The present invention relates primarily to processes conducted in a continuously operated reactor for preparing particular phosphorus-containing α-aminonitriles of the formulae (Ia) and (Ib) defined hereinafter from corresponding phosphorus-containing cyanohydrin esters and to the use thereof for preparation of glufosinate or of glufosinate salts. The present invention further relates to a process for producing glufosinate/glufosinate salts.本發明主要關於於連續操作之反應器中實施以用於製備在下文中所定義來自對應的含磷的氰醇酯之特定的式(Ia)及(Ib)之含磷的α-胺基腈之方法,及其用於製備草銨膦或草銨膦鹽之用途。本發明進一步關於一種用於生產草銨膦/草銨膦鹽之方法。