CN106241748A - A kind of method that Iron sulfuret. is oxidized to elemental sulfur and ferrum oxide - Google Patents
A kind of method that Iron sulfuret. is oxidized to elemental sulfur and ferrum oxide Download PDFInfo
- Publication number
- CN106241748A CN106241748A CN201610729547.4A CN201610729547A CN106241748A CN 106241748 A CN106241748 A CN 106241748A CN 201610729547 A CN201610729547 A CN 201610729547A CN 106241748 A CN106241748 A CN 106241748A
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- CN
- China
- Prior art keywords
- slurry
- iron sulfuret
- agitator
- flotation device
- elemental sulfur
- 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.)
- Pending
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 147
- 238000000034 method Methods 0.000 title claims abstract description 96
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 58
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 239000002002 slurry Substances 0.000 claims abstract description 67
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 57
- 230000003647 oxidation Effects 0.000 claims abstract description 39
- 230000001590 oxidative effect Effects 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000005188 flotation Methods 0.000 claims description 27
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 21
- 229910052760 oxygen Inorganic materials 0.000 claims description 21
- 239000001301 oxygen Substances 0.000 claims description 21
- 239000007789 gas Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 10
- 238000005363 electrowinning Methods 0.000 claims description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 8
- 238000003756 stirring Methods 0.000 description 5
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 238000005987 sulfurization reaction Methods 0.000 description 4
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009969 flowable effect Effects 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 238000004886 process control Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 241000973497 Siphonognathus argyrophanes Species 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009279 wet oxidation reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/02—Preparation of sulfur; Purification
- C01B17/06—Preparation of sulfur; Purification from non-gaseous sulfides or materials containing such sulfides, e.g. ores
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/02—Oxides; Hydroxides
- C01G49/06—Ferric oxide [Fe2O3]
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention provides a kind of method that Iron sulfuret. is oxidized to elemental sulfur and ferrum oxide.The method includes: adding water in Iron sulfuret., be made into slurry, in described slurry, the mass percent concentration of Iron sulfuret. is 1 79.9%；Described slurry is carried out oxidation processes, and oxidization time is 0.3 50h, and in oxidizing process being sufficiently stirred for slurry and controlling the temperature of slurry all the time is 60 99.9 DEG C；Obtain ferrum oxide and elemental sulfur.The advantage that the technical scheme that the present invention provides has low cost, the equipment that used is ripe, the problem solving difficult control of temperature in Iron sulfuret. oxidation process, and the equipment used disclosure satisfy that the time requirement needed for Iron sulfuret. oxidation, there is high practical value and economic worth.
Description
Technical field
The present invention relates to a kind of method that Iron sulfuret. is oxidized to elemental sulfur and ferrum oxide, belong to chemical industry metallurgical field.
Background technology
CN105084323A discloses " a kind of utilize troilite to manufacture sulfur and the System and method for of ferrum oxide ", Qi Zhongji
Having carried the method that Iron sulfuret. is oxidized to elemental sulfur and ferrum oxide, it is to use " roaster dry method " technique to enter Iron sulfuret.
Row oxidation.
Using above-mentioned " roaster dry method " technique, in oxidizing process, the control to temperature is the most difficult, and meets institute
The oxidization time difficulty needed is bigger.And Iron sulfuret. is oxidized in the technique of elemental sulfur and ferrum oxide, temperature and oxidization time
Control final Iron sulfuret. can be oxidized to the effect of elemental sulfur and ferrum oxide and produce considerable influence.
In Iron sulfuret. is oxidized to elemental sulfur and ferrum oxide technique, the most not yet goes out and be now able to effectively control oxidizing temperature
Meet the technical scheme of required oxidization time simultaneously.
Summary of the invention
For solving above-mentioned technical problem, it is an object of the invention to provide one and Iron sulfuret. is oxidized to elemental sulfur and oxygen
The method changing ferrum.The method can meet simultaneously Iron sulfuret. be oxidized in the technique of elemental sulfur and ferrum oxide to temperature control and
The requirement of the time of oxidation, it is possible to be effectively improved Iron sulfuret. and be oxidized to the technological effect of elemental sulfur and ferrum oxide.
For reaching above-mentioned purpose, the invention provides a kind of method that Iron sulfuret. is oxidized to elemental sulfur and ferrum oxide,
The method comprises the following steps:
Adding water in Iron sulfuret., be made into slurry, in described slurry, the mass percent concentration of Iron sulfuret. is
1-79.9%；
Described slurry is carried out oxidation processes, and oxidization time is 0.3-50h, in oxidizing process is sufficiently stirred for slurry
And the temperature controlling slurry all the time is 60-99.9 DEG C；Obtain ferrum oxide and elemental sulfur.
The mass percent concentration of Iron sulfuret. in slurry is controlled to be 1-79.9% by the present invention, and this concentration range can be true
The Iron sulfuret. slurry that guarantor makes, in a device can smooth flow when carrying out oxidation processes.
In the above-mentioned methods, it is preferable that when described slurry is carried out oxidation processes, the method also includes being passed through in slurry
Oxygen-containing gas, or slurry is carried out the step of Electrowinning oxygen.Described oxygen-containing gas can be air, oxygen rich air or pure oxygen
Gas, described oxygen rich air refers to the volume fraction air more than the average oxygen purity in air of oxygen.
In the above-mentioned methods, it is preferable that when described slurry is carried out oxidation processes, use agitator or flotation device as oxygen
Change processing means.
The present invention uses agitator or flotation device as oxidation furnaces, and this equipment can be to flowable Iron sulfuret. slurry
Carry out being sufficiently stirred for oxidation, and the temperature controlling slurry all the time is 60-99.9 DEG C；Additionally, for the agitator or floating of the present invention
Selecting machine can be the existing conventional equipment of this area, and other are similar to agitator or flotation device, and can play the sulfuration of phase same-action
Ferrous oxidation device can also be used for the present invention.
In the above-mentioned methods, it is preferable that described agitator or flotation device are external inflation formula or self-priming.Described outside is filled
Gas formula agitator or flotation device can be sent into gas by outside aerator makes ore pulp complete inflation and stirring；Described self-priming stir
Mix bucket or flotation device then oxygen-containing gas to be sucked by the rotation of impeller or revolution ore pulp makes ore pulp producing negative pressure
It is inflated and stirs.
In the above-mentioned methods, it is preferable that when using agitator or flotation device as oxidation treatment device, use single stirring
Bucket or flotation device；Or, at least two agitator or flotation device are carried out serial or parallel connection.
The present invention studies discovery, prior art CN105084323A (Application No. 201510587333.3, denomination of invention:
A kind of utilizing troilite to manufacture sulfur and the System and method for of ferrum oxide, the present invention is incorporated in this reference as a comparison) adopt
Aoxidizing with roaster dry process, the heat-transfering device used in oxidation reaction process predominantly moves heat pipe, in order to remove sulfur
Change the heat that ferrous iron produces, but this device radiation is inefficient, and the Iron sulfuret. material between radiating tube exists temperature
The problem of gradient, easily causes Iron sulfuret. material local because temperature is too high, is oxidized to sulfur dioxide, and due to sulfuration
Ferrous material is (water content in Iron sulfuret. is less than 20%) existed in solid form, can be further exacerbated by course of reaction
It is heated uneven problem, generates sulfur dioxide, thus affect the productivity of product elemental sulfur.The wet oxidation that the present invention then uses
Technique, wherein Iron sulfuret. mass percent concentration in the slurry is 1-79.9%, and this concentration range can make sulfuration sub-
The heat energy that ferrum material produces runs through aqueous medium and removes；Additionally, due to use agitator or flotation device, can in oxidizing process
Slurry is stirred inflation always, enables the oxidizing temperature of Iron sulfuret. material to remain the most even stable, energy simultaneously
Enough accurately control oxidizing condition, it is to avoid because temperature is too high, cause Iron sulfuret. to be oxidized to sulfur dioxide.
In the above-mentioned methods, it is preferable that in described slurry, the mass percent concentration of Iron sulfuret. is 65-75%.
In the above-mentioned methods, it is preferable that described oxidization time is 5-20h.
In the above-mentioned methods, it is preferable that the temperature controlling slurry in oxidizing process all the time is 70-98 DEG C.
In the above-mentioned methods, it is preferable that comprise the following steps when described slurry is carried out oxidation processes:
Slurry is placed in agitator or flotation device, in agitator or flotation device, is passed through oxygen-containing gas, or to stirring
Slurry in bucket or flotation device carries out Electrowinning oxygen；
Utilizing agitator or flotation device that slurry is stirred oxidation, the temperature controlling slurry in oxidizing process all the time is
60-99.9 DEG C, oxidization time is 0.3-50h.
Beneficial effects of the present invention:
1) compared with prior art " roaster dry method " technique, the technical scheme that the present invention provides uses wet method slurry
Technique, the problem solving difficult control of temperature in Iron sulfuret. oxidation process, the oxidation temperature of material in operating process
Degree can keep the most even stable all the time；
2) technical scheme that the present invention provides utilizes existing device (agitator, flotation device etc.) can realize the skill wanted
Art effect, significantly reduces the cost of equipment, is greatly improved practical value and economic worth.
3) use wet method slurry technique due to the present invention, the sudden strain of a muscle that Iron sulfuret. occurs in oxidizing process can be prevented effectively from
Quick-fried so that technology controlling and process is more safe and reliable.
Detailed description of the invention
In order to the technical characteristic of the present invention, purpose and beneficial effect are more clearly understood from, the existing skill to the present invention
Art scheme carries out described further below, but it is not intended that to the present invention can the restriction of practical range.
Embodiment 1
Present embodiments provide a kind of method that Iron sulfuret. is oxidized to elemental sulfur and ferrum oxide.The method includes following
Step:
Adding water in Iron sulfuret., be made into slurry, in slurry, the mass percent concentration of Iron sulfuret. is 65%；
Being sent in external inflation formula agitator by the slurry made and carry out oxidation processes, external inflation formula agitator is passed through
Gas can be air, oxygen rich air or purity oxygen；Oxidation processes peripheral inflated type agitator can constantly slurry
It is stirred and aerated, makes slurry fully oxidized；
All the time the temperature controlling slurry in oxidizing process is 70 DEG C, and control oxidization time is 10h；Finally give ferrum oxide and
Elemental sulfur.
Embodiment 2
Present embodiments provide a kind of method that Iron sulfuret. is oxidized to elemental sulfur and ferrum oxide.The method includes following
Step:
Adding water in Iron sulfuret., be made into slurry, in slurry, the mass percent concentration of Iron sulfuret. is
79.9%；
Being sent in self-priming agitator by the slurry made and carry out oxidation processes, oxygen-containing gas can be by impeller or revolution
The negative pressure produced that rotates enter in agitator, be fully contacted with slurry；
All the time the temperature controlling slurry in oxidizing process is 98 DEG C, and control oxidization time is 50h；Finally give ferrum oxide and
Elemental sulfur.
Embodiment 3
Present embodiments provide a kind of method that Iron sulfuret. is oxidized to elemental sulfur and ferrum oxide.The method includes following
Step:
Adding water in Iron sulfuret., be made into slurry, in slurry, the mass percent concentration of Iron sulfuret. is 75%；
The slurry made is sent in external inflation formula flotation device and carries out oxidation processes, oxidizing process controls slurry all the time
Temperature be 75 DEG C, control oxidization time is 30h；Finally give ferrum oxide and elemental sulfur.
Embodiment 4
Present embodiments provide a kind of method that Iron sulfuret. is oxidized to elemental sulfur and ferrum oxide.The method includes following
Step:
Adding water in Iron sulfuret., be made into slurry, in slurry, the mass percent concentration of Iron sulfuret. is 70%；
The slurry made is sent in self-suction type flotation machine and carries out oxidation processes, oxidizing process controls the temperature of slurry all the time
Degree is 85 DEG C, and control oxidization time is 35h；Finally give ferrum oxide and elemental sulfur.
Slurry made by Iron sulfuret. by embodiment of the present invention 1-4, can be stirred slurry filling in oxidizing process always
Gas, enables the oxidizing temperature of Iron sulfuret. material to remain the most even stable；Operation equipment use existing flotation device or
Agitator can meet the needs of the Iron sulfuret. oxidation of various treating capacity, and operation is convenient, and stable process conditions is controlled, greatly drops
The low requirement to equipment and the input of Financial cost.
Comparative example 1
This comparative example provides a kind of method using roaster that Iron sulfuret. is oxidized to elemental sulfur and ferrum oxide.The party
The same CN105084323A of operating procedure (Application No. 201510587333.3, the denomination of invention: one utilizes troilite manufacture of method
Sulfur and the System and method for of ferrum oxide, the present invention is incorporated in this reference as a comparison) in embodiment 2 record will sulfuration
Ferrous oxidation becomes elemental sulfur identical with the method for ferrum oxide, and its oxidation furnaces used is in CN105084323A embodiment 1
The oxidation furnaces recorded.
Specifically, the method comprises the following steps:
(addition of this water is the gross weight of the Iron sulfuret. after adding water to add the water of 1-20% in Iron sulfuret.
Meter), then delivered in oxidation furnace by the feed hopper of oxidation furnace；
Utilize blower fan and admission line to be passed through oxygen-containing gas in oxidation furnace, in pond, inject water, by the end of bursting tube
Mouth is immersed in below the water surface, it is ensured that oxidation furnace is when anti-raw sudden strain of a muscle is quick-fried, and furnace gas can be discharged smoothly, be made oxygen by heat-transfering device
The temperature changed in stove controls at 60-100 DEG C, and oxidization time is at more than 50h；Obtain ferrum oxide and elemental sulfur.
The heat-transfering device radiating efficiency that comparative example is used is relatively low, and owing to heat-transfering device is mainly made up of radiating tube,
Can there is the problem of thermograde in the Iron sulfuret. material between radiating tube, easily cause Iron sulfuret. thing in operation implementation process
Material local is because temperature is too high, and oxidation generates sulfur dioxide；Meanwhile, the Iron sulfuret. moisture content in comparative example is relatively low, nothing
Method exists with flowable slurry form, also easily increases the weight of uneven problem of being heated further in course of reaction.Additionally, it is right
Ratio uses roaster dry process, and oxidization time was more than 50 hours, and long oxidization time is higher to the requirement of equipment, economical
Put into bigger.
In sum, the advantage that the technical scheme that the present invention provides has low cost, the equipment that used is ripe, solve
The problem of the difficult control of temperature in Iron sulfuret. oxidation process, and the equipment used disclosure satisfy that Iron sulfuret. aoxidizes
Required time requirement, has high practical value and economic worth.
Claims (9)
1. the method that Iron sulfuret. is oxidized to elemental sulfur and ferrum oxide, the method comprises the following steps:
Adding water in Iron sulfuret., be made into slurry, in described slurry, the mass percent concentration of Iron sulfuret. is 1-
79.9%；
Described slurry is carried out oxidation processes, and oxidization time is 0.3-50h, is sufficiently stirred for slurry and begins in oxidizing process
The temperature controlling slurry eventually is 60-99.9 DEG C；Obtain ferrum oxide and elemental sulfur.
Method the most according to claim 1, wherein, when described slurry is carried out oxidation processes, the method also includes to slurry
Material is passed through oxygen-containing gas, or slurry is carried out the step of Electrowinning oxygen.
Method the most according to claim 1, wherein, when described slurry is carried out oxidation processes, uses agitator or flotation
Machine is as oxidation treatment device.
Method the most according to claim 3, wherein, described agitator or flotation device are external inflation formula or self-priming.
5. according to the method described in claim 3 or 4, wherein, when using agitator or flotation device as oxidation treatment device, adopt
With single agitator or flotation device；Or,
At least two agitator or flotation device are carried out serial or parallel connection.
Method the most according to claim 1, wherein, in described slurry, the mass percent concentration of Iron sulfuret. is 65-
75%.
7. according to the method described in any one of claim 1-6, wherein, described oxidization time is 5-20h.
8. the temperature according to the method described in any one of claim 1-7, wherein, controlling slurry in oxidizing process all the time is 70-
98℃。
9. according to the method described in any one of claim 1-8, wherein, include following step when described slurry is carried out oxidation processes
Rapid:
Slurry is placed in agitator or flotation device, in agitator or flotation device, is passed through oxygen-containing gas, or to agitator or
Slurry in flotation device carries out Electrowinning oxygen；
Utilizing agitator or flotation device that slurry is stirred oxidation, the temperature controlling slurry in oxidizing process all the time is 60-
99.9 DEG C, oxidization time is 0.3-50h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610729547.4A CN106241748A (en) | 2016-08-25 | 2016-08-25 | A kind of method that Iron sulfuret. is oxidized to elemental sulfur and ferrum oxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610729547.4A CN106241748A (en) | 2016-08-25 | 2016-08-25 | A kind of method that Iron sulfuret. is oxidized to elemental sulfur and ferrum oxide |
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| Publication Number | Publication Date |
|---|---|
| CN106241748A true CN106241748A (en) | 2016-12-21 |
Family
ID=57595507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610729547.4A Pending CN106241748A (en) | 2016-08-25 | 2016-08-25 | A kind of method that Iron sulfuret. is oxidized to elemental sulfur and ferrum oxide |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103539207A (en) * | 2013-11-08 | 2014-01-29 | 四川大学 | Preparation method of iron oxide red |
| CN105084323A (en) * | 2015-09-15 | 2015-11-25 | 刘慧南 | System and method for manufacturing sulfur and iron oxide by using pyrite |
| CN204917967U (en) * | 2015-09-15 | 2015-12-30 | 刘慧南 | System for utilize troilite to make sulphur and iron oxide |
-
2016
- 2016-08-25 CN CN201610729547.4A patent/CN106241748A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103539207A (en) * | 2013-11-08 | 2014-01-29 | 四川大学 | Preparation method of iron oxide red |
| CN105084323A (en) * | 2015-09-15 | 2015-11-25 | 刘慧南 | System and method for manufacturing sulfur and iron oxide by using pyrite |
| CN204917967U (en) * | 2015-09-15 | 2015-12-30 | 刘慧南 | System for utilize troilite to make sulphur and iron oxide |
Non-Patent Citations (2)
| Title |
|---|
| 李圭白等: "《锰化合物净水技术》", 31 August 2006, 北京：中国建筑工业出版社 * |
| 龚明光 编著: "《浮选技术问答》", 31 December 2012, 北京：冶金工业出版社 * |
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