查询词典 pitch coal

It was considered that the rubber,as a hydrogen donor,might take part in the modification of coal tar pitch and formed a new asphaltine.

橡胶在改质过程中作为供氢媒介参与筑路油的热解反应，正是煤沥青的受氢作用改善了筑路油的质量。

For settling these problems, the plants producing coal tar pitch have done a great deal of works in technical development and introduction, produce development and analysis improvements.

针对这些问题，我国煤沥青生产厂在技术开发、引进、产品开发、完善检验手段等方面开展了大量工作。

Coal tar pitch ; rheological properties ; activation energy ; free volume

煤沥青；流变性能；活化能；自由体积

Keywords: Impregnation; coal tar pitch; carbon yield

要害词：浸渍；煤沥青；产碳率

A series of Sn/C composites was prepared by thermal condensation of coal tar pitch and tributyltin chloride with different proportions.

以煤焦油沥青为碳源、三丁基氯化锡为锡源，采用压力下聚合手段原位合成出Sn/C复合材料，并对它的电化学性能进行了研究。

The reason of the higher value of quinoline insoluble material in coal pitch is analyzed through the determination theory of methyl benzene insoluble material.

针对在试验过程中发现煤沥青中喹啉不溶物分析结果偏高的现象，根据煤沥青中甲苯不溶物的测定原理，找到造成这种现象的原因，然后从不同的角度进行试验，最终摸索出一套分析煤沥青中喹啉不溶物含量的简单、经济、可行的方法。

Production and operation of spiral steel pipe (spiral welded steel pipes, spiral welded pipe, Cangzhou spiral pipe, spiral pipe, spiral wound steel tube), seamless steel pipe, straight seam steel pipes, hot-rolled steel pipes, hot expanded steel pipe, welded steel pipe, galvanized steel pipe, galvanized pipe, pipe stress, anti-corrosion steel pipe, pipe insulation oil and gas 2PE/3PE polyethylene coating, FBE pipe anti-corrosion epoxy powder dissolved, epoxy coal tar pitch as if paint, pipe cement mortar lining anti-corrosion, black yellow jacket pipe insulation, flanges, elbows, big bend, three links, the size of a top tube.

生产经营螺旋钢管（螺旋缝焊接钢管、螺旋焊管、沧州螺旋钢管、螺旋管、螺旋缠绕钢管）、无缝钢管、直缝钢管、热轧钢管、热扩钢管、焊接钢管、镀锌钢管、镀锌管、压力钢管、防腐钢管、保温钢管（石油天然气2PE/3PE聚乙烯防腐层、FBE溶解环氧粉末钢管防腐、环氧煤沥青仿佛涂料、钢管水泥沙浆衬里防腐、黑黄夹克保温钢管、法兰、弯头、大弯、三通、大小头等管件。

During thermal treatment of coal tar pitch to 340 ℃ and invariableness, TI-QS content also changes as parabola, its maximum（37.49%） appears at 10 h.

实验发现，软沥青非等温热聚合过程中甲苯不溶喹啉可溶物含量呈抛物线型变化，在480℃～500℃之间出现极大值20.709／5～24.38％。

Currently our major products includes the carbon black of N220、N234、N219、N330、N326、N339、N550、N539、N650、N660、N770、N774, which are used for rubber production, the carbon black of PC 128, which is specially for Color Masterbatch, as well as Industrial naphthalene, coal tar pitch, anthracene oil, wash oil, light oil, etc..

目前，公司主要产品有橡胶用炭黑N220、N234、N219、N330、N326、N339、N550、N539、N650、N660、N770、N774。色素炭黑HB-1、HB-2、HT-2、HT-5；色母专用炭黑PC128及工业萘、煤沥青、蒽油、洗油、轻油等。

The results establish foundations for controlling polymerization and carbonization process of refined coal-tar pitch.

通过改变试样量和升温速率，利用热解重量分析仪研究精制沥青的热解过程，为沥青的聚合和炭化过程的控制提供依据。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。