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Process for the manufacture of ammonium perchlorate and sodium ammonium phosphate

  • US 3,154,380 A
  • Filed: 10/05/1961
  • Issued: 10/27/1964
  • Est. Priority Date: 10/05/1961
  • Status: Expired due to Term
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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