Heteropoly-acid的意思|示意

The present invention relates to a heteropoly acid catalyst which is used for the production of methacrylic acid by gas phase oxidation of methacrolein and a preparing method thereof.

本发明涉及一种用于通过异丁烯醛的气相氧化制备甲基丙烯酸的 杂多酸催化剂及其制备方法。

In this paper, the optimized technological requirement of the synthesis of acrylate under the catalysis of heteropoly acid was gotten and polymerization retarder for acrylate.

本文研究了杂多酸催化合成丙烯酸酯的工艺条件及其对丙烯酸酯的阻聚作用。

Heteropoly compounds, with the properties of quasi-liquid and super acid, has been widely applied to ester reactions.

杂多化合物由于具有准液相和超强酸性的特征，广泛用于各种酯类反应。

Since heteropoly acid is high yields, little pollution, the use of heteropoly acids (salts) as acid catalysts are increasingly attracted researchers 'interest.

杂多酸作为催化剂产率高、污染小。利用杂多酸(盐)作为酸催化剂的研究越来越引起研究者的兴趣。

The present invention, thereby, provides a novel heteropoly acid catalyst having excellent methacrolein conversion rate, methacrylic acid selectivity and yield.

因此，本发明提供了一种具有优异的异 丁烯醛转化率、甲基丙烯酸选择性和产率的新型杂多酸催化剂。

Polyoxytertramethylene (PTMG) is synthetized in one step using heteropoly acid as catalyst. We discussed the factors which influenced the yield of PTMG.

取以杂多酸为催化剂，一步法合成聚四亚甲基醚醇(PTMG)，对影响聚四亚甲基醚醇单程收率的各因素进行了讨论。