The separation and purification processes of 2, 6-dmn from coal and petroleum tar are reviewed.
综述了从煤焦油和石油中分离提纯2,6 -二甲基萘工艺。
The utilization and the prepartion methods of 2,6-DMN are introduced. The separation and purification processes of 2,6-DMN from coal and petroleum tar are reviewed.
本文介绍了2 ，6 -二甲基萘的用途和制备方法；综述了从煤焦油和石油中分离提纯2 ，6 -二甲基萘工艺。
Macintosh found that naphtha - a volatile, oily liquid created in the distillation the aforementioned coal tar, as well as petroleum - could be used to waterproof fabrics.
麦金托什发现，石脑油——在蒸馏前面提到的煤焦油以及石油的过程中所产生的一种易挥发的油状液体——可用于防水织物。
Any of various thick, dark, sticky substances obtained from the distillation residue of coal tar, wood tar, or petroleum and used for waterproofing, roofing, caulking, and paving.
沥青，人造沥青：某种厚厚的、黑而粘的物质，由炭焦、木焦或石油的剩余物中提炼出来，用于防水、盖屋顶、填缝和铺路。
A pitch mesophase can be prepared from petroleum pitch and coal tar pitch.
从石油沥青和煤沥青中制取沥青中间相物质。
A pitch mesophase can be prepared from petroleum pitch andcoal tar pitch.
从石油沥青和煤沥青中制取沥青中间相物质。
Carbon foams were prepared from coal tar pitch, petroleum mesophase pitch, and ar pitch.
分别以煤沥青、石油中间相沥青和AR沥青为前驱体制备炭泡沫材料。
This article tries to feel about the method and graft parameter of preparing petroleum naphthalene by the experiment of the branch crystal system to make tar naphthalene.
本文通过分部结晶法制取石油萘的实验，摸索制取石油萘的方法与工艺参数。
Can be widely used in petroleum chemical industry, mining, environmental protection etc where three-phase separation, especially suitable for coal tar fluid solid-liquid separation three-phase.
可广泛应用于石油化工、采矿、环保等进行三相分离的地方，特别适用于煤焦油的液液固三相分离。
Performance: series in the coal tar, fats, petroleum solvents and vegetable oils, turpentine completely dissolved.
性能：在煤焦油系列、脂类、石油类溶剂中及植物油，松节油中完全溶解。
Performance: series in the coal tar, fats, petroleum solvents and vegetable oils, turpentine completely dissolved.
性能：在煤焦油系列、脂类、石油类溶剂中及植物油，松节油中完全溶解。
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