CN103184345A - Method for removing iron and enriching platinum group metals from smelted iron trapping material - Google Patents
Method for removing iron and enriching platinum group metals from smelted iron trapping material Download PDFInfo
- Publication number
- CN103184345A CN103184345A CN2013100992977A CN201310099297A CN103184345A CN 103184345 A CN103184345 A CN 103184345A CN 2013100992977 A CN2013100992977 A CN 2013100992977A CN 201310099297 A CN201310099297 A CN 201310099297A CN 103184345 A CN103184345 A CN 103184345A
- Authority
- CN
- China
- Prior art keywords
- iron
- platinum metals
- platinum group
- group metal
- reaction
- 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
Images
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 method for removing iron and enriching platinum group metals from smelted iron trapping material. The method is characterized by comprising the following steps: the fine grinded smelting iron trapping material is added into the mixed solution medium which is composed of dilute acid and ammonium salt with a solid-to-liquid ratio ranging from 1:3 to 1:5; air is inflated into the medium with a flow rate of 5-10 m <3>*min<-1>*m<-3>; the mixed solution is stirred and reacted for 2 to 6 hours at the temperature of 40-70 degrees; iron in the material is subjected to corrosion reaction to form iron oxide; the iron oxide and platinum group metal are separated by using a gravity separation method after the reaction is finished; the iron is removed in the form of oxide and the removal ratio is above 85 percent; and the platinum group metal enriches by 4 to 5 times. The method can remove the iron and enrich the platinum group metal from the iron trapping platinum group metal material obtained by a fire smelting process, the process of the method is simple, free from contamination and low in cost, the waste liquor can be recycled, and the obtained iron oxide can be used as a trapping agent in the fire smelting process of platinum group metal.
Description
Technical field
The present invention relates to a kind ofly capture the method for deironing enrichment platinum metals the material from smelting iron, particularly adopt the method for hydrometallurgy and ore dressing process integration deironing enrichment platinum metals from smelting iron capture material.
Background technology
Reclaim the field in the platinum metals, it is a kind of effective recovery method that the pyrometallurgical smelting metal captures the platinum metals.The platinum metals is close iron, and at high temperature, iron can form continuous solid solution with the platinum metals.In general, after iron captures melting, platinum metals content ~ 5% in the material of gained, iron level 70 ~ 95%, because of materials variance, iron level is slightly variant.To the platinum group burning ashes that produce in the nitric acid production, Kunming Institute of Precious Metals and Taiyuan Chemical Fertilizer Factory, be trapping agent with himself contained iron, adopt electric arc furnace retailoring, the platinum group metallic iron alloy of retailoring gained carries out oxidation refining again, when the carbon content in the iron drops to 0.5% when following, adopt the hydrochloric acid of 6mol/L to leach iron, can obtain the platinum metals concentrate of platinum group metal 10% ~ 15%.Plasma melting reclaims the platinum metals from vehicle exhaust spent catalyst and chemical catalyst be the new technology that occurs the eighties in last century, be trapping agent with iron or ferriferous oxide, by the plasma high-temperature melting, platinum metals in the catalyzer is enriched in the metal iron phase, wherein platinum metals content is about 5%, iron level is more than 90%, adopts sour stripping iron again, realizes the platinum metals enrichment.Chinese patent (200910094112) ore phase reconstruction extracts from auto-exhaust catalyst in the method for platinum metals and mentions, to auto-exhaust catalyst, be trapping agent with the iron ore, by adding slag making, reductive agent, in electric arc furnace, carry out retailoring, obtain platinum group metallic iron alloy, adopt the sulfuric acid of 1 ~ 4mol/L again, with liquid-solid ratio 4 ~ 12, selectivity stripping iron obtains the platinum metals concentrate.These class methods need a large amount of acid to remove stripping iron, produce a large amount of acid ferrous sulfate waste liquids, and the acid consumption is high, and waste liquid amount is big, deficiency in economic performance.
C.G.Aderson proposes to adopt nitrous acid-sulfuric acid pressurization leaching-out technique to handle pyrometallurgical smelting iron and capture the platinum metals material, under 50 ~ 155 ℃ of temperature, and 90 pounds/inch of pressure
2Autoclave in pressurization leach iron, obtain platinum metals enrichment slag, palladium and the rhodium of part also are dissolved in this process, need to adopt suitable technology to reclaim.Chinese patent (01122339) reclaims to mention in the method for platinum metals from melting trapped material and adopts vitriol oil digestion to handle, with liquid-solid ratio 10:3 ~ 6,160 ~ 250 ℃ of temperature, leach 2 ~ 4h, iron is dissolved with the form of ferrous sulfate, obtain platinum metals enrichment slag, and then adopt other technologies to reclaim the platinum metals.These class methods need high temperature high pressure process, to the equipment requirements height, produce a large amount of spent acid waste liquids, and environmental issue is outstanding, also has the platinum metals scattering problem simultaneously, need to increase the subsequent disposal operation.
Mention in people's such as S.D.MCCULLOUGH the research, to the low-sulfur platinum metals iron alloy (Fe 70 ~ 85%) of Mintek company, adopt oxidation blowing technology to carry out deironing, by adding CaO, SiO
2And AlO
3, under 1500 ℃ temperature, logical oxygen or air blow and make the iron oxidation enter the slag phase in electric arc furnace, and separate with iron the realization platinum metals, and the clearance of iron reaches about 80%.There is the temperature height in this technology, energy consumption height, problems such as cost height.
Therefore, the method that captures deironing enrichment platinum metals the material of platinum metals from pyrometallurgical smelting iron of developing a kind of economy, cleaning is very important.For this reason, special proposition the present invention.
Summary of the invention
The objective of the invention is to capture at platinum metals resource pyrometallurgical smelting iron the material of gained, the hydrometallurgy of a kind of cleanliness without any pollution of research invention and ore dressing process integration technology are except the method for thing iron enrichment platinum metals material, be conducive to reduce the acid consumption, reduce the discharging of waste liquid amount, reduce cost, realize the recycle of waste liquid and iron simultaneously, improve environment.
The present invention proposes a kind ofly to capture the method for deironing enrichment platinum metals the material from smelting iron, and the pyrometallurgical smelting iron of fine grinding is captured material, with the ratio of solid-to-liquid ratio 1:3～1:5, joins in the mixing solutions of diluted acid and ammonium salt, with 5 ~ 10m
3Min
-1M
-3Flow toward wherein the inflation, stirring reaction 2 ~ 6h under 40 ~ 70 ℃ of temperature, iron generation corrosion reaction in the material forms ferriferous oxide, after reaction finishes, adopt reselecting method separation of iron oxide compound and platinum metals, the clearance of iron reaches more than 85%, and 4 ~ 5 times of platinum metals enrichments realize the purpose of deironing, enrichment platinum metals.Adopt the acid of lower concentration and the mixed solution system of ammonium salt composition to make iron generation corrosion electrochemical reaction in this processing method, generate ferriferous oxide; Adopt traditional gravity treatment technical point from platinum metals and ferriferous oxide again, after the solid-liquid separation, filtrate can be returned use, and ferriferous oxide can return the trapping agent of the process that captures as platinum metals resource smelting iron, realizes recycle fully.Technical process of the present invention is simple, no waste residue, discharging of waste liquid, and cleanliness without any pollution, with low cost, the economic benefit height.
Principle of the present invention is: one, the corrosion electrochemical reaction takes place in the iron in the smelting iron capture material in the medium system of being made up of diluted acid and ammonium salt solution, forms the proportion ferriferous oxide little than the platinum metals.Two, according to the difference of different substances proportion in the ore pulp, adopt the mode of gravity treatment to separate, the platinum metals is separated with ferriferous oxide.
Description of drawings
Accompanying drawing is process flow diagram of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is further specified
Embodiment 1, and referring to accompanying drawing, the pyrometallurgical smelting iron that takes by weighing the 50g fine grinding captures material, and (100mm), joining concentration with solid-to-liquid ratio 1:3 is in 2% ammonium chloride solution, presses 5m
3Min
-1M
-3Flow bubbling air in the ore pulp, under 50 ℃ of temperature, stir 4h, after reaction finishes, adopt shaking table to separate institute's ore pulp, obtain platinum metals concentrate and ferriferous oxide.The clearance of iron reaches more than 80%, about 4 times of platinum metals enrichments; Gained ferriferous oxide iron grade can be returned the trapping agent of the process that captures for pyrometallurgical smelting iron greater than 65%.
Embodiment 2, and referring to accompanying drawing, the pyrometallurgical smelting iron that takes by weighing the 50g fine grinding captures material, and (100mm), joining mass concentration by liquid-solid ratio 1:4 is that 2% hydrochloric acid and concentration are in the mixing solutions of 1.6% ammonium chloride, presses 10m
3Min
-1M
-3Flow bubbling air in the ore pulp, stirring reaction 6h under 60 ℃ of temperature after reaction finishes, adopts shaking table to carry out sorting institute's ore pulp, obtains platinum metals concentrate and ferriferous oxide.The clearance of iron reaches more than 84%, about 4.5 times of platinum metals enrichments; Gained ferriferous oxide iron grade can be returned the trapping agent of the process that captures for pyrometallurgical smelting iron greater than 65%.
Embodiment 3, and referring to accompanying drawing, the pyrometallurgical smelting iron that takes by weighing the 50g fine grinding captures material, and (100mm), joining mass concentration by liquid-solid ratio 1:5 is that 4% hydrochloric acid and concentration are in the mixing solutions of 2% ammonium chloride, presses 10m
3Min
-1M
-3Flow in ore pulp, feed industrial oxygen, stirring reaction 6h under 70 ℃ of temperature after reaction finishes, adopts shaking table to carry out sorting institute's ore pulp, obtains platinum metals concentrate and ferriferous oxide, the clearance of iron reaches about 86%, about 4.5 times of platinum metals enrichments; Gained ferriferous oxide iron grade can be returned the trapping agent of the process that captures for pyrometallurgical smelting iron greater than 65%.
Embodiment 4, and referring to accompanying drawing, the pyrometallurgical smelting iron that takes by weighing the 50g fine grinding captures material, and (100mm), joining mass concentration by liquid-solid ratio 1:5 is that 4% hydrochloric acid and concentration are in the mixing solutions of 2% Neutral ammonium fluoride, presses 10m
3Min
-1M
-3Flow bubbling air in the ore pulp, under 70 ℃ of temperature, stir 6h, after reaction finishes, adopt hydrocyclone to carry out sorting institute's ore pulp, obtain platinum metals concentrate and ferriferous oxide, the clearance of iron reaches about 87%, about 5 times of platinum metals enrichments; Gained ferriferous oxide iron grade can be returned the trapping agent of the process that captures for pyrometallurgical smelting iron greater than 65%.
Claims (5)
1. one kind captures the method for deironing enrichment platinum metals the material from smelting iron, it is characterized in that: the pyrometallurgical smelting iron of fine grinding is captured the platinum metals material, with the ratio of solid-to-liquid ratio 1:3～1:5, join in the solution medium system of being formed by diluted acid and ammonium salt, with 5～10m
3Min
-1M
-3Flow toward wherein charging into gas, stirring reaction 2～6h under 40～70 ℃ of temperature, the iron generation corrosion reaction in the material forms ferriferous oxide, after reaction finishes, adopts reselecting method separation of iron oxide compound and platinum metals.
2. method according to claim 1 is characterized in that, described material is the alloy material that smelting iron captures the platinum metals gained.
3. method according to claim 1 is characterized in that, diluted acid is that mass concentration is 0～4% hydrochloric acid or sulfuric acid in the described solution medium system, and ammonium salt is that concentration is 1～2% ammonium chloride or Neutral ammonium fluoride.
4. method according to claim 1 is characterized in that, described gas is one or more in air, oxygen-rich air or the oxygen.
5. method according to claim 1 is characterized in that, described reselection modes is shaking table or hydrocyclone sorting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100992977A CN103184345A (en) | 2013-03-26 | 2013-03-26 | Method for removing iron and enriching platinum group metals from smelted iron trapping material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100992977A CN103184345A (en) | 2013-03-26 | 2013-03-26 | Method for removing iron and enriching platinum group metals from smelted iron trapping material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103184345A true CN103184345A (en) | 2013-07-03 |
Family
ID=48675790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100992977A Pending CN103184345A (en) | 2013-03-26 | 2013-03-26 | Method for removing iron and enriching platinum group metals from smelted iron trapping material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103184345A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104073625A (en) * | 2014-07-14 | 2014-10-01 | 贵研资源（易门）有限公司 | Pretreatment method before enriching and recycling precious of metal in plasma smelting |
| CN104372173A (en) * | 2014-10-08 | 2015-02-25 | 云龙县铂翠贵金属科技有限公司 | Method for enrichment of platinum in fluorine-containing spent platinum catalyst |
| CN111304449A (en) * | 2020-04-03 | 2020-06-19 | 昆明寰世科技开发有限公司 | Method for recovering platinum group metal from spent automobile exhaust catalyst |
| CN111411239A (en) * | 2020-04-03 | 2020-07-14 | 昆明寰世科技开发有限公司 | Method for recovering platinum group metal and co-producing aluminum oxide concentrate from spent aluminum-based catalyst |
| CN111424177A (en) * | 2020-05-14 | 2020-07-17 | 昆明寰世科技开发有限公司 | Method for enriching platinum group metals from spent automobile exhaust catalyst |
| EP3907305A4 (en) * | 2020-07-03 | 2022-05-04 | University Of Science And Technology Beijing | Method for designing slag type for capturing platinum group metal in waste catalyst by using iron |
| CN114703375A (en) * | 2022-03-04 | 2022-07-05 | 金川集团股份有限公司 | Method for removing impurities in high-iron-content noble metal alloy |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02209434A (en) * | 1989-02-09 | 1990-08-20 | Tanaka Kikinzoku Kogyo Kk | Method for recovering plantinum group metal from metallic carrier catalyst |
| CN1045255A (en) * | 1989-03-02 | 1990-09-12 | 江汉大学 | Remove air oxidation process of iron in the aqueous solution and products thereof |
| CN1172167A (en) * | 1996-07-25 | 1998-02-04 | 冶金工业部长沙矿冶研究院 | Smelting-rusting-extraction method for extracting valuable metals from ocean polymetallic nodule |
| CN1997761A (en) * | 2003-10-14 | 2007-07-11 | 秦仁洙 | Recovery of precious metals from waste catalysts |
| CN101509077A (en) * | 2009-02-19 | 2009-08-19 | 昆明贵金属研究所 | Method for extracting platinum, palladium, rhodium from automotive catalyst of ore phase reconstruction |
| CN102168157A (en) * | 2009-12-21 | 2011-08-31 | 李维成 | Method for reducing nickel ore by using reducing rotary kiln and producing ferronickel by rusting electric furnace |
| WO2012024124A2 (en) * | 2010-08-16 | 2012-02-23 | Chevron U.S.A. Inc. | Process for separating and recovering metals |
-
2013
- 2013-03-26 CN CN2013100992977A patent/CN103184345A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02209434A (en) * | 1989-02-09 | 1990-08-20 | Tanaka Kikinzoku Kogyo Kk | Method for recovering plantinum group metal from metallic carrier catalyst |
| CN1045255A (en) * | 1989-03-02 | 1990-09-12 | 江汉大学 | Remove air oxidation process of iron in the aqueous solution and products thereof |
| CN1172167A (en) * | 1996-07-25 | 1998-02-04 | 冶金工业部长沙矿冶研究院 | Smelting-rusting-extraction method for extracting valuable metals from ocean polymetallic nodule |
| CN1997761A (en) * | 2003-10-14 | 2007-07-11 | 秦仁洙 | Recovery of precious metals from waste catalysts |
| CN101509077A (en) * | 2009-02-19 | 2009-08-19 | 昆明贵金属研究所 | Method for extracting platinum, palladium, rhodium from automotive catalyst of ore phase reconstruction |
| CN102168157A (en) * | 2009-12-21 | 2011-08-31 | 李维成 | Method for reducing nickel ore by using reducing rotary kiln and producing ferronickel by rusting electric furnace |
| WO2012024124A2 (en) * | 2010-08-16 | 2012-02-23 | Chevron U.S.A. Inc. | Process for separating and recovering metals |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104073625A (en) * | 2014-07-14 | 2014-10-01 | 贵研资源（易门）有限公司 | Pretreatment method before enriching and recycling precious of metal in plasma smelting |
| CN104372173A (en) * | 2014-10-08 | 2015-02-25 | 云龙县铂翠贵金属科技有限公司 | Method for enrichment of platinum in fluorine-containing spent platinum catalyst |
| CN111304449A (en) * | 2020-04-03 | 2020-06-19 | 昆明寰世科技开发有限公司 | Method for recovering platinum group metal from spent automobile exhaust catalyst |
| CN111411239A (en) * | 2020-04-03 | 2020-07-14 | 昆明寰世科技开发有限公司 | Method for recovering platinum group metal and co-producing aluminum oxide concentrate from spent aluminum-based catalyst |
| CN111424177A (en) * | 2020-05-14 | 2020-07-17 | 昆明寰世科技开发有限公司 | Method for enriching platinum group metals from spent automobile exhaust catalyst |
| EP3907305A4 (en) * | 2020-07-03 | 2022-05-04 | University Of Science And Technology Beijing | Method for designing slag type for capturing platinum group metal in waste catalyst by using iron |
| CN114703375A (en) * | 2022-03-04 | 2022-07-05 | 金川集团股份有限公司 | Method for removing impurities in high-iron-content noble metal alloy |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103184345A (en) | Method for removing iron and enriching platinum group metals from smelted iron trapping material | |
| CN106756084B (en) | Method for extracting noble metal by taking iron-based material as trapping agent | |
| Zhou et al. | Extraction and separation of copper and iron from copper smelting slag: A review | |
| CN102534226B (en) | Method for extracting precious metal from spent automobile catalyst by concentration smelting-wet separation process | |
| CN101509077B (en) | Method for extracting platinum, palladium, rhodium from automotive catalyst of ore phase reconstruction | |
| CN103397213B (en) | Method for decomposing and extracting Baotou rare earth ore through mixed alkali roasting process | |
| CN111575489B (en) | Method for pyrogenically treating waste automobile exhaust catalyst | |
| CN103898330B (en) | The method of the valuable metal such as comprehensive recovery of iron, aluminium, scandium, titanium, vanadium from red mud | |
| CN105543479B (en) | A kind of comprehensive recovering process of bismuth matte | |
| CN107299219B (en) | A kind of resource utilization method of electroplating sludge | |
| WO2012171481A1 (en) | Hydrometallurgical process for complete and comprehensive recovery with substantially no wastes and zero emissions | |
| CN111647754A (en) | Comprehensive utilization method of zinc-containing dust and sludge in steel plant | |
| CN106048251A (en) | Technological method for cleaning and efficiently treating arsenic matte | |
| CN103740945A (en) | Method for enriching and recycling cadmium from lead smelting system | |
| CN114058857A (en) | Method for recovering lead and manganese from electrolytic manganese anode slime | |
| CN113817921B (en) | Method for extracting valuable metals from stone coal vanadium ore | |
| Jia et al. | Recovery of zinc resources from secondary zinc oxide via composite ammonia leaching: Analysis of Zn leaching behavior | |
| Hu et al. | Efficient vanadium extraction from shale with high silicon content using a short flow process by roasting-water leaching: laboratory and industrial scale research | |
| CN114134330A (en) | Method for recovering cadmium from high-cadmium smoke dust | |
| CN104141044B (en) | A kind of method of nickel, cadmium purification and recover in solid dangerous waste | |
| CN113787085A (en) | Method for extracting Fe, Zn and Pb from electric furnace dust removal ash and realizing high-value utilization | |
| CN112095020A (en) | Method for recovering precious metal from waste catalyst | |
| CN113044815A (en) | Method and system for comprehensively treating selenium-tellurium-containing waste | |
| CN105523590A (en) | Method for preparing ferric chloride | |
| Li et al. | Preparation of ZnSO4· 7H2O and separation of zinc from blast furnace sludge by leaching-purification-crystallization 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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130703 |