This invention relates to a dearomatized asphalt. More particularly, an asphalt is extracted with a aromatic extraction solvent to produce an asphalt-rich phase and a solvent rich phase. The asphalt rich phase is stripped of solvent to produce dearomatized asphalt that has superior properties for paving and roofing applications.
申请公布号
WO2008005410(A2)
申请公布日期
2008.01.10
申请号
WO2007US15315
申请日期
2007.06.29
申请人
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY;MORAN, LYLE, E.;WINDSOR, LARRY, W.