发明名称 |
METHOD OF PREPARING PAVING ASPHALT |
摘要 |
preparation of paving asphalt by vacuum distillation of black oils of sulfur and high- sulfur petroleum. SUBSTANCE: method comprises heating black oil, introducing it into vacuum column, taking cut light distillate, vacuum gas oil fractions and withdrawing stillage residue. Some light distillate is additionally heated and is used as evaporating agent which is introduced into vacuum column still. Stillage residue is mixed with plasticizer which is heavy vacuum gas oil. Mixture is then used as high-grade paving bitumen. EFFECT: more efficient preparation column. 1 dwg, 3 tbl
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申请公布号 |
RU2163920(C2) |
申请公布日期 |
2001.03.10 |
申请号 |
RU19990107797 |
申请日期 |
1999.04.09 |
申请人 |
INSTITUT PROBLEM NEFTEKHIMPERERABOTKI AKADEMII NAU;RESPUB BASHKORTOSTAN K |
发明人 |
KHAJRUDINOV I.R.;DEMENKOV V.N.;TELJASHEV EH.G.;TELJASHEV G.G.;KUT'IN JU.A.;PRESNJAKOV V.V.;ALEKHIN L.S. |
分类号 |
C10C3/06;C10G7/06;(IPC1-7):C10C3/06 |
主分类号 |
C10C3/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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