Through the analysis of the experimental data, discussed the optimum condition and the practical operating rules of the phthalic anhydride catalyst loading, and the scientific testing after loading.
以实践中取得的真实数据，探讨了苯酐催化剂装填的最佳条件、装填的实际操作规程、装填后催化剂科学测试等几方面难题。
An alkyd resin has been developed with chemical fiber waste residue as raw material in replacing of phthalic anhydride at the presence of a new catalyst.
采用了一种新型的催化剂，以化纤废渣为原料代替苯酐生产醇酸树脂。
Thiourea was then used as the primary catalyst to making fumaric acid from the waste water of phthalic anhydride.
接下来，通过选用硫脲作为主催化剂，另加入少量的助催化剂，将苯酐废水中的马来酸异构化制取富马酸。
Synthesis of BLP was studied by using PEG 400 as catalyst and phthalic anhydride, butyl alcohol and lauryl alcohol as reactants.
研究了以聚乙二醇400（PEG-400）为催化剂，以邻苯二甲酸酐、 正丁醇、 月桂醇为原料合成邻苯二甲酸丁基月桂酯（BLP）的试验过程。
The catalyst had high activity and high selectivity in esterification of phthalic anhydride with isoamyl alcohol.
该催化剂对邻苯二甲酸酐和异戊醇的酯化活性高，无副反应。
The catalyst had high activity and high selectivity in esterification of phthalic anhydride with isoamyl alcohol.
该催化剂对邻苯二甲酸酐和异戊醇的酯化活性高，无副反应。
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