JPS573716A - Treatment of waste desulfurization catalyst - Google Patents
Treatment of waste desulfurization catalystInfo
- Publication number
- JPS573716A JPS573716A JP7578280A JP7578280A JPS573716A JP S573716 A JPS573716 A JP S573716A JP 7578280 A JP7578280 A JP 7578280A JP 7578280 A JP7578280 A JP 7578280A JP S573716 A JPS573716 A JP S573716A
- Authority
- JP
- Japan
- Prior art keywords
- acid
- waste
- filtrate
- remove
- desulfurization catalyst
- 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
- 239000003054 catalyst Substances 0.000 title abstract 4
- 238000006477 desulfuration reaction Methods 0.000 title abstract 4
- 230000023556 desulfurization Effects 0.000 title abstract 4
- 239000002699 waste material Substances 0.000 title abstract 4
- 239000002253 acid Substances 0.000 abstract 3
- 239000000706 filtrate Substances 0.000 abstract 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 2
- 239000003513 alkali Substances 0.000 abstract 2
- 238000001354 calcination Methods 0.000 abstract 2
- 239000003518 caustics Substances 0.000 abstract 2
- 239000003921 oil Substances 0.000 abstract 2
- 230000001590 oxidative effect Effects 0.000 abstract 2
- 239000000047 product Substances 0.000 abstract 2
- 239000011593 sulfur Substances 0.000 abstract 2
- 229910052717 sulfur Inorganic materials 0.000 abstract 2
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 abstract 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- UNTBPXHCXVWYOI-UHFFFAOYSA-O azanium;oxido(dioxo)vanadium Chemical compound [NH4+].[O-][V](=O)=O UNTBPXHCXVWYOI-UHFFFAOYSA-O 0.000 abstract 1
- 239000000295 fuel oil Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- VLAPMBHFAWRUQP-UHFFFAOYSA-L molybdic acid Chemical compound O[Mo](O)(=O)=O VLAPMBHFAWRUQP-UHFFFAOYSA-L 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 238000005185 salting out Methods 0.000 abstract 1
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
PURPOSE: To recover V and Mo from waste catalyst for the desulfurization of fuel oil, in high recovery, by reacting caustic alkali with the waste desulfurization catalyst after oxidative calcination to remove attached oil and sulfur therefrom.
CONSTITUTION: Waste desulfurization catalyst is subjected to oxidative calcination at 500W1,000°C for several hours to remove sulfur and attached oil. The calcined product is made to react with an aqueous solution of caustic alkali in an autoclave under a pressure of ≥1kg/cm2 at ≥100°C, and the slurrified product is filtered to obtain the filtrate containing V and Mo. After adjusting the pH of the filtrate to 8W9 by adding acid thereto, the filtrate is heated at 60W70°C to precipitate and remove the trace of Al dissolved. The pH is again adjusted to 7W8 with an acid, and V is precipitated as ammonium vanadate by salting out with (NH4)2SO4. An acid is added to the residual liquid to attain about pH2. The dissolved Mo is precipitated by this process as molybdic acid.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7578280A JPS573716A (en) | 1980-06-05 | 1980-06-05 | Treatment of waste desulfurization catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7578280A JPS573716A (en) | 1980-06-05 | 1980-06-05 | Treatment of waste desulfurization catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS573716A true JPS573716A (en) | 1982-01-09 |
Family
ID=13586121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7578280A Pending JPS573716A (en) | 1980-06-05 | 1980-06-05 | Treatment of waste desulfurization catalyst |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS573716A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104607044A (en) * | 2014-12-19 | 2015-05-13 | 中国科学院广州能源研究所 | A dry type desulfurization filter used for diesel engine exhaust and a preparing method thereof |
| CN109745860A (en) * | 2017-11-02 | 2019-05-14 | 刘学成 | A kind of novel coupled desulfurization trap and preparation method thereof |
-
1980
- 1980-06-05 JP JP7578280A patent/JPS573716A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104607044A (en) * | 2014-12-19 | 2015-05-13 | 中国科学院广州能源研究所 | A dry type desulfurization filter used for diesel engine exhaust and a preparing method thereof |
| CN109745860A (en) * | 2017-11-02 | 2019-05-14 | 刘学成 | A kind of novel coupled desulfurization trap and preparation method thereof |
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