A broad and simple method permitted halide ions in quaternary heteroaromatic and ammonium salts to be exchanged for a variety of anions using an anion exchange resin (A− form) in non-aqueous media. The anion loading of the AER (OH− form) was examined using two different anion sources, acids or ammonium salts, and changing the polarity of the solvents. The AER (A− form) method in organic solvents was
Method for Separating Hydrogen Chloride and Phosgene
申请人:Wolfert Andreas
公开号:US20070293707A1
公开(公告)日:2007-12-20
The invention relates to a process for separating hydrogen chloride and phosgene, which comprises bringing a mixture of hydrogen chloride and phosgene into contact with an ionic liquid in which at least part of the hydrogen chloride is dissolved in a step a) and then separating off the hydrogen chloride dissolved in the ionic liquid in a step b).
Process for the synthesis of carbamate derivatives from amine compounds, alcohols and CO2 in the presence of ionic liquids and optionally in the presence of a base.