Controlled release formation for urea

Details Controlled release formation for urea Controlled release formation for urea

1985-07-08

1988-06-21

Lander, Ferris H.

Chemistry: fertilizers

Processes and products

Organic material-containing

71 6411, C05C 900

Patent

active

047523174

ABSTRACT:
A hydrolyzed lignosulfonate-acrylonitrile graft copolymer matrix providing slow release solubility to urea fertilizer. The hydrolysis of the graft copolymer of lignosulfonate and acrylonitrile may be carried out in the presence of a caustic in situ during the urea prill manufacturing process or in a prehydrolysis step with subsequent use of the hydrolyzed copolymer in the urea prill manufacturing process to provide the controlled release formulation for urea.

REFERENCES:
patent: 3697245 (1972-10-01), Dilday
CA 96(18) 145844v, "Drilling Fluid Composition", Kelley et al., 1982.
CA 93(24) 222092r, "Study on . . . Monomers", Chen et al., 1980.

Affiliated with

Also associated with

Rating

Controlled release formation for urea does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Controlled release formation for urea, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Controlled release formation for urea will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-927871