Phosphoric Acid, Phosphates & Fertilizers Experts

http://www.societechimiquedefrance.fr/IMG/pdf/c_5_000_000_.vfx2_sav.pdf

HISTOIRE DE LA FERTILISATION PHOSPHATÉE (1762-1914)

La première mention d’utilisation de produits phosphatés dans un texte scientifique se trouve probablement dans Les Eléments d’agriculture, en 1762, de Duhamel du Monceau. Il indique que les déchets d’utilisation artisanale d’os et d’ivoire Continue reading →

Virtually all of the economic sources of potassium occur in sedimentary salt beds remaining after the evaporation of ancient seas and lakes. World reserves of such potassium-bearing deposits are immense and they total about 250 billion tons of K_{2 Continue reading →}

Phosphate Rock
 
Phosphate rock is the only economical source of phosphorus for production of phosphate fertilizers and phosphate chemicals. Most of the world phosphate rock reserves are widely distributed marine phosphorite deposits.
Phosphate ores were first mined in relatively Continue reading →

Sodium Nitrate

The world’s first commercial nitrogen fertilizer was sodium nitrate mined from natural deposits in Chile. It was imported into Europe and North America from about 1830 onwards. During the 1920s sodium nitrate imports from Chile were still a Continue reading →