聚乙烯装置催化剂溶液中钛、钒含量测定方法的改进

Improvement of Determination Method of Titanium and Vanadium in the Catalyst Solution of Polyethylene Unit

移取2~3 m L(约1.76~2.64 g)CAB或CAB-2催化剂溶液,在硫酸溶液中以3%过氧化氢为显色剂,分别于410 nm和460 nm处测定混合物吸光度,通过解联立二元方程式求出催化剂溶液中钛、钒含量。

2-3m L（1.76 - 2.64 g） CAB or CAB-2 catalyst solution was sampled, and then taking 3% hydrogen peroxide as chromogenic agent in sulfuric acid solution, the absorbance of the mixture at 410 nm and 460 nm was determined, titanium content and vanadium content in the catalyst solution were obtained by solving the simultaneous binary equation.