For citation: Svyatenko N., Prokof’ev V.Yu., Gordina N.E. Use of mechanochemical activation to control rheological properties of moulding pastes for catalysts and sorbents extrusion. <...> Были рекомендованы мельницы со средним значением энергонапряженности (до 6 кВт/кг). <...> Prokof’ev, N.E. Gordina Nataliya Svyatenko Departament of Machine Projecting Basics; Faculty of Mechanical Engineering and Transport; Technical University of Moldova, 168, Stefan cel Mare Bd., MD-2004, Chisinau, Republic of Moldova E-mail: natalymonsveat@mail.ru Valery Yu. <...> Prokof’ev ( ), Natalya E. Gordina Department of Inorganic Substances Technology, Ivanovo State University of Chemistry and Technology, Sheremetevskiy ave., 7, Ivanovo, 153000, Russia E-mail: valery.prokofev@gmail.com ( ), gordina@isuct.ru USE OF MECHANOCHEMICAL ACTIVATION TO CONTROL RHEOLOGICAL PROPERTIES OF MOULDING PASTES FOR CATALYSTS AND SORBENTS EXTRUSION The influence humidity, grinding and mechanical activation of the solid phase on the rheological properties of the molding paste for extrusion of catalysts and sorbents was studied. <...> The following parameters of the molding pastes were investigated, namely the coagulation structure strength, the flow index, the maximum plastic viscosity, the critical shear stress, plasticity, the r (stuelaxation period), the ratio of deformations. <...> In order to characterize the degree of mechanochemical activation, the dimension of the coherent scattering region and the microdeformations value were used. <...> Increasing the degree of mechanochemical activation of the solid phase was shown to allow controlling the properties of molding pastes in a more wide range. <...> Key words: mechanochemical activation, rheology, extrusion Mechanochemistry has received quite a rapid development in recent years. <...> However, mechanochemistry is also a powerful tool with which it is possible to control the properties of the systems on the subsequent grinding stage. <...> In particular, activation of the solid phase enables significantly affect rheological properties of pastes for extrusion of bulk products from the powders [3]. <...> The obtained by extrusion molding the products occupy a significant place in the nomenclature of manufactured catalysts and sorbents [4]. <...> For the success of the extrusion molding, the rigid requirements are imposed on rheological properties of molding pastes [5, 6]. <...> Tests on the rheometers with parallelshifting plates (maximum plastic viscosity η1, critical shear stress Pk1, plasticity Ps, relaxation period Θ, the deformation <...>