kind of hypergravity is separated the method for Vanadium in Vanadium Residue resource | |
| Lan et al. | A green method of respectively recovering rare earths (Ce, La, Pr, Nd) from rare-earth tailings under super-gravity | |
| CN101586188B (en) | Two-stage roasting mineral smelting integrated technique of laterite | |
| CN103484590B (en) | A kind of v-bearing steel slag smelts the method for the rich vanadium pig iron | |
| CN106987673B (en) | A kind of method that selecting smelting combination is enriched with niobium from titaniferous ferro-niobium concentrate | |
| CN104141018B (en) | A kind of slag recoverying and utilizing method | |
| CN106676281A (en) | Process for comprehensively recycling copper and iron through ore phase restructuring of copper smelting molten slag | |
| CN106824543A (en) | A kind of method that copper smelting slag reclaims copper | |
| CN103074456A (en) | Method for recycling iron from waste red mud in alumina production | |
| CN105154659A (en) | Method for synchronously extracting iron and niobium from Bayan Obo low-grade ores | |
| CN104046782B (en) | Tungstenic, iron industrial waste and low difficulty select ferberite recovery method | |
| CN104109763B (en) | A kind of difficult containing noble metal materials smelting technology | |
| CN101775485A (en) | Discarded tailing preconcentration-magnetizing roast iron-extracting and sulphur-reducing beneficiation method of sulphur-smelting cinder | |
| CN103639069B (en) | Equipment, the method and system of boron resource in hypergravity separating boron slag | |
| CN105779778B (en) | A kind of dilution method of copper smelting slag | |
| CN107098577A (en) | A kind of method and system for processing red mud | |
| CN102108438A (en) | Method for producing pellets from laterite-nickel ore | |
| CN106148736A (en) | Ferrum, slag and the device and method of rare-earth phase in cryogenic separation Rare Earth Mine reduced ore | |
| CN110284011A (en) | A kind of low-grade laterite nickel ore semi-molten state production nickel pig iron technique | |
| CN106222348B (en) | Iron phase and the device and method of rich phosphorus slag in cryogenic separation high-phosphorus iron ore reduced ore | |
| CN106076651A (en) | A kind of froth flotation is enriched with the method for low-grade boracic mine tailing | |
| CN110724821A (en) | Method for comprehensively recovering valuable metals from low-grade multi-metal hazardous wastes | |
| CN105400930B (en) | A kind of method that high diametan of high phosphorus prepares automatic steel and thomas phosphate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |