CN108034842A - Ion type rareearth ore is without the environmentally protective production practice of ammoniumization - Google Patents
Ion type rareearth ore is without the environmentally protective production practice of ammoniumization Download PDFInfo
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- CN108034842A CN108034842A CN201711272172.4A CN201711272172A CN108034842A CN 108034842 A CN108034842 A CN 108034842A CN 201711272172 A CN201711272172 A CN 201711272172A CN 108034842 A CN108034842 A CN 108034842A
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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
-
- 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
-
- 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
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
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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
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
- C22B3/46—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes by substitution, e.g. by cementation
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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
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- General Chemical & Material Sciences (AREA)
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Abstract
It is as follows without the environmentally protective production practice of ammoniumization, step the invention discloses ion type rareearth ore：The certain density no ammonium leaching ore deposit agent of liquid injection hole injection laid out of stope, occurs ion-exchange reactions with rare-earth mineral, obtains the mother liquor of enrichment rare-earth cation；Mother liquor seepage flow, converge in the liquid collecting engineering such as the natural water proof bottom plate of ore bed or artificial liquid collecting tunnel collocation liquid collecting deflector hole；Hydrometallurgy workshop is transported to by main transport pipeline again, using no ammonium medicament impurity-removing precipitating, obtains rare earth carbonate, supernatant is recycled back to liquid pool, and return to stope after overregulating pH value, addition medicament soaks ore deposit agent as new without ammonium.The advantage of the invention is that：Whole process is realized without ammonium, friendly to soil, water body environment；Produce waste water circulation comprehensive to utilize, without the outer row of useless evil；Rare earth ion leaching rate, liquid collecting rate and rate of deposition are high, improve resource and pick up comprehensive recovery.
Description
Technical field
The present invention relates to the environmentally protective production technique field of ion type rareearth ore, more particularly to ion type rareearth ore is without ammonium
Production technique.
Background technology
Weathering crust ion adsorption type re is the distinctive rare earth mineral found in Jiangxi in 1969, and rare earth element is in mainly
Hydration or hydroxyl hydrated cation preservation leach precipitation in weathering crust clay mineral, by cation exchange and obtain rare earth element
Product.
The production of Rare-earth Mine experienced multiple great change from mining type to coprecipitation mode is leached.The warp from mining
Pond leaching-dump leaching-in_situ leaching has been gone through, indoor salt bucket leaching-field ammonium sulfate pond leaching-field sulphur is experienced from Leaching way
Sour ammonium in_situ leaching, the oxalic acid secondary precipitation+extraction method of dividision into groups-oxalate precipitation method-carbon ammonium precipitation method is experienced from coprecipitation mode.
Carbon ammonium precipitation technology studied maturation for 1985 by University Of Nanchang, its precipitated products can be directly entered follow-up rare earth without calcination
Separation, and can be returned after the supernatant acidifying after precipitating and make leachate, reduce discharge of wastewater and pollution, but its technical requirements
Harshness, is unfavorable for improving production efficiency, the growth to benefit has restriction.
The production of existing Rare-earth Mine is mainly ammonium sulfate leaching ore deposit+carbon ammonium precipitation, most of using in_situ leaching
Mode.This mode of production reduces production cost, reduces the stripping of earth's surface and the stacking of waste residue, reduces water quality dirt
Dye, preferably protects surface vegetation and ecological environment, but solve the problems, such as without basic：
1. the technical problem of most critical
Used leaching ore deposit agent, impurity-removing precipitating agent contain ammonium ion, are entered with leaching ore deposit agent in massif, if phase
Pass technology and engineering are unqualified, then there is a possibility that soaking ore deposit agent leaks into underground water, so as to cause soil and surrounding body
Middle ammonia nitrogen, sulfate etc. are exceeded, cause environmental pollution.
Meanwhile in_situ leaching production process injects a large amount of leaching ore deposit agent into massif, massif is chronically at immersion or even is satisfied
And state, soil physicochemical characteristic is changed, the excavation of the engineering such as earth's surface and ground lower groove, tunnel, destroys and stablize originally in addition
With the stress of primary rock system of balance, the geological disasters such as landslide, surface subsidence are caused to occur.
2. peripheral issue
Original leaching ore deposit agent, the effect unobvious of impurity-removing precipitating agent, rare earth leaching rate is relatively low, and impurity-removing precipitating rate is relatively low, dilute
The soil resource rate of recovery is low, so as to cause rare earth loss and the wasting of resources.
The content of the invention
The present invention is intended to provide it is dirty to solve soil, water body environment without the environmentally protective production practice of ammoniumization for ion type rareearth ore
Dye is serious；The problem of leaching ore deposit, removal of impurities, deposition efficiency are low, and rare earth resources comprehensive recovery is low.
Ion type rareearth ore comprises the following steps without the environmentally protective production practice of ammoniumization：
(1) liquid injection hole is laid in the stope chosen, utilizes the natural water proof bottom plate of ore bed or the artificial liquid collecting lane of arrangement
Road, and liquid collecting deflector hole i.e. water drilling of arranging in pairs or groups carries out liquid collecting；
(2) injected from liquid injection hole and soak ore deposit agent without ammonium；
(3) ion-exchange reactions occurs with rare-earth mineral without ammonium leaching ore deposit agent, obtains the mother liquor of enrichment rare earth, seepage flow, convergence
To the natural water proof bottom plate of ore bed or artificial liquid collecting tunnel, into mother liquor collecting pit；
(4) mother liquor obtains rare earth by conveyance conduit to hydrometallurgy workshop successively by removal of impurities, precipitation and the processing of press filtration link
Carbonate products；
(5) supernatant filtered out i.e. waste water is recycled to liquid pool, and by adjusting pH value, addition medicament is prepared into new no ammonium
Soak ore deposit agent；
(6) freshly prepd no ammonium leaching ore deposit agent is passed through into pipeline to the new stope for meeting step (1).
Further, the no ammonium leaching ore deposit agent includes a kind of in Adlerika, liquor ferri trichloridi, aluminum trichloride solution
It is or two or more.
Further, the mass fraction of the Adlerika is 2%-5%.
Further, the mass fraction of the liquor ferri trichloridi is 0.2%-1%.
Further, the mass fraction of the aluminum trichloride solution is 0.5%-1%.
Further, it is sodium hydroxide, sodium carbonate or sodium acid carbonate without ammonium medicament i.e. cleaner to be used in dedoping step
In one kind.
Further, cleaned using sodium hydroxide, pH is adjusted to 5.3.
Further, cleaned using sodium carbonate, pH is adjusted to 5.3 ± 0.1.
Further, cleaned using sodium acid carbonate, pH is adjusted to 5.3 ± 0.1.
Further, the precipitating reagent used in precipitation process is sodium acid carbonate, and pH is adjusted to 5.3 ± 0.1.
The advantage of the invention is that：
1st, without ammonium, it is pollution-free, comprehensive recovery is high the characteristics of, meet environmentally protective requirement.The leaching ore deposit agent institute of use
Originally it is the essential element in ore body and soil containing pantogen, whole technique does not bring massif into from outside pollution sources；Utilize
Production waste water and rare earth waste regeneration leaching ore deposit agent, which reach, to be recycled, and is avoided and is arranged outside leaching ore deposit agent, while reduces rare earth resources
It is lost in, improves resource comprehensive utilization rate；The big advantage of the process makes full use iron, aluminium environmental carrying capacity, avoids ammonia and nitrogen pollution, symbol
Country is closed without ammonium, free of contamination environmentally protective policy requirements；
2nd, it is good to soak ore deposit agent Adlerika permeance property, can preferably arrange in pairs or groups with the rock ore deposit characteristic of ion type rareearth；
3rd, it is best to soak ore deposit agent liquor ferri trichloridi effect, liquor ferri trichloridi infiltration is strong, and early, not trailing occurs in peak, dilute
Soil can be with Rapid Leaching, and leaching efficiency is high, and leaching ore deposit effect is used in combination than single significant effect with Adlerika, can be low
Concentration, which leaches, to be used, and impurity leaching is low.
Brief description of the drawings
Fig. 1 is the stope structure schematic diagram using the natural water proof bottom plate of ore bed；
Fig. 2 is the stope structure schematic diagram using artificial liquid collecting tunnel and liquid collecting deflector hole；
Fig. 3 is the structure schematic top plan view in artificial liquid collecting tunnel.
Embodiment
Below in conjunction with the embodiment in the present invention, the technical solution in the present invention is clearly and completely described.It is aobvious
So, described is only part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention,
Those of ordinary skill in the art's all other embodiments obtained on the premise of creative work is not made, belong to this
Invent the scope of protection.
Using the leaching ore deposit agent of each embodiment, cleaner, precipitating reagent in Tables 1 and 2, carried out respectively by following processing step
Soak ore deposit：
(1) liquid injection hole is laid by certain net degree in the stope chosen, using the natural water proof bottom plate of ore bed or by one
Determining deviation arranges artificial liquid collecting tunnel, and the liquid collecting deflector hole for certain specification of arranging in pairs or groups i.e. water drilling carries out liquid collecting；
(2) injected from liquid injection hole and soak ore deposit agent without ammonium；
(3) as shown in Figure 1, being the stope using the natural water proof bottom plate of ore bed in Fig. 1, liquid injection hole 5, note are laid in stope
Fluid apertures 5 passes through topsoil 1, extends to completely decomposed layer 2, and no ammonium leaching ore deposit agent flows into completely decomposed layer 2, half weathered layer from liquid injection hole 5
3, ion-exchange reactions occurs with rare-earth mineral, obtains the mother liquor of enrichment rare-earth cation, mother liquor is in dead weight and fluid injection pressure (dynamic)
The power effect natural water proof bottom plate 4 of lower edge ore bed converges, into mother liquor collecting pit；
Alternatively,
As shown in Fig. 2, be to apply artificial liquid collecting tunnel in Fig. 2, and the stope of the liquid collecting deflector hole for certain specification of arranging in pairs or groups, note
Fluid apertures 24 extends to completely decomposed layer 22 through topsoil 21, be located in artificial liquid collecting tunnel 25 ore bed original phreatic line 26 it
On, liquid collecting deflector hole is equipped between liquid injection hole 24 and manually liquid collecting tunnel 25, no ammonium leaching ore deposit agent flows into full blast from liquid injection hole 24
Change 22 rare-earth mineral of layer and ion-exchange reactions occurs, obtain the mother liquor of enrichment rare-earth cation, mother liquor is in dead weight and fluid injection pressure
The lower seepage flow of (dynamic) power effect, converge to artificial liquid collecting tunnel, into mother liquor collecting pit 7.
(4) mother liquor is successively handled by conveyance conduit to hydrometallurgy workshop by the removal of impurities of no ammonium medicament, precipitation and press filtration link,
Obtain rare earth carbonate product；
(5) supernatant filtered out i.e. waste water is recycled to liquid pool, and by adjusting pH value, addition medicament is prepared into new leaching ore deposit
Agent；
(6) freshly prepd no ammonium leaching ore deposit agent is passed through into pipeline to the new stope for meeting step (1).
Leaching ore deposit effect also together embodies in table.
Table 1：
Table 2
Note：The concentration that ore deposit agent is soaked in Tables 1 and 2 refers to mass fraction, precipitant concentration be solute and weight of solvent part it
Than.
Above content is that a further detailed description of the present invention in conjunction with specific preferred embodiments, it is impossible to is assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of not departing from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention's
Protection domain.
Claims (10)
1. ion type rareearth ore is without the environmentally protective production practice of ammoniumization, it is characterised in that comprises the following steps：
(1) liquid injection hole is laid in the stope chosen, using the natural water proof bottom plate of ore bed or the artificial liquid collecting tunnel of arrangement, and
Liquid collecting deflector hole, that is, water drilling of arranging in pairs or groups carries out liquid collecting；
(2) injected from liquid injection hole and soak ore deposit agent without ammonium；
(3) ion-exchange reactions occurs with rare-earth mineral without ammonium leaching ore deposit agent, obtains the mother liquor of enrichment rare earth, seepage flow, converge to ore deposit
The natural water proof bottom plate of layer or artificial liquid collecting tunnel, into mother liquor collecting pit；
(4) mother liquor is successively handled by conveyance conduit to hydrometallurgy workshop by the removal of impurities of no ammonium medicament, precipitation and press filtration link, is obtained
Rare earth carbonate product；
(5) supernatant filtered out i.e. waste water is cycled back to liquid pool, and new no ammonium leaching is prepared into by adjusting pH value, adding medicament
Ore deposit agent；
(6) freshly prepd no ammonium leaching ore deposit agent is passed through into pipeline to the new stope for meeting step (1).
2. ion type rareearth ore is without the environmentally protective production practice of ammoniumization according to claim 1, it is characterised in that the no ammonium
Soaking ore deposit agent includes one or more in Adlerika, liquor ferri trichloridi, aluminum trichloride solution.
3. ion type rareearth ore is without the environmentally protective production practice of ammoniumization according to claim 2, it is characterised in that the sulfuric acid
The mass fraction of magnesium solution is 2%-5%.
4. ion type rareearth ore is without the environmentally protective production practice of ammoniumization according to claim 2, it is characterised in that the trichlorine
The mass fraction for changing ferrous solution is 0.2%-1%.
5. ion type rareearth ore is without the environmentally protective production practice of ammoniumization according to claim 2, it is characterised in that the trichlorine
The mass fraction for changing aluminum solutions is 0.5%-1%.
6. ion type rareearth ore is without the environmentally protective production practice of ammoniumization according to claim 1, it is characterised in that dedoping step
It is middle that use is one kind in sodium hydroxide, sodium carbonate or sodium acid carbonate without ammonium medicament i.e. cleaner.
7. ion type rareearth ore is without the environmentally protective production practice of ammoniumization according to claim 6, it is characterised in that using hydrogen-oxygen
Change sodium removal of impurities, pH is adjusted to 5.3.
8. ion type rareearth ore is without the environmentally protective production practice of ammoniumization according to claim 6, it is characterised in that using carbonic acid
Sodium cleans, and pH is adjusted to 5.3 ± 0.1.
9. ion type rareearth ore is without the environmentally protective production practice of ammoniumization according to claim 6, it is characterised in that using carbonic acid
Hydrogen sodium cleans, and pH is adjusted to 5.3 ± 0.1.
10. ion type rareearth ore is without the environmentally protective production practice of ammoniumization according to claim 1, it is characterised in that precipitated
The precipitating reagent used in journey is sodium acid carbonate, and pH is adjusted to 5.3 ± 0.1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711272172.4A CN108034842A (en) | 2017-12-06 | 2017-12-06 | Ion type rareearth ore is without the environmentally protective production practice of ammoniumization |
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| CN201711272172.4A CN108034842A (en) | 2017-12-06 | 2017-12-06 | Ion type rareearth ore is without the environmentally protective production practice of ammoniumization |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108486373A (en) * | 2018-07-01 | 2018-09-04 | 广西那神晞途环保科技有限公司 | ionic mineral precipitation agent and preparation method thereof |
| CN109402417A (en) * | 2018-12-21 | 2019-03-01 | 中国科学院广州地球化学研究所 | The method for the exploitation Rare Earth Mine that is powered |
| CN111944996A (en) * | 2020-07-10 | 2020-11-17 | 五矿（北京）稀土研究院有限公司 | In-situ ore leaching method for reducing seepage through air seal |
| CN112410554A (en) * | 2020-11-02 | 2021-02-26 | 江西理工大学 | Environment-friendly extraction method of ionic rare earth ore calcium salt |
| CN114892030A (en) * | 2022-05-11 | 2022-08-12 | 中国地质科学院矿产综合利用研究所 | In-situ ore leaching structure and method based on ionic rare earth slope reinforcement |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111944996A (en) * | 2020-07-10 | 2020-11-17 | 五矿（北京）稀土研究院有限公司 | In-situ ore leaching method for reducing seepage through air seal |
| CN112410554A (en) * | 2020-11-02 | 2021-02-26 | 江西理工大学 | Environment-friendly extraction method of ionic rare earth ore calcium salt |
| CN114892030A (en) * | 2022-05-11 | 2022-08-12 | 中国地质科学院矿产综合利用研究所 | In-situ ore leaching structure and method based on ionic rare earth slope reinforcement |
| CN114892030B (en) * | 2022-05-11 | 2023-10-17 | 中国地质科学院矿产综合利用研究所 | In-situ mineral leaching structure and method based on ionic rare earth slope reinforcement |
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