CN104120285A - Pyrogenic process mercury-antimony separation - Google Patents
Pyrogenic process mercury-antimony separation Download PDFInfo
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- CN104120285A CN104120285A CN201310153174.7A CN201310153174A CN104120285A CN 104120285 A CN104120285 A CN 104120285A CN 201310153174 A CN201310153174 A CN 201310153174A CN 104120285 A CN104120285 A CN 104120285A
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- mercury
- antimony
- recovery
- separation
- degrees celsius
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Abstract
The invention particularly relates to a mercury-antimony smelting separation process. According to the process, on the basis of ' environmental-friendly smelting separation method and device of mercury-antimony complex ores', a separation process is further improved, the pollution is reduced, the recovery cost is reduced, the interdependent content of a product and the recovery rate is improved. According to the technical scheme, the mercury-antimony smelting separation process comprises the following steps of: adding a combustion-supporting agent in the process of heating mercury-antimony complex ore powder at a high temperature by using a blast furnace to increase temperature to 1200-1400 DEG C to obtain antimony trioxide and mercury vapor; efficiently recovering antimony by reacting the antimony trioxide with coal by using a reflecting furnace and then introducing into a certain quantity of surface cooling chambers, wherein the recovery rate is more than 97.5%; then cooling the mercury vapor to 30-40 DEG C through an improved circulating cooling device. According to the mercury-antimony smelting separation process, the recovery rate of mercury is more than 98.5%, and interdependent substances are not generated in mercury and antimony.
Description
Technical field
The present invention relates to technique of preparing field, be specifically related to mercury antimony and smelt separating technology.
Background technology
Mercury antimony complex ore as a kind of Huge value, and be extensively present in Shaanxi, Guizhou and other regional Mineral resources, belonging to complicated, difficult ore dressing produces, simultaneously because mercurous discharge belongs to high pollution, if can not reclaim, to environment be produced to huge pollution, therefore its dressing and smelting process and comprehensive utilization are paid close attention to widely all the time.
The China national patent of invention of now having applied for comprises following three methods: the Hg-Sb separation method of mercury antimony complex ore, Hg-Sb floatation separation method for Hg-Sb symbiotic sulfide ore, mercury antimony floatation separation process.First method is to adopt flotation process to carry out flotation separation to mercury antimony complex ore, obtain mercury concentrate and mercurous antimony concentrate, mercury concentrate is reclaimed to mercury metal with pyrogenic attack, to the hydrometallurgy processing of mercurous antimony concentrate, add mineral acid selectively leaching antimony with chlorizating agent, draw containing antimony immersion liquid and the mercurous slag that soaks, can extract stibium trioxide containing antimony immersion liquid through reduction, hydrolysis, neutralization etc., the mercurous slag that soaks turns back to flotation separation program after sulphur removal.Second method is also a kind of method for floating, comprises the following steps successively: raw ore → muck → grind grading → bulk flotation → collective concentrate reagent removal → selectivity inhibition → separating flotation → essence mine dehydration.Bulk flotation operating process comprises that one roughing, recleaning and secondary scan, and separating flotation operating process comprises one roughing, triple cleaning and once purging selection.The third method is also to carry out flotation separation, and its special character is that collective concentrate liquid is carried out, in the step of flotation separation, adding gac in adding potassium bichromate, and the add-on of gac is 200～600g/t.
Above-mentioned three kinds of methods are substantially all to adopt method for floating, just in the operation of flotation, there is certain difference, the result that the method separates is mainly first to isolate antimony concentrate and mercury antimony concentrate, process separation to above-mentioned two kinds again, but because flotation process just may exist certain mutual thing that contains in essence, cause separating completely, particularly on antimony concentrate, there is certain density mercury, if antimony concentrate adopts common antimony working method will produce larger environmental pollution and larger Mineral resources waste.
I am devoted for years to the research of smelting isolation technique in mercury antimony, and obtained the achievement in research of comparative maturity, overcome the sepn process complexity that exists in separating technology, produced newly and the defect such as pollute, the high and rate of recovery of the mutual content of cost recovery product high, that separate is low.Declared national inventing patent in 2008 with " a kind of mercury antimony complex ore of environmental protection is smelted separation method and device ", and pass and approve.In declaring national inventing patent, new to some extent discovery again in production practice, is reducing cost recovery, improves the rate of recovery and also has the possibility breaking through.
Summary of the invention
The object of the invention is on the basis of existing technology, improve separating technology, reduce the mutual content that pollutes, reduces cost recovery, reduces product, improve the rate of recovery.
Technical scheme of the present invention is: on the basis of " a kind of mercury antimony complex ore mercury antimony of environmental protection is smelted separation method and device ", will add a kind of novel ignition dope in the process of mercury antimony complex ore heat with blast furnace, make temperature in stove be increased to 1200 ~ 1400 degrees Celsius, following chemical reaction: 2Sb will occur
2s
3+ 3O
2=2Sb
2o
3+ 3SO
2, HgS+O
2=Hg+SO
2.Carrying out after above-mentioned reaction, because can making the resultant of above-mentioned chemical reaction, the wind-force of gas blower enters cloth bag chamber by the table cold house being connected by pipeline of some amount, then reclaim and isolate antimonous oxide by cloth bag, and mercury vapour and sulfurous gas continue to enter by the breather line being led by induced draft fan to be immersed in the cooling duct being contained in pond, carry out circulating cooling to 10 ~ 40 degrees Celsius, cooling rear mercury becomes liquid, flow into retrieving arrangement by pipeline and can isolate mercury, antimonous oxide can carry out heat by reverberatory furnace, by following chemical reaction: 2Sb
2o
3+ 3C=4Sb+3CO
2.After above-mentioned reaction, antimony is separated carrying out.
The device that uses mercury antimony complex ore Hg-Sb separation method to design is tested three kinds of samples, mercurous antimony concentrate after a kind of flotation separation, grade is containing 43% antimony and 1% mercury, one is mercury antimony complex ore powder, grade is containing 40% antimony and 6% mercury, be the mercury concentrate containing antimony, grade is containing 20% antimony and 50% mercury.Above-mentioned three kinds of samples are tested, the rate of recovery of mercury is all higher than 98%, the rate of recovery of antimony is higher than 96%, higher than the rate of recovery of existing Hg-Sb separation device, and make traditional Hg-Sb separation technique be simplified to a device by multiple devices, and in the process of smelting antimony near-zero cost recovery mercury and not producing mutually containing thing.Concrete recovery test effect is as shown in the table:
| Sample name | The grade of original antimony | The grade of original mercury | The rate of recovery of antimony | The rate of recovery of mercury |
| Antimony concentrate after flotation | 43% | 1% | 98.3% | 98.53% |
| Containing the mercury concentrate of antimony | 20% | 50% | 97.5% | 99.26% |
| Mercury antimony complex ore powder | 40% | 6% | 97.8% | 98.65% |
Claims (5)
1. pyrogenic process Hg-Sb separation is characterized in that: utilizing mercury is at high temperature gas, is the physical property of liquid under normal temperature, mixes ore deposit by heat, and the method for first utilizing antimony to smelt recovery reclaims antimony, then by cooling method, mercury is cooled to liquid state and reclaims.
2. pyrogenic process Hg-Sb separation device, is characterized in that: comprise complex ore high-temperature heating equipment, antimony retrieving arrangement, mercury refrigerating unit, mercury retrieving arrangement.
3. the mercury antimony complex ore mercury antimony as described in right 2 is smelted tripping device, it is characterized in that: the retrieving arrangement that adds mercury on the blow-off line after the recovery antimony of complex ore.
4. the refrigerating unit of the mercury as described in right 2 is characterized in that: this refrigerating unit is the steel pipe of many rows distortion and the common refrigerating unit forming of cooling pool that water is housed, and number of tubes is more, and the rate of recovery of mercury is higher.
5. the separation method as described in right 1, is characterized in that: the temperature of heat is 1200 degrees Celsius to 1400 degrees Celsius, and cooling temperature is 10 degrees Celsius to 40 degrees Celsius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310153174.7A CN104120285A (en) | 2013-04-28 | 2013-04-28 | Pyrogenic process mercury-antimony separation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310153174.7A CN104120285A (en) | 2013-04-28 | 2013-04-28 | Pyrogenic process mercury-antimony separation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104120285A true CN104120285A (en) | 2014-10-29 |
Family
ID=51765915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310153174.7A Pending CN104120285A (en) | 2013-04-28 | 2013-04-28 | Pyrogenic process mercury-antimony separation |
Country Status (1)
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| CN (1) | CN104120285A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104894381A (en) * | 2015-05-22 | 2015-09-09 | 铜陵有色设计研究院 | Method for recycling mercury from copper smelting lead filter cake |
| CN104988339A (en) * | 2015-08-17 | 2015-10-21 | 湖南久泰冶金科技有限公司 | Zero-emission mercury metal preparing method |
| CN108085495A (en) * | 2017-12-05 | 2018-05-29 | 贵州重力科技环保有限公司 | A kind of method that oxygen-enriched air smelting efficiently separates recycling antimony mercury |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101643860A (en) * | 2008-08-04 | 2010-02-10 | 刘善安 | Environment-friendly method and environment-friendly device for mercury-antimony separation for mercury-antimony composite ore |
-
2013
- 2013-04-28 CN CN201310153174.7A patent/CN104120285A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101643860A (en) * | 2008-08-04 | 2010-02-10 | 刘善安 | Environment-friendly method and environment-friendly device for mercury-antimony separation for mercury-antimony composite ore |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104894381A (en) * | 2015-05-22 | 2015-09-09 | 铜陵有色设计研究院 | Method for recycling mercury from copper smelting lead filter cake |
| CN104988339A (en) * | 2015-08-17 | 2015-10-21 | 湖南久泰冶金科技有限公司 | Zero-emission mercury metal preparing method |
| CN108085495A (en) * | 2017-12-05 | 2018-05-29 | 贵州重力科技环保有限公司 | A kind of method that oxygen-enriched air smelting efficiently separates recycling antimony mercury |
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Application publication date: 20141029 |