CN1206691A - Refinement technology for realgar ore smelting and equipment thereof - Google Patents
Refinement technology for realgar ore smelting and equipment thereof Download PDFInfo
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- CN1206691A CN1206691A CN 97108999 CN97108999A CN1206691A CN 1206691 A CN1206691 A CN 1206691A CN 97108999 CN97108999 CN 97108999 CN 97108999 A CN97108999 A CN 97108999A CN 1206691 A CN1206691 A CN 1206691A
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Abstract
The present invention discloses a purification process of arsenic disulfide ore by using vacuum smelting method. It is characterized by that under the condition of sealed vacuum environment; the natural arsenic disulfide ore is heated and smelted at high temp., and then the mineral vapour is fed into the condensation environment, reduced and condensed into the high-purity arsenic disulfide. The extraction rate of said invented smelting method and its product grade both can be up to above 90%, and its product quality is good. Said invention has no environmental pollution, and is favourable for environmental protection.
Description
Arsenic disulfide is smelted purifying technique and equipment belongs to the nonferrous smelting field.
Arsenic disulfide is one of medicinal mineral, stipulates that by pharmacopeia its pozzuolite content is more than 90%.And natural arsenic disulfide purity is not high, and general content is 15-30%, must purify as medicinal.As for purification techniques, also find no comparatively advanced method so far, be that employing local method among the people is smelted, and there are many defectives in the local method smelting: 1, extraction yield is too low, and casting yield is less than 8%, and 90% product of extraction is defective, the waste Mineral resources.2, local method is smelted 1 ton of ore, only produces 10-15 kilogram qualified product, deficiency in economic performance.3, processing unit is simple and crude, causes environmental pollution serious.
Purpose of the present invention: overcome above-mentioned defective, a kind of yield height, purity height are provided, meet the state-promulgated pharmacopoeia regulation, do not cause the arsenic disulfide of environmental pollution to smelt purifying technique and equipment.
Arsenic disulfide has following physics, chemical property: arsenic disulfide belongs to the low temperature hot liquid mineral deposit, becomes the ore deposit temperature below 500 ℃, 565 ℃ of its boiling points.The arsenic disulfide structure is arsenic and sulphur (molecular formula AsS), and it is easily oxidation at normal temperatures, in normal pressure and easily oxidation of high temperature (300-400 ℃), loses sulphur, combines with oxygen and generates As
2O
3, i.e. the arsenic of drugs.According to its physicochemical property, the present invention realizes by following approach: adopt vacuum smelting method to smelt.Its technical process is: natural arsenic disulfide → vacuum distilling → realgar steam → condensation reduction → product.
Slag (extracting useful metal in addition)
Concrete scheme is exactly ore to be put into airtight retort heating smelt, in the heating smelting process with vacuum pump constantly with retort in air take out, promptly under vacuum condition, smelt.By high temperature, ore becomes and steams liquid gas and enter in the airtight condenser and cool off, the reduction condensation and highly purified block arsenic disulfide.
The present invention has the following advantages and effect: 1, use this technology and smelt arsenic disulfide yield height, casting yield can reach more than 90%, 2, product structure was identical with natural crystal after smelting was purified, be block, but the composition of pozzuolite improves greatly, grade reaches more than 90%, and product colour is scarlet, and is better than natural ore deposit.3, ore smelting, condensation in the equipment of sealing, be reduced into arsenic disulfide, do not cause environmental pollution, no obnoxious flavour material endangers operator's health.4, this technology, equipment are simple, and safe and reliable; The less investment production cost is low, and is good in economic efficiency.
The explanation of accompanying drawing drawing: Fig. 1 is outer cooling tank sectional view, and Fig. 2 is retort, condenser sectional view.Describe the present invention below in detail:
1, key equipment manufacturing: steam in the accompanying drawing 2 and stay jar (1) to make the garden tubular with steel plate, tube one end in garden is shut, and establishes a shrinkage pool and stretch in the tube of garden as temperature detection shrinkage pool (8), during smelting the thermocouple temperature measurement device is inserted in the shrinkage pool (8).The garden tube the other end is made the jar mouth of bottleneck bottleneck shape, and a jar mouth is connected with flange (3), and retort (1) integral body resembles the bottle shape of garden cylindricality.Condenser (2) is also made the garden post tubbiness of sealing with steel plate, mouth and burn-on an identical flange same big with the retort mouth established in the middle and upper part, side.The top is provided with vacuum port (5) and the flange of burn-oning (4), external valve tube vacuum pump.The temperature detection shrinkage pool (8) identical with retort established at the middle part.Condenser inwall bottom is provided with cooling tube (6), and (6) one of cooling tubes are connected tap water.Load onto flange at the bottom of the condenser, tighten with sealing cover (7) screw rod and get final product.Accompanying drawing 1 outer cooling tank (9) is made with steel plate or other material, and barrel rim sets out the mouth of a river (10), and tap water is inserted in the bucket.Condenser (2) is outside the middle part is immersed in the cooling tank (10).
Two, technological operation
Pack into after being broken for natural realgar ore below the 10mm in the retort (1), electricity consumption Hu Lu sends into retort (1) and smelts in the burner hearth, retort mouth and condenser (2) side ports symmetry, can heat smelting after tightening with gasket and screw rod, in the heating smelting process, be connected on the vacuum pump place normally open on the condenser (2), constantly vacuumize, negative pressure of vacuum keeps being not less than 0.8Kg.Ore became steam and enters condenser (2) cooling and condense and be reduced to realgar when the temperature in the retort (1) reached 480-500 ℃.The interior temperature of condenser (2) is controlled at 300-200 ℃ and is advisable, and the air cooling of ore deposit steaming this moment liquid is coagulated the reductive realgar for block, and its color is scarlet than the redness in natural ore deposit; Be higher than 300 ℃ as temperature, the realgar color of condensation is a dark red, and easily oxidation becomes and contains deleterious product.The color that is lower than 200 ℃ of products is the yellowish red color meal.
Condenser (2) temperature controlling method: when the temperature in the condenser (2) does not reach 200 ℃, outer cooling tank (9) internal heating at condenser (2) heats up, perhaps open the smelting furnace gas blower, improve condenser (2) temperature by improving retort (1) temperature.When surpassing 300 ℃ in the condenser, cooling tank (9) adds the cold water cooling outside, closes smelting furnace gas blower, few coal cooling simultaneously.
When 480-500 ℃ of retort Nei Wenduda, keep again and can cease fire in 2-3 hour.Throw off the connecting screw rod of retort (1) jar mouthful and condenser (2), retort (1) is hung out the smelting furnace cooling take out slag (this slag contains useful metallic element, in addition extraction).The unsnap blind flange (7) of bottom of the valve tube of unsnaping once more and being attached thereto on condenser (2) top, the condenser of slinging (2) can take out product.
Smelting furnace can be worked continuously, and another retort that installs the ore deposit is put into smelting furnace, retort mouth and condenser side mouth is connected, and can carry out new smelting after connecting valve tube on the condenser top.
Claims (4)
1, arsenic disulfide is smelted purifying technique, it is characterized in that natural realgar ore is placed retort, adds thermal distillation under the near vacuum condition, and ore deposit steaming liquid gas enters condenser condenses and is reduced to realgar.
2, according to claim 1 technology, it is characterized in that distillation temperature is controlled at 480-500 ℃, negative pressure of vacuum is not less than 0.8Kg, and condensing temperature is controlled at 300-200 ℃.
3, be used for retort, condenser that arsenic disulfide smelt to purify and it is characterized in that retort is the closed container that is provided with a jar mouth, tank body is provided with the temperature detection shrinkage pool; Condenser is the tubbiness of sealing, and the side is provided with and the same big opening of retort mouth, and this opening and retort mouth are dismountable being tightly connected, and the top is provided with vacuum port, external valve tube vacuum pump, and cooling tube is arranged in the condenser, and the bottom is dismountable sealing cover; The outer middle and lower part of condenser is established outer cooling bucket in addition.
4, retort of the present invention, condenser also can be used for the smelting of arsenic trisulfide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97108999 CN1206691A (en) | 1997-07-25 | 1997-07-25 | Refinement technology for realgar ore smelting and equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97108999 CN1206691A (en) | 1997-07-25 | 1997-07-25 | Refinement technology for realgar ore smelting and equipment thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1206691A true CN1206691A (en) | 1999-02-03 |
Family
ID=5170827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97108999 Pending CN1206691A (en) | 1997-07-25 | 1997-07-25 | Refinement technology for realgar ore smelting and equipment thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1206691A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103290237A (en) * | 2013-05-23 | 2013-09-11 | 扬州高能新材料有限公司 | Arsenic lead alloy synthesis and sublimation integral furnace used for producing high-purity arsenic |
| CN103910383A (en) * | 2013-01-05 | 2014-07-09 | 伍以炳 | Technology and equipment for purification of realgar ore by sealed smelting |
| CN103922294A (en) * | 2014-04-05 | 2014-07-16 | 中南大学 | Methods for recovering arsenic sulfide and metallic arsenic from arsenic sulfide waste residues |
-
1997
- 1997-07-25 CN CN 97108999 patent/CN1206691A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103910383A (en) * | 2013-01-05 | 2014-07-09 | 伍以炳 | Technology and equipment for purification of realgar ore by sealed smelting |
| CN103290237A (en) * | 2013-05-23 | 2013-09-11 | 扬州高能新材料有限公司 | Arsenic lead alloy synthesis and sublimation integral furnace used for producing high-purity arsenic |
| CN103922294A (en) * | 2014-04-05 | 2014-07-16 | 中南大学 | Methods for recovering arsenic sulfide and metallic arsenic from arsenic sulfide waste residues |
| CN103922294B (en) * | 2014-04-05 | 2016-04-06 | 中南大学 | A kind of method reclaiming red arsenic and metallic arsenic from red arsenic waste residue |
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Addressee: Wu Yibing Document name: Deemed as a notice of withdrawal |
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