一、概说在无产级阶文化大革命的推动下,各地保粮职工,坚持“自力更生”的方针,土法生产杀虫药剂,得到了迅速的发展,现巳遍及全国各地。我们是在六七年五月自制磷化铝成功的基楚上发展磷化钙生产的。实践中,经过七次重大工艺改革,终于在七一年完善了我们自己的黄磷生石灰法磷化钙生产工艺,它具有:设备简单效果好,生产安全质 I. General Provisions Under the impetus of the Great Proletarian Cultural Revolution, grain-conserving workers across the country adhere to the principle of “self-reliance” and indigenous production of insecticide has gained rapid development and is now spreading all over the country. We developed calcium phosphide production on the basis of the successful production of aluminum phosphide in May-June of this year. In practice, after seven major technological reforms, we finally completed our own phosphogypsum calcium phosphate production process in 1979. It has the following features: simple equipment, good production safety