| 发明名称 |
METHOD OF PREPARING PAVING BITUMENS |
| 摘要 |
FIELD: petroleum processing and road-building. SUBSTANCE: paving bitumens are prepared by hydrocarbon solvent-assisted deasphalting of goudron followed by mixing deasphalting asphalt with petroleum diluents. Deasphalting is carried out such that content of paraffin-naphtene hydrocarbons would not exceed 10-11% and weight ratio of asphaltenes to saturated hydrocarbons would be 1.4-1.7. EFFECT: improved disperse structure resulting in increased paving lifetime and simplified method of preparing paving bitumens. 3 tbl, 7 ex |
| 申请公布号 |
RU2142493(C1) |
申请公布日期 |
1999.12.10 |
| 申请号 |
RU19980108563 |
申请日期 |
1998.04.30 |
| 申请人 |
INSTITUT PROBLEM NEFTEKHIMPERERABOTKI AN RESPUBLIK;OO BASHKIRSKIJ INSTITUT PATENTOVEDENIJA I SERTIFIKATSII;OO BASHKIRSKIJ INST PATENTOVED |
发明人 |
USMANOV M.M.;IL'JASOV V.G.;SAJFULLIN N.R.;TELJASHEV EH.G.;KHAJRUDINOV I.R.;KUT'IN JU.A.;NIGMATULLIN R.G.;SULTANOV F.M.;BIKTIMIROVA T.G.;SULEJMANOV N.T. |
| 分类号 |
C10C3/08 |
主分类号 |
C10C3/08 |
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