Recycling technology of beta-aminopropionitrile

The invention provides a recycling technology of beta-aminopropionitrile. A by-product beta in beta-aminopropionitrile production and beta-iminodipropionitrile continue to be recycled and react to generate beta-aminopropionitrile. The adopted recycling technology improves the beta-aminopropionitrile yield to a larger extent, improves recycling of raw materials in liquid waste, lowers liquid waste disposal, lowers the production cost, and reduces environmental influences. 本发明提供了种β-氨基丙腈的回收工艺，其将β-氨基丙腈生产中的副产物β，β-亚氨基二丙腈，继续回收反应生成β-氨基丙腈。本发明所采用的回收工艺更大程度地提高了β-氨基丙腈的收率，增加了对废液中原料的回收利用，减少了废液处理，降低了生产成本，也减少了对环境的影响。