CN105400964A - Air agitation cyanidation leaching gold extraction tank and application - Google Patents
Air agitation cyanidation leaching gold extraction tank and application Download PDFInfo
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- CN105400964A CN105400964A CN201511003169.3A CN201511003169A CN105400964A CN 105400964 A CN105400964 A CN 105400964A CN 201511003169 A CN201511003169 A CN 201511003169A CN 105400964 A CN105400964 A CN 105400964A
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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
- C22B11/00—Obtaining noble metals
- C22B11/08—Obtaining noble metals by cyaniding
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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
- C22B11/00—Obtaining noble metals
- C22B11/04—Obtaining noble metals by wet 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
- C22B3/02—Apparatus therefor
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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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Abstract
The invention relates to an air agitation cyanidation leaching gold extraction tank and application. The air agitation cyanidation leaching gold extraction tank comprises a carbon steel tank body, a carbon steel tank cover, a heating and ventilation pipe and a plurality of ore pulp guide shells, wherein the ore pulp guide shells are vertically arranged in the carbon steel tank body; air agitation pipes are arranged in the ore pulp guide shells; the heating and ventilation pipe is arranged on the side wall of the carbon steel tank body in a surrounding manner. When the air agitation cyanidation leaching gold extraction tank disclosed by the invention is used, compressed air is input into the air agitation pipes through a compressor, oxygen is charged, and besides, the effect of agitation is achieved. The air agitation pipes are arranged in the ore pulp guide shells, so that the situation that the air agitation pipes are in direct contact with ore pulp is avoided, and the ore pulp is prevented from entering the air agitation pipes.
Description
Technical field
The present invention relates to a kind of air agitation Cyanide Leaching sluice and application, belong to the technical field that nonferrous metallurgy refines.
Technical background
In Cyanide Process, the Cyanide Leaching of gold needs oxygen and participates in reaction, therefore carries golden process need at Cyanide Leaching and constantly in stirred leaching tank, blast air while stirring.At present, additional air-blowing device and the air flotation type air power leaching tank supplementing air in leaching vat of the mainly mechanical stirring leaching vat of Cyanide Leaching equipment employing.The shortcomings such as the additional air-blowing device of mechanical stirring leaching vat also exists rotational structure complexity, and failure rate, maintenance cost are high, and energy consumption is higher, and golden leaching yield is lower.Air flotation type air power leaching tank does not have mechanical operating part, has the features such as manufacture is low with maintenance cost, structure simple, power consumption province; But air flotation type air power leaching tank can not by wide popularization and application, mainly because leaching vat structure design is reasonable not, energy-saving effect is not remarkable, the not good Cyanide Leaching speed of gold that causes of the mixed effect of ore pulp and air is lower, ore deposit is sat more in groove, and easily allow leaching vat " sit dead " when blowing-out, not easily start.
Chinese patent CN201141037 discloses a kind of Microvesicle oxidization gold extraction leaching tank, comprise cell body, stirring host that cell body is arranged outward, stirring host drives paddle wheel to rotate by main shaft, cell body is provided with air supply device, bottom cell body, be provided with microvesicle Inflatable dispenser, air supply device is connected with microvesicle Inflatable dispenser.Pressure air during work, the aeration aperture through microvesicle Inflatable dispenser sprays, and oxygen dissolution, in water, also serves the effect of stirring ore pulp.Although this device is by pneumatic blending, stirring is abundant not, still needs stirring host to drive bilobed wheel to rotate and carries out auxiliary stirring ore pulp.
Summary of the invention
For the deficiencies in the prior art, the invention provides and propose a kind of air agitation Cyanide Leaching sluice.
The present invention also provides a kind of and above-mentioned air agitation Cyanide Leaching sluice is applied to the method carrying gold.
Technical scheme of the present invention is as follows:
A kind of air agitation Cyanide Leaching sluice, comprises carbon steel cell body, carbon steel groove lid, HVAC pipe and multiple ore pulp guide shell; Ore pulp guide shell is vertically arranged in carbon steel cell body; Air agitation pipe is provided with in described ore pulp guide shell; Described HVAC pipe ring is around being arranged on carbon steel cell body sidewall.Air agitation Cyanide Leaching sluice of the present invention in use, by compressor to input compressed-air in air agitation pipe, while oxygenation, plays the effect of stirring.Air agitation pipe is arranged in ore pulp guide shell and avoids air agitation pipe and directly contact with ore pulp, prevent ore pulp from entering air agitation pipe, cause plug pipe.Another advantage of this structure is, the pressure air of in use air agitation pipe output, not directly squeeze in the ore pulp of carbon steel cell body, but contact with ore pulp guide shell, reduce the diffusion that pressure air is horizontal in carbon steel cell body, improve the contact area of mixing effect, stirring efficiency, stirring amplitude and oxygen and ore pulp, do not need mechanical stirring to assist.
Preferably, described carbon steel cell body is cylindricality carbon steel cell body, and aspect ratio is 1 ~ 4; Ore pulp guide shell is carbon steel material, and diameter is 400 ~ 700mm; The diameter of air agitation pipe is 20 ~ 50mm; Described ore pulp guide shell distance carbon steel cell body distance from bottom is 500 ~ 1200mm.In this distance range flowsheet of slurry agitation effect preferably and ore pulp dispersion better.
Preferably, described HVAC pipe diameter is 40 ~ 60mm, is provided with the 3rd flow control valve at the entrance of HVAC pipe.Flow control valve enters the hot water flow in HVAC pipe for controlling, HVAC pipe in the winter time under cold climate to ore pulp heating, stablize temperature of reaction.
Preferably, described carbon steel groove covers and is provided with vision slit and suspension hook; Carbon steel groove lid is removably disposed on carbon steel cell body.Open carbon steel groove lid by suspension hook is convenient, facilitate the cleaning of carbon steel cell body and the maintenance of interior arrangement.
Preferably, described carbon steel cell body is provided with ore pulp opening for feed, ore pulp discharge port, ore pulp drain and venting port.
Preferably, described ore pulp guide shell is evenly distributed in carbon steel cell body.The advantage herein designed is, not only balances the oxygen content in ore pulp, and improves stirring efficiency, makes stirring more abundant.
Preferably, be connected to total gas-filled valve at the entrance of air agitation pipe, the entrance of total gas-filled valve is connected with air flowmeter, first flow variable valve, pressure-pot and second adjustable valve in turn.First flow governor valve control pressure-pot enters the air flow quantity of air agitation pipe; Second Flux Valve Control compressor enters the air flow quantity of pressure-pot; Dual transport stream adjustable valve improves air flow quantity stability.
Preferably, described HVAC pipe is arranged on carbon steel cell body sidewall bottom.HVAC pipe is arranged on carbon steel cell body sidewall bottom, make use of the large feature of cold water density and make the ore pulp in carbon steel cell body form internal recycle, improve heating rate, make uniformity of temperature profile in carbon steel cell body.
Utilize above-mentioned air agitation Cyanide Leaching sluice to carry out putting forward a method for gold, comprise step as follows:
1) raw ore containing microfine sulfide trapping gold or cyaniding tailing are carried out fine grinding;
2) raw ore after fine grinding or cyaniding tailing are added sluice, form ore pulp after mixing with water, under the condition of 99KPa ~ 101KPa and 10 DEG C ~ 40 DEG C, pass into air or oxygen and stir, carry out Oxidation Leaching, wherein, leaching pH value is 10 ~ 12.
Preferably, described step 2) in the solid-to-liquid ratio of ore pulp be 2:1, the reaction times of Oxidation Leaching is 12 ~ 20h.Compared with conventional cyanidation, this gold extracting method cyaniding time shortens greatly, and cyanide leaching improves greatly.
Advantage of the present invention is:
1, air agitation Cyanide Leaching sluice of the present invention, is arranged on air agitation pipe in ore pulp guide shell and avoids air agitation pipe and directly contact with ore pulp, prevent ore pulp from entering air agitation pipe, causes plug pipe; Toggle speed is fast;
2, air agitation Cyanide Leaching sluice of the present invention, is stirred by airing form, realizes oxygenation while stirring, and achieve oxygen supply in advance, improve the duration of contact of oxygen and ore pulp, oxygenation is more abundant; In addition, the air outlet of air agitation pipe is arranged on the duration of contact also improving oxygen and ore pulp bottom carbon steel cell body;
3, air agitation Cyanide Leaching sluice of the present invention, is stirred by air agitation pipe, is provided with multiple air agitation pipe in carbon steel cell body, and anti-precipitation, square dead angle overcome traditional churned mechanically deficiency;
4, air agitation Cyanide Leaching sluice of the present invention, structure is simple, easy to operate, saving electric energy, cost are low, it is high to put forward golden speed; Safeguard simple, maintenance cost is low;
5, air agitation Cyanide Leaching of the present invention puies forward the method for gold, and carry out under the condition of 99KPa ~ 101KPa and 10 DEG C ~ 40 DEG C, belong to normal temperature and pressure conditions, requirement condition is low, and the reaction times is short, and production efficiency is high;
6, air agitation Cyanide Leaching of the present invention carry gold method, oxide treatment, alkaline purification and cyanidation-leaching process all in carbon steel cell body a step complete, improve production efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of air agitation Cyanide Leaching sluice of the present invention;
Fig. 2 is the vertical view of air agitation Cyanide Leaching sluice of the present invention;
Wherein, 1, second adjustable valve; 2, pressure-pot; 3, air flowmeter; 4, total gas-filled valve; 5, ore pulp discharge port; 6, fixing support rack; 7, HVAC pipe; 8, ore pulp guide shell; 9, carbon steel cell body; 10, ore pulp drain; 11, carbon steel groove lid; 12, suspension hook; 13, vision slit; 14, venting port; 15, ore pulp opening for feed; 16, first flow variable valve; 17, air agitation pipe; 18, the 3rd flow control valve.
Embodiment
Below embodiments of the invention are described in detail by reference to the accompanying drawings.
Embodiment 1
As shown in Figure 1-2.
A kind of air agitation Cyanide Leaching sluice, comprises carbon steel cell body 9, carbon steel groove lid 11, HVAC pipe 7 and seven ore pulp guide shells 8; Ore pulp guide shell 8 is vertically arranged in carbon steel cell body 9; Air agitation pipe 17 is provided with in described ore pulp guide shell 8; Described HVAC pipe 7 is around being arranged on carbon steel cell body 9 sidewall.Air agitation Cyanide Leaching sluice of the present invention in use, by compressor to input compressed-air in air agitation pipe 17, while oxygenation, plays the effect of stirring.Air agitation pipe 17 is arranged in ore pulp guide shell 8 and avoids air agitation pipe 17 and directly contact with ore pulp, prevent ore pulp from entering air agitation pipe 17, cause plug pipe.Another advantage of this structure is, the pressure air of in use air agitation pipe 17 output, not directly squeeze in the ore pulp of carbon steel cell body 9, but contact with ore pulp guide shell 8, reduce the diffusion that pressure air is horizontal in carbon steel cell body 9, improve the contact area of mixing effect, stirring efficiency, stirring amplitude and oxygen and ore pulp, do not need mechanical stirring to assist.
Embodiment 2
Air agitation Cyanide Leaching sluice as described in Example 1, its difference is, described carbon steel cell body 9 is cylindricality carbon steel cell body, and aspect ratio is 2; Ore pulp guide shell 8 is carbon steel material, and diameter is 500mm; The diameter of air agitation pipe 17 is 30mm; , described ore pulp guide shell 8 is 1000mm apart from carbon steel cell body 9 distance from bottom.In this distance range flowsheet of slurry agitation effect preferably and ore pulp dispersion better.
Embodiment 3
Air agitation Cyanide Leaching sluice as described in Example 1, its difference is, described HVAC pipe 7 diameter is 50mm, is provided with the 3rd flow control valve 18 at the entrance of HVAC pipe 7.Flow control valve enters the hot water flow in HVAC pipe 7 for controlling, HVAC pipe 7 in the winter time under cold climate to ore pulp heating, stablize temperature of reaction.
Embodiment 4
Air agitation Cyanide Leaching sluice as described in Example 1, its difference is, described carbon steel groove lid 11 is provided with vision slit 13 and suspension hook 12; Carbon steel groove lid 11 is removably disposed on carbon steel cell body 9.Open carbon steel groove lid 11 by suspension hook 12 is convenient, facilitate the cleaning of carbon steel cell body 9 and the maintenance of interior arrangement.
Embodiment 5
Air agitation Cyanide Leaching sluice as described in Example 1, its difference is, described carbon steel cell body 9 is provided with ore pulp opening for feed 15, ore pulp discharge port 5, ore pulp drain 10 and venting port 14.
Embodiment 6
Air agitation Cyanide Leaching sluice as described in Example 1, its difference is, described ore pulp guide shell 8 is evenly distributed in carbon steel cell body 9.The advantage herein designed is, not only balances the oxygen content in ore pulp, and improves stirring efficiency, makes stirring more abundant.
Embodiment 7
Air agitation Cyanide Leaching sluice as described in Example 1, its difference is, be connected to total gas-filled valve 4 at the entrance of air agitation pipe 17, the entrance of total gas-filled valve 4 is connected with air flowmeter 3, first flow variable valve 16, pressure-pot 2 and second adjustable valve 1 in turn.First flow variable valve 16 control pressure tank 2 enters the air flow quantity of air agitation pipe 17; Second adjustable valve 1 controls the air flow quantity that compressor enters pressure-pot 2; Dual transport stream adjustable valve improves air flow quantity stability.
Embodiment 8
Air agitation Cyanide Leaching sluice as described in Example 1, its difference is, described HVAC pipe 7 is arranged on carbon steel cell body 9 sidewall bottom.HVAC pipe 7 is arranged on carbon steel cell body 9 sidewall bottom, make use of the large feature of cold water density and make the ore pulp in carbon steel cell body 9 form internal recycle, improve heating rate, make uniformity of temperature profile in carbon steel cell body 9.
Embodiment 9
Utilize air agitation Cyanide Leaching sluice described in embodiment 1-8 to carry out putting forward a method for gold, comprise step as follows:
1) raw ore containing microfine sulfide trapping gold is carried out fine grinding;
2) raw ore after fine grinding is added sluice, form ore pulp after mixing with water, under the condition of 100KPa and 20 DEG C, pass into pneumatic blending, carry out Oxidation Leaching, wherein, leaching pH value is 11.
Embodiment 10
A kind of gold extracting method as described in Example 9, its difference is, described step 2) solid-to-liquid ratio of middle ore pulp is 2:1, the reaction times of Oxidation Leaching is 15h.Compared with conventional cyanidation, this gold extracting method cyaniding time shortens greatly, and cyanide leaching improves greatly.
Claims (10)
1. an air agitation Cyanide Leaching sluice, is characterized in that, comprises carbon steel cell body, carbon steel groove lid, HVAC pipe and multiple ore pulp guide shell; Ore pulp guide shell is vertically arranged in carbon steel cell body; Air agitation pipe is provided with in described ore pulp guide shell; Described HVAC pipe ring is around being arranged on carbon steel cell body sidewall.
2. air agitation Cyanide Leaching sluice according to claim 1, is characterized in that, described carbon steel cell body is cylindricality carbon steel cell body, and aspect ratio is 1 ~ 4; Ore pulp guide shell is carbon steel material, and diameter is 400 ~ 700mm; The diameter of air agitation pipe is 20 ~ 50mm; Described ore pulp guide shell distance carbon steel cell body distance from bottom is 500 ~ 1200mm.
3. air agitation Cyanide Leaching sluice according to claim 1, is characterized in that, described HVAC pipe diameter is 40 ~ 60mm, is provided with the 3rd flow control valve at the entrance of HVAC pipe.
4. air agitation Cyanide Leaching sluice according to claim 1, is characterized in that, described carbon steel groove covers and is provided with vision slit and suspension hook; Carbon steel groove lid is removably disposed on carbon steel cell body.
5. air agitation Cyanide Leaching sluice according to claim 1, is characterized in that, described carbon steel cell body is provided with ore pulp opening for feed, ore pulp discharge port, ore pulp drain and venting port.
6. air agitation Cyanide Leaching sluice according to claim 1, is characterized in that, described ore pulp guide shell is evenly distributed in carbon steel cell body.
7. air agitation Cyanide Leaching sluice according to claim 1, it is characterized in that, be connected to total gas-filled valve at the entrance of air agitation pipe, the entrance of total gas-filled valve is connected with air flowmeter, first flow variable valve, pressure-pot and second adjustable valve in turn.
8. air agitation Cyanide Leaching sluice according to claim 1, is characterized in that, described HVAC pipe is arranged on carbon steel cell body sidewall bottom.
9. air agitation Cyanide Leaching sluice described in claim 1-8 any one is applied to the method carrying gold, comprises step as follows:
1) raw ore containing microfine sulfide trapping gold or cyaniding tailing are carried out fine grinding;
2) raw ore after fine grinding or cyaniding tailing are added sluice, form ore pulp after mixing with water, under the condition of 99KPa ~ 101KPa and 10 DEG C ~ 40 DEG C, pass into air or oxygen and stir, carry out Oxidation Leaching, wherein, leaching pH value is 10 ~ 12.
10. gold extracting method according to claim 9, is characterized in that, described step 2) in the solid-to-liquid ratio of ore pulp be 2:1, the reaction times of Oxidation Leaching is 12 ~ 20h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201511003169.3A CN105400964B (en) | 2015-12-28 | 2015-12-28 | A kind of Aerated stirring Cyanide Leaching sluice and application |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511003169.3A CN105400964B (en) | 2015-12-28 | 2015-12-28 | A kind of Aerated stirring Cyanide Leaching sluice and application |
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| CN105400964B CN105400964B (en) | 2017-12-26 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105734280A (en) * | 2016-05-18 | 2016-07-06 | 招金矿业股份有限公司金翅岭金矿 | Square leaching tank |
| CN107261546A (en) * | 2017-05-19 | 2017-10-20 | 贵州大学 | Multifunctional continuous leaching device with heating and aeration performance |
| CN107297270A (en) * | 2017-08-10 | 2017-10-27 | 鹤庆北衙矿业有限公司 | A kind of oxysulphied ore deposit handling process |
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| CN201071388Y (en) * | 2007-08-21 | 2008-06-11 | 山东黄金集团有限公司三山岛金矿 | Leaching tank for gold ore sorting |
| CN201141037Y (en) * | 2007-11-27 | 2008-10-29 | 灵宝市金源矿业有限责任公司 | Microvesicle oxidization gold extraction leaching tank |
| CN201543508U (en) * | 2009-11-24 | 2010-08-11 | 鞍钢集团矿业公司 | Device for enhancing downward-cycling of ore pulp flow in flotator |
| CN201574188U (en) * | 2009-10-12 | 2010-09-08 | 吉林吉恩镍业股份有限公司 | Air-filling type biological oxidation tank |
| CN105039737A (en) * | 2015-08-31 | 2015-11-11 | 长沙矿冶研究院有限责任公司 | Gold extraction technique method for low-grade refractory gold ores |
| CN205295430U (en) * | 2015-12-28 | 2016-06-08 | 甘肃招金贵金属冶炼有限公司 | Sluice is leached in air agitation cyaniding |
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2015
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| CN2432223Y (en) * | 2000-07-19 | 2001-05-30 | 中国科学院金属研究所 | Strong-base soaking pretreatment stirring tank for arsenic-containing hard-processing gold ore |
| CN201071388Y (en) * | 2007-08-21 | 2008-06-11 | 山东黄金集团有限公司三山岛金矿 | Leaching tank for gold ore sorting |
| CN201141037Y (en) * | 2007-11-27 | 2008-10-29 | 灵宝市金源矿业有限责任公司 | Microvesicle oxidization gold extraction leaching tank |
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| CN201543508U (en) * | 2009-11-24 | 2010-08-11 | 鞍钢集团矿业公司 | Device for enhancing downward-cycling of ore pulp flow in flotator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105734280A (en) * | 2016-05-18 | 2016-07-06 | 招金矿业股份有限公司金翅岭金矿 | Square leaching tank |
| CN105734280B (en) * | 2016-05-18 | 2018-08-24 | 招金矿业股份有限公司金翅岭金矿 | A kind of rectangular leaching tanks |
| CN107261546A (en) * | 2017-05-19 | 2017-10-20 | 贵州大学 | Multifunctional continuous leaching device with heating and aeration performance |
| CN107297270A (en) * | 2017-08-10 | 2017-10-27 | 鹤庆北衙矿业有限公司 | A kind of oxysulphied ore deposit handling process |
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| CN105400964B (en) | 2017-12-26 |
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Effective date of registration: 20180404 Address after: In the 730512 Gansu circular economy industrial park Lintao County of Dingxi Province Co-patentee after: Ejinaqi round Mining Co., Ltd. Patentee after: GANSU ZHAOJIN PRECIOUS METALS SMELTING CO., LTD. Address before: In the 730512 Gansu circular economy industrial park Lintao County of Dingxi Province Patentee before: GANSU ZHAOJIN PRECIOUS METALS SMELTING CO., LTD. |
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Effective date of registration: 20180522 Address after: 730512 Gansu Dingxi Lintao County Central shop circular economy industrial park Patentee after: GANSU ZHAOJIN PRECIOUS METALS SMELTING CO., LTD. Address before: 730512 Gansu Dingxi Lintao County Central shop circular economy industrial park Co-patentee before: Ejinaqi round Mining Co., Ltd. Patentee before: GANSU ZHAOJIN PRECIOUS METALS SMELTING CO., LTD. |