Manufacture of vu00ectreos macro porous monoliths based on phosphate using cellulose as a foaming agent for application as a porous support multifunctional

摘要

"The manufacture of vu00ectreos macro porous monoliths based on phosphate using cellulose as a foaming agent for application as a porous support multifunctional.The present invention relates to a process for the manufacture of vitreous macro porous monoliths based on phosphate, mechanically resistant and high chemical durability.Via sintering of vitreous powder X (~ 2 ~ ~ 2 ~ or Li) - YNB ~ 2 ~ ~ 5 ~ - zcao - (100 - X - Y - z) P ~ 2 ~ ~ 5 ~ (where x 4 243 243 6, 12 243 y 243 18 and 43 243 Z , 243, 51) mixed with cellulose.The concentration variable between and 50% by mass, as foaming agent (agent promoter control of the porosity), for use as a porous support multifunctional.The monolith, whose porosity is also a function of the temperature and sintering time, preserves its characteristic of vitreous material.Since the temperature of sintering is fixed in the temperature of maximum linear shrinkage rate and the sintering time is not more than 30 minutes.