CN1598014A - Process for innocuous treatment and recovering alumina of aluminium phosphide fumigated slag - Google Patents
Process for innocuous treatment and recovering alumina of aluminium phosphide fumigated slag Download PDFInfo
- Publication number
- CN1598014A CN1598014A CNA2004100203163A CN200410020316A CN1598014A CN 1598014 A CN1598014 A CN 1598014A CN A2004100203163 A CNA2004100203163 A CN A2004100203163A CN 200410020316 A CN200410020316 A CN 200410020316A CN 1598014 A CN1598014 A CN 1598014A
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- Prior art keywords
- residues
- stirring
- harmless treatment
- residue
- gas
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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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- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
This invention dscloses a method of harmless treatment of AlP fumigating residues and recovery of Al2O3, which belongs to the harmless treatment and reutilization technology of AlP fumigating residues. The method includes mixing the AlP fumigating powdery residues and excessive water together in the container, collecting gas PH3 after stirring, and waiting until the reaction doesn't release PH3 , then stop heating and stirring; through filtrating the reaction solution, the filtrate can be circulatingly used, and after drying ,smashing and roasting the filtrating solid, then obtaining Al2O3. The advantage of this invention lies in the low consumption of raw materials and energy sources in the entire process of residues' harmless treatment; without secondary pollution at the time of getting rid of residues toxicity.
Description
Technical field
The present invention relates to a kind of harmless treatment of aluminum phosphide fumigation residue and reclaim method of alumina, belong to harmless treatment of aluminum phosphide fumigation residue and reutilization technology.
Background technology
In traditional phosphine fumigation insecticidal technology, the circular tablet that compacting under high pressure forms after mixing with sustained release additives such as aluminium phosphide pulvis and paraffin, Magnesium Stearate, ammonium carbamates is a raw material, phosphine gas takes place carry out fumigant insect killing.Poisonous residue after stifling is because difficult treatment adopts underground method of burying to handle usually.
Two patented technologies of " CN:00200474.7 " that the applicant obtained and " CN:00200473.9 ", effectively solved the pulvis problem of aluminum phosphide fumigation raw material, and then for the harmless treatment of aluminum phosphide fumigation residue and reclaim aluminum oxide and created favourable condition.
Summary of the invention
The object of the present invention is to provide a kind of harmless treatment of aluminum phosphide fumigation residue and reclaim method of alumina, this procedure is simple, good economy performance, has not only realized the innoxious of residue, has also realized the utilization again of resource simultaneously.
The present invention is the harmless treatment of a kind of aluminum phosphide fumigation residue of being realized by following technical proposals and reclaims method of alumina.Its technical characterictic comprises following technological process: in container with aluminum phosphide fumigation powder residue with after 20 ℃～60 ℃ excessive water mixes, carry out mechanical stirring or feed N
2Or CO
2Gas stirring is collected PH
3Gas; Question response no longer discharges PH
3Behind the gas, stop heating and stirring; Filtering reacting solution, filtrate cycle use, and filter cake is through 80 ℃～120 ℃ common dryings or vacuum-drying 2～12h, pulverizing, and then obtain aluminum oxide through 400 ℃～1300 ℃ roasting 1～5h.
The invention has the advantages that whole residue innocent treatment procedure, raw material and energy consumption are all lower; Removing the toxic while of residue, non-secondary pollution produces, therefore the pollution problem that has solved the aluminum phosphide fumigation residue up hill and dale; When the residue realization was innoxious, renewable resources had obtained having the aluminum oxide of higher economic worth.
Embodiment
The following stated embodiment describes the present invention in detail.In these embodiments, unless otherwise indicated beyond, all per-cents are all by weight.
Embodiment 1
With stifling residue of 100g and 500g water thorough mixing, be heated to 30 ℃, with the flow CO of 1.50L/min
2Gas stirs mixing solutions, does not have PH until solution
3Gas release is come out; Filtering reacting solution, filter cake be in 120 ℃ of dry 2h, and to get the BET specific surface area through 500 ℃, 3h roasting be 280.0m
2.g
-1Aluminum oxide.
Embodiment 2
With stifling residue of 100g and 500g water thorough mixing, be heated to 50 ℃, with the flow CO of 1.50L/min
2Gas stirs mixing solutions, does not have PH until solution
3Gas release is come out; Filtering reacting solution, filter cake be in 80 ℃ of vacuum-drying 2h, and get aluminum oxide through 500 ℃, 5h roasting, and the tem analysis sample is the acicular structure of diameter 1～2nm, length 30～40nm.
Embodiment 3
With stifling residue of 100g and 300g water thorough mixing, be heated to 70 ℃, with the flow N of 1.70L/min
2Gas stirs mixing solutions, does not have PH until solution
3Gas release is come out; Filtering reacting solution, filter cake be in 100 ℃ of dry 12h, and get aluminum oxide through 1000 ℃, 3h roasting, and the tem analysis sample is the acicular structure of diameter 2～4nm, length 40～60nm.
Embodiment 4
With stifling residue of 100g and 500g water thorough mixing, be heated to 50 ℃, with the flow CO of 1.50L/min
2Gas stirs mixing solutions, does not have PH until solution
3Gas release is come out; Filtering reacting solution, filter cake be in 80 ℃ of dry 4h, and to get the BET specific surface area through 1200 ℃, 3h roasting be 60.0m
2.g
-1Aluminum oxide.
Embodiment 5
With stifling residue of 100g and 1500g water thorough mixing, be heated to 50 ℃, with the flow CO of 1.50L/min
2Gas stirs mixing solutions, does not have PH until solution
3Gas release is come out; Filtering reacting solution, filter cake be in 120 ℃ of dry 4h, and get aluminum oxide through 1300 ℃, 1h roasting, and the tem analysis sample is the sheet structure of diameter 50～60nm.
Claims (1)
1. the harmless treatment of an aluminum phosphide fumigation residue and reclaim method of alumina, its feature of this method comprises following technological process: in container with aluminum phosphide fumigation powder residue with after 20 ℃～60 ℃ excessive water mixes, carry out mechanical stirring or feed N
2Or CO
2Gas stirring is collected PH
3Gas; Question response no longer discharges PH
3Behind the gas, stop heating and stirring; Filtering reacting solution, filtrate cycle use, and filter cake is through 80 ℃～120 ℃ common dryings or vacuum-drying 2～12h, pulverizing, and then obtain aluminum oxide through 400 ℃～1300 ℃ roasting 1～5h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100203163A CN1242078C (en) | 2004-08-16 | 2004-08-16 | Process for innocuous treatment and recovering alumina of aluminium phosphide fumigated slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100203163A CN1242078C (en) | 2004-08-16 | 2004-08-16 | Process for innocuous treatment and recovering alumina of aluminium phosphide fumigated slag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1598014A true CN1598014A (en) | 2005-03-23 |
| CN1242078C CN1242078C (en) | 2006-02-15 |
Family
ID=34663196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100203163A Expired - Fee Related CN1242078C (en) | 2004-08-16 | 2004-08-16 | Process for innocuous treatment and recovering alumina of aluminium phosphide fumigated slag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1242078C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010069158A1 (en) * | 2008-12-17 | 2010-06-24 | 天津大学 | Process and apparatus for preparing activated alumina with batch fluidized bed aluminum phosphide hydrolysis method |
| CN105642661A (en) * | 2016-03-24 | 2016-06-08 | 浙江工商大学 | Device and process for safely treating aluminum phosphide fumigating residues |
-
2004
- 2004-08-16 CN CNB2004100203163A patent/CN1242078C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010069158A1 (en) * | 2008-12-17 | 2010-06-24 | 天津大学 | Process and apparatus for preparing activated alumina with batch fluidized bed aluminum phosphide hydrolysis method |
| CN105642661A (en) * | 2016-03-24 | 2016-06-08 | 浙江工商大学 | Device and process for safely treating aluminum phosphide fumigating residues |
| CN105642661B (en) * | 2016-03-24 | 2018-09-28 | 浙江工商大学 | A kind of secure processing device and technique of aluminum phosphide fumigation residue |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1242078C (en) | 2006-02-15 |
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| C14 | Grant of patent or utility model | ||
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