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Rikkihappo Oy
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Rikkihappo Oy
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Publication of FR2028521A1publicationCriticalpatent/FR2028521A1/en
C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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Chemical & Material Sciences
(AREA)
Organic Chemistry
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Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Fertilizers
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Abstract
Prepn. is effected heating (preferably for 15 mins - 6hrs. at a temperature between the boiling point of H3PO4 and 600 degrees C), either with or without the presence of additives such as potassium salts, B, Cu, Mn, Zn, Mo and S compounds.
FR7001397A1969-01-171970-01-15Preparation of p-k-fertilisers from phospho - ric acid and mica minerals
WithdrawnFR2028521A1
(en)
Analogous process for the preparation of 5-substituted 5,10-dihydro-11H-dibenzo (b, e) (1,4) diazepin-11-ones or 11-substituted 5,11-dihydro-6H-pyrido (2,3-b ) (1,4) benzodiazepin-6-ones or acid addition salts thereof.