A shale oil modifier is made of a crude shale oil dehydrogenated sufficiently to attain a viscosity of between about 1200-1800 poise at 60.degree. C. The crude shale oil has sufficient basic nitrogen content so that the dehydrogenated crude shale oil exhibits non-Newtonian properties when mixed with asphalt cements. Preferably, the basic nitrogen content is about 2%-2.5% by weight. The shale oil modifier is made by a process which includes providing a crude shale oil and subjecting the crude shale oil to a two stage distillation followed by a vacuum distillation and collecting the residual fraction. The residual fraction is dehydrogenated with air until a select viscosity, preferably between about 1200-1800 poise at 60.degree. C. is obtained.

Модификатор масла shale сделан незрелого масла shale dehydrogenated достаточно для того чтобы достигнуть выкостности пуаза около 1200-1800 на 60.degree. Ч. Незрелое масло shale имеет достаточно основное содержание азота так, что dehydrogenated незрелое масло shale exhibits нон-non-Newtonian свойства после того как оно смешивано с цементами асфальта. Предпочтительн, основное содержание азота около 2%-2.5% весом. Модификатор масла shale сделан процессом вклюает обеспечивать незрелое масло shale и подвергать незрелое масло shale к two stage выгонке последованной за выгонкой вакуума и собирать остаточную часть. Остаточная часть dehydrogenated с воздухом до отборной выкостности, предпочтительн между пуазом около 1200-1800 на 60.degree. C получено.

 
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