Process for encapsulating particles by in-situ formation of a me

Details Process for encapsulating particles by in-situ formation of a me Process for encapsulating particles by in-situ formation of a me

1971-05-10

1977-03-22

Smith, Ronald H.

Chemistry: fertilizers

Processes and products

Organic material-containing

71 63, 71 64E, 427180, 427201, 427212, 427215, 427343, C05C 900

Patent

active

040134423

ABSTRACT:
Particles, such as fertilizer, are encapsulated with a metal carbonate coating by initially coating the particles with a metallic hydroxide, metallic oxides or mixtures thereof and subjecting the coated particles to an atmosphere containing carbon dioxide so as to convert the metallic compounds to the corresponding carbonate. Inert materials such as powdered linestone can be included with the coating.

REFERENCES:
patent: 2644769 (1953-07-01), Robinson
patent: 2725397 (1955-11-01), Dijksman et al.
patent: 3041159 (1962-06-01), Smith
patent: 3148945 (1964-09-01), Griffith et al.
patent: 3362846 (1968-01-01), Lee et al.

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