Chemistry: fertilizers – Processes and products – Inorganic material
Patent
1983-06-10
1985-08-27
Schor, Kenneth M.
Chemistry: fertilizers
Processes and products
Inorganic material
71 34, 71 43, 71 6408, 423313, 423318, 423167, C05B 700, C05B 1110
Patent
active
045376158
ABSTRACT:
Processes and compositions of matter are disclosed for the production of liquid fertilizers wherein wastewater from a phosphorus smelting furnace is incorporated in liquid fertilizer processes. The wastewater replaces water evaporated and the wastewater dissolves fertilizer salts. A serious water pollution problem is avoided when wastewater is incorporated in liquid fertilizers. The invention discloses a process for making orthophosphate suspension fertilizer wherein impure phosphoric acid is neutralized in the condensing system, water from the condensing system is bled off, and a suspending clay is added to produce orthophosphate suspension fertilizer. In this process, phosphorus sludge made at phosphorus furnaces is used to produce suspension fertilizer, and wastewater from phosphate smelting furnaces is recovered. New compositions of matter are disclosed. A process is disclosed for making phosphoric acid with low impurities content wherein phosphorus sludge is burned to make impure orthophosphoric acid and the impure acid is recycled to an agglomerating step in a process for making elemental phosphorus.
REFERENCES:
patent: T986001 (1979-09-01), Jones et al.
patent: 3084029 (1963-04-01), Barber et al.
patent: 3202744 (1965-08-01), Barber et al.
patent: 3428430 (1969-02-01), Megar et al.
patent: 3560191 (1971-02-01), Kohn et al.
patent: 4203957 (1980-05-01), Medves
patent: 4372929 (1983-02-01), Barber
patent: 4383847 (1983-05-01), Barber
James C. Barber and Associates Inc.
Schor Kenneth M.
LandOfFree
Fertilizer from phosphorus furnace waste stream does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fertilizer from phosphorus furnace waste stream, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fertilizer from phosphorus furnace waste stream will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2000184