Process for producing potassium silicate fertilizer and...

Details Process for producing potassium silicate fertilizer and... Process for producing potassium silicate fertilizer and...

C - Chemistry, Metallurgy

05

D

71/38, 71/57

C05D 1/00 (2006.01) C01B 33/32 (2006.01)

Patent

CA 1125534

ABSTRACT OF THE DISCLOSURE A process for producing a citric acid soluble potassium silicate fertilizer comprises a step for kneading a mixture con- sisting essentially of potassium carbonate, fly ash, pulverized coal, other necessary starting materials and a caustic potash solution as a binder and then granulating the kneaded mixture, a step for drying the granulated product to a nearly absolutely dry state, and a step for calcining the dried granular product, whereby a chemical reaction takes place between the potassium and the silicon present in fly ash to convert them into a citric acid soluble potassium silicate. An apparatus for practicing the processes mentioned above comprises a plurality of continuous quantitat? ??s, a continuous kneader, an extruder for form- ing ??? ? fluid dryer, a fluid calcining furnace, and a cooling device for cooling calcined product.

337070

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