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Verein Chemische & Metallurgische Prod
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Verein Chemische & Metallurgische Prod
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FR677761D1929-07-021929-07-02Procédé de préparation d'un engrais azoté, non caustique ni pulvérulent à partir de la cyanamide calcique
ExpiredFR677761A
(fr)
Procédé de préparation, à partir des phosphates naturels, d'acide phosphorique ou de phosphates susceptibles de servir d'engrais, et en particulier de phosphates d'ammoniaque et de potasse
Procédé pour la fabrication d'un engrais mixte à teneur variable d'azote et de sels fertilisants, à partir de la cyanamide de calcium, et engrais résultant de l'application de ce procédé