Sulphur-clay prills

Details Sulphur-clay prills Sulphur-clay prills

1981-01-29

1983-07-19

Lander, Ferris H.

Chemistry: fertilizers

Processes and products

Inorganic material

71 6411, 71903, 71904, 10628732, C05G 304

Patent

active

043941508

ABSTRACT:
Substantially spherical, water-degradable, sulphur clay particles or prills are provided; the particles are formed by passing a mixture of molten sulphur and a particulate swelling clay through a plurality of orifices and into an aqueous solution of a water soluble electrolyte salt, maintained at a temperature effective to cool the mixture below its solidification temperature. An improved apparatus is also provided in which a high constant static head of molten material is let down to a low static head whereby molten material at low velocity falls under gravity into the aqueous electrolyte salt solution.

REFERENCES:
patent: 1378084 (1921-05-01), Bacon et al.
patent: 3840232 (1974-10-01), Ludwig et al.
patent: 4133669 (1979-01-01), Caldwell et al.
NFSA, Liquid Fertilizer Manual, 1967, pp. 9-2, 9-3.

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