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1986-12-01
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1977-08-09
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1977-08-09
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1986-04-11
PROCESS FOR THE MANUFACTURE OF WET PHOSPHORIC ACID FROM PHOSPHATE ROCK
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1977-11-01
PROCESS FOR THE MANUFACTURE OF PHOSPHORIC ACID FROM MINERAL PHOSPHATE
YU43296B
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1989-06-30
Process for the purification of phosphoric acid obtained by the wet method
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1980-05-06
PROCESS FOR THE PRODUCTION OF PHOSPHORIC ACID TRIESTERES
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1981-04-01
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1985-12-16
PROCEDURE FOR THE PRODUCTION OF PENTA-ERITIC ESTERS DERIVED FROM PHOSPHORIC ACID
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1981-03-31
PROCESS OF PREPARATION OF PHOSPHORIC ACID BY WET
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1982-07-27
IMPROVED PROCEDURE FOR THE PURIFICATION OF WET PROCESSED PHOSPHORIC ACID
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1981-11-16
A PROCEDURE FOR THE PRODUCTION OF 2-CETO-L-GULONIC ACID
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1989-08-08
IMPROVED METHOD FOR THE PRODUCTION OF PHOSPHORIC ACID FROM MINERAL OF LAMINATED PHOSPHATE
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1978-08-08
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1978-04-11
PROCESS FOR THE PREPARATION OF PHOSPHORIC ACID
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1981-07-14
PRODUCTION PROCESS OF WET PHOSPHORIC ACID
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1985-05-23
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1989-06-15
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1980-12-01
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1980-03-18
PROCESS FOR THE PRODUCTION OF MONOCHALIC PHOSPHATE AND PHOSPHORIC ACID
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1977-09-20
CONTINUOUS PROCESS FOR THE MANUFACTURE OF PHOSPHORIC ACID BY WET
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1985-05-16
PROCEDURE FOR THE PRODUCTION OF PHOSPHORIC ACID ESTERS
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1986-07-03
IMPROVED METHOD FOR THE PRODUCTION OF PHOSPHORIC ACID
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1985-09-17
METHOD IMPROVEMENTS FOR PURIFICATION OF PHOSPHORIC ACID