In the second part, with the mixed emulsifier and the method of ultrasonic emulsification, the wastecoal tar pitch was used to produce emulsified fuel.
第二部分内容采用混合乳化剂和超声乳化法，以炭素厂废煤沥青为原料生产沥青乳化燃料。
2
He was attempting to manufacture quinine from aniline, an inexpensive and readily available coal tar waste product.
他试图用苯胺批量制造奎宁，苯胺是一种廉价且容易获得的煤焦油废料。
3
Millions of tonnes of carbon dioxide could be prevented from entering the atmosphere following the discovery of a way to turn coal, grass or municipal waste more efficiently into clean fuels.