CN106148687A - The Apparatus and method for that a kind of Rare Earth Mine alkaline process decomposes - Google Patents
The Apparatus and method for that a kind of Rare Earth Mine alkaline process decomposes Download PDFInfo
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- CN106148687A CN106148687A CN201510189432.6A CN201510189432A CN106148687A CN 106148687 A CN106148687 A CN 106148687A CN 201510189432 A CN201510189432 A CN 201510189432A CN 106148687 A CN106148687 A CN 106148687A
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- rare earth
- earth mine
- alkaline process
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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
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Abstract
The invention provides the Apparatus and method for that a kind of Rare Earth Mine alkaline process decomposes, described alkaline process resolving device comprises: the grinding container of column type, a high speed agitator is set and equipped with dress abrasive media in grinding container, external heating is set outside grinding container, grinding container is provided with charging aperture and discharging opening, monazite and liquid caustic soda and is decomposed reaction by the grinding of abrasive media and stirring action in the apparatus.The method that the present invention also provides for utilizing Rare Earth Mine alkaline process to decompose Rare Earth Mine.Reaction makes full use of mechanical force activating effect, caustic digestion process and monazite grinding be combined with each other, improve the total resolution ratio of Rare Earth Mine.Achieve and grind and two integrated processes of caustic digestion during the alkaline process of traditional rare earth ore deposit, decrease equipment and occupation of land, simultaneous grinding reaction is carried out under Wet Method Reaction state, it is to avoid present in dry grinding process, radioactive dust pollutes.
Description
Technical field
The present invention relates to the Apparatus and method for that a kind of Rare Earth Mine alkaline process decomposes, specifically there is stirring and grind
Grind the equipment for Rare Earth Mine caustic digestion in dual-use function, belong to Rare Earth Mine and smelt production field.
Background technology
Industrial, process the rare earths such as monazite, xenotime, even bastnaesite, packet header mixed type Rare Earth Mine
Ore deposit, frequently with Caustic soda decomposition method, for ensureing to decompose and improve decomposition rate, increases unit production capacity, traditional handicraft
First dry or wet abrasive material obtains-200 mesh, and the Rare Earth Mine of even-325 mesh enters with using burning liquid caustic soda preparation
Decomposer, decomposer uses steam jacket heating to make reaction carry out at relatively high temperatures.Continuous print feeds and goes out
Material, it is ensured that react under decomposition temperature, alkali converts and reaches the purpose that rare earth separates with phosphorus.
The major defect of conventional equipment and technique is: need individually to be ground, and grinds and caustic digestion is independent
Carrying out, the response time needed for decomposition reaction is long simultaneously, and caustic digestion course of reaction relies on stirring and makes liquid caustic soda and ore deposit
Thing mixes, and because there is mass transfer problem during liquid-solid reaction, needs by using the increase response time,
Improve reaction temperature, reduce the method such as Rare Earth Mine material size and solve, bring that equipment monomer efficiency is on the low side, energy
The consumption problem such as increase, also has and uses the mode improving mixing speed to improve solid-liquid mass-transfer efficiency, but practical operation
Finding according to stirring paddle peripheral speed meter, when reaching more than 2m/s, liquid-solid reaction is no longer with mixing speed
Raising and accelerate, it would therefore be highly desirable to use a kind of novel Rare Earth Mine caustic digestion consersion unit and technique.
Summary of the invention
The invention provides the Apparatus and method for that a kind of Rare Earth Mine alkaline process decomposes, equipment possesses grinding as shown in the figure
With stirring reaction dual function, this equipment and technique have the advantage that
Described resolving device is the grinding container of a column type, sets a high speed agitator in grinding container
(1) and equipped with dress abrasive media (2), external heating (3) is set outside grinding container, grinding container sets
There are charging aperture (4) and discharging opening (5).
Described abrasive media is at least in rustless steel, carbon steel material, glass, ceramic material round
Kind.
The mode of heating that described external heating uses can be steam external heat, oil bath external heat, eddy current, far
In Infrared Heating at least one, it is preferred to use Far-infrared Heating mode.
Described Rare Earth Mine alkaline process catabolic process is as follows:
1) Rare Earth Mine and liquid caustic soda are loaded grinding container, grinding and reacting under stirring action；
2) liquid caustic soda and Rare Earth Mine concentrate liquid-solid ratio are 1.5:1-10:1, and reaction temperature is 80 DEG C-350 DEG C；
3) mixing speed reacted is 1-5m/s in stirring paddle outer most edge linear velocity, and the response time is 0.5
Hours-48 hours；
4) abrasive media loading is account for cumulative volume under grinding container liquid level 10% 50%；
5) reaction terminates the earth solution after rear discharge hole for discharge is decomposed.
Described Rare Earth Mine includes monazite, packet header mixed rare earth concentrate, xenotime, fergusonite, fluorine
At least one in carbon cerium ore deposit, content of rare earth is 30%REO-65%REO.
Described liquid caustic soda is at least one in sodium hydroxide, potassium hydroxide, and concentration is 20%-75%.
During described alkaline process processes Rare Earth Mine, abrasive media loading is overall for accounting under grinding container liquid level
Long-pending 10% 30%.
Beneficial effects of the present invention is as follows:
1, mechanical force activating effect is made full use of, it is achieved Rare Earth Mine high-efficient alkali is decomposed, reduces liquid caustic soda and energy
Source consumes, and improves total resolution ratio.
2, caustic digestion process and Rare Earth Mine grinding are be combined with each other, it is achieved that tradition is ground and caustic digestion two
Integrated process, decreases equipment and occupation of land, simplifies operation sequence.
3, griding reaction is carried out under Wet Method Reaction state, it is to avoid rare earth present in dry grinding process
Ore deposit concomitant radioactivity dust pollution.
Accompanying drawing explanation
Fig. 1 illustrates the equipment that a kind of Rare Earth Mine alkaline process decomposes, and it includes 1. high-speed stirred, 2. grinding medium
Matter, the most external heating, 4. charging aperture, 5. discharging opening.
Detailed description of the invention
Embodiment 1
By in equipment charging aperture (4) by the 51.2% of-100 mesh monazite, being simultaneously introduced concentration is
The liquid caustic soda of 45%, liquid-solid ratio is 3:1, is heated at 140 DEG C by external far infrared heater (3),
High speed agitator (1) mixing speed is 4.9m/s according to stirring paddle outer most edge linear velocity, and abrasive media is filled
Amount, for accounting in cell body under liquid level the 15% of cumulative volume, drives abrasive media (2) by high speed agitator (1)
It is stirred and griding reaction, 8.5 hours response time, finally by discharging opening (5) discharging, monazite
Resolution ratio is 98.3%.
Comparative example 1
Being added in traditional agitator tank by the monazite of the 51.2%REO of-325 mesh, being simultaneously introduced concentration is 45%
Liquid caustic soda size mixing, liquid-solid ratio is 3:1, mixing speed according to stirring paddle outer most edge calculate linear velocity be 1.5m/s,
Employing steam heats, and cell body temperature is at 140 DEG C, and discharging after reacting 17.5 hours, monazite resolution ratio is
95.8%.
Comparative example 2
Being added in traditional agitator tank by the monazite of the 51.2%REO of-325 mesh, being simultaneously introduced concentration is 45%
Liquid caustic soda size mixing, liquid-solid ratio is 3:1, use steam heating, mixing speed according to stirring paddle outer most edge calculate
Linear velocity is 1.5m/s, and cell body temperature is at 140 DEG C, after reacting 8.5 hours, reacts after finally obtaining decomposition
Slurry, through filtration washing, is analyzed in alkali cake and is calculated after the content of rare earth hydrate, and monazite resolution ratio is
76.3%.
Embodiment 1 and comparative example 1, comparative example 2 compare, and the equipment of the technical program carries out alkali and divides
Solve reaction because using high-speed stirred and lapping mode, in the case of Rare Earth Mine material size is thicker, real
Rare Earth Mine high-efficient alkali in the present shorter response time decomposes.
Embodiment 2
By being directly added into-50 mesh content of rare earth 63.5%REO bastnaesites in equipment charging aperture (4),
Being simultaneously introduced the liquid caustic soda that concentration is 20%, liquid-solid ratio is 10:1, is added by external steam heater (3)
At heat to 80 DEG C, mixing speed is 2.5m/s in stirring paddle outer most edge linear velocity, and abrasive media loading is
Account in cell body under liquid level the 50% of cumulative volume, drive abrasive media (2) to carry out by high speed agitator (1)
Stirring and griding reaction, in 7 hours response time, finally by discharging opening (5) discharging, bastnaesite decomposes
Rate is 97.6%.
Embodiment 3
By being directly added into-200 mesh grade 31.2%REO xenotimes in equipment charging aperture (4), add simultaneously
Entering the liquid caustic soda that concentration is 35%, liquid-solid ratio is 1.5:1, is heated to 350 by external eddy current heating device (3)
At DEG C, mixing speed is 1.5m/s in stirring paddle outer most edge linear velocity, and abrasive media loading is for accounting in cell body
Under liquid level the 30% of cumulative volume, abrasive media (2) is driven to be stirred and grind by high speed agitator (1)
Mill reaction, in 5 hours response time, finally by discharging opening (5) discharging, xenotime resolution ratio is 98.2%.
Embodiment 4
Dilute by being directly added into-325 mesh grade 53.3%REO packet header mixed types in equipment charging aperture (4)
Rhizoma Panacis Japonici ore deposit, is simultaneously introduced the liquid caustic soda that concentration is 60%, and liquid-solid ratio is 5:1, by external oil bath heater
(3) being heated at 120 DEG C, mixing speed is 3.5m/s in stirring paddle outer most edge linear velocity, abrasive media
Loading is to account in cell body under liquid level the 20% of cumulative volume, drives abrasive media (2) by high speed agitator (1)
Being stirred and griding reaction, 8 hours response time, finally by discharging opening (5) discharging, packet header mixes
Type Rare Earth Concentrate Decomposition rate is 97.7%.
Claims (7)
1. the equipment that a Rare Earth Mine alkaline process decomposes, it is characterised in that described resolving device is a column type
Grinding container, set in grinding container a high speed agitator (1) and equipped with dress abrasive media (2),
Arranging external heating (3) outside grinding container, grinding container is provided with charging aperture (4) and discharging opening (5).
The equipment that Rare Earth Mine alkaline process the most according to claim 1 decomposes, it is characterised in that described grinding
Medium is at least one in rustless steel, carbon steel material, glass, ceramic material round.
The equipment that Rare Earth Mine alkaline process the most according to claim 1 decomposes, it is characterised in that described external add
The mode of heating of thermal recovery can be in steam external heat, oil bath external heat, eddy current, Far-infrared Heating
At least one, it is preferred to use Far-infrared Heating mode.
4. utilize the method that Rare Earth Mine alkaline process resolving device as described in claim 1-3 is arbitrary decomposes Rare Earth Mine, its
Being characterised by, described Rare Earth Mine alkaline process catabolic process is as follows:
1) Rare Earth Mine and liquid caustic soda are loaded grinding container, grinding and reacting under stirring action；
2) liquid caustic soda and Rare Earth Mine concentrate liquid-solid ratio are 1.5:1-10:1, and reaction temperature is 80 DEG C-350 DEG C；
3) mixing speed reacted is 1-5m/s in stirring paddle outer most edge linear velocity, and the response time is 0.5
Hours-48 hours；
4) abrasive media loading is account for cumulative volume under grinding container liquid level 10% 50%；
5) reaction terminates the earth solution after rear discharge hole for discharge is decomposed.
The method that Rare Earth Mine alkaline process the most according to claim 4 decomposes, it is characterised in that described rare earth
Ore deposit includes in monazite, packet header mixed rare earth concentrate, xenotime, fergusonite, bastnaesite
At least one, content of rare earth is 30%REO-65%REO.
The method that Rare Earth Mine alkaline process the most according to claim 4 decomposes, it is characterised in that described liquid
Alkali is at least one in sodium hydroxide, potassium hydroxide, and concentration is 20%-75%.
The method that Rare Earth Mine alkaline process the most according to claim 4 decomposes, it is characterised in that described alkaline process
Processing during Rare Earth Mine, abrasive media loading is to account under grinding container liquid level the 10% of cumulative volume
30%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510189432.6A CN106148687A (en) | 2015-04-21 | 2015-04-21 | The Apparatus and method for that a kind of Rare Earth Mine alkaline process decomposes |
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| CN201510189432.6A CN106148687A (en) | 2015-04-21 | 2015-04-21 | The Apparatus and method for that a kind of Rare Earth Mine alkaline process decomposes |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109735706A (en) * | 2019-01-31 | 2019-05-10 | 湖南中核金原新材料有限责任公司 | A method of monazite is handled using two sections of thermokalite decomposition techniques |
| CN109735705A (en) * | 2019-01-31 | 2019-05-10 | 湖南省欧华科技有限公司 | A method of utilizing two sections of thermokalite decomposition technique processing rare earth ore concentrates of working continuously |
| CN112961995A (en) * | 2020-12-02 | 2021-06-15 | 湖南中核金原新材料有限责任公司 | Method for improving monazite concentrate alkali decomposition rate |
| CN116590547A (en) * | 2023-05-29 | 2023-08-15 | 山东域潇有色新材料有限公司 | Device and process for decomposing and dissolving monazite mineral powder by alkaline method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2038500U (en) * | 1988-10-30 | 1989-05-31 | 包钢稀土二厂 | Vortex shape electric heater for digesting rare-earth concentrate ore with soda |
| CN1142542A (en) * | 1995-07-04 | 1997-02-12 | 山东微山华能稀土总公司 | Process and apparatus for preparing chlorinated rare-earth from fine rare-earth minerals by alkali water heating process |
| CN202246783U (en) * | 2011-08-05 | 2012-05-30 | 吴泉锦 | Novel reaction device for rare-earth alkaline leached material |
-
2015
- 2015-04-21 CN CN201510189432.6A patent/CN106148687A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2038500U (en) * | 1988-10-30 | 1989-05-31 | 包钢稀土二厂 | Vortex shape electric heater for digesting rare-earth concentrate ore with soda |
| CN1142542A (en) * | 1995-07-04 | 1997-02-12 | 山东微山华能稀土总公司 | Process and apparatus for preparing chlorinated rare-earth from fine rare-earth minerals by alkali water heating process |
| CN202246783U (en) * | 2011-08-05 | 2012-05-30 | 吴泉锦 | Novel reaction device for rare-earth alkaline leached material |
Non-Patent Citations (1)
| Title |
|---|
| 邱竹贤: "《高等学校教学用书-有色金属冶金学》", 31 May 1988, 冶金工业出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109735706A (en) * | 2019-01-31 | 2019-05-10 | 湖南中核金原新材料有限责任公司 | A method of monazite is handled using two sections of thermokalite decomposition techniques |
| CN109735705A (en) * | 2019-01-31 | 2019-05-10 | 湖南省欧华科技有限公司 | A method of utilizing two sections of thermokalite decomposition technique processing rare earth ore concentrates of working continuously |
| CN109735705B (en) * | 2019-01-31 | 2021-08-06 | 湖南欧华科技有限公司 | Method for treating rare earth concentrate by utilizing two-stage continuous operation thermokalite decomposition process |
| CN112961995A (en) * | 2020-12-02 | 2021-06-15 | 湖南中核金原新材料有限责任公司 | Method for improving monazite concentrate alkali decomposition rate |
| CN116590547A (en) * | 2023-05-29 | 2023-08-15 | 山东域潇有色新材料有限公司 | Device and process for decomposing and dissolving monazite mineral powder by alkaline method |
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Application publication date: 20161123 |