介绍了磺化煤的制备方法。
试验结果多方面肯定了磺化煤脱酚是吸附过程。
试验研究了褐煤制磺化煤的制备方法及磺化温度、磺化时间、酸煤比等因素对产物磺化煤的离子交换活性的影响。
The preparation methods of sulfonated coal and factors such as sulfonation time, sulfonation temperature and ratio of acid to coal etc.
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 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.
实验考察了煤种、磺化温度、磺化时间、煤粒度等因素对于产物磺化物离子交换活性的影响。
The effects of coal ranks, the temperature for sulphonating re-action, the sulphonating duration, the coal size etc on the characteristics of ions ex-change of sulphonated coal are tested.
实验考察了煤种、磺化温度、磺化时间、煤粒度等因素对于产物磺化物离子交换活性的影响。
The effects of coal ranks, the temperature for sulphonating re-action, the sulphonating duration, the coal size etc on the characteristics of ions ex-change of sulphonated coal are tested.
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