CN103230660B - A kind of from the green smelting process containing dearsenization quick arsenic CHARACTERISTICS OF TAILINGS SAND - Google Patents
A kind of from the green smelting process containing dearsenization quick arsenic CHARACTERISTICS OF TAILINGS SAND Download PDFInfo
- Publication number
- CN103230660B CN103230660B CN201310123155.XA CN201310123155A CN103230660B CN 103230660 B CN103230660 B CN 103230660B CN 201310123155 A CN201310123155 A CN 201310123155A CN 103230660 B CN103230660 B CN 103230660B
- Authority
- CN
- China
- Prior art keywords
- arsenic
- tailings sand
- condenser system
- temperature
- microwave
- 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.)
- Expired - Fee Related
Links
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to a kind of method that microwave heating collects arsenic or arsenide containing arsenic CHARACTERISTICS OF TAILINGS SAND. It concretely comprises the following steps: CHARACTERISTICS OF TAILINGS SAND is put into airtight high temperature resistant nonmetallic vessel, it is placed in microwave cavity, be separately turned on according to the order of sequence recovery system, condenser system and microwave generator, when CHARACTERISTICS OF TAILINGS SAND temperature again heats up after 360 �� 130 DEG C stationary value occur, close microwave generator, it is down to less than 90 DEG C to temperature, close condenser system and recovery system, collect arsenic or arsenide. It is an advantage of the current invention that to achieve non-secondary pollution and quickly dearsenization operation, existing CHARACTERISTICS OF TAILINGS SAND arsenic removal is markedly improved by this method, compare the wet method dearsenicating method such as existing high-temperature fuel heated type CHARACTERISTICS OF TAILINGS SAND dearsenicating method or strong acid and strong base heating pressurization, this method arsenic removal time significantly shortens tens to hundred times, do not have the secondary pollutions such as arsenic to produce, the arsenide deviate from becomes useful product after being collected, the CHARACTERISTICS OF TAILINGS SAND of residual is become the available material polluted without arsenic after dearsenization poison, effectively will turn waste into wealth containing arsenic solid waste.
Description
Art
The present invention is a kind of quick dearsenization green smelting process of CHARACTERISTICS OF TAILINGS SAND, is the microwave arsenic removal method of the novel process CHARACTERISTICS OF TAILINGS SAND of environmental friendliness of non-secondary pollution low-consumption high-efficiency. Belong to solid waste detoxication technique field, relate to a kind of new technique of industrial solid castoff arsenic removal.
Background technology
Arsenic is commonly called as metalloid, and toxicity is extremely strong, and has carcinogenesis. It can pass through operation of nature and human activity entered environment. The annual arsenic entered in environment due to mankind's activity in the whole world is about 1,200,000 tons, and the arsenic that operation of nature is discharged in environment is about 2.2 ten thousand tons, and arsenic amount is adopted at least up to more than 1,390,000 tons by China, wherein Guangxi, Yunnan, that arsenic amount is adopted in Hunan is maximum. Adopting in smelting process at mining industry arsenic, the arsenic of 70% is abandoned and is stayed in mine tailing. The arsenic of mining activities release has passed through soil and food chain approach threatens health, and the southwest problem intensive particularly in mining activities is more prominent. China has more than 267 ten thousand people to suffer drinking water type and the impact of coal-burning height arsenic, is that endemic arsenic poisoning endangers one of the most serious country. The Treatment process of arsenic-containing waste water and waste residue has been become the focus that the whole world is studied. The process of arsenic-containing waste residue processes the arsenic trioxide of drying regime to the transformation firing method process that develops of arsenic gradually from " Gu arsenic " at present, it is difficult to guarantee good working environment. It is less costly that this method carries arsenic, and treating capacity is big, if but production process controls the bad secondary pollution very easily causing environment, replaced by pyrogenic process wet method multiple techniques gradually at present, and this method can improve the response rate of arsenic, can reduce again cost, reduces secondary pollution. Hydrometallurgic recovery arsenic and other valuable metals are the focuses of research at present, and hydrometallurgic recovery does not produce dust, can meet environmental requirement, has low energy consumption, of low pollution, efficiency advantages of higher, but flow process is complex, and processing cost is of a relatively high. While making full use of arsenic resource, should developing the developmental research containing new techniques such as the biological metallurgy of arsenic garbage, membrane separation technique and mechanical activation leching, it is achieved the comprehensive utilization of arsenic resource, new approach is opened up in the improvement polluted for arsenic.
Arsenic in CHARACTERISTICS OF TAILINGS SAND all exists with sulfarsenide form, and the toxicity of arsenic not only causes the CHARACTERISTICS OF TAILINGS SAND pollution to environment, affects a bottleneck difficult problem for CHARACTERISTICS OF TAILINGS SAND resource especially at present.Iron content, sulfur, water, sulfarsenide material etc. are had selective absorbing effect by microwave, utilize the collection to carrying out quickly again non-secondary pollution containing arsenic CHARACTERISTICS OF TAILINGS SAND of this absorption characteristic of microwave, various pyrogenic process or hydrometallurgy can be carried out after making CHARACTERISTICS OF TAILINGS SAND removing toxic substances, solve the crucial problem of arsenic-containing ores harmless resource utilization, provide a kind of green quickly dearsenization new method for arsenic-containing ores, the non-environmental-pollution Efficient Development containing arsenic mineral resources will be utilized and play huge impetus.
Summary of the invention
Present invention aims to existing solid waste and pollute the deficiency for the treatment of technology containing arsenic poison, it is provided that the novel process of environmental friendliness of a kind of non-secondary pollution low-consumption high-efficiency method containing arsenic CHARACTERISTICS OF TAILINGS SAND arsenic. Quickly removing of the method not only low-consumption high-efficiency is harmful to arsenide in CHARACTERISTICS OF TAILINGS SAND, arsenide is collected into useful arsenide, and use the method not produce secondary pollution, the method makes CHARACTERISTICS OF TAILINGS SAND class solid waste become the material having value, it provides a kind of new method administered containing noxious waste pollution.
In order to realize above-mentioned target, CHARACTERISTICS OF TAILINGS SAND is put into high temperature resistant nonmetallic vessel by the present invention, container is placed in microwave cavity, after sealing with sealing ring between container and container cover, close microwave generator, open air pump system, make normal-temperature water or wind enter in condenser system opening condenser system, open microwave generator and make microwave that CHARACTERISTICS OF TAILINGS SAND is carried out >=0.1w/cm2Radiation, along with CHARACTERISTICS OF TAILINGS SAND is heated, system temperature constantly rises, when temperature reading again heats up after stationary value occur in 360 �� 130 DEG C of scopes, in CHARACTERISTICS OF TAILINGS SAND, arsenic and arsenide have distilled substantially, now close microwave generator, to system temperature meter reading be down to below 90 DEG C time, turn off condenser system and air pump system, open discharging lid below condenser system, remove and collect arsenic or arsenide.
Existing CHARACTERISTICS OF TAILINGS SAND arsenic removal is markedly improved by this method, compare the wet method dearsenicating method such as existing high-temperature fuel heated type CHARACTERISTICS OF TAILINGS SAND dearsenicating method or strong acid and strong base heating pressurization, this method arsenic removal time significantly shortens tens to hundred times, do not have the secondary pollutions such as arsenic to produce, the arsenide deviate from becomes useful product after being collected, the CHARACTERISTICS OF TAILINGS SAND of residual is become the available material polluted without arsenic after dearsenization poison, effectively will turn waste into wealth containing arsenic solid waste.
The present invention is according to microwave action principle, and consider the existing Comprehensive Characteristics containing arsenic CHARACTERISTICS OF TAILINGS SAND, develop a kind of from containing the green quickly arsenic removing method arsenic CHARACTERISTICS OF TAILINGS SAND, it is achieved to the harmless resource utilization operation containing arsenic CHARACTERISTICS OF TAILINGS SAND, effectively solve current containing an arsenic CHARACTERISTICS OF TAILINGS SAND bottleneck difficult problem.
The present invention: a kind of have following characteristics from the green smelting process containing dearsenization quick arsenic CHARACTERISTICS OF TAILINGS SAND
1, described process system is to be made up of containing arsenic CHARACTERISTICS OF TAILINGS SAND, microwave generator, sealing is high temperature resistant nonmetallic vessel, flow guide system, condenser system, recovery system��100 purposes. Described method is that the CHARACTERISTICS OF TAILINGS SAND containing wave absorbing agent is put into high temperature resistant nonmetallic vessel, it is placed in microwave cavity, open recovery system, condenser system and microwave generator, when CHARACTERISTICS OF TAILINGS SAND temperature again heats up after one section of stationary value occur in 360 �� 130 DEG C of scopes, close microwave generator, it is down to less than 90 DEG C to temperature, close condenser system and recovery system, collect arsenic or arsenide.
2, equipment according to claim 1, it is characterised in that: described equipment is by forming vacuum state (reached vacuum is lower than 700mmHg) in recovery system or (institute's supplied gas is for gaseityArgonGas,HeliumGas,NeonGas, nitrogen, carbon dioxide or above-mentioned in the gas that forms of more than two kinds gas, reached pressure is more than 110KPa), its role is to make arsenic and arsenide in container be imported in condenser system, then reclaim.
3, described sealing is high temperature resistant, and nonmetallic vessel can be made up of the material such as high-temperature ceramics, high temp glass, and resistant to 600 DEG C of high temperature above, and container appearance has inorganic adiabator layer.
4, described condenser system can be water-cooled, the air-cooled or air-cooled combination type of water-cooled, but outlet temperature��90 DEG C of its condenser system.
5, described microwave generator power density >=(0.1w/cm to CHARACTERISTICS OF TAILINGS SAND2)��
6, described wave absorbing agent of inhaling refers to material or their compositionss such as sulfur-bearing, water, ferrum, manganese, and its wave absorbing agent amount is lower than CHARACTERISTICS OF TAILINGS SAND amount, and microwave is to before CHARACTERISTICS OF TAILINGS SAND heating, and wave absorbing agent need to be sufficiently mixed uniformly with CHARACTERISTICS OF TAILINGS SAND.
Accompanying drawing explanation
Accompanying drawing: specific embodiment of the invention apparatus structure schematic diagram
1, microwave generator
2, high temperature resistant nonmetallic vessel is sealed
3, flow guide system
4, condenser system
5, retracting device
Specific embodiments
Being described further below in conjunction with embodiment, following case study on implementation is intended to illustrate the present invention rather than limitation of the invention further.
Example 1, take Dachang, Guangxi cassiterite CHARACTERISTICS OF TAILINGS SAND (containing arsenic 2.6%, ferrum 19%) 2000G, granularity less than 150 purposes containing arsenic CHARACTERISTICS OF TAILINGS SAND (because of the wave absorbing agent such as iron content and not additional wave absorbing agent in sample), it is placed in outside tank with in the refractory ceramics tank of asbestos fibre cloth, ceramic cover with high temperature airway is covered at ceramic pot, and with asbestos fibre band by good to ceramic pot and lid gap sealing, close door for microwave oven, after opening water route switch and the vacuum pump of condenser system, when the vacuum of observation vacuum meter is to 550mmHg, open microwave power supply and be adjusted to 800W, observe ceramic cap upper end thermocouple thermometer reading, when within 9 minutes, seeing in temperature to 299 degree, rate of rise in temperature diminishes rapidly, after 13 minutes, temperature is accelerated again to rise, now close microwave power supply, see after 28 minutes that temperature reading drops to 53 degree, close vacuum pump switch and condensed water switch, dismantle condenser system upper end connecting screw, condenser system lower end is received with plastic tank, dismantle condenser system lower end connecting screw, brush to enter clearly in plastic tank by arsenic in condenser system tubulation and arsenide, take 50G to chemically examine, result arsenic content is 95.3%, arsenic weight 47.4G, the response rate is 90.1%.
Example 2, take coloured garden, Chenzhou CHARACTERISTICS OF TAILINGS SAND (containing arsenic 1.6%, ferrum 17.3%, manganese 2.2%) 3000G, granularity is less than 200 orders, because of the wave absorbing agent such as iron content and not additional wave absorbing agent in sample, it is placed in outside tank with in the refractory ceramics tank of asbestos fibre cloth, ceramic cover with high temperature airway is covered at high-temperature ceramics tank, and with asbestos fibre band good seal ceramic pot and lid, close door for microwave oven, after opening water route switch and the argon pumping system of condenser system, when observing manometric reading to 135KPa, open microwave power supply and be adjusted to 1000W, observe ceramic cap upper end thermocouple thermometer reading, when within 11 minutes, seeing in temperature to 317 degree, rate of rise in temperature diminishes rapidly, after 17 minutes, temperature is accelerated again to rise, now close microwave power supply, see after 32 minutes that temperature reading drops to 55 degree, close vacuum pump switch and condensed water switch, dismantle condenser system upper end connecting screw, condenser system lower end is received with plastic tank, dismantle condenser system lower end connecting screw, brush to enter clearly in plastic tank by arsenic in condenser system tubulation and arsenide, take 50G to chemically examine, result arsenic content is 91.6%, arsenic weight 43.5G, the response rate is 90.6%.
Example 3, by precious jade hilllock, Hunan celestial being CHARACTERISTICS OF TAILINGS SAND 50KG (containing arsenic 2.3%), sieve takes granularity and takes mine tailing less than 200 order breeze sieves, with 5KG granularity less than the iron oxide red of 200 orders fully grind even after, it is placed in outside groove with in the high-temperature ceramics groove of asbestos fibre cloth, high-temperature ceramics lid with high temperature conduit is placed on ceramic trough, ceramic trough and lid is sealed with asbestos fibre cloth, close door for microwave oven, open condenser system water route switch and argon pumping system switch, regulate argon pump pressure to water surface maintenance has continuous air bubbles in the bottle of condenser system lower end, open microwave power supply and be adjusted to 5000KW, when observing after 15 minutes on temperature reading to 326 degree, temperature rises and significantly reduces, after 25 minutes, temperature starts again to recover the rate of climb, now close microwave power supply, see after 41 minutes that temperature reading drops to 58 degree, close argon pumping system switch and condensed water switch, dismantle condenser system upper end connecting screw, condenser system lower end is received with plastic tank, dismantle condenser system lower end connecting screw, brush to enter clearly in plastic tank by arsenic in condenser system tubulation and arsenide, take 100G to chemically examine, result arsenic content is 92.2%, arsenic weight 1.03KG, the response rate is 89.6%.
Claims (6)
1. one kind from the green smelting process containing dearsenization quick arsenic CHARACTERISTICS OF TAILINGS SAND, it is characterised in that: described method is to be made up of containing arsenic CHARACTERISTICS OF TAILINGS SAND, microwave generator, sealing is high temperature resistant nonmetallic vessel, flow guide system, condenser system, recovery system��100 purposes; Described method is that the CHARACTERISTICS OF TAILINGS SAND containing wave absorbing agent is put into airtight high temperature resistant nonmetallic vessel, it is placed in microwave cavity, it is separately turned on recovery system, condenser system and microwave generator according to the order of sequence, when CHARACTERISTICS OF TAILINGS SAND temperature again heats up after one section of stationary value occur in 360 �� 130 DEG C of scopes, close microwave generator, it is down to less than 90 DEG C to temperature, closes condenser system and recovery system, collect arsenic or arsenide.
2. method according to claim 1, it is characterized in that: described recovery system can form vacuum state or for gaseity, the reached vacuum of vacuum state is lower than 700mmHg, for gaseity institute supplied gas be argon, helium, neon, nitrogen, carbon dioxide or above-mentioned in the gas that forms of more than two kinds gas, reached pressure is more than 110KPa, its role is to make arsenic and arsenide in container be imported in condenser system, then reclaim.
3. method according to claim 1, it is characterised in that: described airtight high temperature resistant nonmetallic vessel is made up of high-temperature ceramics, high temp glass material, and resistant to 600 DEG C of high temperature above, and container appearance has inorganic adiabator layer.
4. method according to claim 1, it is characterised in that: described condenser system is water-cooled, the air-cooled or air-cooled combination type of water-cooled, but outlet temperature��90 DEG C of its condenser system.
5. method according to claim 1, it is characterised in that: described microwave generator power density >=0.1w/cm to CHARACTERISTICS OF TAILINGS SAND2��
6. method according to claim 1, it is characterized in that: described wave absorbing agent refers to sulfur-bearing, water, ferrum, manganese material or their compositions, its wave absorbing agent amount is lower than CHARACTERISTICS OF TAILINGS SAND amount, and microwave is to before CHARACTERISTICS OF TAILINGS SAND heating, and wave absorbing agent need to be sufficiently mixed uniformly with CHARACTERISTICS OF TAILINGS SAND.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310123155.XA CN103230660B (en) | 2013-04-10 | 2013-04-10 | A kind of from the green smelting process containing dearsenization quick arsenic CHARACTERISTICS OF TAILINGS SAND |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310123155.XA CN103230660B (en) | 2013-04-10 | 2013-04-10 | A kind of from the green smelting process containing dearsenization quick arsenic CHARACTERISTICS OF TAILINGS SAND |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103230660A CN103230660A (en) | 2013-08-07 |
| CN103230660B true CN103230660B (en) | 2016-06-08 |
Family
ID=48878768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310123155.XA Expired - Fee Related CN103230660B (en) | 2013-04-10 | 2013-04-10 | A kind of from the green smelting process containing dearsenization quick arsenic CHARACTERISTICS OF TAILINGS SAND |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103230660B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103551378B (en) * | 2013-11-20 | 2015-06-24 | 华北电力大学 | Combined microwave oxidation compound repair system and method aiming at organic arsenic pollution in soil |
| CN111112307B (en) * | 2020-02-10 | 2021-02-09 | 长江师范学院 | Arsenic fixation method based on arsenic iron white matte |
| CN112629165A (en) * | 2020-12-22 | 2021-04-09 | 广东先导稀材股份有限公司 | Rapid drying method of arsenic sulfide slag |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1246259A2 (en) * | 2001-03-27 | 2002-10-02 | Agilent Technologies, Inc. (a Delaware corporation) | Short turn-off time photoconductive switch |
| CN1616611A (en) * | 2004-09-18 | 2005-05-18 | 太原理工大学 | Method for removing arsenic before burning coal |
| CN101225467A (en) * | 2008-02-25 | 2008-07-23 | 沈阳理工大学 | Method for pretreating refractory gold ore by employing microwave calcining |
| CN102181668A (en) * | 2011-03-02 | 2011-09-14 | 广西壮族自治区地质矿产测试研究中心 | Method for jointly extracting arsenic from high-arsenic manganese ore tailings |
-
2013
- 2013-04-10 CN CN201310123155.XA patent/CN103230660B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1246259A2 (en) * | 2001-03-27 | 2002-10-02 | Agilent Technologies, Inc. (a Delaware corporation) | Short turn-off time photoconductive switch |
| CN1616611A (en) * | 2004-09-18 | 2005-05-18 | 太原理工大学 | Method for removing arsenic before burning coal |
| CN101225467A (en) * | 2008-02-25 | 2008-07-23 | 沈阳理工大学 | Method for pretreating refractory gold ore by employing microwave calcining |
| CN102181668A (en) * | 2011-03-02 | 2011-09-14 | 广西壮族自治区地质矿产测试研究中心 | Method for jointly extracting arsenic from high-arsenic manganese ore tailings |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103230660A (en) | 2013-08-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107470327B (en) | Comprehensive recycling treatment system and method for electronic waste | |
| CN111020239B (en) | Method for recovering rare earth and energy substances from rare earth hyper-enrichment plants | |
| Bobicki et al. | Microwave heating of ultramafic nickel ores and mineralogical effects | |
| CN103230660B (en) | A kind of from the green smelting process containing dearsenization quick arsenic CHARACTERISTICS OF TAILINGS SAND | |
| CN107377598B (en) | Electronic waste recycling system | |
| CN101545120B (en) | Device for collecting and purifying anode scrap fluoride and fine dust in aluminum electrolysis workshop | |
| CN204348859U (en) | Vacuum device for preparing nano zinc powder by using waste zinc-manganese battery | |
| CN106229571A (en) | Batch reclaims the semi-enclosed electric discharge device of waste and old lithium ion battery | |
| CN102319723A (en) | The discarded printed circuit boards electronic devices and components are dismantled reclaimer automatically | |
| CN104962744A (en) | Method for harmlessly removing lead from waste CRT (cathode ray tube) cone glass and preparing glass micro-spheres | |
| CN106517318B (en) | A kind of method that utilization waste and old lead acid accumulator lead plaster prepares vulcanized lead superfine powder | |
| CN202141345U (en) | Tail gas recovering system for annealing furnace | |
| CN107400542B (en) | Nano graphite fluid for enhancing purification of coal bed gas | |
| CN205436569U (en) | Waste printed circuit board innocent treatment device | |
| CN106755962A (en) | A kind of method with recyclable domestic rubbish disposal tin-iron mine | |
| CN203963950U (en) | A kind of solid waste pyrolytic gasification treatment system | |
| CN102120565A (en) | Process and device for extracting sulfur from elemental sulfur slag | |
| CN103725878A (en) | Method for comprehensively utilizing residual tailings after extracting precious metals from acid pickling sludge | |
| CN203509048U (en) | Titanium powder production device capable of recycling and reusing hydrogen | |
| CN210916142U (en) | Useless processing apparatus of industry danger | |
| Li et al. | Dechlorination of zinc oxide dust from waelz kiln by microwave roasting | |
| CN204051046U (en) | A kind of cyclohexane oxidation off-gas recycle device | |
| CN107978815A (en) | The preprocess method of waste and old power battery | |
| CN103936009B (en) | A kind of thermal decomposition of silane produces the device and method of nano level high-purity silicon powder | |
| CN105463184A (en) | Mining pretreatment equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | 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 | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180928 Address after: 423000 building four, Taiwan Industrial Park, Bailu Tang Town, Suxian District, Chenzhou, Hunan. Patentee after: CHENZHOU HI-TECH CREATIVE INDUSTRIES INCUBATOR CO., LTD. Address before: 510275 No. 135 West Xingang Road, Guangdong, Guangzhou Patentee before: Sun Yat-sen University |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 Termination date: 20200410 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |