Process for the manufacture of ammonium perchlorate and sodium ammonium phosphate
First Claim
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1. A CONTINUOUS PROCESS FOR THE PREPARATION OF AMMONIUM PERCHLORATE AND SODIUM AMMONIUM PHOSPHATE IN TWO DISTINCT STAGES WHICH COMPRISES DISSOLVING AMMONIA AND PHOSPHORIC ACID IN AN AQUEOUS SOLUTION OF SODIUM PERCHLORATE, ADJUSTING THE SOLUTION OBTAINED TO A PH BETWEEN 3.5 AND 6.8, TO FORM IN A FIRST STAGE A PRECIPITATE OF AMMONIUM PERCHLORATE IN A MOTHER LIQUOR, SEPARATING AT ROOM TEMPERATURE THE AMMONIUM PERCHLORATE THUS FORWARD, ADDING AMMONIA TO THE MOTHER LIQUOR UNTIL THE PH IS BETWEEN 7.5 AND 9.5 TO PRECIPITATE SODIUM AMMONIUM PHOSPHATE ALL ALONE IN A SECOND STAGE AND RECOVERING THE PHOSPHATE.
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1 Claim
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1. A CONTINUOUS PROCESS FOR THE PREPARATION OF AMMONIUM PERCHLORATE AND SODIUM AMMONIUM PHOSPHATE IN TWO DISTINCT STAGES WHICH COMPRISES DISSOLVING AMMONIA AND PHOSPHORIC ACID IN AN AQUEOUS SOLUTION OF SODIUM PERCHLORATE, ADJUSTING THE SOLUTION OBTAINED TO A PH BETWEEN 3.5 AND 6.8, TO FORM IN A FIRST STAGE A PRECIPITATE OF AMMONIUM PERCHLORATE IN A MOTHER LIQUOR, SEPARATING AT ROOM TEMPERATURE THE AMMONIUM PERCHLORATE THUS FORWARD, ADDING AMMONIA TO THE MOTHER LIQUOR UNTIL THE PH IS BETWEEN 7.5 AND 9.5 TO PRECIPITATE SODIUM AMMONIUM PHOSPHATE ALL ALONE IN A SECOND STAGE AND RECOVERING THE PHOSPHATE.
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Current AssigneeHideo Arita
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Original AssigneeHideo Arita
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InventorsHIDEO ARITA
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Application NumberUS04/143,037Time in Patent Office1,118 DaysField of SearchUS Class Current423/306CPC Class CodesC01B 11/185 Ammonium perchlorateC01B 25/28 Ammonium phosphatesC01B 25/301 Preparation from liquid ort...C01B 25/405 of ammonium
