Patent · US Expired

Sulphur pelletizing apparatus

US4149837A · kind A · utility

19Cited by
6References
12Claims
0Family size

Inventors

Key dates

Filing dateJan 5, 1978
Grant dateApr 17, 1979
Priority date
Expiry dateJan 5, 1998

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC01B17/0237
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

An apparatus for converting molten elemental sulphur into solid pellets is described. Droplets of molten sulphur are passed through a liquid cooling medium, preferably water, the medium being maintained at a temperature range wherein annealing of the sulphur will occur. The pellets thereby obtained are hard surfaced, resistant to crushing and have low water retention in storage. In one embodiment semi-molten droplets are flattened during passage through the cooling medium by engaging deflection plates so that less flowable and more economically storable pellets are obtained.

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