摘要
研究了无机盐对乳状液破乳的影响。结果表明 ,极少量的无机盐能有效地加速W /O型乳液的破乳 ,提高破乳脱出水的透光率。特别是NaCl或KCl存在时 ,在 90℃油浴中加热 60min后 ,5ml乳状液的剩余体积分别为 0 .0 2、 0 .0 7ml(即 0 .4%、 1.4% ) ,破乳效率明显高于不含无机盐的乳状液。对于O/W型乳状液 ,极少量的无机盐也能有效地加速其破乳 ,其中AlCl3的破乳效率最高 ,在 90℃油浴中加热 10min ,乳状液全部破乳。不同种类的盐对乳状液破乳脱出水的透光率影响不同。
Experimental data were presented to show the influence of a very small amount of inorganic salt on demulsification of emulsions. It was found that some inorganic salts effectively accelerated the demulsification of water-in-oil emulsions and increased the light transmittance of the water separated from the emulsions. The demulsification efficiency by using NaCl as a demulsifier is higher than those by using other Cl- salts and Na+ salts. Some inorganic salts also effectively accelerated the demulsification of oil-in-water emulsions. Maximum demulsification efficiency by adding AlCl3 was up to 100% in 10 min. It was also found that demulsification efficiency and the light transmittancy of the water separated from the emulsion were attributed to ionic valency and ionic hydrated radius.
出处
《石油学报（石油加工）》
EI
CAS
CSCD
北大核心
2003年第4期94-97,共4页
Acta Petrolei Sinica(Petroleum Processing Section)
基金
国家重点基础研究专项资助项目 (G19990 2 2 50 5)
