CN106810069A - A kind of hydrometallurgy slag vitrifying formula and vitrifying harmless treatment process - Google Patents
A kind of hydrometallurgy slag vitrifying formula and vitrifying harmless treatment process Download PDFInfo
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- CN106810069A CN106810069A CN201611184686.XA CN201611184686A CN106810069A CN 106810069 A CN106810069 A CN 106810069A CN 201611184686 A CN201611184686 A CN 201611184686A CN 106810069 A CN106810069 A CN 106810069A
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/002—Use of waste materials, e.g. slags
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- General Chemical & Material Sciences (AREA)
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- Manufacture And Refinement Of Metals (AREA)
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Abstract
The invention discloses a kind of hydrometallurgy slag vitrifying formula and vitrifying harmless treatment process, comprise the following steps：(1) dehydration and preliminary desiccation are carried out to hydrometallurgy slag；Calcium mineral, siliceous mineral, mineral containing sodium and cullet are crushed and sieved respectively；(2) the hydrometallurgy slag and waste active carbon after at least one and preliminary desiccation in the calcium mineral after sieving, siliceous mineral, mineral containing sodium and cullet are mixed by proportioning, obtains mixture；(3) high-temperature calcination will be carried out after the secondary desiccation of gained mixture, obtains vitrified product.The present invention realizes the innoxious of hydrometallurgy slag by way of melten glass.The present invention, using hydrometallurgy slag, siliceous mineral, calcium mineral, mineral containing sodium, cullet and waste active carbon, the innoxious of hydrometallurgy slag is realized by vitrified mode from simple and easy to apply, universality angle.
Description
Technical field
The present invention relates to hydrometallurgy Slag treatment field, and in particular to a kind of hydrometallurgy slag vitrifying formula and vitrifying
Harmless treatment process.
Background technology
Substantial amounts of constantly to be produced containing metal waste with industrial expansion, reclaiming valuable metal therein has turned into development
Recycling economy, the important channel of exploitation " city mineral products ".Hydrometallurgy is commonly used because the efficiency of its extraction metal is higher, but
It extracts the hydrometallurgy slag left after metal and can not still be recycled directly as resource, and part wet metallurgical slag also has
There is certain hazard property.Conventional hydrometallurgy slag subsequent treatment disposing technique, main to include solidification, stabilize and water at present
Stall cooperative disposal, the place to go of the hydrometallurgy slag after solidification, stabilisation is usually hazardous waste landfill, but hazardous waste is filled out
Burying a limited volume can not continue to receive；Cement kiln synergic processing in order to ensure the quality of cement, to enter kiln material characteristic and
The amount of cooperative disposal waste has strict demand, and this causes that cement kiln synergic processing can not meet the need of hydrometallurgy slag disposal
Ask.
It would therefore be highly desirable to develop a kind of simple efficient, flexible hydrometallurgy Slag treatment disposing technique of applicable elements.《Country
Hazardous Waste List》" HW18 incineration disposal residue 772-004-18 hazardous wastes plasma, high-temperature fusion etc. were disposed for definition
Non-glass state material and flying dust that journey is produced " is hazardous waste, and the disposal process such as hazardous waste plasma, high-temperature fusion is produced
Glass state material be generally considered to be not belonging to hazardous waste.
The content of the invention
It is an object of the invention to solve the short slab in hydrometallurgy Slag treatment disposal process so that hydrometallurgy into
It is a kind of more reasonably handling process containing metal waste, and a kind of hydrometallurgy slag vitrifying butanedionedioxime is provided.
A kind of hydrometallurgy slag vitrifying formula, constitutes as follows by percentage to the quality：
It is further preferred that constituting by percentage to the quality as follows：
Still more preferably, constitute as follows by percentage to the quality：
The present invention also provides a kind of hydrometallurgy slag vitrifying harmless treatment process, comprises the following steps：
(1) dehydration and preliminary desiccation are carried out to hydrometallurgy slag；To calcium mineral, siliceous mineral, mineral containing sodium and useless glass
Glass is crushed and sieved respectively；
(2) by least one and preliminary desiccation in the calcium mineral after sieving, siliceous mineral, mineral containing sodium and cullet
Hydrometallurgy slag and waste active carbon afterwards is mixed by proportioning, obtains mixture；
(3) high-temperature calcination will be carried out after the secondary desiccation of gained mixture, obtains vitrified product.
Hydrometallurgy slag of the present invention is by the residue after hydrometallurgy metal containing metal waste.
It is described to be containing metal waste《National Hazard waste register》In surface treatment waste, incineration disposal residue, containing beryllium
Waste, waste containing chromium, cupric waste, waste containing zinc, arsenic-containing waste, waste containing selenium, waste containing cadmium, waste containing antimony, waste containing tellurium,
Mercurous waste, waste containing thallium, lead bearing waste, nickeliferous waste, baric waste, non-ferrous metal metallurgy waste, dead catalyst.
The hydrometallurgy is to enter in the acid medium aqueous solution, the alkaline medium aqueous solution, organic solvent containing metal waste
Row chemical treatment, extraction, the process for separating impurity, extracting metal and its compound.
The particle diameter of material is less than 0.5mm after sieving in step (1).
Preferably, the hydrometallurgy slag moisture content in step (1) after dehydration is less than 75%；Hydrometallurgy after preliminary desiccation
Slag moisture content is less than 20%.
Preferably, the mass percent of waste active carbon is 0.2~2.5% in the mixture of step (2), hydrometallurgy slag
Mass percent is 50%~95%, and remaining is at least one in calcium mineral, siliceous mineral, mineral containing sodium and cullet,
Total amount is 100%.Depending on calcium mineral, siliceous mineral, mineral containing sodium, the mass percent of cullet are according to actual conditions.
Further preferably, in the mixture of step (2) by percentage to the quality, constitute as follows：
It is further preferred that constituting by percentage to the quality as follows：
Still more preferably, in the mixture of step (2) by percentage to the quality, constitute as follows：
At the vitrifying obtained under above-mentioned optimization formula in product the mass percent of vitreum 85% or so.
Most preferably, in the mixture of step (2) by percentage to the quality, constitute as follows：
At the vitrifying obtained under above-mentioned optimization formula in product the mass percent of vitreum more than 95%.
The percentage by weight is basic to calculate with ash content；
It is further preferred that the calcium mineral is quick lime；The siliceous mineral is quartz sand；The mineral containing sodium are
Saltcake.Cullet is more preferably that waste product or vitreum content in Improving Glass Manufacturing Processes is not less than 85% meltingization and produces
Thing.
Preferably, the mixing water content of matter in step (3) after secondary desiccation is less than 10%；The temperature of high-temperature calcination is not less than
1200 DEG C, more preferably 1200~1400 DEG C.
Further optimization dehydration is quenched and filter-press dehydration, and preliminary desiccation and secondary desiccation utilization are calcined in waste gas
Waste heat realizes desiccation.
Preferably, the high-temperature calcination time is 1.5~5 hours.
It is further preferred that the high-temperature calcination is to be calcined 2~2.5 hours at 1200~1300 DEG C.
Waste active carbon plays reduction in calcination process, and the ionic state metal in hydrometallurgy slag is reduced further into
Elemental metals；All materials become fused mass, and a large amount of intermediate oxides and network generation oxide body are formed in fused mass, melt
Vitreum is formed after melting thing cooling.Calcining heat and calcination time determine by a large amount of practical explorations, in above-mentioned calcining heat and
The purpose of the present invention can be preferably realized under calcination time.
Vitreum content is not less than 85% in gained vitrified product of the invention, meets wanting for hydrometallurgy slag harmlessness
Ask.
Compared with prior art, the present invention has the advantages that：
The present invention realizes the innoxious of hydrometallurgy slag by way of melten glass.The present invention is from simple and easy to apply, general
The angle of adaptive is set out, using hydrometallurgy slag, siliceous mineral, calcium mineral, mineral containing sodium, cullet and waste active carbon,
The innoxious of hydrometallurgy slag is realized by vitrified mode.
Specific embodiment
Embodiment 1
Choose 3 kinds of slags of hydrometallurgy containing metal waste, respectively nickeliferous waste hydrometallurgy slag, cupric waste hydrometallurgy
Slag and the hydrometallurgy slag of waste containing zinc, it is that the mass percent for calculating basis is carried out to be described below with ash content.
Moisture content is 72.3% after nickeliferous waste hydrometallurgy slag mechanical dehydration, and moisture content is 17.5% after preliminary desiccation；
It is nickeliferous waste hydrometallurgy slag, waste active carbon after by preliminary desiccation and the quartz sand after broken, sieving, quick lime, saltcake, useless
Glass is mixed, and the content of waste active carbon is 1.0% in mixture, and the mass percent of rest materials is：86% Nickel-bearing Waste
Thing hydrometallurgy slag, 3% quartz sand, 4% quick lime, 1% saltcake, 5% cullet；The secondary desiccation of the mixture, secondary desiccation
The moisture content of mixture is 4.3% afterwards；Mixture after secondary desiccation calcines 2h under conditions of 1250~1300 DEG C.
Moisture content is 68.7% after cupric waste hydrometallurgy slag mechanical dehydration, and moisture content is 14.9% after preliminary desiccation；
By the quartz sand after the cupric waste hydrometallurgy slag after preliminary desiccation, waste active carbon and broken, sieving, quick lime, saltcake, useless
Glass is mixed, and the content of waste active carbon is 1.0% in mixture, and the mass percent of rest materials is：84% cupric gives up
Thing hydrometallurgy slag, 4% quartz sand, 6% quick lime, 1% saltcake, 4% cullet；The secondary desiccation of the mixture, secondary desiccation
The moisture content of mixture is 5.7% afterwards；Mixture after secondary desiccation calcines 2.5h under conditions of 1200~1250 DEG C.
Moisture content is 72.6% after the hydrometallurgy slag mechanical dehydration of waste containing zinc, and moisture content is 17.3% after preliminary desiccation；
By the quartz sand after the hydrometallurgy of waste containing the zinc slag after preliminary desiccation, waste active carbon and broken, sieving, quick lime, saltcake, useless
Glass is mixed, in mixture the content of waste active carbon be 1.0%, rest materials be 94% hydrometallurgy of waste containing zinc slag,
3% quartz sand, 2% quick lime, 0% saltcake, 0% cullet；The secondary desiccation of the mixture, mixture is aqueous after secondary desiccation
Rate is 4.9%；Mixture after secondary desiccation calcines 2h under conditions of 1250~1300 DEG C.
In nickeliferous waste hydrometallurgy slag, cupric waste hydrometallurgy slag and the hydrometallurgy slag vitrified product of waste containing zinc
Vitreum mass percent is respectively 88.6%, 95.8% and 93.3% (detection method is XRD).
The specific implementation case of patent of the present invention is the foregoing is only, but the technical characteristic of patent of the present invention is not limited to
This, any those skilled in the relevant art in the field of the invention, all cover of the invention special by the change or modification made
Among sharp scope.
Claims (10)
1. a kind of hydrometallurgy slag vitrifying is formulated, it is characterised in that constitute as follows by percentage to the quality：
2. the vitrifying of hydrometallurgy slag is formulated according to claim 1, it is characterised in that constitute by percentage to the quality such as
Under：
3. a kind of hydrometallurgy slag vitrifying harmless treatment process, it is characterised in that comprise the following steps：
(1) dehydration and preliminary desiccation are carried out to hydrometallurgy slag；To calcium mineral, siliceous mineral, mineral containing sodium and cullet point
Do not crushed and sieved；
(2) by after at least one and preliminary desiccation in the calcium mineral after sieving, siliceous mineral, mineral containing sodium and cullet
Hydrometallurgy slag and waste active carbon are mixed by proportioning, obtain mixture；
(3) high-temperature calcination will be carried out after the secondary desiccation of gained mixture, obtains vitrified product.
4. harmless treatment process according to claim 3, it is characterised in that the hydrometallurgy slag is logical containing metal waste
The residue crossed after wet method metal smelting.
5. hydrometallurgy slag vitrifying harmless treatment process according to claim 3, it is characterised in that taken off in step (1)
Hydrometallurgy slag moisture content after water is less than 75%；Hydrometallurgy slag moisture content after preliminary desiccation is less than 20%.
6. hydrometallurgy slag vitrifying harmless treatment process according to claim 3, it is characterised in that step (2) it is mixed
The mass percent of waste active carbon is 0.2~2.5% in compound, and the mass percent of hydrometallurgy slag is 50%~95%, its
The remaining at least one in calcium mineral, siliceous mineral, mineral containing sodium and cullet, total amount is 100%.
7. hydrometallurgy slag vitrifying harmless treatment process according to claim 6, it is characterised in that step (2) it is mixed
In compound by percentage to the quality, constitute as follows：
8. hydrometallurgy slag vitrifying harmless treatment process according to claim 6, it is characterised in that the calcium mineral
It is quick lime；The siliceous mineral is quartz sand；The mineral containing sodium are saltcake.
9. hydrometallurgy slag vitrifying harmless treatment process according to claim 3, it is characterised in that two in step (3)
Mixing water content of matter after secondary desiccation is less than 10%；The temperature of high-temperature calcination is not less than 1200 DEG C.
10. hydrometallurgy slag vitrifying harmless treatment process according to claim 3, it is characterised in that during high-temperature calcination
Between be 1.5~5 hours.
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| CN201611184686.XA CN106810069B (en) | 2016-12-20 | 2016-12-20 | Vitrification formula and vitrification harmless treatment process for wet smelting slag |
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| CN201611184686.XA CN106810069B (en) | 2016-12-20 | 2016-12-20 | Vitrification formula and vitrification harmless treatment process for wet smelting slag |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109622563A (en) * | 2018-12-17 | 2019-04-16 | 北京高能时代环境技术股份有限公司 | A method of arsenic-containing waste residue is carried out using flotation tailing vitrification solidifying |
| CN114275996A (en) * | 2021-12-29 | 2022-04-05 | 新中天环保股份有限公司 | Resourceful treatment method for incinerator slag |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105392739A (en) * | 2013-06-17 | 2016-03-09 | 住友金属矿山株式会社 | Hematite manufacturing method and hematite manufactured by same |
| CN105441683A (en) * | 2015-11-13 | 2016-03-30 | 湖南中大联合创新科技发展有限公司 | Comprehensive treatment method for mixed waste residues |
| CN105483387A (en) * | 2015-12-09 | 2016-04-13 | 中南大学 | Iron-containing metallurgical waste harmless treatment and valuable metal recycling method |
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- 2016-12-20 CN CN201611184686.XA patent/CN106810069B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105392739A (en) * | 2013-06-17 | 2016-03-09 | 住友金属矿山株式会社 | Hematite manufacturing method and hematite manufactured by same |
| CN105441683A (en) * | 2015-11-13 | 2016-03-30 | 湖南中大联合创新科技发展有限公司 | Comprehensive treatment method for mixed waste residues |
| CN105483387A (en) * | 2015-12-09 | 2016-04-13 | 中南大学 | Iron-containing metallurgical waste harmless treatment and valuable metal recycling method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109622563A (en) * | 2018-12-17 | 2019-04-16 | 北京高能时代环境技术股份有限公司 | A method of arsenic-containing waste residue is carried out using flotation tailing vitrification solidifying |
| CN114275996A (en) * | 2021-12-29 | 2022-04-05 | 新中天环保股份有限公司 | Resourceful treatment method for incinerator slag |
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