FIELD: petroleum processing and disposal of waste.
SUBSTANCE: neutralized acid sludge is subjected to thermal oxidation with air oxygen at 90°C using oxidation catalyst based on galvanic slime. When performing thermal oxidation process, radical acceptor (captax, or mercaptobenzothiazole) is additionally introduced in amount 0.5% based on the weight of acid sludge.
EFFECT: stabilized softening temperature of product and avoided coking of bitumen binder in oxidation stage.
2 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| PROCESS OF PRODUCING BITUMEN FROM ACID SLUDGE | 2006 |
|
RU2313561C1 |
| METHOD OF PRODUCING BUILDING OR ROOFING BITUMEN | 2001 |
|
RU2215772C2 |
| PROCESS OF PRODUCING BITUMEN BINDER FROM ACID SLUDGE | 2005 |
|
RU2275408C1 |
| METHOD OF REPROCESSING OF THE ACIDIC GOUDRON | 2005 |
|
RU2289605C1 |
| METHOD OF PRODUCING BITUMEN BINDER | 0 |
|
SU1736996A1 |
| PROCESS OF PRODUCING BITUMEN FROM ACID SLUDGE USING ELECTROCHEMICAL TECHNIQUE | 2005 |
|
RU2275409C1 |
| METHOD OF PRODUCTION OF THE BITUMINOUS BINDING AGENT FROM THE ACID GOUDRON | 2005 |
|
RU2289604C1 |
| METHOD OF PRODUCING BITUMEN BINDER FROM REFINERY SLUDGE | 2005 |
|
RU2294952C1 |
| METHOD FOR PRODUCTION OF ROAD BITUMEN | 2009 |
|
RU2402589C2 |
| METHOD OF REPROCESSING ACID ASPHALT | 0 |
|
SU1549984A1 |
