哌啶又名六氢吡啶或氮杂环己烷，可用于制造局部麻醉药和止痛药，可作为环氧树脂固化剂、橡胶硫化促进剂和缩合反应的催化剂。国内已有用金属镍催化剂将吡啶催化加氢制取哌啶的生产装置，虽然镍的催化活性较高，但稳定性较差，容易失活和自燃，给储存和使用带来诸多不便。为此 Piperidine, also known as piperidine or azacyclohexane, can be used in the manufacture of local anesthetics and analgesics, as epoxy curing agents, rubber vulcanization accelerators and condensation reaction catalysts. Domestic nickel metal catalysts have been used to catalyze the hydrogenation of pyridine to obtain piperidine production equipment, although the high catalytic activity of nickel, but less stable, easy to deactivate and spontaneous combustion, to the storage and use of a lot of inconvenience. to this end