Production of potassic chemicals and fertilizers, viz. potassium nitrate, potassium sulphate, mono potassium phosphate, potassium ammonium sulphate, potassium ammonium phosphate etc. by recovering potassium from sea bittern
Recovery of potassium directly from sea bittern, without requiring production of mixed salt
Can be applied to other potassic feed-stocks, viz., biomass ash/char, seaweed sap etc.
Efficient K-recovery (ca. 75%).
Safe and environmentally benign process
Know-how licensed & practiced commercially
Potential client base:
Major sea salt producers in India & abroad
Effluent contains <50 ppm of tartaric acid. May be discharged following protocols related to marine chemicals.
The technology has been licensed to M/s Laxmi Industries, Madurai, Tamil Nadu.
Client produces potassium nitrate commercially
Sea bittern, lime, magnesia, nitric acid, sulphuric acid etc.
Generic equipment required in chemical plant, viz., reactors, settlers, filter press, dryers etc.
Broadly, for a 1 tpd plant, ₹1-1.5 crore would be the initial investment towards plant and machinery with a payback period of < 3 years.
Know-how transfer document would be made available on specific request.
