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�ؼ���� ܽ�� UNIFAC ��

Abstract�� The solubility of ophthalic acid(oPTA),mphthalic acid (mPTA) and pphthalic acid(pPTA) in water was measured using an equilibrium cell at temperature from 298 K to 393 K.The UNIFAC activity coefficient model was applied to correlate the solidliquid equilibrium data.The interaction parameter of the UNIFAC model has been recorrelated to improve the correlation accuracy.The relative deviations of the calculated solubility to the experimental data are 131%,234% and 190% for mPTA,oPTA and pPTA respectively.

Keywords�� solubility UNIFAC correlation

Received 1999-10-15;

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��,��.�ڱ��ᡢ�䱽��ͶԱ��ˮ�е��ܽ��[J]. ��ѧ��ҵ�빤��, 1999,16(4): 52-54

Zhu LiangWang Lisheng .Solubility of oPhthalic, mphthalic acid and pPhthalic acid in water[J]. Chemcial Industry and Engineering, 1999,16(4): 52-54