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C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
C05B1/06—Ammoniation of superphosphates
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FR564562D1922-07-071922-07-07
Device for fixing ammonia
ExpiredFR564562A
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