CN108754124A - A kind of low alkali sodium roasting technique of de-oiling decarbonization, desulfuration - Google Patents
A kind of low alkali sodium roasting technique of de-oiling decarbonization, desulfuration Download PDFInfo
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- CN108754124A CN108754124A CN201810927370.8A CN201810927370A CN108754124A CN 108754124 A CN108754124 A CN 108754124A CN 201810927370 A CN201810927370 A CN 201810927370A CN 108754124 A CN108754124 A CN 108754124A
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- oiling
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- decarbonization
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/02—Roasting processes
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/20—Obtaining niobium, tantalum or vanadium
- C22B34/22—Obtaining vanadium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/30—Obtaining chromium, molybdenum or tungsten
- C22B34/34—Obtaining molybdenum
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
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- 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
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Abstract
The invention discloses a kind of low alkali sodium roasting techniques of de-oiling decarbonization, desulfuration, include the following steps：Sulfur feedstock, oil-containing will be contained containing the low vanadium raw materials of low molybdenum, coke powder, put into rake blender containing the low vanadium raw materials of low molybdenum and alkali, placed 24 hours after puddling uniformly, obtain batch mixing A；Batch mixing A is added in rotary kiln type roaster and is roasted, roasting material B is obtained；Roasting material B is added in the leaching can equipped with leaching liquid and carries out leaching operation, leaching liquid C and phase analysis D is obtained after filtering, separation；The leaching liquid C of gained is purified after wet cleaning cleans, obtains final products；Phase analysis D is placed in moving bed dryer, is recycled after hot waste gas is dried.A kind of low alkali sodium roasting technique of de-oiling decarbonization, desulfuration proposed by the present invention, one step of roasting is completed, time saving and energy saving compared with the prior art, save equipment investment, it is effectively reduced personnel's input, reduces production cost, adequately achieves during feedstock processing fully recycling, minimizing, innoxious.
Description
Technical field
The present invention relates to roasting technique field more particularly to a kind of low alkali sodium roasting techniques of de-oiling decarbonization, desulfuration.
Background technology
With industrialized continuous development, roasting technique is more and more applied.Existing de-oiling decarbonization, desulfuration roasting
Firing technique, is added to lime stone, fluorite, silica, the auxiliary materials such as coke powder, sodium carbonate, and in roasting process, contained by raw material itself
Calorific value be unable to meet production the required all heats of technique, therefore, a large amount of natural gas need to be supplemented to maintain baked for producing
Lasting progress, result in put into production process it is very big；Existing de-oiling decarbonization, desulfuration roasting technique, the roasting that roasting is obtained
Imitation frosted glass carries out leaching operation, the phase analysis that roasting material is obtained after leaching, detaching, at the cured method of high-temperature fusion
Reason contains alloy high-temp melting isolation of purified technical process, this technical process needs expensive equipment investment, and greatly
Electric energy consumption；Moreover, existing de-oiling decarbonization, desulfuration roasting technique, complicated for operation, personnel's input amount is big, is produced into
This height, in production process, raw material conversion ratio is not high, and raw material causes the serious wasting of resources and environment is dirty using being not enough
Dye.As more and more rare and various countries' social enviroment protection tissue of social energy resources is to the increasingly heavier of people's living environment
Depending on existing de-oiling decarbonization, desulfuration roasting technique can no longer meet the needs currently produced, therefore, be badly in need of proposing a kind of new
Low input, non-harmful de-oiling decarbonization, desulfuration roasting technique.Based on the above issues, it is de- to propose a kind of de-oiling decarburization by the present invention
The low alkali sodium roasting technique of sulphur.
Invention content
The purpose of the present invention is to solve disadvantages present in existing de-oiling decarbonization, desulfuration roasting technique, and propose
A kind of low alkali sodium roasting technique of de-oiling decarbonization, desulfuration.Low one step of alkali sodium roasting of de-oiling decarbonization, desulfuration proposed by the present invention is complete
At, it is time saving and energy saving compared with the prior art, equipment investment is saved, personnel's input is effectively reduced, reduces production cost, it is fully real
Fully recycling, minimizing, innoxious is showed during feedstock processing.
A kind of low alkali sodium roasting technique of de-oiling decarbonization, desulfuration, includes the following steps：
Step S1, sulfur feedstock will be contained, oil-containing puts into rake containing the low vanadium raw materials of low molybdenum, coke powder, containing the low vanadium raw materials of low molybdenum and alkali
In formula blender, is placed 24 hours after puddling uniformly, obtain batch mixing A；
Step S2, step S1 batch mixings A is added in rotary kiln type roaster and is roasted, calcination temperature be 800~
1000 DEG C, obtain roasting material B；
Step S3, the roasting material B of gained in step S2 is added in the leaching can equipped with leaching liquid and carries out leaching operation,
Leaching liquid C and phase analysis D is obtained after filtering, separation；
Step S4, the leaching liquid C of gained in step S3 is purified after wet cleaning cleans, obtains final products；
Step S5, the phase analysis D of gained in step S3 is placed in moving bed dryer, profit is recycled after hot waste gas is dried
With.
Preferably, the addition of alkali is the 110% of theoretical value in the step S1.
Preferably, it in the roasting process in the step S2, when technological requirement is not achieved in combustible oil gas calorific value, needs to supplement
Natural gas.
Preferably, in the leaching operation in the step S3, soluble sodium molybdate, sodium vanadate enter leaching liquid.
Preferably, the final products in the step S4 are：Sodium molybdate, ammonium molybdate, molybdenum oxide, ammonium vanadate, five oxidations two
Vanadium.
Preferably, phase analysis D can be used as the high-alkali sodium roasting of de-oiling decarbonization, desulfuration after hot waste gas is dried in the step S5
Primary raw material.
A kind of low alkali sodium roasting technique of de-oiling decarbonization, desulfuration of the present invention, makes full use of the calorific value contained by raw material itself to expire
The sufficient required heat of production technology, raw material per ton can save 200m3~300m3Natural gas, the present invention no longer adopt drying phase analysis
With high-temperature fusion curing process, reduces alloy high-temp melting isolation of purified technical process, effectively save electric energy, original per ton
Material can save 1000 degree~1500 degree electricity of electric energy, and waste heat boiler is all used to recycle thermal energy, recycling heat in the utilization of fume afterheat
It can be quite；Reduce auxiliary material kind, reduce supplementary product consumption, the present invention does not use lime stone, fluorite and silica, coke powder, natural
Gas dosage is greatly decreased, raw material per ton save lime stone 150kg~200kg, fluorite 40kg~60kg, silica 50kg~80kg,
Coke powder 40kg~60kg, natural gas 200m3~300m3, raw material per ton can reduce solid waste discharge be no less than 174kg, can
It reduces carbon dioxide gas discharge and is no less than 605kg (150kg lime stone 66kg, 40kg coke powder 146kg, 200m3 natural gases
392kg), waste discharge total amount and carbon dioxide gas emissions are effectively reduced；De-oiling decarburization proposed by the present invention is de-
Low one step of alkali sodium roasting of sulphur is completed, time saving and energy saving compared with the prior art, saves equipment investment, is effectively reduced personnel's input,
Production cost is reduced, fully recycling, minimizing, innoxious is adequately achieved during feedstock processing.
Specific implementation mode
The present invention is made further to explain with reference to specific embodiment.
Embodiment
A kind of low alkali sodium roasting technique of de-oiling decarbonization, desulfuration proposed by the present invention, includes the following steps：
Batch mixing：Sulfur feedstock will be contained, oil-containing puts into rake containing the low vanadium raw materials of low molybdenum, coke powder, containing the low vanadium raw materials of low molybdenum and alkali
In blender, the addition of alkali is the 110% of theoretical value, is puddled uniform that batch mixing, placement use after 24 hours；
Roasting：Batch mixing is added in rotary kiln type roaster and is roasted, calcination temperature is 800~1000 DEG C, must be roasted
Imitation frosted glass, the sulphur in raw material can fully oxidized be sulfur dioxide, wherein 20%~30% Sulphur Dioxide is soluble sulphur
Sour sodium enters solid phase, and 70%~80% sulfur dioxide enters gas phase and is finally converted into calcium sulfate solid phase during fume treatment
It recycles, soluble sodium molybdate and sodium vanadate is converted into after the molybdenum vanadium in raw material is oxidized, combustible oil gas calorific value is not achieved
When technological requirement, supplemental natural gas is needed, to ensure calcination temperature, does not have to supplemental natural gas, raw material itself under normal production scenarios
Calorific value can reach the requirement of technique, the calorific value of raw material is fully used, and a step completes two technical process, saving of work and time
The energy is saved, the molybdenum vanadium in raw material is converted into 90% or more soluble object conversion ratio；
Leaching：Roasting material is added in the leaching can equipped with leaching liquid and carries out leaching operation, obtains leaching liquid and phase analysis, Gu
There is soluble sodium sulfate to enter leaching liquid in phase, increase the salt content of leaching liquid, reduces molybdenum vanadium concentration in leaching liquid, make leaching
Liquid product increases by 10%, and soluble sodium molybdate sodium vanadate enters in leaching liquid in roasting material, and extraction rate is up to 98% or more, raw material
In molybdenum vanadium overall conversion and extraction rate reach 98% or more；
Wet cleaning removal of impurities purification, production wastewater treatment：It is set using agitator tank and flame filter press and wastewater treatment
It is standby, leaching liquid is purified after wet cleaning cleans, production wastewater treatment, producing final products according to the product market demand is：
Sodium molybdate, ammonium molybdate, molybdenum oxide, ammonium vanadate, vanadic anhydride etc., 97% or more molybdenum vanadium comprehensive yield；
Phase analysis is dried：Phase analysis is placed in moving bed dryer, is recycled after hot waste gas is dried, it is de- to can be used as de-oiling
The primary raw material of the high-alkali sodium roasting of carbon desulfurization.
A kind of low alkali sodium roasting technique of de-oiling decarbonization, desulfuration of the present invention, makes full use of the calorific value contained by raw material itself to expire
The sufficient required heat of production technology, raw material per ton can save 200m3~300m3Natural gas, the present invention no longer adopt drying phase analysis
With high-temperature fusion curing process, reduces alloy high-temp melting isolation of purified technical process, effectively save electric energy, original per ton
Material can save 1000 degree~1500 degree electricity of electric energy, and waste heat boiler is all used to recycle thermal energy, recycling heat in the utilization of fume afterheat
It can be quite；Reduce auxiliary material kind, reduce supplementary product consumption, the present invention does not use lime stone, fluorite and silica, coke powder, natural
Gas dosage is greatly decreased, raw material per ton save lime stone 150kg~200kg, fluorite 40kg~60kg, silica 50kg~80kg,
Coke powder 40kg~60kg, natural gas 200m3~300m3, raw material per ton can reduce solid waste discharge be no less than 174kg, can
It reduces carbon dioxide gas discharge and is no less than 605kg (150kg lime stone 66kg, 40kg coke powder 146kg, 200m3 natural gases
392kg), waste discharge total amount and carbon dioxide gas emissions are effectively reduced；De-oiling decarburization proposed by the present invention is de-
Low one step of alkali sodium roasting of sulphur is completed, time saving and energy saving compared with the prior art, saves equipment investment, is effectively reduced personnel's input,
Production cost is reduced, fully recycling, minimizing, innoxious is adequately achieved during feedstock processing.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of low alkali sodium roasting technique of de-oiling decarbonization, desulfuration, which is characterized in that include the following steps：
Step S1, will contain sulfur feedstock, oil-containing containing the low vanadium raw materials of low molybdenum, coke powder, put into rake containing the low vanadium raw materials of low molybdenum and alkali and stir
It mixes in machine, is placed 24 hours after puddling uniformly, obtain batch mixing A；
Step S2, step S1 batch mixings A being added in rotary kiln type roaster and is roasted, calcination temperature is 800~1000 DEG C,
Obtain roasting material B；
Step S3, the roasting material B of gained in step S2 is added in the leaching can equipped with leaching liquid and carries out leaching operation, mistake
Leaching liquid C and phase analysis D is obtained after filter, separation；
Step S4, the leaching liquid C of gained in step S3 is purified after wet cleaning cleans, obtains final products；
Step S5, the phase analysis D of gained in step S3 is placed in moving bed dryer, is recycled after hot waste gas is dried.
2. a kind of low alkali sodium roasting technique of de-oiling decarbonization, desulfuration according to claim 1, which is characterized in that the step
The addition of alkali is the 110% of theoretical value in S1.
3. a kind of low alkali sodium roasting technique of de-oiling decarbonization, desulfuration according to claim 1, which is characterized in that the step
In roasting process in S2, when technological requirement is not achieved in combustible oil gas calorific value, supplemental natural gas is needed.
4. a kind of low alkali sodium roasting technique of de-oiling decarbonization, desulfuration according to claim 1, which is characterized in that the step
In leaching operation in S3, soluble sodium molybdate, sodium vanadate enter leaching liquid.
5. a kind of low alkali sodium roasting technique of de-oiling decarbonization, desulfuration according to claim 1, which is characterized in that the step
Final products in S4 are：Sodium molybdate, ammonium molybdate, molybdenum oxide, ammonium vanadate, vanadic anhydride.
6. a kind of low alkali sodium roasting technique of de-oiling decarbonization, desulfuration according to claim 1, which is characterized in that the step
Phase analysis D can be used as the primary raw material of the high-alkali sodium roasting of de-oiling decarbonization, desulfuration after hot waste gas is dried in S5.
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| CN201810927370.8A CN108754124A (en) | 2018-08-11 | 2018-08-11 | A kind of low alkali sodium roasting technique of de-oiling decarbonization, desulfuration |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115043433A (en) * | 2022-07-21 | 2022-09-13 | 河北欣芮再生资源利用有限公司 | Treatment process of oil-containing catalyst |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106521141A (en) * | 2016-11-06 | 2017-03-22 | 陈礼华 | Deoiling, decarbonizing and desulfuration low-alkaline sodium salt roasting process |
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- 2018-08-11 CN CN201810927370.8A patent/CN108754124A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106521141A (en) * | 2016-11-06 | 2017-03-22 | 陈礼华 | Deoiling, decarbonizing and desulfuration low-alkaline sodium salt roasting process |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115043433A (en) * | 2022-07-21 | 2022-09-13 | 河北欣芮再生资源利用有限公司 | Treatment process of oil-containing catalyst |
| CN115043433B (en) * | 2022-07-21 | 2024-05-14 | 河北欣芮再生资源利用有限公司 | Treatment process of oil-containing catalyst |
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