Barbash V.A.

It was found that cereal stems and industrial plant fibers contain more minerals than wood, which must be taken into account in the pulping process. The processes of cellulose production from stems and fibers of non-wood plant materials (NWPM) have been investigated with an ecologically safer organosolvent method of delignification using peracetic and performic acids. The influence of the main technological parameters of cooking on the quality indicators of theobtained pulp from NWPM is determined.

The influence of the basic technological parameters of traditional and organosolvent methods of cooking cellulose from stalks and fibers of non-wood plant material for its quality were investigated. The effect of alkaline extraction in quality microcrystalline cellulose from hemp fibers was determinated. The process of obtaining organosolvent hemp pulp was investigated. Depending quality parameters of microcrystalline cellulose to major technological factors was established. The technology of obtaining microcrystalline cellulose from hemp and flax fibers was developed.

The resource-saving and ecologically cleaner technologies of obtaining pulp from the stems of agricultural plants were developed. Chemical composition and microscopic structure of representatives of Ukrainian plants were identified. Influence of basic technological parameters of obtained pulp by different methods of delignification on their indexes of quality. New methodology of efficiency comparison of domestic non-woody plant materials delignification processes is offered.

Fractional and chemical composition, microscopic structure of various representatives of non- wood plant Ukrainian material was investigated. The necessity of using new crops for obtaining fibrous semi-finished products for needs of pulp and paper industry was well-founded. The influence of main technological factors (temperature, duration, consumption of basic chemicals) of obtaining fibrous semi-finished products to their physical and mechanical performance was investigated.

Chemical composition and microscopic structure of stems of representatives of non-wood plant raw material were established, which allowed to prove the feasibility of processing them into production of pulp and paper, pharmaceutical and woodworking industries. Influence of main technological parameters (concentration, temperature and chemicals consumption) of obtaining pulp on quality indexes (yield, content of residual lignin, physical and mechanical properties) was studied. This allowed calculating adequate regression equations using mathematical methods of planning experiment.