MD2523F1 - Process for regeneration of the used active coal (variants) - Google Patents
Process for regeneration of the used active coal (variants)Info
- Publication number
- MD2523F1 MD2523F1 MD20030199A MD20030199A MD2523F1 MD 2523 F1 MD2523 F1 MD 2523F1 MD 20030199 A MD20030199 A MD 20030199A MD 20030199 A MD20030199 A MD 20030199A MD 2523 F1 MD2523 F1 MD 2523F1
- Authority
- MD
- Moldova
- Prior art keywords
- regeneration
- treated
- used active
- washed
- hours
- Prior art date
Links
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention refers to the regeneration of sorbents, in particular to the regeneration of the used active coal, obtained as a result of use at the water purification plants and impurified with diverse inorganic and organic substances. Summary of the invention consists in that from the used active coal there are removed the mechanical impurities, then it is treated in a mass ratio of 1:(10...12) with a concentrated HCl solution during 20...30 hours, it is washed with demineralized water, it is treated 2...4 times with a KOH solution, then with NaOH during 20...30 hours and it is washed with demineralized water. After that, the coal is repeatedly treated with a concentrated HCl solution within 20...30 hours, it is washed and dried at 100...110 degree C (I variant); it is thermally treated at 600...720 degree C in the current of carbon dioxide (II variant). Claims: 2
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MDA20030199A MD2523G2 (en) | 2003-08-05 | 2003-08-05 | Process for regeneration of the used active coal (variants) |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MDA20030199A MD2523G2 (en) | 2003-08-05 | 2003-08-05 | Process for regeneration of the used active coal (variants) |
Publications (2)
Publication Number | Publication Date |
---|---|
MD2523F1 true MD2523F1 (en) | 2004-08-31 |
MD2523G2 MD2523G2 (en) | 2005-03-31 |
Family
ID=32906659
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MDA20030199A MD2523G2 (en) | 2003-08-05 | 2003-08-05 | Process for regeneration of the used active coal (variants) |
Country Status (1)
Country | Link |
---|---|
MD (1) | MD2523G2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MD3776G2 (en) * | 2007-09-06 | 2009-07-31 | Государственный Университет Молд0 | Process for photocatalytic regeneration of waste active coal |
MD4214C1 (en) * | 2012-06-18 | 2013-11-30 | Институт Химии Академии Наук Молдовы | Process for modifying the porous structure of activated coal impregnated with Cu(II) and its use for the treatment of underground waters from hydrogen sulfide and sulfides |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MD2478G2 (en) * | 2003-07-17 | 2005-01-31 | Институт Химии Академии Наук Молдовы | Proces for regeneration of the used active coal |
-
2003
- 2003-08-05 MD MDA20030199A patent/MD2523G2/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
MD2523G2 (en) | 2005-03-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
KA4A | Patent for invention lapsed due to non-payment of fees (with right of restoration) | ||
MM4A | Patent for invention definitely lapsed due to non-payment of fees |