Abstract: A method for preparing a porous inorganic material by at least: a) reaction of a mixture of one precursor of the oxide of a metal X in solution and a precursor of the oxide of a metal Y at a temperature of between 30 and 70° C., X and Y being, independently aluminum, cobalt, indium, molybdenum, nickel, silicon, titanium, zirconium, zinc, iron, copper, manganese, gallium, germanium, phosphorus, boron, vanadium, tin, lead, hafnium, niobium, yttrium, cerium, gadolinium, tantalum, tungsten, antimony, europium or neodymium; b) mixing of the mixture obtained at the end of a) at a temperature of between 80 and 150° C., the mixing period being adjusted so as to obtain a paste that exhibits a fire loss of between 20% by weight and 90% by weight; c) shaping of the porous inorganic material; a) to c) being performed within an extruder.