High-magnesium ammonium polyphosphate solutions

Details High-magnesium ammonium polyphosphate solutions High-magnesium ammonium polyphosphate solutions

1974-10-11

1976-01-20

Hart, Charles N.

Chemistry: fertilizers

Processes and products

Inorganic material

71 64C, 21 605R, 252384, 423306, C05B 700

Patent

active

039334597

ABSTRACT:
A stable ammonium polyphosphate fertilizer solution having a relatively high amount of magnesium is prepared by mixing aqueous ammonia with wet-process superphosphoric acid in a reaction zone to give a P.sub.2 O.sub.5 /N weight ratio within the range 3.6-4.0. The temperature of the reaction mixture is preferably maintained at about 50.degree.-70.degree.C. but the product solution should be cooled to about 25.degree.-35.degree.C. prior to storage. The product solution shows relatively low corrosion toward carbon steel storage tanks; however, to further reduce corrosion, the solution is preferably stored under a layer of liquid paraffin hydrocarbons.

REFERENCES:
patent: 2950961 (1960-08-01), Striplin et al.
patent: 3305299 (1967-02-01), Cohen et al.
Search copy Def. Pub.; Jones, Def. Pub. search copy of serial No. filed June 21, 1971, Def. Pub. No. T900,026.

Affiliated with

Also associated with

Rating

High-magnesium ammonium polyphosphate solutions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High-magnesium ammonium polyphosphate solutions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-magnesium ammonium polyphosphate solutions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1693904