Distillation: processes – separatory – With chemical reaction – Including step of adding catalyst or reacting material
Patent
1984-10-26
1987-04-07
Bashore, S. Leon
Distillation: processes, separatory
With chemical reaction
Including step of adding catalyst or reacting material
203 49, 203 80, 203 87, 203 98, 203 99, 203DIG19, 203 89, 202186, 202205, 202236, 568854, 568869, 159 49, 159 5, B01D 334, B01D 122
Patent
active
046558799
ABSTRACT:
An improved process for purification of glycerol obtained from natural sources comprising alkalizing a glycerol-containing crude mixture in the presence of air for oxidation, evaporating the mixture in a thin-layer evaporator with redistillation of the residue, rectification and reevaporation in a packed column characterized by low-pressure-loss plates with a falling-film evaporator designed for internal and external partial condensation and to separate off unwanted constituents of the mixture, bleaching the product with activated carbon and separating the bleach in known manner.
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Stromquist et al., "C. P. Glycerol by Ion Exchange", Industrial and Engineering Chemistry, vol. 53, pp. 1065-1070 (1951).
Ziels, "Recovery and Purification of Glycerol", The Journal of the American Oil Chemists Society, vol. 33, pp. 556-565 (1956).
Chemical Abstract 72:1970 42752p "Preparation of Alpha-Diamines from Epoxides".
Brockmann Rolf
Jeromin Lutz
Johannisbauer Wilhelm
Meyer Helmut
Michel Otto
Bashore S. Leon
Greenfield Mark A.
Henkel Kommanditgesellschaft auf Aktien
Manoharan V.
Millson Jr. Henry E.
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