Patent ES-8600958-A1 (ES)
Title: Process and apparatus for carrying out continuous exothermal gas producing reactions in the dry phase.
IPC: B01J8/10
Filed: 1984-07-27
Abstract: Appts. for carrying out gas-releasing exothermic ''dry-phase'' reactions (i.e. reactions between solid, liq. or gaseous reactants resulting in solid prods.) on a continuous basis comprises: a high-efficiency blade-type mixer in communication with an overlying expansion chamber a continuous feed device for introducing reactants into the mixer at least one feed inlet for introducing reactants into the bottom 1/4 of the expansion chamber a continuous or discontinuous product recovery system located beneath the mixer a gas exhaust system including a dust filter and opt. at extractor fan, at the top of the expansion chamber and an annular chamber surrounding the expansion chamber and discharging into the upper part of the expansion chamber, for introducing a diluent gas. - Also claimed are (i) various prods. produced using the above appts., viz. mono- and dicalcium phosphate, powdered Mg-contg. prods. and fertilisers contg. them, and Na-contg. prods., and (ii) powdered Mg-contg. prods. soluble in neutral NH4 citrate. EPAB- EP-133099 B Appts. for carrying out gas-releasing exothermic ''dry-phase'' reactions (i.e. reactions between solid, liq. or gaseous reactants resulting in solid prods.) on a continuous basis comprises: a high-efficiency blade-type mixer in communication with an overlying expansion chamber a continuous feed device for introducing reactants into the mixer at least one feed inlet for introducing reactants into the bottom 1/4 of the expansion chamber a continuous or discontinuous product recovery system located beneath the mixer a gas exhaust system including a dust filter and opt. at extractor fan, at the top of the expansion chamber and an annular chamber surrounding the expansion chamber and discharging into the upper part of the expansion chamber, for introducing a diluent gas. - Also claimed are (i) various prods. produced using the above appts., viz. mono- and dicalcium phosphate, powdered Mg-contg. prods. and fertilisers contg. them, and Na-contg. prods., and (ii) powdered Mg-contg. prods. soluble in neutral NH4 citrate. (18pp) - EP-133099 B Apparatus for carrying out, continuously and in dry phase, exothermic reactions and involving liberation of gas, characterized in that it comprises: -a highefficiency mixer (1) -an expansion chmaber (2) disposed above the mixer and communicating therewith -means (3) for continuously introducing one or more of the starting products into the mixer (1) -at least one spout (4) continuously introducing starting products in liquid form, situated above the mixer (1) -a system (10) for continuously or discontinuously recovering the finished product at the base of said mixer (1) -a system for exhaust of the reaction gases, in the upper part of teh expansion chamber (2). USAB- US4670225 A Appts. for continuous dry-phase exothermic reaction with liberation of gas comprises a reaction chamber below and communicating with an expansion chamber, with the chamber end walls forming the top and bottom of a reactor. A high-frequency mixer with projecting shears is in the reaction chamber at an intermediate height. - At least one solid reactant is introduced continuously into the reaction chamber above the mixer to be projected upwardly and atmoised, and a second fluid reactant is supplied above the solid and adjacent to the expansion chamber lower end. Solid reaction product is recovered at the bottom of the reaction chamber and reaction gas is exhausted from the expansion chamber upper end.