Catalyst composition and use thereof in selective hydrogenation of conjugated diene latex

The invention provides a catalyst composition, which comprises a VIII group metal compound catalyst shown as formula I and an auxiliary agent, wherein the auxiliary agent is sodium dodecyl benzene sulfonate. The catalyst system provided by the invention can realize effective hydrogenation of latex, can significantly reduce the use amount of the catalyst, improve the catalytic efficiency and reducethe industrial cost by adding a small amount of the auxiliary agent, has no participation of an organic solvent in the reaction process, and is beneficial to green chemical industry. The reaction rate of the reaction system is increased, the usage amount of the catalyst is low, the cost can be reduced, the reaction conditions are mild, the reaction efficiency is high, and rapid industrializationis facilitated. 本发明提供了一种催化剂组合物，包括式Ⅰ所示的第Ⅷ族的金属化合物催化剂，和助剂，所述助剂为十二烷基苯磺酸钠。本发明提供的催化剂体系可以对胶乳实现有效的加氢，通过添加少量助剂，能够显著降低催化剂用量，提高催化效率，降低了工业成本，反应过程无有机溶剂参与，有利于绿色化工。该反应体系反应速率加快，催化剂的使用量低，能够降低成本，且反应条件温和，反应效率高，有利于实现快速工业化。