Chemical apparatus and process disinfecting – deodorizing – preser – Physical type apparatus – Means separating or dissolving a material constituent
Patent
1983-03-10
1988-06-21
Richman, Barry S.
Chemical apparatus and process disinfecting, deodorizing, preser
Physical type apparatus
Means separating or dissolving a material constituent
239424, 422224, 422257, 423352, B05B 114, C01C 102
Patent
active
047524529
ABSTRACT:
The invention is a process and apparatus useful for preparing an aqueous ammonia solution at a temperature below the boiling point thereof by single stage dilution of anhydrous ammonia with water. In the invention, an anhydrous ammonia fluid comprising ammonia vapor is mixed with water to provide an aqueous ammonia fluid at a first temperature above the boiling point of said aqueous ammonia fluid, the aqueous ammonia fluid is cooled to a second temperature above the boiling point of said aqueous ammonia fluid, and the cooled aqueous ammonia fluid is then indirectly contacted with liquid anhydrous ammonia to further cool said aqueous ammonia fluid to a temperature below its boiling point and thereby heat the liquid anhydrous ammonia to vaporize at least a portion thereof. The heated anhydrous ammonia fluid is utilized in the process of this invention to provide the aqueous ammonia fluid. An apparatus for carrying out the above process is also described, including a novel mixing nozzle for use in mixing the anydrous ammonia fluid with water to provide an aqueous ammonia fluid at a first temperature above the boiling point of said aqueous ammonia fluid.
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Harbolt Bruce A.
Murata Perry L.
Gzybonski Michael S.
Lambert Howard R.
Richman Barry S.
Sandford D.
Union Oil Company of California
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