CN106929673A - A kind of leaching agent of high efficiency extraction ion adsorption type rare earth ore and its preparation and application - Google Patents
A kind of leaching agent of high efficiency extraction ion adsorption type rare earth ore and its preparation and application Download PDFInfo
- Publication number
- CN106929673A CN106929673A CN201710334073.8A CN201710334073A CN106929673A CN 106929673 A CN106929673 A CN 106929673A CN 201710334073 A CN201710334073 A CN 201710334073A CN 106929673 A CN106929673 A CN 106929673A
- Authority
- CN
- China
- Prior art keywords
- leaching agent
- rare earth
- herbaceous plant
- leaching
- culture medium
- 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.)
- Pending
Links
Classifications
-
- 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
- C22B3/18—Extraction of metal compounds from ores or concentrates by wet processes with the aid of microorganisms or enzymes, e.g. bacteria or algae
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- Biotechnology (AREA)
- Geochemistry & Mineralogy (AREA)
- Microbiology (AREA)
- Biochemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
Leaching agent and its preparation and application the invention discloses a kind of high efficiency extraction ion adsorption type rare earth ore, it is characterised in that：Leaching agent is after culture medium is obtained as raw material with herbaceous plant, the zymotic fluid obtained by fermented and cultured to be carried out to composite bacteria liquid；Culture medium be cut into slices by herbaceous plant, crushed, the boiling that adds water, filtering obtain.Method of the present invention process is simple, the strong adaptability to raw material, rare earth can be cost-effectively leached from ion adsorption type rare earth ore (extraction rate than traditional leaching agent ammonium sulfate improves 1.5%), the ammonia and nitrogen pollution problem that existing leaching technology is produced thoroughly is abandoned, is a kind of process for cleanly preparing.
Description
Technical field
The present invention relates to a kind of leaching agent of high efficiency extraction ion adsorption type rare earth ore.
Background technology
China is rare earth big country, there is the rare earth resources compared with horn of plenty, and explored rare earth reserves have 3.7 × 105Ton is (equivalent
Into oxide), account for the 67% of global rare earth total resources.China has supplied the 97% of global rare earth demand, but, according to relevant money
Material statistics, China's rare earth resources reserves drop to 69%, 90 from 20 century 70s close to the 90% of whole world total amount to the eighties
Age end drops to 45% or so, drops to less than 36% to being even more at present.According to current exploitation and export volume, China will
Become the poor state of rare earth from the resource big country of Rare Earth Mine.
Rare earth mineral resources belong to non-renewable resources, and various rare earth elements are rich in China's ion type rareearth ore, and species is neat
Entirely, the world is rare, even more the valuable mineral resources of China.The development and utilization of current ion type rareearth ore has enter into one newly
Stage, on the one hand as the prolonged extensive style of ion type rareearth ore resources is exploited, the resource increasingly dilution, head grade is got over
Come lower, cause the difficulty of extraction process to greatly increase；On the other hand with high-tech, new material and new energy in world wide
Process of industrialization propulsion, various countries are growing to the demand of rare earth resources, particularly in, the demand of heavy rare earth element with
Day increases severely, it has also become the strategic resource of various countries, this causes that the imbalance between supply and demand of rare earths material increasingly increases.Early stage is dilute with current simultaneously
The pollution problem of native recovery process also becomes more sharp.
The leaching of ion type rareearth ore is at present the 3rd of precipitating reagent for main leaching agent, ammonium hydrogen carbonate to use ammonium sulfate
Based on in-situ leaching production practice.Because ion type rareearth Resource Access principle is simple, is opened a mine greatly by big ore deposit, small open, have
Water flows the influence of ideological trend soon, causes mismanagement, and using spreading unchecked, individual ore deposit point unauthorized and excessive mining remains incessant after repeated prohibition leaching process.Meanwhile,
Abandon poor richness, the tailings adopted and press ore deposit, cause the resource exploitation rate of recovery low, state-run mine is general, and individual mine only reaches 40% 60%,
Adopt it is rich abandon it is poor and less than below mine-dipping pool absolute altitude and the unrecovered resource for utilizing accounts for more than 50%.Research shows, is with ammonium sulfate
Main leaching agent, ammonium hydrogen carbonate can bring more serious problem of environmental pollution for the in-situ leaching production practice of precipitating reagent, generation
Nitrogen-containing wastewater difficulty of governance up to standard is big, high cost, and overstandard waste water discharge phenomenon happens occasionally.Leaching agent is lost in, peritropous
Soil, water body diffusion, cause vegetation root system atrophy, it is impossible to normal growth, and earth's surface, underground water ammonia nitrogen are exceeded, and influence is normal raw
Produce, live；After having leached rare earth, the NH of leaching agent4 +Massif is residued in other adding ingredients, massif is polluted；Supernatant
Liquid circulation acid adding adjusts pH value, is acidified ore body；Resource utilization is relatively low.Therefore, in the urgent need to research and development are a kind of dilute for ionic
New and effective, green, the environmentally friendly leaching agent of native in-situ leaching exploitation.
The content of the invention
The present invention is to avoid the deficiency existing for above-mentioned prior art, there is provided a kind of high efficiency extraction ion adsorption type re
The leaching agent of ore deposit, it is intended to solve the problems, such as that conventional ion absorbent-type Rare Earth Mine leaching agent extraction rate is low, environmental pollution is big.
To achieve the above object, the present invention uses following technical scheme.
The leaching agent of high efficiency extraction ion adsorption type rare earth ore of the present invention, its feature is：The leaching agent is with draft
Plant is after raw material is obtained culture medium, the zymotic fluid obtained by fermented and cultured to be carried out to composite bacteria liquid；
The culture medium be cut into slices by herbaceous plant, crushed, the boiling that adds water, filtering obtain；
The herbaceous plant is mixed by mulberry leaves, sugarcane top, straw and weeds.
The mass ratio for constituting the herbal mulberry leaves, sugarcane top, straw and weeds is 0.5~1：0.5~1：0.5
~1：0.5~1.
The mass fraction of potassium sulfate accounts for 15~25% in the precipitating reagent, balance of magnesium sulfate, calcium chloride, magnesium chloride and
A small amount of organic compound.
The preparation method of above-mentioned leaching agent, comprises the following steps：
(1) after being well mixed mulberry leaves, sugarcane top, straw and weeds, section, crushing obtain mixed powder；According to mixed
It is 1 that powder is closed with the mass ratio of water:2, mixed powder is added to the water, it is then heated to seethe with excitement and continue to boil 3 hours；Finally
Room temperature is cooled to, filtering removal sediment obtains herbaceous plant extract solution；
(2) with step (1) gained herbaceous plant extract solution as culture medium, in mass ratio 500:1 (culture medium：Composite bacteria liquid)
Composite bacteria liquid is added, room temperature is fermented 5~25 hours, that is, obtain leaching agent.
During fermentation：Summer room temperature is higher, typically ferments 5~8 hours；Spring and autumn room temperature is relatively low, need to ferment 10
~15 hours；And winter temperature is minimum, need to ferment 15~25 hours.
Leaching agent of the invention can be used for the leaching of ion adsorption type rare earth ore.
Compared with existing leaching agent, beneficial effects of the present invention are embodied in：
1st, herbaceous plant leaching agent of the invention have the advantages that efficiently, low cost, environmental protection, the extraction rate of resource can improve
2~4%, can avoid that existing ammonium sulfate leaching agent in-situ lixiviation processing resource recovery is relatively low, nitrogen-containing wastewater is up to standard administers difficult
Degree is big, high cost, leaching agent are stranded in the problems such as in massif, with the important value of environmental protection and economic implications.
2nd, leaching agent of the invention is free of any band ammonia reagent, to zero environmental.
3rd, leaching agent strong adaptability of the invention, it is easy to promote.
Brief description of the drawings
Fig. 1 is the uv absorption spectra of the gained precipitating reagent of the embodiment of the present invention 1.
Fig. 2 is the shadow of the herbaceous plant leaching agent to rare earth leaching rate of ammonium sulfate and different pH value in the embodiment of the present invention 2
Ring curve.
Specific embodiment
Technical scheme is described further below in conjunction with specific embodiment.
Embodiment 1
The present embodiment prepares leaching agent as follows first：
(1) by mulberry leaves, sugarcane top, straw and weeds in mass ratio 1:1:1:After 1 is well mixed, section, crushing are obtained
Mixed powder；Mass ratio according to mixed powder and water is 1:2, mixed powder is added to the water, be then heated to boiling and after
It is continuous to boil 3 hours；Room temperature is finally cooled to, filtering removal sediment obtains herbaceous plant extract solution；
(2) with step (1) gained herbaceous plant extract solution as culture medium, in mass ratio 500:1 adds composite bacteria liquid, room temperature
15 DEG C ferment 10 hours, that is, obtain leaching agent.Wherein, composite bacteria liquid is bought from Shandong Lv Long Bioisystech Co., Ltd.
Fig. 1 is the uv absorption spectra of the present embodiment gained precipitating reagent.
Embodiment 2
The present embodiment is processed ion adsorption type rare earth ore with the gained leaching agent of embodiment 1 as raw material, and method is：
The pH for adjusting the gained precipitating reagent of embodiment 1 is respectively 3~4,6~7,9~10；
Weigh Ganzhou ion adsorption type rare earth ore 100g to be fitted into conical flask, respectively by the leaching of 1000mL differences pH
Agent is stirred overnight in adding Rare Earth Mine, is replaced in the aqueous solution Rare Earth Mine Rare Earth Ion by ion exchange, filtering
Supernatant is obtained, the content of supernatant Rare Earth Ion is determined with ICP methods.Simultaneously leaching agent with ammonium sulfate as a comparison.
Fig. 2 is the influence curve of the herbaceous plant leaching agent to rare earth leaching rate of ammonium sulfate and different pH value, it can be seen that
With traditional leaching agent (NH4)2SO4Compare, the use of the herbaceous plant leaching agents of pH 6~7 can make ion adsorption type rare earth ore
Extraction rate improves 1.5%.
Claims (5)
1. a kind of leaching agent of high efficiency extraction ion adsorption type rare earth ore, it is characterised in that：The leaching agent is with herbaceous plant
After culture medium is obtained for raw material, the zymotic fluid obtained by fermented and cultured is carried out to composite bacteria liquid；
The culture medium be cut into slices by herbaceous plant, crushed, the boiling that adds water, filtering obtain；
The herbaceous plant is mixed by mulberry leaves, sugarcane top, straw and weeds.
2. leaching agent according to claim 1, it is characterised in that：Constitute the herbal mulberry leaves, sugarcane top, rice
The mass ratio of grass and weeds is 0.5~1：0.5~1：0.5~1：0.5~1.
3. leaching agent according to claim 1, it is characterised in that：The mass fraction of potassium sulfate accounts for 15 in the precipitating reagent
~25%.
4. in a kind of claims 1 to 3 leaching agent described in any one preparation method, it is characterised in that comprise the following steps：
(1) after being well mixed mulberry leaves, sugarcane top, straw and weeds, section, crushing obtain mixed powder；According to mixed powder
Material is 1 with the mass ratio of water:2, mixed powder is added to the water, it is then heated to seethe with excitement and continue to boil 3 hours；Finally cool down
To room temperature, filtering removal sediment obtains herbaceous plant extract solution；
(2) with step (1) gained herbaceous plant extract solution as culture medium, in mass ratio 500:1 adds composite bacteria liquid, room temperature fermentation
5~25 hours, that is, obtain leaching agent.
5. in a kind of claims 1 to 3 leaching agent described in any one application, it is characterised in that：It is dilute for ion type
The leaching of Tu Kuang.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710334073.8A CN106929673A (en) | 2017-05-12 | 2017-05-12 | A kind of leaching agent of high efficiency extraction ion adsorption type rare earth ore and its preparation and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710334073.8A CN106929673A (en) | 2017-05-12 | 2017-05-12 | A kind of leaching agent of high efficiency extraction ion adsorption type rare earth ore and its preparation and application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106929673A true CN106929673A (en) | 2017-07-07 |
Family
ID=59430387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710334073.8A Pending CN106929673A (en) | 2017-05-12 | 2017-05-12 | A kind of leaching agent of high efficiency extraction ion adsorption type rare earth ore and its preparation and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106929673A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108754188A (en) * | 2018-07-01 | 2018-11-06 | 广西那神晞途环保科技有限公司 | Application and sandworm culture rare-earth precipitation liquid of the sandworm culture in precipitating rare earth |
| CN108823407A (en) * | 2018-07-01 | 2018-11-16 | 广西那神晞途环保科技有限公司 | Ionic mineral soak mine agent and preparation method thereof |
| CN110373549A (en) * | 2019-09-04 | 2019-10-25 | 贵州理工学院 | A kind of method of the dump leaching leaching slag of acidolysis containing rare earth recovering rare earth |
| CN112877252A (en) * | 2021-03-09 | 2021-06-01 | 中南大学 | Composite microbial agent for leaching weathering crust leaching type rare earth ore and preparation method thereof |
| CN113046553A (en) * | 2021-03-09 | 2021-06-29 | 中南大学 | Method for leaching weathering crust elution type rare earth ore by regulating microbial community structure |
| CN113046552A (en) * | 2021-03-09 | 2021-06-29 | 中南大学 | Method for leaching weathering crust leaching type rare earth ore by using plant extract |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105347320A (en) * | 2015-12-08 | 2016-02-24 | 中南大学 | Bacterial leaching agent and method for leaching phosphorus from apatite floatation tailings |
| CN105603188A (en) * | 2016-02-18 | 2016-05-25 | 广西晧昭环保科技有限公司 | Herbaceous plant rare-earth mineral leaching agent and preparation method thereof |
| CN105603222A (en) * | 2016-02-18 | 2016-05-25 | 广西晧昭环保科技有限公司 | Herbaceous plant rare-earth precipitating agent and preparation method thereof |
| CN106498188A (en) * | 2016-10-14 | 2017-03-15 | 赣州弘茂稀土工程有限公司 | The rare earth original place control extract technology of ion type rareearth ore |
-
2017
- 2017-05-12 CN CN201710334073.8A patent/CN106929673A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105347320A (en) * | 2015-12-08 | 2016-02-24 | 中南大学 | Bacterial leaching agent and method for leaching phosphorus from apatite floatation tailings |
| CN105603188A (en) * | 2016-02-18 | 2016-05-25 | 广西晧昭环保科技有限公司 | Herbaceous plant rare-earth mineral leaching agent and preparation method thereof |
| CN105603222A (en) * | 2016-02-18 | 2016-05-25 | 广西晧昭环保科技有限公司 | Herbaceous plant rare-earth precipitating agent and preparation method thereof |
| CN106498188A (en) * | 2016-10-14 | 2017-03-15 | 赣州弘茂稀土工程有限公司 | The rare earth original place control extract technology of ion type rareearth ore |
Non-Patent Citations (2)
| Title |
|---|
| 胡家骏等: "《环境工程微生物学》", 31 March 1988, 高等教育出版社 * |
| 陈炳辉等: "花岗岩风化壳中的微生物及其对稀土元素的浸出作用", 《地质评论》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108754188A (en) * | 2018-07-01 | 2018-11-06 | 广西那神晞途环保科技有限公司 | Application and sandworm culture rare-earth precipitation liquid of the sandworm culture in precipitating rare earth |
| CN108823407A (en) * | 2018-07-01 | 2018-11-16 | 广西那神晞途环保科技有限公司 | Ionic mineral soak mine agent and preparation method thereof |
| CN110373549A (en) * | 2019-09-04 | 2019-10-25 | 贵州理工学院 | A kind of method of the dump leaching leaching slag of acidolysis containing rare earth recovering rare earth |
| CN112877252A (en) * | 2021-03-09 | 2021-06-01 | 中南大学 | Composite microbial agent for leaching weathering crust leaching type rare earth ore and preparation method thereof |
| CN113046553A (en) * | 2021-03-09 | 2021-06-29 | 中南大学 | Method for leaching weathering crust elution type rare earth ore by regulating microbial community structure |
| CN113046552A (en) * | 2021-03-09 | 2021-06-29 | 中南大学 | Method for leaching weathering crust leaching type rare earth ore by using plant extract |
| CN113046553B (en) * | 2021-03-09 | 2022-02-22 | 中南大学 | Method for leaching weathering crust elution type rare earth ore by regulating microbial community structure |
| CN112877252B (en) * | 2021-03-09 | 2022-05-10 | 中南大学 | Composite microbial agent for leaching weathering crust leaching type rare earth ore and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106929673A (en) | A kind of leaching agent of high efficiency extraction ion adsorption type rare earth ore and its preparation and application | |
| CN102900418B (en) | In-situ uranium leaching and mining treatment method by adding O2 into CO2 | |
| CN105603222A (en) | Herbaceous plant rare-earth precipitating agent and preparation method thereof | |
| CN102002588B (en) | Bioleaching method-uranium leaching from fungus | |
| CN106967892A (en) | A kind of precipitating reagent and its preparation and application for precipitating ion absorbent-type Rare Earth Mine leachate Rare Earth Ion | |
| CN104261981A (en) | Preparation method of seaweed organic fertilizer and organic fertilizer prepared by using method | |
| CN102703087B (en) | Method for preparing saline-alkali soil conditioner by utilizing hydrolytically-dried sludge | |
| CN101318845A (en) | Process for preparing potash magnesium sulphate fertilizer with kalium containing sulfate | |
| CN104609991A (en) | A growth promoting liquid fertilizer and a preparing method thereof | |
| CN105714115B (en) | A kind of carbonaceous siliceous-pelitic rock type U-ore stone Bioleaching Uranium method | |
| CN107954805A (en) | A kind of soil improvement method of sludge composting | |
| CN102503677A (en) | Topdressing type eucalyptus ecological fertilizer | |
| CN102795641A (en) | Novel method for direct extraction recovery of ammonia nitrogen from electrolyzed manganese slag | |
| CN108588428B (en) | The electrochemical method of arsenic and alkali in a kind of separation arsenic alkaline slag | |
| CN104962739A (en) | Quick impurity removing method for rare earth leach liquor of weathering crust elution-deposited rare earth ores | |
| CN102560109A (en) | Method for extracting copper, nickel and cobalt intermediate products from copper and cobalt ore at low cost | |
| CN101434918A (en) | Leaching-ore bacteria and high temperature heap bioleaching process for chalcopyrite ore by using the same | |
| CN113046552B (en) | Method for leaching weathering crust leaching type rare earth ore by using plant extract | |
| CN110373549B (en) | Method for recovering rare earth from heap leaching and leaching acidolysis residue containing rare earth | |
| CN105603188A (en) | Herbaceous plant rare-earth mineral leaching agent and preparation method thereof | |
| CN110408801B (en) | Method for recovering rare earth by heap leaching and leaching phosphogypsum containing rare earth | |
| CN101629190B (en) | Method for producing fuel ethanol by jerusalem artichoke as raw material | |
| CN103539489A (en) | Integrated method for preparing potassium fertilizer from Bayan Obo potassium-rich slate | |
| CN104263925B (en) | Separation method of each component ore in pyrite-ion adsorption type rare earth composite ore | |
| CN104195332B (en) | A kind of preparation method of crystal carbonated rare earth |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Zhenyang Inventor after: Zhang Shudong Inventor after: Zhao Tingting Inventor after: Wu Xiaohu Inventor after: Zhang Zhongping Inventor after: Li Nian Inventor before: Wang Zhenyang Inventor before: Zhang Shudong Inventor before: Zhao Tingting Inventor before: Zhang Zhongping Inventor before: Li Nian |
|
| CB03 | Change of inventor or designer information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170717 Address after: 230031 Science Island Intelligence Center, No. 350 Lake Road, Hefei, Anhui, Shushan Applicant after: Hefei Inst. of Matter Sciences, Chinese Academy of Sciences Applicant after: Jiangxi morning Technology Co., Ltd. Address before: 230031, Shushan Lake Road, Science Island, Anhui, Hefei, 350 Applicant before: Hefei Inst. of Matter Sciences, Chinese Academy of Sciences |
|
| TA01 | Transfer of patent application right | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170707 |
|
| WD01 | Invention patent application deemed withdrawn after publication |