Patent · US Expired

Prilling method

US7175684B1 · kind B1 · utility

6Cited by
25References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 21, 1999
Grant dateFeb 13, 2007
Priority date
Expiry dateDec 21, 2019

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC05G5/12
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

A prilling method comprising the steps of: providing a molten first component, mixing at least a second component with the molten first component, reacting the components to form a shear-thinnable mixture; and prilling the shear-thinnable mixture wherein the prilling comprises mechanically agitating in the prill head to shear thin the shear-thinnable mixture sufficiently to permit prilling. The inventive method can be used to produce fertilizer product comprising ammonium sulfate nitrate.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.