Glycerol and spent lye clarification - Illinois Institute of Technology
Glycerol and spent lye clarification - Illinois Institute of Technology
Glycerol and spent lye clarification - Illinois Institute of Technology
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Metallic salts, such as sulphate <strong>of</strong> Iron<br />
<strong>and</strong> altiminum, were used in the early stages <strong>of</strong><br />
<strong>lye</strong> treatment for coagrolatlng <strong>and</strong> purifying<br />
agents, as in the process <strong>of</strong> L, M, Brochon, in<br />
1882 <strong>and</strong> J. P. Battershall in 1883 <strong>and</strong> later<br />
by Van Ruyrabeke in 1891. The Van Ruymbeke<br />
process for recovering the glycerol from still<br />
fats was an important step in 1894. In 1904<br />
Garrigue developed his process for eliminating<br />
volatile fatty acids previous to distillation.<br />
Domeir <strong>and</strong> Hagomann, in 1890 first used<br />
the closed aalt separator which was later<br />
applied to vacuum evaporators by Foster in<br />
1899. 0. Laist, in 1893 applied the air<br />
condenser to glycerol stills, but the first<br />
use <strong>of</strong> vacuum had been in 1882 in connection<br />
with the apparatus <strong>of</strong> Arm<strong>and</strong>y. In 1891 Van<br />
Ruymbeke combined the use <strong>of</strong> the high vacuTim<br />
with heating still by means <strong>of</strong> saturated<br />
steam; in 1894 applied the injection <strong>of</strong> exp<strong>and</strong>-<br />
ed <strong>and</strong> reheated steam to glycerine stills.
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