FIELD: petroleum processing and road building materials.
SUBSTANCE: building bitumen is produced via thermooxidation of preliminarily neutralized acid sludge in presence of 1-3% of barium hexaphosphate as catalyst.
EFFECT: enlarged resource of raw materials and lowered level of electromagnetic emission at frequencies from 300 kHz to 2 MHz resulting in favorable environmental effect.
4 dwg, 4 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING BITUMEN FOR ACID SLUDGE | 2005 |
|
RU2275410C1 |
| METHOD OF PRODUCING BUILDING OR ROOFING BITUMEN | 2001 |
|
RU2215772C2 |
| METHOD OF REPROCESSING OF THE ACIDIC GOUDRON | 2005 |
|
RU2289605C1 |
| METHOD OF PRODUCING BITUMEN BINDER FROM REFINERY SLUDGE | 2005 |
|
RU2294952C1 |
| PROCESS OF PRODUCING BITUMEN BINDER FROM ACID SLUDGE | 2005 |
|
RU2275408C1 |
| METHOD OF PRODUCTION OF THE BITUMINOUS BINDING AGENT FROM THE ACID GOUDRON | 2005 |
|
RU2289604C1 |
| PROCESS OF PRODUCING BITUMEN FROM ACID SLUDGE USING ELECTROCHEMICAL TECHNIQUE | 2005 |
|
RU2275409C1 |
| ACID SLUDGE NEUTRALIZING PROCESS | 2005 |
|
RU2275411C1 |
| METHOD OF NEUTRALIZING ACID SLUDGE | 2006 |
|
RU2320701C1 |
| METHOD OF PREPARING BITUMEN BINDER FROM ACID SLUDGE | 2006 |
|
RU2323245C1 |
