Exothermic oxidation of coal is the main cause of spontaneous combustion.
煤的氧化放热是引起煤自燃的主要原因。
Spontaneous combustion of coal is an extremely complicated physical chemistry process and the moisture is the important factor of the influence of coal oxidation.
煤炭自燃是一个复杂的物理化学过程，煤的水分是影响氧化进程的重要因素。
Both the oxidation resistance and the electrical conductivity of the pitch coke can be improved when a suitable amount of activating agent is added in the coal tar pitch.
初步探讨了活化剂的加入对煤沥青的焦化活性、沥青焦的结构、氧化活性和导电性的影响。
The experiments have shown that the technology of oxidation degradation with nitric acid and sulfoxidation with sodium sulphite to produce water-reducer of cement with decomposed coal is available.
大量实验证明以风化煤为原料采用硝酸氧化降解后再磺化的方法生产混凝土减水剂的工艺是合理的。
The thermal analysis was used to study the oxidation and thermal degradation reaction of coal with different oxidation degrees of coal.
用热分析手段研究了不同煤化程度煤的氧化热解反应。
Several kinds of coal inhibitors are tested with programmed temperature -rise oxidation method and the time -temperature curves are obtained under enough oxygen condition.
对几种阻化剂进行了程序升温氧化法测定，获得了在氧气量充足情况下原煤样与各阻化煤样的时间- 温度曲线。
According to the molecule orbital theory, the oxidation spontaneous combustion reaction of the low molecular compound in coal takes place at the atoms which charge density is thick.
根据分子轨道理论，煤中低分子化合物的氧化自燃反应发生在电荷密度较大的原子部位，计算得到了煤有机质中低分子化合物发生氧化自燃反应的活性点。
The experiment on adsorption and biochemical treatment of the pollutant of waste water from oil production by powder coal ash of power plant and oxidation pond of ash field have been conducted.
利用电厂粉煤灰及灰场氧化塘对现河首站采油废水中的污染物进行吸附和生化处理试验。
This article intended to provide theoretical foundation for the preparation of coal-based composites through the investigation of the photo-catalytic oxidation characteristics of coal.
本文旨在通过对煤光催化氧化特性的研究，为煤基降解复合材料的制备提供理论基础。
Based on the fundamental theory of coal to self-ignite and the adiabatic oxidation equation, the adiabatic oxidation equipment was designed and.
在煤自燃动力学基本方程基础上得到了煤绝热氧化方程，并设计了相应绝热氧化实验装置。
This investigation is about the influence of fatty acid used as the promoter on the product of bituminous coal oxidation by oxygen and alkaline solution acting in an autoclave.
采用高压釜实验，研究烟煤在碱性介质中氧气氧化时加入有机脂肪酸促进剂对产品生成的影响。
The coal oxidation became faster with higher reaction temperature and higher concentration of H2O2.
煤炭氧化的程度随温度、H2O2水溶液的浓度增加而加快，反应温度的影响尤其显著。
As a new development of mild coal cleaning, the desulfurization and deashing of coal by electrochemical oxidation of coal water slurry has received an increasing great interest abroad.
作为一种煤的温和化化学净化，煤的电化学法脱灰脱硫近期在国外引起广泛关注。
The electrochemical oxidation of coal slurry to produce hydrogen and organic carboxylic acids in the last decades is reviewed.
本文主要介绍国内外近十几年来，煤浆液电化学氧化制取氧气及有机羧酸类产物的研究进展。
Both the oxidation resistance and the electrical conductivity of the pitch coke can be improved when a suitable amount of activating agent is added in the coal-tar pitch.
用这种煤沥青制得的沥青焦，其抗氧化性提高，在活化剂加入量适宜时沥青焦的导电性能也有所提高。
The results show that the smaller coal size, the higher oxidation temperature, and the longer oxidation time, the higher concentration of paramagnetic center are able to form free radicals.
结果表明，诸因素均能诱发煤自由基的形成：煤体被破碎地越细小，自由基浓度越大；
The experiment results showed that the arsenic of coal was obviously removed in oxidation solvents under ultrasonic and microwave radiation. The yield of removing arsenic in coal reached 90% and more.
实验结果表明：超声波和微波结合氧化剂可得到较好的脱砷效果，砷的脱除最高可达90 %以上。
With the increase of coal mine methane superficie velocity, pressure loss and outlet temperature of the oxidation bed increase.
随着进入氧化床的乏风气体表观速度的增加，压强损失和出口温度都增加；
The results indicate that the mechanisms of different density grade's coal components in photo-oxidation degradation are different;
结果表明：不同密度级的煤样其光催化氧化降解的机理不同；
The results indicate that the mechanisms of different density grade's coal components in photo-oxidation degradation are different;
结果表明：不同密度级的煤样其光催化氧化降解的机理不同；
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