CN104250693A - Novel environmentally-friendly precious metal mineral separation agent - Google Patents
Novel environmentally-friendly precious metal mineral separation agent Download PDFInfo
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- CN104250693A CN104250693A CN201310257252.8A CN201310257252A CN104250693A CN 104250693 A CN104250693 A CN 104250693A CN 201310257252 A CN201310257252 A CN 201310257252A CN 104250693 A CN104250693 A CN 104250693A
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- precious metal
- friendly
- mineral separation
- nitrate
- metal mineral
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- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 20
- 239000010970 precious metal Substances 0.000 title claims abstract description 12
- 229910052500 inorganic mineral Inorganic materials 0.000 title abstract 4
- 239000011707 mineral Substances 0.000 title abstract 4
- 238000000926 separation method Methods 0.000 title abstract 4
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 claims abstract description 18
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 12
- RLJMLMKIBZAXJO-UHFFFAOYSA-N lead nitrate Chemical compound [O-][N+](=O)O[Pb]O[N+]([O-])=O RLJMLMKIBZAXJO-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 8
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 claims abstract description 6
- JNVCSEDACVAATK-UHFFFAOYSA-L [Ca+2].[S-]SSS[S-] Chemical compound [Ca+2].[S-]SSS[S-] JNVCSEDACVAATK-UHFFFAOYSA-L 0.000 claims abstract description 6
- 239000012286 potassium permanganate Substances 0.000 claims abstract description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 6
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims abstract description 6
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims abstract description 4
- 239000001110 calcium chloride Substances 0.000 claims abstract description 4
- 229910001628 calcium chloride Inorganic materials 0.000 claims abstract description 4
- PPNKDDZCLDMRHS-UHFFFAOYSA-N dinitrooxybismuthanyl nitrate Chemical compound [Bi+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O PPNKDDZCLDMRHS-UHFFFAOYSA-N 0.000 claims description 10
- 235000007715 potassium iodide Nutrition 0.000 claims description 5
- 229960004839 potassium iodide Drugs 0.000 claims description 5
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 claims description 3
- AMAICRYCMCVAHT-UHFFFAOYSA-K calcium;sodium;trichloride Chemical compound [Na+].[Cl-].[Cl-].[Cl-].[Ca+2] AMAICRYCMCVAHT-UHFFFAOYSA-K 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 24
- 229910052737 gold Inorganic materials 0.000 abstract description 10
- 239000010931 gold Substances 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 8
- 238000002386 leaching Methods 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000011084 recovery Methods 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052787 antimony Inorganic materials 0.000 abstract description 2
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 abstract description 2
- -1 gold ions Chemical class 0.000 abstract description 2
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 2
- 239000003381 stabilizer Substances 0.000 abstract 2
- 239000005866 Lime sulphur Substances 0.000 abstract 1
- 239000005708 Sodium hypochlorite Substances 0.000 abstract 1
- 238000005256 carbonitriding Methods 0.000 abstract 1
- RXPAJWPEYBDXOG-UHFFFAOYSA-N hydron;methyl 4-methoxypyridine-2-carboxylate;chloride Chemical compound Cl.COC(=O)C1=CC(OC)=CC=N1 RXPAJWPEYBDXOG-UHFFFAOYSA-N 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 239000011780 sodium chloride Substances 0.000 abstract 1
- 229910052717 sulfur Inorganic materials 0.000 abstract 1
- 239000011593 sulfur Substances 0.000 abstract 1
- 238000005303 weighing Methods 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 239000003814 drug Substances 0.000 description 9
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 8
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 6
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 229910021607 Silver chloride Inorganic materials 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- KZNMRPQBBZBTSW-UHFFFAOYSA-N [Au]=O Chemical compound [Au]=O KZNMRPQBBZBTSW-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 229910001922 gold oxide Inorganic materials 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 231100000053 low toxicity Toxicity 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 231100001010 corrosive Toxicity 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 244000144980 herd Species 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 239000000941 radioactive substance Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- DHCDFWKWKRSZHF-UHFFFAOYSA-N sulfurothioic S-acid Chemical compound OS(O)(=O)=S DHCDFWKWKRSZHF-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a novel environmentally-friendly precious metal mineral separation agent. The novel environmentally-friendly precious metal mineral separation agent comprises, by mass, 2.5% of sodium carbonate, 2.5% of sodium chloride, 2.5% of calcium chloride, 2.5% of lead nitrate, 10% of bismuth nitrate, 10% of ammonium nitrate, 10% of potassium permanganate, 20% of sodium hypochlorite, 20% of potassium iodide and 20% of lime sulphur. The lead nitrate is used as a stabilizing agent. A preparation method of the novel environmentally-friendly precious metal mineral separation agent comprises simple processes of weighing the raw materials according to the above ratio and mixing the raw materials to obtain a uniform mixture, wherein the mixture is powder, has good solubility and can be completely dissolved in 10min by an appropriate amount of water. The method can realize effective leaching of gold ions, improves a recovery rate and is suitable for large-scale production. The method utilizes lead nitrate as an effective stabilizing agent thereby reducing interference produced by harmful substances such as sulfur and antimony. Compared with the conventional carbonitriding dump leaching, the method shortens a production period by 20%.
Description
Technical field
The present invention relates to a kind of beneficiation reagent, particularly for a kind of novel environment-friendly precious metal dressing agent of gold oxide ores and cerargyrite.
Background technology
At present, the ore dressing of precious metal ore dressing, particularly kustelite mainly adopts cyanide process, and the gold of more than 85% all extracts by cyanide process in the world at present.Producing gold by cyanide process, is a kind of comparatively ripe technique.Its advantage is that technique is simple, and production cost is low, and to ore strong adaptability, leaching yield is high; Shortcoming be extraction time long, to personnel safety and agriculture, herd, the harm of fishery and environmental pollution all very serious.Along with the requirement of environmental protection is increasingly strict; particularly within 1989, promulgate after " Environment Protect in China method "; force enterprise while improvement gold and silver produces environmental pollution, the research of expedite clean-up production technique, to impel gold and silver production technology towards future development that is pollution-free or less contamination.
In order to solve the hypertoxic pollution problem of prussiate, in decades, both at home and abroad about scholar expands a large amount of Test And Research Works in succession, strive to find the dressing agent without cyanogen, nontoxic or low toxicity, the leaching gold agent studied has tens kinds, such as: sulphur pulpating method, water-chlorine process, coal gold agglomeration method, thiosulfate technique, hypochlorite method etc., in these methods, restriction is applied to industrial subject matter without cyanogen gold-leaching technology is that production cost is high, technique is comparatively complicated and stability of the production process is poor.So people also explore that some costs are low in recent years, good stability, environmental pollution are few without cyanogen, nontoxic or low toxicity dressing agent always.
Summary of the invention
The object of this invention is to provide a kind of pollution problem that can overcome existing prussiate, for the dressing agent of gold oxide ores and cerargyrite, this dressing agent has the advantages that the high and low poison ring of the rate of recovery is protected, production stability is good.
The technical solution adopted for the present invention to solve the technical problems is: a kind of novel environment-friendly precious metal dressing agent, raw material is composed as follows: sodium carbonate, sodium-chlor, calcium chloride, lead nitrate, Bismuth trinitrate, ammonium nitrate, potassium permanganate, clorox, potassiumiodide, lime sulfur mixture.
The mass percent of above-mentioned raw materials composition is as follows: sodium carbonate 2.5%, sodium-chlor 2.5%, calcium chloride 2.5%, lead nitrate 2.5%, Bismuth trinitrate 10%, ammonium nitrate 10%, potassium permanganate 10%, clorox 20%, potassiumiodide 20%, lime sulfur mixture 20%.
Described lead nitrate is stablizer.
The preparation process of dressing agent of the present invention is simple, and weighed by proportioning by raw material, mix, its state is Powdered, and solubility is good, and when the water yield is suitable for, 10min can dissolve completely.
Beneficial effect of the present invention is:
1, the rate of recovery is high: effectively Leaching of Gold ion improves the rate of recovery, is applicable to large-scale production; 2, good stability: add effective stablizer lead nitrate, reduces the interference of the objectionable impurities such as sulphur, antimony;
3, recovery is faster: compare conventional cyanidation heap and drench production, the cycle can shorten 20%; 4, low toxic and environment-friendly: belong to general chemical product, greatly alleviate the pollution of production and poisoning harm;
5, consumption is more economized: adopt import starting material to process, usage quantity is more economized; 6, easy to use: to drench production technique unanimously with conventional cyaniding heap, easy to use; 7, be convenient to transport: without explosion hazard, do not belong to flammability hazard product, anaerobic agent dangerous, do not belong to 6.1 poisonous substances, do not belong to radioactive substance, do not belong to corrosives, highway, railway, aviation, sea-freight can be adopted to transport;
8, cost is lower: save transport, keeping, safety features and handling cost.
Embodiment
Below describe embodiments of the invention in detail, but protection scope of the present invention is not limited to following examples.
The invention provides a kind of novel environment-friendly precious metal dressing agent, its raw material composition and percentage composition composed as follows: sodium carbonate 2.5%, sodium-chlor 2.5%, calcium chloride 2.5%, lead nitrate 2.5%, Bismuth trinitrate 10%, ammonium nitrate 10%, potassium permanganate 10%, clorox 20%, potassiumiodide 20%, lime sulfur mixture 20%, weigh by proportioning, Homogeneous phase mixing.
Construction process is: 1, regulate basicity: after raw ore enters pond or upper heap, and first backwater regulates basicity to make PH reach optimum value 10.5, and controls PH value, at 10-12, when PH is less than 10, adds liming or caustic soda (as far as possible using caustic soda less) arrives tune medicine pond;
2, calculating is made up a prescription: after backwater regulates PH to reach requirement, calculate the water yield in pond, weigh and put medicine, take ore dressing medicine with the ratio of one kilogram, every cube of water a kind of novel environment-friendly dressing agent of the present invention by the water yield.Hang in the gunnysack containing medicines of porous and adjust medicine pond, shake every several minutes, until medicine dissolves completely;
3, molten golden process: pond infusion method, the liquid medicine mixed up, from pond, pond for recovering suction ore deposit, discharges water to after two hour of immersion, checks and regulates pH value and drug concentration.PH value adds liming or a small amount of caustic soda not.Molten concentration will be adjusted to 1.5 ‰, and the method for calculation of chemical feeding quantity are (1.5-now survey concentration value) × pond for recovering water yields.After medicine has dissolved, be namely drawn into pond, ore deposit soak mistake charcoal after 6 hours again.
Choose the raw ore that gold content is 3.2%, after the leaching of pond, the content of mine tailing gold is 0.1%, and the rate of recovery reaches 96.88%.
Claims (3)
1. a novel environment-friendly precious metal dressing agent, is characterized in that: the raw material of described dressing agent is composed as follows: sodium carbonate, sodium-chlor, calcium chloride, lead nitrate, Bismuth trinitrate, ammonium nitrate, potassium permanganate, clorox, potassiumiodide, lime sulfur mixture.
2. a kind of novel environment-friendly precious metal dressing agent as claimed in claim 1, is characterized in that: the mass percent of above-mentioned raw materials composition is as follows:
Sodium carbonate 2.5%,
Sodium-chlor 2.5%,
Calcium chloride 2.5%,
Lead nitrate 2.5%,
Bismuth trinitrate 10%,
Ammonium nitrate 10%,
Potassium permanganate 10%,
Clorox 20%,
Potassiumiodide 20%,
Lime sulfur mixture 20%.
3. a kind of novel environment-friendly precious metal dressing agent as described in claim 1-2, is characterized in that: described lead nitrate is stablizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310257252.8A CN104250693B (en) | 2013-06-26 | 2013-06-26 | A kind of environment-friendly type precious metal dressing agent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310257252.8A CN104250693B (en) | 2013-06-26 | 2013-06-26 | A kind of environment-friendly type precious metal dressing agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104250693A true CN104250693A (en) | 2014-12-31 |
| CN104250693B CN104250693B (en) | 2015-10-21 |
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|---|---|---|---|
| CN201310257252.8A Active CN104250693B (en) | 2013-06-26 | 2013-06-26 | A kind of environment-friendly type precious metal dressing agent |
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| Country | Link |
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| CN (1) | CN104250693B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105950884A (en) * | 2016-04-27 | 2016-09-21 | 天津华勘矿业选冶技术开发有限公司 | Environmental-protection gold leaching agent and preparation method thereof |
| CN107794375A (en) * | 2017-04-13 | 2018-03-13 | 湖南有色金属研究院 | A kind of method that gold, silver are extracted from difficult low-grade pyrite cinder |
| CN109136552A (en) * | 2018-10-29 | 2019-01-04 | 新疆金川矿业有限公司 | A kind of improved environment protection proposes golden agent |
| CN111485116A (en) * | 2020-05-12 | 2020-08-04 | 深圳金贝得科技发展有限公司 | Efficient environment-friendly gold removing powder and gold recovery process |
| CN112501450A (en) * | 2020-10-28 | 2021-03-16 | 黄伟 | Gold extraction agent for treating high-sulfur high-arsenic gold ore and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1222581A (en) * | 1997-09-24 | 1999-07-14 | 黄聪祥 | Preparation for cyaniding gold extraction from auriferous copper-zinc ore |
| CN102121067A (en) * | 2010-12-15 | 2011-07-13 | 广西富皇矿业有限公司 | Nuisanceless oredressing additive as well as preparation method and application thereof |
| CN102634661A (en) * | 2012-04-06 | 2012-08-15 | 中南大学 | Application of additive in enhancing oxidization of arsenical gold mineral by bacteria |
-
2013
- 2013-06-26 CN CN201310257252.8A patent/CN104250693B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1222581A (en) * | 1997-09-24 | 1999-07-14 | 黄聪祥 | Preparation for cyaniding gold extraction from auriferous copper-zinc ore |
| CN102121067A (en) * | 2010-12-15 | 2011-07-13 | 广西富皇矿业有限公司 | Nuisanceless oredressing additive as well as preparation method and application thereof |
| CN102634661A (en) * | 2012-04-06 | 2012-08-15 | 中南大学 | Application of additive in enhancing oxidization of arsenical gold mineral by bacteria |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105950884A (en) * | 2016-04-27 | 2016-09-21 | 天津华勘矿业选冶技术开发有限公司 | Environmental-protection gold leaching agent and preparation method thereof |
| CN107794375A (en) * | 2017-04-13 | 2018-03-13 | 湖南有色金属研究院 | A kind of method that gold, silver are extracted from difficult low-grade pyrite cinder |
| CN109136552A (en) * | 2018-10-29 | 2019-01-04 | 新疆金川矿业有限公司 | A kind of improved environment protection proposes golden agent |
| CN109136552B (en) * | 2018-10-29 | 2020-07-31 | 新疆金川矿业有限公司 | Improved environment-friendly gold extraction agent |
| CN111485116A (en) * | 2020-05-12 | 2020-08-04 | 深圳金贝得科技发展有限公司 | Efficient environment-friendly gold removing powder and gold recovery process |
| CN112501450A (en) * | 2020-10-28 | 2021-03-16 | 黄伟 | Gold extraction agent for treating high-sulfur high-arsenic gold ore and preparation method thereof |
| CN112501450B (en) * | 2020-10-28 | 2022-07-22 | 黄伟 | Gold extraction agent for treating high-sulfur high-arsenic gold ore and preparation method thereof |
Also Published As
| Publication number | Publication date |
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| CN104250693B (en) | 2015-10-21 |
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Application publication date: 20141231 Assignee: Hubei Dazhi Jinxin Environmental Technology Co. Ltd. Assignor: Zuo Liangcai Contract record no.: 2015420000007 Denomination of invention: Novel environmentally-friendly precious metal mineral separation agent License type: Exclusive License Record date: 20150109 |
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Effective date of registration: 20151224 Address after: 6 Building No. 3, Kaiyuan Road, Daye Economic Development Zone, Hubei, Huangshi 435100, China Patentee after: DAYE JINXIN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: 435100 Huangshi city of Hubei province Daye city Jinhu office Song Jia Tu Jia Wan Cun Zuo 1-15. Patentee before: Zuo Liangcai |
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Effective date of registration: 20240909 Address after: No. 607, 6th Floor, Block A, Changlin Center, No. 17 Geyun Road, Nanning Area, China (Guangxi) Pilot Free Trade Zone, Nanning City, Guangxi Zhuang Autonomous Region 530000 Patentee after: Guangxi Zhongjin Mineral Group Co.,Ltd. Country or region after: China Address before: Building 6, No. 3 Kaiyuan Avenue, Daye Economic Development Zone, Huangshi City, Hubei Province, 435100 Patentee before: DAYE JINXIN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Country or region before: China |
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