Method and apparatus for production of aqua ammonia

Claim 1

A METHOD FOR THE PRODUCTION OF AQUA AMMONIA FROM AMMONIA AND WATER WHICH COMPSISES THE STEPS OF MAINTAINING A BODY OF WATER IN A FIRST ZONE HAVING A VAPOR SPACE ABOVE SAID BODY, CONTINUOUSLY PUMPING WATER FROM SAID BODY TO A MIXING ZONE; IN A FIRST STAGE, CONTINUOUSLY PASSING A FIRST PORTION OF AMMONIA TO SAID MIXING ZONE AND THEREBY FORMING HOT AQUA AMMONIA, CONTINUOUSLY PASSING SAID HOT AQUA AMMONIA DIRECTLY FROM SAID MIXING ZONE INTO SAID VAPOR SPACE, PASSING SAID HOT AQUA AMMONIA AS A THIN FILM DOWN A SURFACE DEFINING THE PERIPHERY OF SAID VAPOR SPACE INTO SAID BODY, WHEREBY SAID BODY OF WATER THEREAFTER CONTAINS ABSORBED AMMONIA, PASSING A FILM OF COOL WATER IN INDIRECT HEAT EXCHANGE RELATIONSHIP WITH SAID AQUA AMMONIA FILM AND THEREBY COOLING SAID AQUA AMMONIA FILM; IN A SECOND STAGE, AFTER ALL OF SAID FIRST PORTION OF AMMONIA HAS BEEN ADDED TO SAID MIXING ZONE AND SAID BODY OF WATER, CONTINUOUSLY PASSING A SECOND PORTION OF AMMONIA TO SAID MIXING ZONE AND DISCONTINUING FLOW OF SAID HOT AQUA AMMONIA DIRECTLY TO SAID VAPOR SPACE