medium temperature coal tar

英 [ˈmiːdiəm ˈtemprətʃə(r) kəʊl tɑː(r)]

美 [ˈmiːdiəm ˈtemprətʃər koʊl tɑːr]

网络中温煤焦油

Phenol Extraction from Fraction of Medium and Low Temperature Coal Tar and Phenol Refining
中低温煤焦油馏分油的酚抽提精制工艺研究
Research of Delayed Coking Process of Medium and Low Temperature Coal Tar
中、低温煤焦油延迟焦化的工艺研究
In this paper, medium temperature coal tar pitch was used as the raw material, and anthracene oil and wash oil were used to adjust the softening point as the diluents. Then remove QI from the soft pitch by the method of mixed solvent-centrifugal.
本论文以中温煤沥青为原料，蒽油和洗油为稀释剂调节煤沥青的软化点，再以混合溶剂离心法脱除软沥青中QI，蒸馏出溶剂得到精制软沥青。
The medium and low temperature coal tar is one of the by-products of the processing to produce semicoke and gas from carbonization of coal. It includes many kinds of complex compounds especially phenols.
中低温煤焦油是煤低温干馏生产兰炭、煤气的副产品，成分非常复杂，尤其是酚类物质占很大比例。