渣油中无机盐水分散剂的电学性质研究

Study on the interaction of inorganic brine dispersants in residue

通过测定不同类型分散剂与辽河渣油所形成分散体系的电导率,研究了分散剂之间相互作用而导致体系电化学性质的改变。结果表明,随着乳状液在甲苯中浓度的增加,其电导率增大,但是不同类型分散剂对乳状液电导率影响不同,说明分散剂基团的数量和所带电荷不同。在分散剂浓度相同的情况下,对乳状液电导率影响效果是:不同类型的分散剂都使乳状液电学性质增强,但是增幅程度不同。其结果是:阳离子分散剂>阴离子分散剂>非离子分散剂。随着阳离子分散剂CTAB浓度的增加,乳状液电导率增加。分散剂复配的结果表明:分散剂之间的电导率越小,分散剂之间相互作用力越大。

The conductivity of dispersion system formed by different dispersant and Liaohe residue is determined,and the effect of interaction of dispersant on the electro-chemical property of the system is studied.The conductivity increases with the concentration of emulsion increasing,but the conductivity of emulsion with inhomogeneity dispersant is different,indicating the difference of amount of polar group and charge.Under the condition that the concentration of dispersant is same,the degree of amplitude is that cationic >anionic >non-ionic dispersant.The conductivity of emulsion increase with the concentration of CTAB.The results of mixing of dispersants represent that the smaller of conductivity and the larger of interaction of dispersants.