CN106702170B - A kind of method that high-arsenic antimony soot oxidation-fixation separates arsenic and recycles arsenic, antimony - Google Patents
A kind of method that high-arsenic antimony soot oxidation-fixation separates arsenic and recycles arsenic, antimony Download PDFInfo
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- CN106702170B CN106702170B CN201611163864.0A CN201611163864A CN106702170B CN 106702170 B CN106702170 B CN 106702170B CN 201611163864 A CN201611163864 A CN 201611163864A CN 106702170 B CN106702170 B CN 106702170B
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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
- C22B7/02—Working-up flue dust
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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
- C22B30/00—Obtaining antimony, arsenic or bismuth
- C22B30/02—Obtaining antimony
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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
- C22B30/00—Obtaining antimony, arsenic or bismuth
- C22B30/04—Obtaining arsenic
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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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- 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
Method fixation separation arsenic the present invention relates to a kind of high-arsenic antimony soot oxidation-and recycle arsenic, antimony belongs to resource comprehensive utilization utilization and environmental technology field.The method that the high-arsenic antimony soot oxidation-fixation separates arsenic and recycles arsenic, antimony, the specific steps of which are as follows: first by high-arsenic antimony flue dust, fixative Fe2O3It is uniformly mixed after grinding and sieve respectively, is that 250~450 DEG C of 30~150min of roasting obtain antimony product in temperature then in the case where being passed through oxygen gas condition, the volatile matter As generated in the process2O3It is recycled by sodium hydroxide and generates natrium arsenicum, realize As and Sb separation.The present invention makes full use of arsenic, sb oxide volatility and oxidisability different and and Fe2O3The difference of binding ability solves the problems, such as high-arsenic antimony flue dust As and Sb separation.
Description
Technical field
Method fixation separation arsenic the present invention relates to a kind of high-arsenic antimony soot oxidation-and recycle arsenic, antimony, it is comprehensive to belong to resource
Close recycling and environmental technology field.
Background technique
Arsenic is a kind of hypertoxic element, has caused global highest attention to the pollution of environment, has generally passed through arsenic
Fixed method handles arsenic-containing material, and on the one hand fixed arsenic occupies a large amount of storage space, while there is also latent to environment
Danger, on the other hand almost all of arsenic-containing material all contains the valuable metals such as a large amount of antimony, lead, increasingly deficient in resource
Today, the utilization of secondary resource has become the main flow direction of society, according to mining industry consulting firm of Britain 2010 annual report China
10 years or more antimony deposits can not developed continuously, US Geological Survey's statistical data is also shown, if following without again
It was found that important antimony deposit, world's antimonial resources will be exhausted within the more than ten years, find new antimony resource and carry out at recycling to it
Reason has own strategic significance, and China's antimony resource loss situation is serious simultaneously, and antimony resource flow vector is about in non-ferrous metal metallurgy technique
27% is accounted for, to realize that reasonable processing and the secondary recovery of antimony resource of arsenic resource utilize, it is necessary to realize that arsenic, antimony efficiently separate.
High-arsenic antimony flue dust handled by the present invention respectively may be about 36.28 and 28.72% containing arsenic, antimony, it is necessary to realize the efficient of arsenic antimony
Separation could reasonably handle arsenic and recycle commercially valuable antimony.
There are mainly two types of the methods of As and Sb flue dust separation:
First, pyrogenic process, basic ideas are by the arsenic in material with As2O3Form all evaporate, antimony is difficult with high price
Volatile form is retained in material, then the antimony in flue dust is further processed or is entered directly into antimony smelting process, reaches solid
The purpose of body feed separation and the recycling of valuable metal antimony.
Second, wet process, basic ideas are to pass through the objects such as control pH using heterogeneitys such as As, Sb compound water solubles
Physicochemical Conditions further recycle its product to realize the separation of arsenic, antimony.
The present invention is using oxidation, Fe2O3Fixation handles high-arsenic antimony flue dust, by the arsenic in flue dust with As2O3Shape
Formula volatilizes system, and is individually recycled to it, and antimony product is done further processing recycling.The method solves work
The problems such as skill long flow path, inferior separating effect.Therefore the implementation of this project, to the high-efficiency comprehensive utilization meaning weight of high-arsenic antimony flue dust
Greatly.
Summary of the invention
For the above-mentioned problems of the prior art and deficiency, the present invention provides a kind of high-arsenic antimony soot oxidation-fixation
Separation arsenic and the method for recycling arsenic, antimony.The present invention makes full use of arsenic, sb oxide volatility and oxidisability different and and Fe2O3
The difference of binding ability solves the problems, such as high-arsenic antimony flue dust As and Sb separation, and the invention is realized by the following technical scheme.
A kind of method that high-arsenic antimony soot oxidation-fixation separates arsenic and recycles arsenic, antimony, the specific steps of which are as follows: first
By high-arsenic antimony flue dust, fixative Fe2O3It is uniformly mixed after grinding and sieve respectively, then in the case where being passed through oxygen gas condition, in temperature
Degree is that 250~450 DEG C of 30~150min of roasting obtain antimony product, the volatile matter As generated in the process2O3By sodium hydroxide
Recycling generates natrium arsenicum, realizes As and Sb separation.
The fixative Fe2O3Additional amount is the 10~30% of high-arsenic antimony flue dust quality.
Oxygen accounts for the 21%~100% of oxygen volume of gas in the oxygen gas.
By above steps, high-arsenic antimony flue dust As and Sb separation is more thorough.Key reaction is as follows:
Sb2O3+0.5O2(g)=Sb2O4 ①
Sb2O3(g)+O2(g)+Fe2O3=2FeSbO4 ②
The beneficial effects of the present invention are:
(1) using high-arsenic antimony flue dust through air oxidation and Fe2O3Fixed method volatilization dearsenification, recycling antimony, oxidant use
Cheap air has certain advantage in industrial application；
(2) using high-arsenic antimony flue dust through air oxidation and Fe2O3Fixed method volatilization dearsenification, recycling antimony, relative to other
The oxidizing roasting good separating effect of pyrogenic process, simple relative to wet processing process, additive amount is few.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
With reference to the accompanying drawings and detailed description, the invention will be further described.
Embodiment 1
As shown in Figure 1, the method that the high-arsenic antimony soot oxidation-fixation separates arsenic and recycles arsenic, antimony, specific steps are such as
Under: first by high-arsenic antimony flue dust (36.28wt% containing arsenic, antimony 28.72wt%), fixative Fe2O3(granularity is equal for grinding and screening respectively
It is uniformly mixed (fixative Fe afterwards for 74um)2O3Additional amount is the 10% of high-arsenic antimony flue dust quality), be then being passed through flow
Under the conditions of the oxygen gas (oxygen accounts for the 21% of oxygen volume of gas, i.e. oxidizing gas is air) of 150mL/min, in temperature
Degree is that 450 DEG C of roasting 90min obtain antimony product, the volatile matter As generated in the process2O3It is recycled by sodium hydroxide and generates arsenic
Sour sodium realizes As and Sb separation.
After high-arsenic antimony flue dust low-temperature bake in above process, through analysis detection, the volatility 88% of arsenic, the volatilization of antimony
Rate 13%, high-arsenic antimony flue dust As and Sb separation are more thorough.
Embodiment 2
As shown in Figure 1, the method that the high-arsenic antimony soot oxidation-fixation separates arsenic and recycles arsenic, antimony, specific steps are such as
Under: first by high-arsenic antimony flue dust (36.28wt% containing arsenic, antimony 28.72wt%), fixative Fe2O3(granularity is equal for grinding and screening respectively
It is uniformly mixed (fixative Fe afterwards for 74um)2O3Additional amount is the 15% of high-arsenic antimony flue dust quality), be then being passed through flow
Under the conditions of the oxygen gas (oxygen accounts for the 21% of oxygen volume of gas, i.e. oxidizing gas is air) of 150mL/min, in temperature
Degree is that 400 DEG C of roasting 90min obtain antimony product, the volatile matter As generated in the process2O3It is recycled by sodium hydroxide and generates arsenic
Sour sodium realizes As and Sb separation.
After high-arsenic antimony flue dust low-temperature bake in above process, through analysis detection, the volatility 39% of arsenic, the volatilization of antimony
Rate 9%, high-arsenic antimony flue dust As and Sb separation are more thorough.
Embodiment 3
As shown in Figure 1, the method that the high-arsenic antimony soot oxidation-fixation separates arsenic and recycles arsenic, antimony, specific steps are such as
Under: first by high-arsenic antimony flue dust (36.28wt% containing arsenic, antimony 28.72wt%), fixative Fe2O3(granularity is equal for grinding and screening respectively
It is uniformly mixed (fixative Fe afterwards for 74um)2O3Additional amount is the 15% of high-arsenic antimony flue dust quality), be then being passed through flow
It is 400 DEG C of roastings in temperature under the conditions of the oxygen gas (oxygen accounts for the 100% of oxygen volume of gas, i.e. total oxygen) of 150mL/min
It burns 90min and obtains antimony product, the volatile matter As generated in the process2O3It is recycled by sodium hydroxide and generates natrium arsenicum, realized
As and Sb separation.
After high-arsenic antimony flue dust low-temperature bake in above process, through analysis detection, the volatility 75% of arsenic, the volatilization of antimony
Rate 9%, high-arsenic antimony flue dust As and Sb separation are more thorough.
Embodiment 4
As shown in Figure 1, the method that the high-arsenic antimony soot oxidation-fixation separates arsenic and recycles arsenic, antimony, specific steps are such as
Under: first by high-arsenic antimony flue dust (36.28wt% containing arsenic, antimony 28.72wt%), fixative Fe2O3(granularity is equal for grinding and screening respectively
It is uniformly mixed (fixative Fe afterwards for 74um)2O3Additional amount is the 30% of high-arsenic antimony flue dust quality), be then being passed through flow
It is 250 DEG C of roasting 150min in temperature under the conditions of the oxygen gas (oxygen account for oxygen volume of gas 30%) of 150mL/min
Antimony product is obtained, the volatile matter As generated in the process2O3It is recycled by sodium hydroxide and generates natrium arsenicum, realize arsenic, antimony point
From.
After high-arsenic antimony flue dust low-temperature bake in above process, through analysis detection, the volatility 41% of arsenic, the volatilization of antimony
Rate 6%, high-arsenic antimony flue dust As and Sb separation are more thorough.
Embodiment 5
As shown in Figure 1, the method that the high-arsenic antimony soot oxidation-fixation separates arsenic and recycles arsenic, antimony, specific steps are such as
Under: first by high-arsenic antimony flue dust (36.28wt% containing arsenic, antimony 28.72wt%), fixative Fe2O3(granularity is equal for grinding and screening respectively
It is uniformly mixed (fixative Fe afterwards for 74um)2O3Additional amount is the 25% of high-arsenic antimony flue dust quality), be then being passed through flow
It is that 300 DEG C of roasting 30min are obtained in temperature under the conditions of the oxygen gas (oxygen account for oxygen volume of gas 60%) of 150mL/min
To antimony product, the volatile matter As that generates in the process2O3It is recycled by sodium hydroxide and generates natrium arsenicum, realize As and Sb separation.
After high-arsenic antimony flue dust low-temperature bake in above process, through analysis detection, the volatility 35% of arsenic, the volatilization of antimony
Rate 5%, high-arsenic antimony flue dust As and Sb separation are more thorough.
In conjunction with attached drawing, the embodiment of the present invention is explained in detail above, but the present invention is not limited to above-mentioned
Embodiment within the knowledge of a person skilled in the art can also be before not departing from present inventive concept
Put that various changes can be made.
Claims (2)
1. the method that a kind of high-arsenic antimony soot oxidation-fixation separates arsenic and recycles arsenic, antimony, it is characterised in that specific steps are such as
Under: first by high-arsenic antimony flue dust, fixative Fe2O3It is uniformly mixed after grinding and sieve respectively, is then being passed through oxygen gas condition
Under, it is that 250~450 DEG C of 30~150min of roasting obtain antimony product in temperature, the volatile matter As generated in the process2O3By
Sodium hydroxide recycling generates natrium arsenicum, realizes As and Sb separation；
Oxygen accounts for the 30%~100% of oxygen volume of gas in the oxygen gas.
2. the method that high-arsenic antimony soot oxidation according to claim 1-fixation separates arsenic and recycles arsenic, antimony, feature
It is: the fixative Fe2O3Additional amount is the 10~30% of high-arsenic antimony flue dust quality.
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| CN108640390B (en) * | 2018-05-31 | 2021-10-22 | 阳谷祥光铜业有限公司 | Treatment method of antimony-containing wastewater |
| CN109762996A (en) * | 2019-03-07 | 2019-05-17 | 昆明理工大学 | A kind of method that high-antimony low arsenic soot oxidation-vulcanization fixation separates arsenic and recycles antimony |
| CN113930628B (en) * | 2021-09-03 | 2023-04-07 | 湖南有色金属研究院有限责任公司 | Comprehensive recovery method of arsenic-antimony smoke |
| CN113955799A (en) * | 2021-10-20 | 2022-01-21 | 山东恒邦冶炼股份有限公司 | Method for purifying antimony-containing arsenic trioxide |
| CN114086002A (en) * | 2021-11-24 | 2022-02-25 | 云南锡业研究院有限公司 | Method for efficiently separating arsenic and antimony from high-arsenic smoke dust |
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| CN101649396B (en) * | 2009-07-31 | 2011-03-16 | 湖南有色金属研究院 | Methods of removing F and Cl in secondary zinc oxide dust effectively and producing electrolytic zinc |
| CN103602834B (en) * | 2013-11-07 | 2014-09-03 | 昆明理工大学 | Selective oxidation-reduction method for recycling arsenic and antimony from arsenic-antimony smoke |
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