Melamine is an important chemical intermediate. In production of melamine by urea method, large amount of solid waste will be discharged which causes environmental pollution and loss of resource.
三聚氰胺是一种重要的化工中间体，尿素法生产三聚氰胺过程中会排放出大量的固体废弃物，既污染环境又浪费资源。
In the condition both the yield and purity of isooctyl nitrate are very high. The method is safe and reliable. and suits to chemical production.
在该条件下制得的硝酸异辛酯收率和纯度都比较高，方法安全可靠，适用于化工生产。
The present invention is a chemical synthesis method, a production method of the allyl dichloride amine.
本发明为化学合成方法是二氯丙烯胺的一种生产方法。
In process of chemical production, it is significant to develop error detection of measured data and research on calibration method.
化工生产过程中，开展测量数据的误差侦破与校正方法的研究具有十分重要的意义。
Trouble caused by pitch deposition in newsprint production of Guangzhou Paper Mill is described. Chemical control method and process control method for controlling pitch deposition are discussed.
主要介绍了新闻纸生产中树脂的沉积及其造成的障碍，重点阐述了目前广州造纸有限公司新闻纸生产中控制树脂沉积的方法。
The method combines a biological engineering technique and a fine chemical industrial technique, has simple operation, and is suitable for large-scale industrial production.
本发明的方法结合了生物工程技术及精细化工技术，操作简单，适合大规模工业化生产。
As the main method of stabilizing oil production and controlling water cut, chemical profile control is an important way to improve the integrated development of high water cut period reservoir.
化学调剖技术作为稳油控水的主要手段，是提高中高含水油藏整体开发效果的重要途径。
The invention relates to an oil-field largest swept volume chemical-flooding oil production method, which is applied to the technical field of oil production in oil fields.
一种最大波及体积化学驱采油方法，应用于油田采油技术领域。
The invention relates to an oil-field largest swept volume chemical-flooding oil production method, which is applied to the technical field of oil production in oil fields.
一种最大波及体积化学驱采油方法，应用于油田采油技术领域。
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