CN105349795A - Recycling method for low-concentration platinum waste liquid - Google Patents
Recycling method for low-concentration platinum waste liquid Download PDFInfo
- Publication number
- CN105349795A CN105349795A CN201510799894.XA CN201510799894A CN105349795A CN 105349795 A CN105349795 A CN 105349795A CN 201510799894 A CN201510799894 A CN 201510799894A CN 105349795 A CN105349795 A CN 105349795A
- Authority
- CN
- China
- Prior art keywords
- platinum
- waste liquid
- lower concentration
- sodium sulphite
- recovery method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B11/00—Obtaining noble metals
- C22B11/04—Obtaining noble metals by wet processes
- C22B11/042—Recovery of noble metals from waste materials
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a recycling method for low-concentration platinum waste liquid. The recycling method is characterized in that the pH value of the low-concentration platinum waste liquid is adjusted; then a precipitating agent is added slowly in a batched manner, heating is conducted, stirring is conducted for a period of time until platinum in the liquid completely precipitates, and after solid-liquid separation is carried out, hot deionized water is used for sufficient washing; and after platinum precipitates are roasted under a certain temperature, sponge platinum is obtained, and the recycling rate of platinum is larger than 99.5%. The recycling method is simple in technology, short in process and high in platinum recycling rate.
Description
Technical field
The present invention relates to a kind of recovery method of lower concentration platinum waste liquid, the recovery method of the lower concentration platinum waste liquid particularly produced from Platinum-based compounds production process.
Background technology
The a large amount of lower concentration platinum waste liquid produced in Platinum-based compounds production process, reclaims platinum and has significant economic benefit from waste liquid.In waste liquid, platinum exists with the Chloro complex form of platinum, at present, reclaims platinum and usually adopt reduction method, extraction process, ion exchange method, metal replacement method, absorption method etc. from waste liquid.Adopt and above-mentionedly from lower concentration waste liquid, reclaim platinum, there is technical process long, the problems such as metal recovery rate is low, and cost recovery is high, secondary environmental pollution, thus, exploitation is efficient, the method for the recovery lower concentration platinum waste liquid of environmental friendliness, high-recovery is very necessary.
Chinese patent ZL200610168469 discloses the reduction of a kind of employing hydrazine and from lower concentration platinum group element (0.01 ~ 4.0g/L) aqueous solution, reclaims platinum, the rate of recovery 70 ~ 97% of platinum.Chinese patent 201110389890.6 discloses a kind of method reclaiming platinum from organic alcohol waste liquor, and the organic alcohol waste liquor alkaline reagents of platiniferous is adjusted to alkalescence; With reduction reagent hydrazine hydrate, platinum ion is reduced to simple substance platinum again; Then through suction filtration, be separated with tail washings, clean after obtain simple substance platinum.Chinese patent 201410407286.5 discloses a kind of separation, reclaims the method for precious metal, the polymine of the waste liquid containing precious metal and thiocarbamide modification is reacted, the polymine of thiocarbamide modification optionally with gold, platinum, iridium, osmium, rhodium, ruthenium and palladium effect, be precipitated thing, and not with Action of Metal Ions such as silver, iron, copper, thus precious metal element is separated, by described throw out aftertreatment, obtain precious metal.
Summary of the invention
The object of the invention is the lower concentration platinum waste liquid for producing in Platinum-based compounds production process, a kind of method from lower concentration platinum devil liquor recovery platinum be provided, the method flow process is simple, the platinum rate of recovery is high, environmental friendliness.
The invention provides a kind of method from lower concentration platinum devil liquor recovery platinum, concrete steps comprise:
1. adjust lower concentration platinum waste liquid pH value, add precipitation agent, heating, stir, platinum is precipitated completely;
2., after being calcined at a certain temperature by described platinum throw out, spongy platinum is obtained.
Compared with prior art, the invention provides a kind of method of the lower concentration platinum devil liquor recovery platinum from the birth of Platinum-based compounds production process, lower concentration platinum waste liquid and sulfide are reacted, obtain platinum sulfide precipitation, after calcining, obtain spongy platinum.In Platinum-based compounds production process output waste liquid in substantially containing other precious metal ions and the base metal such as copper, the iron metal ion that easily form sulfide precipitation, therefore only have platinum to precipitate with the form of platinum sulfide.Present invention process flow process is simple, and the rate of recovery of platinum is high, is greater than 99.5%.In addition, by controlling the adding rate of solution ph and sulfide, hydrogen sulfide can not be produced; Subsequent calcination process tail gas, by absorbing, does not discharge SO
xgas, whole process environment is friendly.
Accompanying drawing explanation
Accompanying drawing is process flow diagram of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Embodiment 1, see accompanying drawing, gets the platinum waste liquid (concentration Pt0.4g/L) of 2L, and adjustment solution ph is 2, divides and slowly adds sodium sulphite 2 times, and heating is stirred; The amount adding sodium sulphite for 1st time is 0.5:1 by S:Pt elemental mole ratios, controls the add-on of sodium sulphite, guarantees that sodium sulphite has added in 1h; The amount adding sodium sulphite for 2nd time is 2:1 by S:Pt mol ratio, control the add-on of sodium sulphite, guarantee that sodium sulphite has added in 2h, platinum is precipitated completely, form platinum sulfide, solid-liquid separation, adopts hot deionized water wash 3 times, after drying, by it at 500 DEG C of temperature lower calcination 2h, after cooling, obtain spongy platinum, the rate of recovery of platinum is 99.7%.
Embodiment 2, see accompanying drawing, gets 2L platinum waste liquid (Pt0.3g/L), and adjustment solution ph is 3, divides and slowly adds hydrogen sulfide 2 times, and heating is stirred; The amount adding hydrogen sulfide for 1st time is 0.4:1 by S:Pt elemental mole ratios, controls the add-on of hydrogen sulfide, guarantees that hydrogen sulfide has added in 1h; The amount adding hydrogen sulfide for 2nd time is 2:1 by S:Pt mol ratio, control the add-on of hydrogen sulfide, guarantee that hydrogen sulfide has added in 2h, platinum is precipitated completely, form platinum sulfide, solid-liquid separation, adopts hot deionized water wash 3 times, after drying, by it at 500 DEG C of temperature lower calcination 2h, after cooling, obtain spongy platinum, the rate of recovery of platinum is 99.5%.
Embodiment 3, see accompanying drawing, gets 2L platinum waste liquid (Pt0.4g/L), and adjustment solution ph is 3, divides and slowly adds sodium sulphite 3 times, and heating is stirred; The amount adding sodium sulphite for 1st time is 0.5:1 by S:Pt elemental mole ratios, controls the add-on of sodium sulphite, guarantees that sodium sulphite has added in 1h; The amount adding sodium sulphite for 2nd time is 1:1 by S:Pt mol ratio, controls the add-on of sodium sulphite, guarantees that sodium sulphite has added in 1h, the amount adding sodium sulphite for 3rd time is 1:1 by S:Pt mol ratio, controls the add-on of sodium sulphite, guarantees that hydrogen sulfide has added in 1h, platinum is precipitated completely, forms platinum sulfide, solid-liquid separation, adopt hot deionized water wash 3 times, after drying, by it at 600 DEG C of temperature lower calcination 2h, after cooling, obtain spongy platinum, the rate of recovery of platinum is 99.7%.
Claims (7)
1. a recovery method for lower concentration platinum waste liquid, is characterized in that comprising following processing step:
1. adjust lower concentration platinum waste liquid pH value, add precipitation agent, heating, stir, platinum is precipitated completely;
2., after being calcined at a certain temperature by described platinum throw out, spongy platinum is obtained.
2. the recovery method of a kind of lower concentration platinum waste liquid according to claim 1, is characterized in that, the 1. described waste liquid of step is the lower concentration platinum waste liquid produced in Platinum-based compounds production process, and the concentration of platinum is 0.1 ~ 1g/L.
3. the recovery method of a kind of lower concentration platinum waste liquid according to claim 1, is characterized in that, the 1. described adjustment lower concentration platinum waste liquid pH value of step is 1 ~ 3.
4. the recovery method of a kind of lower concentration platinum waste liquid according to claim 1, is characterized in that, the 1. described precipitation agent of step is H
2s, Na
2s, K
2any one in S, its addition is element sulphur and platinum elemental mole ratios is 2 ~ 3, point adds for more than 2 times.
5. the recovery method of a kind of lower concentration platinum waste liquid according to claim 1, is characterized in that, the 1. described Heating temperature of step is room temperature ~ 80 DEG C.
6. the recovery method of a kind of lower concentration platinum waste liquid according to claim 1, is characterized in that, step 2. described calcining temperature is 300 ~ 600 DEG C, and the time is 2 ~ 4h.
7. a recovery method for lower concentration platinum waste liquid, is characterized in that comprising following processing step:
Get the platinum waste liquid that 2L concentration is Pt0.4g/L, adjustment solution ph is 2, divides and slowly adds sodium sulphite 2 times, and heating is stirred; The amount adding sodium sulphite for 1st time is 0.5:1 by S:Pt elemental mole ratios, controls the add-on of sodium sulphite, guarantees that sodium sulphite has added in 1h; The amount adding sodium sulphite for 2nd time is 2:1 by S:Pt mol ratio, control the add-on of sodium sulphite, guarantee that sodium sulphite has added in 2h, platinum is precipitated completely, form platinum sulfide, solid-liquid separation, adopts hot deionized water wash 3 times, after drying, by it at 500 DEG C of temperature lower calcination 2h, after cooling, obtain spongy platinum, the rate of recovery of platinum is 99.7%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510799894.XA CN105349795A (en) | 2015-11-19 | 2015-11-19 | Recycling method for low-concentration platinum waste liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510799894.XA CN105349795A (en) | 2015-11-19 | 2015-11-19 | Recycling method for low-concentration platinum waste liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105349795A true CN105349795A (en) | 2016-02-24 |
Family
ID=55325854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510799894.XA Pending CN105349795A (en) | 2015-11-19 | 2015-11-19 | Recycling method for low-concentration platinum waste liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105349795A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112813263A (en) * | 2020-12-09 | 2021-05-18 | 深圳市环保科技集团有限公司 | Treatment method of plating removal waste liquid of aqua regia system |
| CN113249590A (en) * | 2021-05-13 | 2021-08-13 | 中钢集团南京新材料研究院有限公司 | Method for efficiently recovering platinum group noble metal from platinum-containing organic alcohol waste liquid |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006113284A2 (en) * | 2005-04-13 | 2006-10-26 | Metals Recovery Technology Inc. | Process for recovering platinum group metals, rhenium and gold |
| CN101045962A (en) * | 2006-03-31 | 2007-10-03 | 日矿金属株式会社 | Method of reclaiming platinum from selenium-containing waste liquid using hydrazine |
| CN102443707A (en) * | 2011-11-30 | 2012-05-09 | 徐州浩通新材料科技股份有限公司 | Method for recycling platinum from organic alcohol waste liquor |
| CN104263936A (en) * | 2014-08-18 | 2015-01-07 | 中国科学院长春应用化学研究所 | Method for separating and recovering precious metals |
-
2015
- 2015-11-19 CN CN201510799894.XA patent/CN105349795A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006113284A2 (en) * | 2005-04-13 | 2006-10-26 | Metals Recovery Technology Inc. | Process for recovering platinum group metals, rhenium and gold |
| CN101045962A (en) * | 2006-03-31 | 2007-10-03 | 日矿金属株式会社 | Method of reclaiming platinum from selenium-containing waste liquid using hydrazine |
| CN102443707A (en) * | 2011-11-30 | 2012-05-09 | 徐州浩通新材料科技股份有限公司 | Method for recycling platinum from organic alcohol waste liquor |
| CN104263936A (en) * | 2014-08-18 | 2015-01-07 | 中国科学院长春应用化学研究所 | Method for separating and recovering precious metals |
Non-Patent Citations (1)
| Title |
|---|
| 郁纬军等: "沉淀法废催化剂中铂回收工艺的研究", 《青岛海洋大学学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112813263A (en) * | 2020-12-09 | 2021-05-18 | 深圳市环保科技集团有限公司 | Treatment method of plating removal waste liquid of aqua regia system |
| CN113249590A (en) * | 2021-05-13 | 2021-08-13 | 中钢集团南京新材料研究院有限公司 | Method for efficiently recovering platinum group noble metal from platinum-containing organic alcohol waste liquid |
| CN113249590B (en) * | 2021-05-13 | 2022-04-05 | 中钢集团南京新材料研究院有限公司 | Method for efficiently recovering platinum group noble metal from platinum-containing organic alcohol waste liquid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102491287B (en) | Process for separating and recovering selenium from selenium-containing material | |
| CN107058731B (en) | A kind of technique that platinum palladium product is produced as raw material using Pt Pd concentrate | |
| CN103290222B (en) | A kind of method that reclaims copper and mickel from electroplating sludge | |
| CN106480313A (en) | Method for recovering platinum from indissolvable silicon-aluminum-based platinum-containing waste catalyst | |
| CN103482680B (en) | A kind of technique of being produced nano zine oxide by secondary zinc oxide | |
| CN101619399A (en) | Method for selectively leaching voluble metal in copper refinery cinder | |
| CN104438287B (en) | The recycling processing method of a kind of arsenic sulfide waste residue and device thereof | |
| CN104889413A (en) | Method for preparing high purity platinum powder for electronic component | |
| CN110079676A (en) | A kind of zinc oxide fumes step extract technology rich in germanium | |
| CN105063361A (en) | Method for comprehensively recovering valuable metal from copper anode slime | |
| CN103397189A (en) | Method for recovering silver or other metals from silver-containing wastes | |
| CN106430312A (en) | Preparation method of monoclinic system tungsten trioxide | |
| CN110923462A (en) | Resourceful treatment method for white smoke | |
| CN102816931A (en) | Method for recovering copper and iron from copper-containing acid wastewater and producing gypsum | |
| CN105349795A (en) | Recycling method for low-concentration platinum waste liquid | |
| CN104862494B (en) | A kind of technique that gold is soaked in the gold mine from sulfide | |
| CN102583270B (en) | Method for extracting selenium from nickel-molybdenum ore smelting fume by catalytic oxidation leaching-control potential reduction | |
| CN104611542A (en) | Method for treating gold/silver/copper anode slime by medium-temperature chlorination process | |
| Biswal et al. | Influence of alternative alkali reagents on Fe removal during recovery of Mn as Electrolytic Manganese Dioxide (EMD) from Mn sludge | |
| CN106282569A (en) | A kind of copper-cadmium slag puies forward the method for cadmium residue resource reclaim | |
| CN103820809A (en) | Copper removal method | |
| CN109182764A (en) | A kind of soda acid joint clean method of Copper making flue dust synthetical recovery | |
| CN102965499A (en) | Method for extracting valuable element in arsenic salt purification slag from zinc hydrometallurgy | |
| CN102002597A (en) | Method for comprehensively recovering valuable metals from low-grade tellurium slag | |
| CN105983707B (en) | A method of high-purity rhenium powder is prepared from rhenium-containing high arsenic-and copper-bearing sulfide |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160224 |
|
| WD01 | Invention patent application deemed withdrawn after publication |