Feasibility has been shown for obtaining anisotropic pitches by heat treatment of various types of petroleum raw materials such as isotropic pitches from heavy pyrolysis tar and heavy catalytic cracking gas oil. A dependence was found for the change in the group composition of the heat treatment residues on the duration of the isothermal heating. A correlation was seen between the components insoluble in toluene and quinoline. Features of the optical texture of the heat treatment residues of various isotropic petroleum pitches were found.

中文翻译：

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评价通过热处理各类烃原料获得中间相的可行性

已经显示出通过对各种类型的石油原料进行热处理获得各向异性沥青的可行性，例如来自重热解焦油和重催化裂化瓦斯油的各向同性沥青。发现热处理残渣的基团组成的变化与等温加热的持续时间有关。发现不溶于甲苯的组分和喹啉之间存在相关性。发现了各种各向同性石油沥青热处理残渣的光学织构特征。