【摘 要】
:
采用碱性氧化铝和高氯酸/冰乙酸改性的酸性氧化铝两步法将减压渣油分成烃、中性分、碱性分和酸性分。用非水电位滴定法,元素分析法及红外光谱法对渣油及其组成中的氮化物进行分
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采用碱性氧化铝和高氯酸/冰乙酸改性的酸性氧化铝两步法将减压渣油分成烃、中性分、碱性分和酸性分。用非水电位滴定法,元素分析法及红外光谱法对渣油及其组成中的氮化物进行分析鉴定。结果表明,四种渣油的中性份、碱性份和酸性份中,均以非碱性氮含量最高,弱碱性氮含量最少。
The vacuum residue was separated into hydrocarbon, neutral, alkaline and acidic by a two-step method using alkaline alumina and perchloric acid / glacial acetic acid modified alumina. Non-aqueous potentiometric titration, elemental analysis and infrared spectroscopy analysis of residual oil and its composition of the nitride identified. The results showed that among the four kinds of residual oils, the content of non-basic nitrogen and the content of weakly basic nitrogen were the lowest among the neutral, alkaline and acid fractions.
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