CN1208080A - In-situ ionic rare earth deposit impregnating technology - Google Patents
In-situ ionic rare earth deposit impregnating technology Download PDFInfo
- Publication number
- CN1208080A CN1208080A CN97114216A CN97114216A CN1208080A CN 1208080 A CN1208080 A CN 1208080A CN 97114216 A CN97114216 A CN 97114216A CN 97114216 A CN97114216 A CN 97114216A CN 1208080 A CN1208080 A CN 1208080A
- Authority
- CN
- China
- Prior art keywords
- technology
- liquid
- fluid injection
- rare earth
- ore
- 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
-
- 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
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The in-situ deposit impregnating technology is that ore impregnating liquid is first injected through the shallow shaft system distributed in the deposit to lixiviate RE mineral in ore body and then recovered. The present invention establishes one limit free boundary technology for in-situ ionic RE deposit impregnation and applies penetrating cone theory to realize fuzzy boundary control. It classifies technological types according to geologic features, adopts different impregnating liquid injecting and recovering measures for different technological types, and realizes closed production process.
Description
The invention belongs to the solution mining technology, particularly relate to the production technique field of ion type rareearth ore.
Weathered superficial leaching rare-earth ore (ion type rareearth ore) is China's special mineral resources, and reserves are abundant, and are widely distributed.The tax of ion type rareearth ore body is deposited type and is mainly contained five kinds in compound entirely, naked pin formula, perfect form and part type ore body and residual formula part type ore body, and its geologic feature has nothing in common with each other.
From early seventies, I have invented since the ion type rareearth elution technology, and strip mining transformation is continued to use in the rare earth mine always---leaching process production.This technology has promoted the large-scale development of China's south rare earth resources, but this technology causes outstanding problems such as soil erosion, environmental pollution, environmental destruction and resources loss be serious.Problem at the leaching process existence, my place is finished and proposed again on the basis of exploratory experiment with the solution mining technology is that the original place deposit impregnating technology substitutes leaching process, and on July 6th, 1989 just " ionic type rare earth ore in-situ lixiviation processing " applied for Chinese invention patent, the patent No.: ZL89104757.But this patented technology is only applicable to specific ore body geologic condition, and do not divide technology type and definite corresponding techniques scheme at the different geologic feature of rare-earth mineral, unresolved ore leachate injects the boundary Control technical problem of ore body, also because its technological line is the open circuit flow process, in use still have discharge of wastewater, contaminate environment simultaneously.
The objective of the invention is to be only applicable to specific ore body geologic condition and the environmental pollution in the development of resources process problem such as resource utilization is low in order to solve former patented technology.During " eight or five ",, in-situ ionic rare earth is soaked the ore deposit novel process carried out comprehensive and systematic research and invented the in-situ ionic rare earth deposit impregnating technology series technique through the state key tackling of key scientific and technical problems.
Technical scheme of the present invention is under field conditions (factors), injects ore leachate, ore leachate infiltration ore body with rare earth leaching and recovery by the shallow well net system that is distributed in the ore body face of land.
At the different geologic features in ion type rareearth mineral deposit, divide A, B, three kinds of technology types of C, and, take different notes, receipts liquid technology according to different technology types.The present invention has solved the key problem in technology that soaks fluid injection in the process of ore deposit, receives liquid with the technological line of " net well cloth liquid, static pressure sepage, back cover leak stopping, comprehensively receive liquid ".Foundation comprises technical process, geologic feature, technological line at interior complete process technology scheme, has realized not having substantially the closed circuit Production Flow Chart (seeing process flow sheet) of tailings, non-wastewater discharge.
Nugget replenishes geological prospecting: be the unit with the hilltop, topographical crest is an axis, with the mountain top is the center, arranges prospecting borehole (circle well, Fang Jingjun can) by spacing 10-20m grid, and well depth reaches little waste mantle of weathering crust, seek the above reserves of B level, weathering crust structure and corresponding engineering geology, hydrogeological characteristics is a state according to geologic feature and microrelief river rising in Ningxia and flowing into central Shaanxi fluid, rationally divide nugget, optimize fluid injection well pattern layout.
Fluid injection technology:, founded limit free boundary technology according to underground water partially-penetrated well seepage field theory.When the shallow well fluid injection, the infiltration of ore leachate in ore body permeated from top to bottom with the cone form, as long as keep the fluid injection head stable, fluid injection continuously, the infiltration cone carries out the transition to state of saturation gradually by unsaturated state, realizes liquid then in the steady state current downflow, realizes fuzzy control limit.When basement rock water proof aspect that has inclination under the ore body base plate or artificial water proof aspect, the leach liquor in the saturated cone will be moving along the water-resisting layer surface current, be pooled to liquid collection engineering.Therefore, the shutoff measure needn't be taked in the nugget border, with the infiltration cone border of fluid injection well as soaking the ore deposit natural boundary.
During fluid injection with the fluid injection of Ф 0.8m shallow well (or groove) static pressure maceration, well depth is in ore body about 2m, look the distribution situation of orebody thickness, grade and the well pattern system that topographical condition is selected 5 * 5～8 * 8m respectively for use, and carry out individual well reservoir quantity and the calculating of the top water yield, and soak ore deposit solid-to-liquid ratio (weight ratio)---ore amount (ton): ore leachate amount (ton)=1: 0.4～0.5; Top water solid-to-liquid ratio (weight ratio)---ore amount (ton): the top water yield (ton)=1: 0.6～1.10, fluid injection head height 1.8～2m.
Receive the liquid technology:, select different receipts liquid schemes for use according to different technology geological types.
Category-A: carry out nature liquid collecting receipts liquid at slope toe excavation intercepting gutter or liquid collecting well;
Category-B: adopt the back cover leak stopping to force to receive the liquid scheme.Under the ore body base plate, tie row boring, pitch of holes 3～4m, Ф 110m/m, hole depth 30～50m, floral tube is installed in the hole, and aperture 1.5～2m seals with sand-cement slurry, and floral tube is responsible for vacuum system and is connected, negative pressure is greater than 20000～26000Pa (150～200mmHg post) in the retaining hole, each hole negative pressure radius of influence is intersected each other, and forming with the aperture absolute altitude is the zone of negative pressure at center, changes flow direction, leach liquor is flowed out from the negative pressure hole floral tube, realize back cover leak stopping receipts liquid.
C class: adopt the comprehensive liquid scheme of receiving, promptly adopt the nature liquid collecting to receive liquid and receive combining of liquid with negative pressure; Intercepting gutter is received liquid phase with the liquid collecting well and is combined; Receipts liquid and nugget are received liquid phase bonded technology outward in the nugget.
Closed circuit technical process:
Follow procedure is finished geological prospecting, nugget is divided, technology type and technical scheme have been determined, after design and the engineering construction, by 2% concentration preparation ammonium sulfate ore leachate, pH value 5.5～6.0, be pumped to high-order pond, by being responsible for, arm, the well head pipe is delivered to each fluid injection well respectively, and keeps stable head static pressure fluid injection, annotated design ore leachate amount after, annotate top water immediately, leach liquor is collected by the liquid collecting engineering, delivers to the finishing plant impurity-removing precipitating, obtains the mishmetal product, sedimentary supernatant liquor is delivered to the dosing pond and is recycled, and then adds sulfuric acid and pH value is transferred to 6.0～6.5 makes top water and use if be unworthy of ore leachate.When this nugget no longer during fluid injection, then move to next nugget and use, do not efflux (seeing process flow sheet).
Above-mentioned technology contents combination promptly forms complete in-situ ionic rare earth deposit impregnating technology technical scheme.
By the large-scale production test to 15.6 ten thousand tons of ores of the ton commerical test of two kinds of technology geological type rare-earth mineral and a type, this technology 1. rare earth yield reaches more than 70%, and resource utilization improves 20～45 percentage points than former leaching process; 2. 3000～5000 yuan of/ton REO reduce production costs; 3. realized not destroying substantially the closed circuit Production Flow Chart of ground vegetation, non-wastewater discharge.
Embodiment:
This technology in Longnan County's rare-earth mineral, seek the ton commerical test that Wu county rare-earth mineral has been carried out two kinds of technology types.
1. it is naked pin formula weathering crust perfect form ore body that type is deposited in its tax of ton test nugget of selecting in Longnan, there is the exposure of part basement rock at the foot of the hill, and the weathering crust base plate is high-order formula base plate, and growing in the nugget has the fracture shatter belt, alteration fissured zone and vein, the ore body base plate rises and falls big.According to geologic feature, the technology type of this nugget is defined as comprehensive type.Technical scheme adopts the comprehensive liquid scheme of receiving.
Test is well-digging in ore body (circle well or Fang Jing) at first, well depth 3m, hole diameter Ф 0.8m, fluid injection head height 1.8～2m, determine that according to the infiltration cone well pattern parameter is 4 * 6m, soaked the ore deposit solid-to-liquid ratio 1: 0.45, top water solid-to-liquid ratio 1: 0.6 is dug intercepting gutter and liquid collecting well at the river rising in Ningxia and flowing into central Shaanxi flow path direction of vertical liquid, deep-cut to the basement rock end face, and beat negative pressure hole, aperture Ф 110m/m, hole depth 30～36m at tomography and cranny development position, dress floral tube in the hole, aperture 1.5～2m section sand-cement slurry sealing of hole, orifice tube and negative pressure system are responsible for and are connected, negative pressure value greater than 20000Pa (150mmHg post) condition under, reclaim leach liquor.The supernatant liquor of leach liquor behind the impurity-removing precipitating rare earth that reclaims returns dosing pond preparation ore leachate or adjust pH value is 6.0～6.5 to make the top water cycle and use.Test leaching yield 92.26%; The mother liquor rate of recovery 83.50%; The rare earth leaching rate of recovery 76.95%.
2. seeking its tax of Wu's type ore body, to deposit type be the complete compound perfect form ore body of weathering crust, and weathering crust is thicker, does not have the basement rock exposure.Technology type is a complexity, and technical scheme forces to receive the liquid scheme for the back cover leak stopping.
Test in ore body, dig a well (circle well or Fang Jing), well depth 3m, hole diameter Ф 0.8m, fluid injection head height 1.8～2m, well pattern parameter 5～6m, soaked the ore deposit solid-to-liquid ratio 1: 0.5, top water solid-to-liquid ratio 1: 1.0, adopt the back cover leakage stopping technology, aperture Ф 110m/m, hole depth 36m, negative pressure hole spacing 3～4m, intersecting each other with the negative pressure radius of influence between the hole, to form the artificial negative pressure back cover of successive layer be principle, and a vacuum pump is joined a steam separator, reclaims leach liquor in negative pressure value under greater than 27000Pa (200mmHg post) condition.Test leaching yield 88.30%, the mother liquor rate of recovery 81.50%, the rare earth leaching rate of recovery 71.33%.
Claims (6)
1, in-situ ionic rare earth deposit impregnating technology is to inject rare earth leaching and the recovery of ore leachate with ore body by the shallow well net system that is distributed in deposit surface, it is characterized in that: technology has been set up in-situ ionic rare earth and has been soaked ore deposit limit free boundary technology, uses infiltration cone theory and has realized fuzzy control limit technology; According to geologic feature, divide technology type (A, B, C class); According to different technology types, to take different fluid injections, receive the liquid measure, its technical process is closed circuit Production Flow Chart.
2, according to claim 1, it is characterized in that: technology has been set up in-situ ionic rare earth and has been soaked ore deposit limit free boundary technology, use infiltration cone theory, by keeping the fluid injection head stable, fluid injection continuously, infiltration cone carry out the transition to state of saturation gradually by unsaturated state, then realize liquid in the steady state current downflow, realize fuzzy control limit.
3,, it is characterized in that having set up the partitioning technology of technology geological type, and select corresponding notes, receipts liquid technology for use by replenishing geological prospecting according to the described technology of claim 1.
Category-A simple process type: the fluid injection of net well static pressure, natural liquid collecting, receipts liquid technology;
Category-B complicated technology type: the fluid injection of net well static pressure, back cover leak stopping force to receive the liquid technology;
C class hybrid technique geological type: shallow well or groove mixing fluid injection, comprehensive liquid collecting, receipts liquid technology, promptly natural liquid collecting is received liquid and is received combining of liquid with negative pressure, and intercepting gutter is received liquid phase with the liquid collecting well and is combined, and receipts liquid and nugget are received the liquid phase combination technology outward in the nugget.
4, according to claim 1,3 described, it is characterized in that: " with the fluid injection of net well, static pressure maceration, back cover leak stopping, comprehensively receive liquid " is technological line.
5, according to claim 1, it is characterized in that: production technique has adopted closed circuit, has realized not destroying substantially ground vegetation, the complete closed circuit technological process of production of non-wastewater discharge.
6, according to the described technology of claim 1, it is characterized in that: negative pressure value greater than 20000Pa (greater than the 150mmHg post) condition under, reclaim leach liquor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97114216A CN1208080A (en) | 1997-08-07 | 1997-08-07 | In-situ ionic rare earth deposit impregnating technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97114216A CN1208080A (en) | 1997-08-07 | 1997-08-07 | In-situ ionic rare earth deposit impregnating technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1208080A true CN1208080A (en) | 1999-02-17 |
Family
ID=5172792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97114216A Pending CN1208080A (en) | 1997-08-07 | 1997-08-07 | In-situ ionic rare earth deposit impregnating technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1208080A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100543267C (en) * | 2005-04-29 | 2009-09-23 | 林江颖 | A kind of rude ore mining method for ion type RE ore |
| 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 |
| CN104046774A (en) * | 2014-05-29 | 2014-09-17 | 赣州稀土矿业有限公司 | Liquid-injection and liquid-collection engineering arrangement optimization method for barefoot-type ionic rare earth ore body |
| CN106636683A (en) * | 2016-10-14 | 2017-05-10 | 赣州弘茂稀土工程有限公司 | Rare earth in-situ leaching and enriching process for ionic rare earth ore |
| CN106676265A (en) * | 2016-10-14 | 2017-05-17 | 赣州弘茂稀土工程有限公司 | Application of Ca<2+> ionic solution serving as shrinking agent in ore leaching process for ionic rare earth ore |
| CN107502761A (en) * | 2017-08-16 | 2017-12-22 | 江西理工大学 | A kind of acceleration permeability apparatus suitable for ion type rareearth mine in_situ leaching |
| CN109182750A (en) * | 2018-11-16 | 2019-01-11 | 武汉工程大学 | A kind of weathered superficial leaching rare-earth ore Situ Leaching leakage closure method |
| CN109469472A (en) * | 2018-12-19 | 2019-03-15 | 四川共拓岩土科技股份有限公司 | A kind of in-situ leaching ion type rareearth ore recovery method |
| CN109593957A (en) * | 2018-12-10 | 2019-04-09 | 四川共拓岩土科技股份有限公司 | A kind of active method for extracting of in-situ leaching ion type rareearth ore |
| CN110055414A (en) * | 2019-04-25 | 2019-07-26 | 中国地质科学院矿产综合利用研究所 | Seepage control in-situ mining method for ionic rare earth |
| CN115125404A (en) * | 2022-09-02 | 2022-09-30 | 矿冶科技集团有限公司 | System and method for collecting ion type rare earth ore in-situ leaching field leakage liquid |
-
1997
- 1997-08-07 CN CN97114216A patent/CN1208080A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100543267C (en) * | 2005-04-29 | 2009-09-23 | 林江颖 | A kind of rude ore mining method for ion type RE ore |
| 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 |
| CN104046774A (en) * | 2014-05-29 | 2014-09-17 | 赣州稀土矿业有限公司 | Liquid-injection and liquid-collection engineering arrangement optimization method for barefoot-type ionic rare earth ore body |
| CN104046774B (en) * | 2014-05-29 | 2016-04-06 | 赣州稀土矿业有限公司 | The fluid injection of naked pin formula ion type rareearth ore body and liquid collection engineering optimizing method for disposing |
| CN106636683B (en) * | 2016-10-14 | 2019-05-14 | 赣州弘茂稀土工程有限公司 | The rare earth Situ Leaching and process of enriching of ion type rareearth ore |
| CN106636683A (en) * | 2016-10-14 | 2017-05-10 | 赣州弘茂稀土工程有限公司 | Rare earth in-situ leaching and enriching process for ionic rare earth ore |
| CN106676265A (en) * | 2016-10-14 | 2017-05-17 | 赣州弘茂稀土工程有限公司 | Application of Ca<2+> ionic solution serving as shrinking agent in ore leaching process for ionic rare earth ore |
| CN107502761A (en) * | 2017-08-16 | 2017-12-22 | 江西理工大学 | A kind of acceleration permeability apparatus suitable for ion type rareearth mine in_situ leaching |
| CN107502761B (en) * | 2017-08-16 | 2019-05-14 | 江西理工大学 | A kind of acceleration permeability apparatus suitable for ion type rareearth mine in_situ leaching |
| CN109182750A (en) * | 2018-11-16 | 2019-01-11 | 武汉工程大学 | A kind of weathered superficial leaching rare-earth ore Situ Leaching leakage closure method |
| CN109593957A (en) * | 2018-12-10 | 2019-04-09 | 四川共拓岩土科技股份有限公司 | A kind of active method for extracting of in-situ leaching ion type rareearth ore |
| CN109593957B (en) * | 2018-12-10 | 2020-10-16 | 四川共拓岩土科技股份有限公司 | Active extraction method for in-situ leaching of ionic rare earth ore |
| CN109469472A (en) * | 2018-12-19 | 2019-03-15 | 四川共拓岩土科技股份有限公司 | A kind of in-situ leaching ion type rareearth ore recovery method |
| CN110055414A (en) * | 2019-04-25 | 2019-07-26 | 中国地质科学院矿产综合利用研究所 | Seepage control in-situ mining method for ionic rare earth |
| CN115125404A (en) * | 2022-09-02 | 2022-09-30 | 矿冶科技集团有限公司 | System and method for collecting ion type rare earth ore in-situ leaching field leakage liquid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101176400B (en) | New process for recultivating glebe in mine subsidence area | |
| CN102160480B (en) | Saline-alkali soil irrigation and drainage ecological improvement method | |
| CN104711420B (en) | In-situ leaching and liquid collecting method for weathered crust leaching-deposited rare-earth ore | |
| CN100543267C (en) | A kind of rude ore mining method for ion type RE ore | |
| CN112921193B (en) | Method for controlling seepage direction of rare earth leaching solution by electrifying | |
| CN108374097B (en) | Interception process for leaching solution of rare earth ore deposited by weathering crust in south China | |
| CN104694746A (en) | Ion-adsorption-type rare earth in-situ leaching method and leaching system thereof | |
| CN109402417A (en) | The method for the exploitation Rare Earth Mine that is powered | |
| CN111622206B (en) | Construction method of ionic rare earth impervious curtain | |
| CN1208080A (en) | In-situ ionic rare earth deposit impregnating technology | |
| CN110055414A (en) | Seepage control in-situ mining method for ionic rare earth | |
| CN109372511A (en) | A method of utilizing Yellow River mud dynamic filling coal mining subsided land | |
| CN106702182B (en) | A kind of recovery system of re dip solution | |
| CN109182750A (en) | A kind of weathered superficial leaching rare-earth ore Situ Leaching leakage closure method | |
| CN1401797A (en) | Process for in-situ leaching ion type rareearth ore | |
| CN111622269B (en) | Method for preventing and controlling pollution of ion type rare earth shallow groundwater | |
| CN103215945B (en) | The three-dimensional assembly power drain consolidation system of heterogeneous body place soft soil foundation and method | |
| CN106591605A (en) | Deep well liquid collecting method for efficiently recovering ion type rare earth | |
| CN106285683A (en) | Mine reclamation stores water pumping method bottom openpit or Subsidence Area | |
| CN113027522A (en) | Coal mine drainage same-layer recharging method | |
| CN206129244U (en) | Colliery water resources regionalization is mining system in advance | |
| CN105112652A (en) | Structure of channel for recovering in-situ leaching mother solution of rare earth ore | |
| CN1043768A (en) | Ion-adsorpting local immersion-extraction method for mining rare-earth minerals | |
| CN108468544A (en) | A kind of recovery method of rare earth | |
| CN112921192B (en) | Ion adsorption type rare earth ore mining and environment treatment integrated method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |