Method of minimizing water hammer in evaporative crystallization processes

Claim 1

IN A PROCESS FOR PRODUCTION OF AMMONIUM SULFATE BY EVAPORATIVE CRYSTALLIZATION WHICH COMPRISES CRYSTALIZING AMMONIUM SULFATE FROM A HOT AMMONIUM SULFATE MAGMA IN A CRYSTALLIZING ZONE, SEPARATING PART OF THE CRYSTALS FROM THE MAGMA AND RECOVERING SAID SEPARATED CRYSTALS, FLOWING A PORTION OF THE HOT MAGMA FROM THE CRYSTALLIZING ZONE AS A FIRST HOT MAGMA STREAM TO A WATER EVAPORATION ZONE, ADDING SULFURIC ACID INTO SAID FIRST STREAM AT A FIRST POINT, ADDING AMMONIA VAPOR INTO SAID FIRST STREAM AT A SECOND POINT DOWNSTREAM FROM SAID FIRST POINT, AND ADDING A STREAM OF AQUA AMMONIA INTO SAID FIRST STREAM AT A THIRD POINT DOWNSTREAM FROM SAID SECOND POINT, THE IMPROVEMENT WHICH COMPRISES INTRODUCING SAID STREAM OF AQUA AMMONIA INTO SAID FIRST FLOWING HOT MAGMA STREAM BY INJECTING A HIGH VELOCITY AQUA AMMONIA STREAM INTO CONCURRENT FLOW WITH A CONFINED SECOND STREAM OF HOT MAGMA, THE VELOCITY OF FLOW OF SAID AQUA AMMONIA STREAM BEING SUCH THAT IT INDUCES FLOW FROM SAID FIRST HOT MAGMA STREA INTO CONFLUENCE WITH SAID SECOND CONFINED STREAM OF HOT MAGMA, AND DISCHARGING A RESULTANT COMBINED STREAM INTO SAID FIRST FLOWING HOT MAGMA STREAM, SAID FIRST MAGMA STREAM BEING OUT OF CONTACT WITH, BUT SURROUNDING, SAID CONFINED SECOND STREAM OF HOT MAGMA, EXCEPT FOR THE CONTACT OCCURING AT THE POINT OF INITIAL CONFLUENCE.