Reduction of carbon disulfide consumption in xanthation by ammonia-activation of cellulose

Production of rayon fibres from cellulosic pulps: State of the art and current developments

“…In an attempt to reduce the CS 2 consumption, Butkova and co-workers proposed the activation of cellulose with liquid ammonia (Butkova et al, 1979), while few years later Abramova and co-workers suggested the activation of cellulose prior to xanthation with urea (Abramova et al, 1982). Kraft & Schelosky (2000) proposed the electron beam treatment of dissolving pulps to facilitate their xanthation.…”