Simulated moving bed technology possesses a promising application in the field of adsorptive separation for aromatic isomers, and the core of this process lies in adsorbents and desorbents with high performance.

In this paper, a heterogeneous adsorption equilibrium model developed earlier by the authors was applied to C_8 aromatic isomers/KY systems.

According to the character of aromatic hydrocarbon isomerization process(AHIP)that there are many factors influencing the productive ratio of p-xylene(PX)in AHIP,a novel adaptive artificial neural network(ANN)is proposed to model the AHIP.

The investigation on isomeric configuration stability of interlinking boranes neo-B_(20)H_(18)~(2-);

Improving the Accuracy of Isomer's PLS Prediction Model in Near Infrared Spect rum Analysis by Subtractive Spectra Technology;

Adopting the Method of Correlation Coefficient to Improve the Accuracy of the Xylene Isomer's Prediction Model;

Vapor-liquid equilibria of TDA isomeric compounds in vacuum and application;

High speed countercurrent chromatography(HSCCC) was successfully used for the separation and preparation of isomeric compounds.

In this work, quantum chemical calculation on some organic phosphonic acids, 2-phosphono-butane-1,2,4-tricarboxylic acid(PBTCA) and its isomeric compounds, which behave as scale inhibitors were carried out by using Density Functional Theory(DFT) methods of Gaussian98 program package, Onsager model was adopted to simulate the solvent effect.