Elimination of foam in foaming chemical reactions and apparatus therefor

Claim 1

A METHOD OF REACTING REACTANTS, WHICH REACT WITH THE LIBERAL PRODUCTION OF FOAM AT THE SURFACE OF THE PRODUCTS OF REACTION, COMPRISING AN ACID AND A PHOSPHATIC MATERIAL, WITH A REDUCED RELEASE OF FOAM AT THE SURFACE OF THE PRODUCTS OF REACTION, THAT COMPRISES ESTABLISHING A POOL CONTAINING THE PRODUCTS OF REACTION, ESTABLISHING ANOTHER MASS COMPRISED OF AT LEAST ONE SAID REACTANT, SAID POOL AND MASS BEING INTERCONNECTED IN THE LOWER LEVELS OF THE POOL OF SAID PRODUCTS, AND FORCING THE SAID MASS INTO THE POOL OF PRODUCTS THROUGH SAID INTERCONNECTION UNDER RELATIVELY HIGH HYDROSTATIC HEAD WHICH IS FURNISHED BY THE REACTION MASS IN THE VAT AT SUCH VELOCITY THAT FLOW THROUGH THE INTERCONNECTION IS FROM THE MASS INTO THE POOL, AND SIMULTANEOUSLY INJECTING ANOTHER REACTANT INTO SAID POOL IN REACTIVE PROXIMITY TO SAID CORCED MASS, SO THAT THE REACTION TAKES PLACE IN THE POOL AND MAINLY IN THE LOWER LEVELS THEREOF.