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- W1981330333 abstract "The dependence of the coefficient of friction on the extrusion pressure and pore distribution in the granules was studied for real catalyst masses extruded through metallic and fluoroplastic dies. Three types of extrusion masses were used: 1) 80% of ground reprecipitated aluminum hydroxide powder and 20% of aluminum hydroxide thermally dispersed on catalytic heat generators (CHG) and autoclaved; 2) aluminum hydroxide paste, thermally dispersed on CHG and autoclaved, with technical aluminum hydroxide, thermally dispersed on CHG and ground in a ball mill; 3) 70% of high-alumina zeolite and 30% of ground reprecipitated aluminum hydroxide powder. Nonuniformity of porosity distribution within the granules was found to depend to a considerable degree on forces of adhesion of the extrusion mass to the die walls. The lowering of the coefficients of nonuniformity of porosity distribution in granules formed by extrusion through a metallic die in comparison with extrusion through a fluoroplastic die is due to greater adhesion of the extruded material to the die walls." @default.
- W1981330333 created "2016-06-24" @default.
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- W1981330333 date "1986-10-10" @default.
- W1981330333 modified "2023-09-26" @default.
- W1981330333 title "Influence of friction against the die wall on the porosity of extruded catalysts" @default.
- W1981330333 hasPublicationYear "1986" @default.
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