Method for removing acidic and salt impurities from an aqueous c

Details Method for removing acidic and salt impurities from an aqueous c Method for removing acidic and salt impurities from an aqueous c

1995-05-31

1997-11-11

Manoharan, Virginia

Distillation: processes, separatory

With disparate physical separation

Utilizing solid sorbent

159 471, 159DIG10, 230 77, 230 80, 230 81, 230DIG25, 210664, 558277, B01D 300, C07C 6808

Patent

active

056859570

ABSTRACT:
Acidic and salt impurities are removed from a condensed phase obtained from dimethyl carbonate synthesis by obtaining the condensed phase from the effluent of a reactor in which carbon monoxide, oxygen and methanol are reacted to form dimethyl carbonate, the condensed phase containing acid and salt impurities, and partially evaporating the condensed phase in an evaporator thereby preparing an evaporated stream substantially free of impurities and a residual bottom stream.

REFERENCES:
patent: 4625044 (1986-11-01), Curnutt
patent: 5344954 (1994-09-01), Schon et al.
patent: 5359118 (1994-10-01), Wagner et al.
patent: 5440066 (1995-08-01), Buysch et al.

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