A Close Recycle Technology for Treatment of Wastewater from 2 Xylidine Production by Reduction Process

全循环工艺治理2二 甲基 苯胺生产中的还原废水

The optimal spectral region and the baseline treatment by different methods were studied then the calibration models of triethylamine and xylidine were established with partial least square regression .

对波长范围的选择和基线处理方法进行了研究，用偏最小二乘法线性回归分析建立三乙胺和 二甲苯 胺的校正模型。

A method for the determination of triethylamine and xylidine in mixed amine by near infrared ( NIR ) spectroscopy is presented .

研究了用近红外光谱分析混胺 组 分三乙胺和 二甲苯 胺含量的方法。

Any of various mixtures of xylidine isomers . Evidently living things can somehow distinguish between optical isomers .

一 种 二 甲基 苯胺同分异构体的混合物显然，生物体对 这 两 种同分异构体能够有所识别。

Determination of m - Xylidine in Waste Water by Liquid - Liquid Micro - Extraction and Gas Chromatography

微量萃取气相色谱法测定 工业废水中的 间 二 甲基 苯胺

The results showed that Pd / C was an efficient catalyst for the reductive condensation of D - ribose and 3 - xylidine the yield could exceed 60 % when the process was carried out under low pressures .

结果表明，Pd／C催化剂是该缩合还原反应的有效催化剂，在低压下的 单程收率可达60%以上。

Determination of Triethylamine and Xylidine in Mixed Amine by Near-Infrared Spectroscopy

近红外光谱 快速测定混 胺 组 分含量

Wastes Treatment Method in Production Process of Xylidine

二甲苯 胺生产过程中的污染治理方法 试验