Recovery of monomer from nylon waste powder for its recycling

Abstract

Recovery of monomer hexamethylene diamine(HMD) in the form of dibenzoyl derivative of hexamethylene diamine (DBHMD) from Nylon waste rope powder was carried out by degradation of Nylon waste powder of nylon rope waste. The molecular weight of nylon waste powder was found to be 26582. The minimum amount of nylon waste powder and hydrochloric acid required for maximum recovery of HMD and DBHMD was found to be 3g and 5N,50ml hydrochloric acid respectively. Further it was observed that the maximum time and temperature required for getting maximum yield of DBHMD was 120 minutes and 80°C respectively.