Lignosulfonate as granulation aid-particle hardener

Details Lignosulfonate as granulation aid-particle hardener Lignosulfonate as granulation aid-particle hardener

1987-08-10

1988-05-10

Lander, Ferris H.

Chemistry: fertilizers

Processes and products

Inorganic material

71 63, 71 6405, 71 6413, 423162, C05D 900

Patent

active

047432896

ABSTRACT:
An improved process for more economically and effectively producing crystalline by-product ammonium sulfate (A/S) by granulating crystalline by-product A/S feedstock and recycle material together with an A/S-sulfuric acid-granulation aid-particle hardener solution and ammonia to bind the crystals together. Underlying the gist of the improvement concept is the identification of a low-cost readily available lignosulfonate by-product of the pulp and paper industry which, when used in predetermined and relatively small proportions, has now been discovered to be very satisfactory as a granulation aid-particle hardener for granulating such by-product ammonium sulfate crystals. Use of lignosulfonate instead of alum, as is currently practiced, reduces the manufacturing cost of granulating by-product ammonium sulfate by about as much as one dollar per short ton of product.

REFERENCES:
patent: 4058389 (1977-11-01), Piccolo et al.
patent: 4589904 (1986-05-01), Harrison et al.

Affiliated with

Also associated with

Rating

Lignosulfonate as granulation aid-particle hardener does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lignosulfonate as granulation aid-particle hardener, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lignosulfonate as granulation aid-particle hardener will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1318489