MY113621A - Treatment of fly ash - Google Patents
Treatment of fly ashInfo
- Publication number
- MY113621A MY113621A MYPI96003829A MYPI19963829A MY113621A MY 113621 A MY113621 A MY 113621A MY PI96003829 A MYPI96003829 A MY PI96003829A MY PI19963829 A MYPI19963829 A MY PI19963829A MY 113621 A MY113621 A MY 113621A
- Authority
- MY
- Malaysia
- Prior art keywords
- slag
- fly ash
- gas
- reactor
- separated
- Prior art date
Links
- 239000010881 fly ash Substances 0.000 title 1
- 229910001385 heavy metal Inorganic materials 0.000 abstract 2
- 238000002386 leaching Methods 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 230000001105 regulatory effect Effects 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 abstract 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 1
- 239000005864 Sulphur Substances 0.000 abstract 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 239000000460 chlorine Substances 0.000 abstract 1
- 229910052801 chlorine Inorganic materials 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000002893 slag Substances 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
- 239000011701 zinc Substances 0.000 abstract 1
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
A METHOD AND A PLANT FOR TREATMENT OF FLY ASH ARE DESCRIBED, WHEREIN HEAVY METALS ARE SEPARATED AND WHEREIN THERE IS FORMED A LEACHING RESISTANT SLAG. THE TREATMENT TAKES PLACE IN A REACTOR (2) AND THE FLY ASH IS INTRODUCED INTO AN OXIDIZING GAS STREAM WHICH IS HEATED TO AT LEAST 2500?C IN PLASMA GENERATOR (1). THE FLY ASH MELTS AND FORMS LIQUID DROPS OF SLAG. A CARBONACEOUS OR HYDROCARBONACEOUS MATERIAL IS ADDED TO THE GAS STREAM. THIS BURNS AND SUPPLIES EXTRA ENERGY TO THE PROCESS. THE RATIO OF OXYGEN AND CARBON IS REGULATED IN SUCH A MANNER THAT THE RATIO CO2/CO + CO2 IS KEPT WITHIN THE LIMITS 0.4 - 0.9. HEAVY METALS IN THE FLY ASH SUCH AS ZINC AND LEAD ARE THEREBY REDUCED AND PASS INTO THE GAS PHASE. THE GAS IS DISCHARGED FROM THE REACTOR (2), COOLED AND WASHED AND METAL OXIDES ARE SEPARATED. THE GAS WILL ALSO CONTAIN CHLORINE AND SULPHUR WHICH ARE SEPARATED IN A GAS SCRUBBER. THE SLAG IS COLLECTED IN THE BOTTOM OF THE REACTOR (3) AND CAN BE CONTINUOUSLY TAPPED VIA A SLAG LOCK (9). THE SLAG''S CONTENT OF CAO AND SIO2 CAN BE REGULATED BY THE ADMIXTURE OF A SLAG-FORMING MATERIAL WITH A HIGH CONTENT OF SIO2. A SLAG IS THEREBY OBTAINED WITH EXCELLENT LEACHING RESISTANCE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MYPI96003829A MY113621A (en) | 1996-09-16 | 1996-09-16 | Treatment of fly ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MYPI96003829A MY113621A (en) | 1996-09-16 | 1996-09-16 | Treatment of fly ash |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MY113621A true MY113621A (en) | 2002-04-30 |
Family
ID=81581728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MYPI96003829A MY113621A (en) | 1996-09-16 | 1996-09-16 | Treatment of fly ash |
Country Status (1)
| Country | Link |
|---|---|
| MY (1) | MY113621A (en) |
-
1996
- 1996-09-16 MY MYPI96003829A patent/MY113621A/en unknown
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