采用碳酸钠熔融分解样品制成待测试样溶液，同时用于测定中变催化剂中的铁、。
Sample solution is made by decomposing the sample of melted sodium carbonate, which is used to confirm the contents of iron, chromium and molybdenum in MT shift catalyst.
在催化剂、链支化剂存在下多元酸和多元醇直接熔融酯化、常压缩聚合成饱和羟基聚酯。
A saturated hydroxy polyester resin has been prepared with polycarboxylic acid and polyol at the presence of catalyst and chain transfer agent by the direct melt esterification process.
本模型可以准确地计算CSTR反应器的浆液浓度、产物固含率、催化剂残留率、熔融指数等重要的生产指标。
The model can count the important index of production, such as slurry concentration in the reactor, solid contents of products, catalyst residual and MFR.
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