CN103643048A - Comprehensive utilization method of zinc slag - Google Patents
Comprehensive utilization method of zinc slag Download PDFInfo
- Publication number
- CN103643048A CN103643048A CN201310607483.7A CN201310607483A CN103643048A CN 103643048 A CN103643048 A CN 103643048A CN 201310607483 A CN201310607483 A CN 201310607483A CN 103643048 A CN103643048 A CN 103643048A
- Authority
- CN
- China
- Prior art keywords
- cadmia
- hermatic door
- oxide
- zinc
- interchanger
- 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.)
- Granted
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
Abstract
A comprehensive utilization method of zinc slag is characterized by comprising the following steps: fully mixing zinc slag with carbon powder according to a weight ratio of 100:(17 to 36) so as to obtain a zinc slag mixed material; placing the zinc slag mixed material in a high-temperature processing furnace to carry out a high-temperature treatment for 30 to 180 minutes in vacuum environment and at a temperature of 1200 to 1800 DEG C so as to make main components in the zinc slag such as magnesium oxide, ferric oxide, zinc oxide, silicon oxide and calcium oxide carry out reactions with carbon powder to convert the oxides into metal magnesium, metal iron, metal zinc, silicon carbide, and calcium carbide, and finally separating the obtained substances. The comprehensive utilization method is mainly used to process industrial zinc slag, reduces the production cost and pollution to the environment, is economic and environment-friendly, and converts zinc slag into products with a high additional value.
Description
Technical field
The present invention relates to a kind of cadmia method of comprehensive utilization, belong to chemical technique technical field.
Background technology
Cadmia is that the slag charge of discharging in zinc metallurgical process is again through extracting the waste after the rare metal in slag.China has few hundred thousand tonnes of cadmia waste discharge every year, and present stage is deposited in certain area to concentrate discharge to the treatment process of cadmia, causes the wasting of resources and environmental pollution.Current method is the construction cement that production added value is lower.
Summary of the invention
The object of this invention is to provide and a kind ofly can overcome above-mentioned defect, utilize Industry Waste rejected material, turn waste into wealth, the method for comprehensive utilization that disposable efficient solution cadmia resource recovery and cadmia pollute, its technical scheme is:
A cadmia method of comprehensive utilization, by weight for the ratio of 100:17 ~ 36 is fully mixed and made into cadmia compound, is placed in cadmia high temperature furnace inherence vacuum by cadmia compound by cadmia and carbon dust, 1200 ~ 1800 ℃, under the condition of 30 ~ 180 minutes, carry out pyroprocessing, make the magnesium oxide in cadmia, ferric oxide, zinc oxide, silicon oxide, the main components such as calcium oxide and carbon dust reaction generate respectively MAGNESIUM METAL, metallic iron, metallic zinc, silicon carbide, the materials such as calcium carbide, then that above-mentioned substance is separated, wherein, the chemical constitution of cadmia is magnesium oxide 3 ~ 8 wt %, ferric oxide 5 ~ 22wt%, zinc oxide 9 ~ 29 wt %, silicon oxide 5 ~ 12wt %, calcium oxide 15 ~ 24 wt %, loss on ignition 5 ~ 63wt %, cadmia high temperature furnace is by vacuum exhaust chamber (1), hermatic door one (2), waiting room one (3), hermatic door two (4), waiting room two (5), interchanger one (6), hermatic door three (7), pyroprocessing chamber (8), interchanger two (9), cooling sediment chamber one (10), interchanger three (11), cooling sediment chamber two (12), Vacuum exhaust tube (13), hermatic door four (14), waiting room three (15), interchanger four (16), hermatic door five (17), waiting room four (18), hermatic door six (19), discharge chamber (20) forms.
Described cadmia method of comprehensive utilization, cadmia compound pushes waiting room one (3) close encapsulation door one (2) by hermatic door one (2) by cadmia compound in vacuum exhaust chamber (1) after vacuum-treat, opening hermatic door two (4) pushes waiting room two (5) and closes hermatic door two (4), by hermatic door three (7), push pyroprocessing chamber (8) and close hermatic door three (7) again, cadmia compound carries out magnesium oxide here and reacts generation MAGNESIUM METAL with carbon dust, MAGNESIUM METAL forms magnesium steam and in cooling sediment chamber one (10), is deposited as solid metal magnesium by interchanger two (9) under high temperature action, and ferric oxide reacts generation metallic iron with carbon dust, zinc oxide reacts with carbon dust and generates metallic zinc, metallic zinc forms zinc fume by interchanger two (9) under high temperature action, cooling sediment chamber one (10) and interchanger three (11) are at cooling sediment chamber two (12) formation of deposits solid metal zinc, silicon oxide reacts Formed SiClx with carbon dust, calcium oxide reacts with carbon dust and generates calcium carbide, the waste gas CO that reaction generates is by interchanger two (9), cooling sediment chamber one (10), interchanger three (11), cooling sediment chamber two (12) and Vacuum exhaust tube (13) are discharged, until cadmia compound, react with carbon dust and open hermatic door four (14) after finishing reacting rear material is pushed to waiting room three (15) and closes hermatic door four (14), here reacting rear material is lowered the temperature by interchanger four (16), when temperature drops to below 200 ℃, opening hermatic door five (17) pushes waiting room four (18) and closes hermatic door five (17), opening hermatic door six (19) pushes reacting rear material discharge chamber (20) and closes hermatic door six (19).
Compared with prior art, its advantage is in the present invention:
1, method provided by the invention can be effectively, on a large scale industrial waste cadmia one step is converted into high value added product, its main products is MAGNESIUM METAL, metallic zinc, metallic iron, silicon carbide and calcium carbide etc.;
2, adopt during reactants separate magnetic separation that metallic iron is separated, then, the calcium carbide in the mixture of silicon carbide calcium carbide reacts generation calcium hydroxide and acetylene gas with water, acetylene gas is collected;
3, the calcium hydroxide proportion in the mixture of silicon carbide and calcium hydroxide is little, in water, punching choosing makes it separated with silicon carbide;
While 4, reclaiming metal vapors, can the metal vapor deposition of different vapour pressures be reached to separated object in different cooling sediment chambers by the temperature of accurate control interchanger and cooling sediment chamber;
5, the present invention be take industrial waste as main, and not only reduce production costs, and reduce environmental pollution, economic environmental protection, waste material changes the product that added value is higher into.
Accompanying drawing explanation
Fig. 1 is cadmia high temperature furnace structural representation used in the present invention;
In figure: 1, vacuum exhaust chamber, 2, hermatic door one, 3, waiting room one, 4, hermatic door two, 5, waiting room two, 6, interchanger one, 7, hermatic door three, 8, pyroprocessing chamber, 9, interchanger two, 10, cooling sediment chamber one, 11, interchanger three, 12, cooling sediment chamber two, 13, Vacuum exhaust tube, 14, hermatic door four, 15, waiting room three, 16, interchanger four, 17, hermatic door five, 18, waiting room four, 19, hermatic door six, 20, discharge chamber.
Embodiment
In the cadmia high temperature furnace shown in Fig. 1, cadmia compound pushes waiting room one (3) close encapsulation door one (2) by hermatic door one (2) by cadmia compound in vacuum exhaust chamber (1) after vacuum-treat, opening hermatic door two (4) pushes waiting room two (5) and closes hermatic door two (4), by hermatic door three (7), push pyroprocessing chamber (8) and close hermatic door three (7) again, cadmia compound carries out magnesium oxide here and reacts generation MAGNESIUM METAL with carbon dust, MAGNESIUM METAL forms magnesium steam and in cooling sediment chamber one (10), is deposited as solid metal magnesium by interchanger two (9) under high temperature action, and ferric oxide reacts generation metallic iron with carbon dust, zinc oxide reacts with carbon dust and generates metallic zinc, metallic zinc forms zinc fume by interchanger two (9) under high temperature action, cooling sediment chamber one (10) and interchanger three (11) are at cooling sediment chamber two (12) formation of deposits solid metal zinc, silicon oxide reacts Formed SiClx with carbon dust, calcium oxide reacts with carbon dust and generates calcium carbide, the waste gas CO that reaction generates is by interchanger two (9), cooling sediment chamber one (10), interchanger three (11), cooling sediment chamber two (12) and Vacuum exhaust tube (13) are discharged, until cadmia compound, react with carbon dust and open hermatic door four (14) after finishing reacting rear material is pushed to waiting room three (15) and closes hermatic door four (14), here reacting rear material is lowered the temperature by interchanger four (16), when temperature drops to below 200 ℃, opening hermatic door five (17) pushes waiting room four (18) and closes hermatic door five (17), opening hermatic door six (19) pushes reacting rear material discharge chamber (20) and closes hermatic door six (19).
Embodiment
embodiment 1
(1) batching: the chemical constitution of cadmia is magnesium oxide 3 wt %, ferric oxide 5wt%, zinc oxide 9 wt %, silicon oxide 5wt %, calcium oxide 15wt %, loss on ignition 63wt %, by cadmia and carbon dust by weight for the ratio of 100:17 is fully mixed and made into cadmia compound;
(2) cadmia compound is placed in cadmia high temperature furnace under vacuum, the condition of 1200 ℃, 30 minutes and carries out pyroprocessing, make the main components such as magnesium oxide in cadmia, ferric oxide, zinc oxide, silicon oxide, calcium oxide and carbon dust reaction generate respectively the materials such as MAGNESIUM METAL, metallic iron, metallic zinc, silicon carbide, calcium carbide, then that above-mentioned substance is separated.
embodiment 2
(1) batching: the chemical constitution of cadmia is magnesium oxide 6 wt %, ferric oxide 13wt%, zinc oxide 14wt %, silicon oxide 8wt %, calcium oxide 20wt %, loss on ignition 39wt %, by cadmia and carbon dust by weight for the ratio of 100:32 is fully mixed and made into cadmia compound;
(2) cadmia compound is placed in cadmia high temperature furnace under vacuum, the condition of 1500 ℃, 110 minutes and carries out pyroprocessing, make the main components such as magnesium oxide in cadmia, ferric oxide, zinc oxide, silicon oxide, calcium oxide and carbon dust reaction generate respectively the materials such as MAGNESIUM METAL, metallic iron, metallic zinc, silicon carbide, calcium carbide, then that above-mentioned substance is separated.
embodiment 3
(1) batching: the chemical constitution of cadmia is magnesium oxide 8 wt %, ferric oxide 22wt%, zinc oxide 29wt %, silicon oxide 12wt %, calcium oxide 24wt %, loss on ignition 5wt %, by cadmia and carbon dust by weight for the ratio of 100:36 is fully mixed and made into cadmia compound;
(2) cadmia compound is placed in cadmia high temperature furnace under vacuum, the condition of 1800 ℃, 180 minutes and carries out pyroprocessing, make the main components such as magnesium oxide in cadmia, ferric oxide, zinc oxide, silicon oxide, calcium oxide and carbon dust reaction generate respectively the materials such as MAGNESIUM METAL, metallic iron, metallic zinc, silicon carbide, calcium carbide, then that above-mentioned substance is separated.
Claims (2)
1. a cadmia method of comprehensive utilization, is characterized in that: cadmia and carbon dust, by weight for the ratio of 100:17 ~ 36 is fully mixed and made into cadmia compound, are placed in to cadmia high temperature furnace inherence vacuum by cadmia compound, 1200 ~ 1800 ℃, under the condition of 30 ~ 180 minutes, carry out pyroprocessing, make the magnesium oxide in cadmia, ferric oxide, zinc oxide, silicon oxide, the main components such as calcium oxide and carbon dust reaction generate respectively MAGNESIUM METAL, metallic iron, metallic zinc, silicon carbide, the materials such as calcium carbide, then that above-mentioned substance is separated, wherein, the chemical constitution of cadmia is magnesium oxide 3 ~ 8 wt %, ferric oxide 5 ~ 22wt%, zinc oxide 9 ~ 29 wt %, silicon oxide 5 ~ 12wt %, calcium oxide 15 ~ 24 wt %, loss on ignition 5 ~ 63wt %, cadmia high temperature furnace is by vacuum exhaust chamber (1), hermatic door one (2), waiting room one (3), hermatic door two (4), waiting room two (5), interchanger one (6), hermatic door three (7), pyroprocessing chamber (8), interchanger two (9), cooling sediment chamber one (10), interchanger three (11), cooling sediment chamber two (12), Vacuum exhaust tube (13), hermatic door four (14), waiting room three (15), interchanger four (16), hermatic door five (17), waiting room four (18), hermatic door six (19), discharge chamber (20) forms.
2. cadmia method of comprehensive utilization according to claim 1, it is characterized in that: cadmia compound pushes waiting room one (3) close encapsulation door one (2) by hermatic door one (2) by cadmia compound in vacuum exhaust chamber (1) after vacuum-treat, opening hermatic door two (4) pushes waiting room two (5) and closes hermatic door two (4), by hermatic door three (7), push pyroprocessing chamber (8) and close hermatic door three (7) again, cadmia compound carries out magnesium oxide here and reacts generation MAGNESIUM METAL with carbon dust, MAGNESIUM METAL forms magnesium steam and in cooling sediment chamber one (10), is deposited as solid metal magnesium by interchanger two (9) under high temperature action, and ferric oxide reacts generation metallic iron with carbon dust, zinc oxide reacts with carbon dust and generates metallic zinc, metallic zinc forms zinc fume by interchanger two (9) under high temperature action, cooling sediment chamber one (10) and interchanger three (11) are at cooling sediment chamber two (12) formation of deposits solid metal zinc, silicon oxide reacts Formed SiClx with carbon dust, calcium oxide reacts with carbon dust and generates calcium carbide, the waste gas CO that reaction generates is by interchanger two (9), cooling sediment chamber one (10), interchanger three (11), cooling sediment chamber two (12) and Vacuum exhaust tube (13) are discharged, until cadmia compound, react with carbon dust and open hermatic door four (14) after finishing reacting rear material is pushed to waiting room three (15) and closes hermatic door four (14), here reacting rear material is lowered the temperature by interchanger four (16), when temperature drops to below 200 ℃, opening hermatic door five (17) pushes waiting room four (18) and closes hermatic door five (17), opening hermatic door six (19) pushes reacting rear material discharge chamber (20) and closes hermatic door six (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310607483.7A CN103643048B (en) | 2013-11-27 | 2013-11-27 | Comprehensive utilization method of zinc slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310607483.7A CN103643048B (en) | 2013-11-27 | 2013-11-27 | Comprehensive utilization method of zinc slag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103643048A true CN103643048A (en) | 2014-03-19 |
| CN103643048B CN103643048B (en) | 2015-10-07 |
Family
ID=50248328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310607483.7A Expired - Fee Related CN103643048B (en) | 2013-11-27 | 2013-11-27 | Comprehensive utilization method of zinc slag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103643048B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107083491A (en) * | 2017-05-09 | 2017-08-22 | 安徽工业大学 | The technique that a kind of carbothermy produces magnesium metal and calcium carbide simultaneously |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57118023A (en) * | 1981-01-16 | 1982-07-22 | Shiro Sakuma | Manufacture of zinc oxide using zinc ash as starting material |
| HU198654B (en) * | 1984-11-08 | 1989-11-28 | Lajos Dombo | Process for producing zinc salts from zinc sludge and formed with inorganic carboxylic acid or with organic carboxylic acid having 1-4 carbon atoms |
| CN101092668A (en) * | 2006-06-23 | 2007-12-26 | 宝山钢铁股份有限公司 | Method for producing zinc alloy from zinc dross |
| CN101979686A (en) * | 2010-10-12 | 2011-02-23 | 广东工业大学 | Tin resource recycling method for tin oxide-containing waste |
-
2013
- 2013-11-27 CN CN201310607483.7A patent/CN103643048B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57118023A (en) * | 1981-01-16 | 1982-07-22 | Shiro Sakuma | Manufacture of zinc oxide using zinc ash as starting material |
| HU198654B (en) * | 1984-11-08 | 1989-11-28 | Lajos Dombo | Process for producing zinc salts from zinc sludge and formed with inorganic carboxylic acid or with organic carboxylic acid having 1-4 carbon atoms |
| CN101092668A (en) * | 2006-06-23 | 2007-12-26 | 宝山钢铁股份有限公司 | Method for producing zinc alloy from zinc dross |
| CN101979686A (en) * | 2010-10-12 | 2011-02-23 | 广东工业大学 | Tin resource recycling method for tin oxide-containing waste |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107083491A (en) * | 2017-05-09 | 2017-08-22 | 安徽工业大学 | The technique that a kind of carbothermy produces magnesium metal and calcium carbide simultaneously |
| CN107083491B (en) * | 2017-05-09 | 2018-11-27 | 安徽工业大学 | A kind of technique that carbothermy produces magnesium metal and calcium carbide simultaneously |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103643048B (en) | 2015-10-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Li et al. | Extraction of alumina from coal fly ash with sulfuric acid leaching method | |
| CN103667705B (en) | Boron mud Comprehensive utilization method | |
| CN102627305B (en) | Method using alkaline process to extract alumina in coal ash | |
| US20230067876A1 (en) | Method of pyrolysis for waste light-emitting electronic components and recovery for rare-earth element | |
| US9963761B2 (en) | Method and apparatus for secondary enrichment and recovery of germanium from low-grade lignite germanium concentrates with by microwave heating in vacuum | |
| CN103233125A (en) | Method for extracting tungsten, molybdenum and rhenium from waste high-temperature alloy | |
| CN104498734A (en) | Titanium recovery treatment method for titanium-bearing blast furnace slag based on vacuum carbothermal reduction | |
| CN103643042B (en) | Comprehensive utilization method of lead slag | |
| Li et al. | Extracting alumina from coal fly ash with ammonium sulfate sintering process | |
| CN113564363B (en) | Method for enriching and recovering chromium resource by synergistic utilization of chromium-containing sludge and chromium-containing waste residue | |
| CN103936048B (en) | A kind of recoverying and utilizing method of flyash acidity extraction aluminum oxide technology sewage | |
| CN103643048B (en) | Comprehensive utilization method of zinc slag | |
| CN101450843B (en) | Iron and aluminum complex ore comprehensive utilization method | |
| CN103643043B (en) | Nickel slag for comprehensive Application way | |
| CN101670353B (en) | Technology for removing sulfate radicals out of electrolytic manganese press filtration residues | |
| CN103183384B (en) | The method that a kind of preroast strengthening sub-molten salt decomposes chromite | |
| CN104059714A (en) | Method for preparing Fe2O3/Al2O3 oxygen carrier by taking ferrous metallurgy dust mud as main raw materials | |
| CN108516569A (en) | The method that lepidolite roasting prepares lithium sulfate solution | |
| CN105327926B (en) | A kind of method that calcium iron dioxygen carrier is prepared by raw material of converter slag | |
| CN209669313U (en) | The resource utilization processing system of Treatment of Metal Surface waste | |
| CN206418173U (en) | A kind of GaAs waste material separating and reclaiming device | |
| CN100528754C (en) | Carbon-adding chlorination method for extracting and separating boron and magnesium from boron enriched slag | |
| CN104118910A (en) | Method for selectively preparing vanadium oxides and recovering hydroxides through vanadate hydrogen reduction method | |
| CN104560099A (en) | Preparation technology for preparing fuel oil by utilizing waste rubber | |
| CN110527839A (en) | A method of utilizing rare earth metal in plasma recycling flying dust |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20161127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |