CN105506314B - A kind of method from volcanic rock ion type rareearth ore recovering rare earth rich solution - Google Patents
A kind of method from volcanic rock ion type rareearth ore recovering rare earth rich solution Download PDFInfo
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- CN105506314B CN105506314B CN201510950305.3A CN201510950305A CN105506314B CN 105506314 B CN105506314 B CN 105506314B CN 201510950305 A CN201510950305 A CN 201510950305A CN 105506314 B CN105506314 B CN 105506314B
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- rare earth
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- ore
- weathered layer
- rich solution
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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
- C22B59/00—Obtaining rare earth metals
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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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by 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
The present invention relates to a kind of method from volcanic rock ion type rareearth ore recovering rare earth rich solution, it is characterised in that：High 1.6 1.8m in section, wide 0.6 0.8m water conservancy diversion tunnel are opened up close to half weathered layer side in ore body completely decomposed layer, water conservancy diversion tunnel length extends to half weathered layer；50 ~ 80mm of diameter pod apertures are opened up close to micro- weathered layer side in the weathered layer of ore body half, water conservancy diversion hole length extends to micro- weathered layer；It is longitudinally disposed on ore body to be used to fill the fluid injection well for drenching ore leachate.The present invention can improve the rate of recovery for leaching rare earth rich solution.
Description
Technical field
It is specifically a kind of from volcanic rock ion type rareearth ore recovering rare earth the present invention relates to non-ferrous metal extraction technique field
The method of rich solution.
Background technology
Height above sea level is originated in less than 550m, the discrepancy in elevation in 250~60m hilly country in the mineral deposit of ion type rareearth ore mostly,
Be characterized with gentle low mountain and aqueous development, be mainly exposed to the granite or volcanic rock on ground through long-term strong weathering shape
Into, belong to exogenic mineral deposit, mineral deposit is typically distributed in face shape, and unweathered granite or volcanic rock are covered in lens-shaped
On rock mass, its structure can be divided into rotten plant and eluvial layer, completely decomposed layer, half weathered layer, micro- weathered layer and basement rock from top to bottom, its
The thickness of middle completely decomposed layer is maximum, the content highest of rare earth element.The occurrence status of ion type rareearth ore ore middle rare earth are total
The rare earth element of amount 70%~90% adsorbs the clay mineral in ore in the form of hydrated cation or hydroxyl hydrated cation
On, with stable chemical property, outside deionization phase rare earth, other rare earth elements are in water-dissolving phase, colloidal state phase, mineral facies preservation,
Rare earth element only ion type rareearth in current ion type rareearth ore has recovery value.
Rare earth element recyclable at present exists in ionic adsorption form in ion type rareearth ore, using gravity treatment, magnetic separation, floats
The Typical physical beneficiation methods such as choosing can not be by its enriching and recovering, but these rare earth ions run into the more active cation of chemical property
It can be desorbed when (such as Na+, K+, H+, NH+4 etc.) by exchanging, therefore, when using solution (sodium chloride or sulphur containing this cationoid
Acid ammonium solution etc.) eluent ion type Rare Earth Mine when, rare earth ion can be immersed and take out.Currently, leaching technology has gone through
Three generations, the leaching technology of the third generation is to inject leaching agent in the fluid injection well through Seal treatment by head-tank, and leaching agent is to ore deposit
Hole diffusion in body, and the rare earth ion exchanged adsorbed on clay mineral surface is parsed, form rare earth mother solution
Flow into intercepting gutter, treat that rare earth is leached and finish, adding top water makes to remain in leaching agent and the rare earth outflow in ore body, is formed
Low concentration mother liquor gives reuse after processing.
The leaching technology of the current third generation has two ways to flow into rare earth mother solution in intercepting gutter, one be half weathered layer with
Completely decomposed layer junction or completely decomposed layer excavate the high about 1.6-1.8m in section, width about 0.6-0.8m water conservancy diversion tunnel；Two be complete
The pressure release conduction hole of weathered layer or completely decomposed layer and half weathered layer junction construction DN50mm, the note that both modes are opened up
Liquid well is more shallower, is approximately 50cm, and two ways has the disadvantage that：（1）Tunnel is arranged on half weathered layer and completely decomposed layer handing-over
Place or completely decomposed layer, cause completely decomposed layer to adopt rare earth resources amount and are lost because tunnel is excavated, half weathered layer can adopt rare earth money
Source is because ore leachate is exported in tunnel by pressure release and be cannot be introduced into half weathered layer and is leached rare earth, and two aspects cause rare earth to be dug up mine
The rate of recovery is low.（2）Tunnel is arranged on half weathered layer, and because hard can not tunnel of half weathered layer lithology can not be realized.（3）
Rare earth resources can be adopted below conduction hole can not leach recovery.（4）Part leaching ore deposit rich solution is by the interlayer between pod apertures to pod apertures
Permeate below, cause rare earth rich solution to lose.
The content of the invention
The technical problems to be solved by the invention are：There is provided a kind of from volcanic rock ion type rareearth ore recovering rare earth rich solution
Method, this method can overcome the shortcoming of aforesaid way, improve the rate of recovery for leaching rare earth rich solution.
The technical solution adopted in the present invention is：A kind of side from volcanic rock ion type rareearth ore recovering rare earth rich solution is provided
Method, the high 1.6-1.8m in section, width 0.6-0.8m water conservancy diversion tunnel, water conservancy diversion lane are opened up close to half weathered layer side in ore body completely decomposed layer
Road length extends to half weathered layer；50 ~ 80mm of diameter pod apertures, water conservancy diversion are opened up close to micro- weathered layer side in the weathered layer of ore body half
Hole length extends to micro- weathered layer；It is provided for filling the fluid injection well for drenching ore leachate on ore body.
Described pod apertures set 1 ~ 2 layer, pod apertures with the horizontal 1-5 ° of angle, pod apertures interlamellar spacing 50cm ~
500cm, 40 ~ 150cm of pitch of holes.
The depth of the fluid injection well is the thickness of completely decomposed layer.
Method of the invention from volcanic rock ion type rareearth ore recovering rare earth rich solution is by opening up water conservancy diversion tunnel and conduction hole
The mode being combined, that is, avoid completely decomposed layer caused by using tunnel collection pond mode from adopting the loss of rare earth resources amount, be avoided that again
Pod apertures, which are arranged on caused by completely decomposed layer to adopt rare earth resources below pod apertures and can not leach recoverys, part and soak ore deposit rich solution, to be passed through
Interlayer between pod apertures is to infiltration below pod apertures, and the shortcoming for causing rare earth rich solution to lose the method improve leaching ore deposit and drainage
Effect, improve leach rare earth rich solution the rate of recovery.
Brief description of the drawings
Fig. 1 is ore body profile schematic diagram when prior art uses tunnel.
Fig. 2 is ore body profile schematic diagram when prior art uses pod apertures.
Fig. 3 is ore body profile schematic diagram of the invention.
In figure, 1, completely decomposed layer, 2, half weathered layer, 3, micro- weathered layer, 4, fluid injection well, 5, water conservancy diversion tunnel, 6, pod apertures.
Embodiment
The present invention is described in detail below in conjunction with drawings and examples.
As shown in figure 3, a kind of method from volcanic rock ion type rareearth ore recovering rare earth rich solution of the invention, this method is：
Ore body completely decomposed layer 1 opens up the high 1.6-1.8m in section, wide 0.6-0.8m water conservancy diversion tunnel 5, water conservancy diversion tunnel close to the side of half weathered layer 2
5 length extend to half weathered layer 2；50 ~ 80mm of diameter pod apertures 6 are opened up close to micro- side of weathered layer 3 in the weathered layer 2 of ore body half,
The length of pod apertures 6 extends to micro- weathered layer 3；It is provided for filling the fluid injection well 4 for drenching ore leachate on ore body.
In the specific implementation, pod apertures 6 can be configured the present invention according to the thickness of half actual weathered layer 2, can set 1 ~ 2
Layer, it is settable two layers when half weathered layer 2 is thicker, one layer can be set when relatively thin, the exit of pod apertures 6 sets curb, water conservancy diversion
Hole is with the horizontal 1-5 ° of angle, pod apertures interlamellar spacing 50cm ~ 500cm, 40 ~ 150cm of pitch of holes, the depth of ore body fluid injection well 4
Spend for the thickness of completely decomposed layer 1, i.e. insertion completely decomposed layer 1.
The preferably embodiment of the present invention is the foregoing is only, but protection scope of the present invention is not limited to
This, all those familiar with the art are in technical scope disclosed by the invention, technique according to the invention scheme
And its design of the present invention is subject to equivalent substitution or changed to be included within the scope of the present invention.
Claims (2)
1. a kind of method from volcanic rock ion type rareearth ore recovering rare earth rich solution, it is characterised in that：Leaned in ore body completely decomposed layer
Nearly half weathered layer side opens up the .8m of the .8m of high 1 .6 in section ~ 1, wide 0 .6 ~ 0 water conservancy diversion tunnel, and water conservancy diversion tunnel length is extended to
Half weathered layer；50 ~ 80mm of diameter pod apertures are opened up close to micro- weathered layer side in the weathered layer of ore body half, water conservancy diversion hole length prolongs
Reach micro- weathered layer；Described pod apertures set 1 ~ 2 layer, and pod apertures are with the horizontal 1 ~ 5 ° of angle, pod apertures interlamellar spacing
50cm ~ 500cm, 40 ~ 150cm of pitch of holes；It is longitudinally disposed on ore body to be used to fill the fluid injection well for drenching ore leachate.
2. the method according to claim 1 from volcanic rock ion type rareearth ore recovering rare earth rich solution, it is characterised in that：Institute
State thickness of the depth of fluid injection well for completely decomposed layer.
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| CN201510950305.3A CN105506314B (en) | 2015-12-18 | 2015-12-18 | A kind of method from volcanic rock ion type rareearth ore recovering rare earth rich solution |
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| CN201510950305.3A CN105506314B (en) | 2015-12-18 | 2015-12-18 | A kind of method from volcanic rock ion type rareearth ore recovering rare earth rich solution |
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| CN105506314A CN105506314A (en) | 2016-04-20 |
| CN105506314B true CN105506314B (en) | 2017-09-26 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106591605A (en) * | 2016-11-07 | 2017-04-26 | 中铝广西有色稀土开发有限公司 | Deep well liquid collecting method for efficiently recovering ion type rare earth |
| CN106702182B (en) * | 2016-11-30 | 2018-10-30 | 江西理工大学 | A kind of recovery system of re dip solution |
| CN108034842A (en) * | 2017-12-06 | 2018-05-15 | 五矿勘查开发有限公司 | Ion type rareearth ore is without the environmentally protective production practice of ammoniumization |
| CN109469472B (en) * | 2018-12-19 | 2020-12-11 | 四川共拓岩土科技股份有限公司 | In-situ leaching mining method for ionic rare earth ore |
| CN109723382B (en) * | 2019-01-12 | 2020-04-17 | 江西理工大学 | Construction method of horizontal diversion hole |
| CN110484723B (en) * | 2019-08-14 | 2021-03-16 | 武汉工程大学 | Thick weathering crust leaching-type rare earth ore in-situ leaching layered liquid collection system and method |
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| JP4248937B2 (en) * | 2002-06-07 | 2009-04-02 | 昭和電工株式会社 | Method for recovering rare earth oxide from waste liquid containing rare earth element |
| CN103509944A (en) * | 2013-10-25 | 2014-01-15 | 武汉工程大学 | Method for in-situ leaching of rare-earth ores from weathering crust elution-deposited rare earth ore |
| CN104711420B (en) * | 2015-03-31 | 2017-05-03 | 武汉工程大学 | In-situ leaching and liquid collecting method for weathered crust leaching-deposited rare-earth ore |
| CN105063350B (en) * | 2015-09-11 | 2017-05-17 | 四川共拓岩土科技股份有限公司 | Method for improving mother liquor recovery rate in in-situ leaching mining |
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