Without calcination or removing carbon deposition, a facile way to restore catalytic capacity of deactivated phosphate catalysts for Prins reaction was developed with the assistance of carbon deposition. The catalytic activity was successful restored by mixing the fresh catalysts with deactivated ones, which can be owed to the synergy effect between acid species and carbonaceous species for isoprene synthesis.

中文翻译：

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开发一种简便的方法，在碳沉积的辅助下，恢复失活的磷酸盐催化剂用于Prins反应的反应性

在不煅烧或不除去碳沉积的情况下，借助于碳沉积，开发了一种简便的方法来恢复失活的磷酸盐催化剂用于Prins反应的催化能力。通过将新鲜的催化剂与失活的催化剂混合，可以成功地恢复催化活性，这可以归因于异戊二烯合成中酸和碳质物质之间的协同作用。