| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 568492000 | Purification or recovery | 6 |
| 20110021846 | PROCESS FOR ABSORBING METHYLACROLEIN WITH IONIC LIQUID - Disclosed is a process for absorbing methylacrolein, characterized in that it absorbs methylacrolein by an absorbent comprising an ionic liquid. The absorbent can absorb methylacrolein effectively, and it is easy to be separated from methylacrolein, regenerated and recycled. It is a green absorbent. The technique is a green methylacrolein absorbing and separating technique. | 01-27-2011 |
| 20120116129 | PROCESS FOR PURIFYING AQUEOUS GLYOXAL SOLUTIONS - A process for purifying an aqueous glyoxal solution comprising at least one acid by extractive acid removal, comprising | 05-10-2012 |
| 20140024861 | Catalyst For Reducing Selectively Saturated Aldehyde And A Process For Preparing The Catalyst - [Problem] Catalyst for use in selective reduction of propionaldehyde in acrolein and/or acrylic acid and/or acrylonitrile containing propionaldehyde and/or propionic acid and/or propionitrile at low concentration. In particular, a novel catalyst for selectively reducing propionaldehyde from acrolein containing the propionaldehyde. | 01-23-2014 |
| 20160068460 | Aldehyde Production Process With Multi-Stage Condensation - A hydroformylation system for making aldehyde by reacting olefin with synthesis gas by way of hydroformylation is improved by multi-stage condensation of gaseous reactor effluent for providing liquid feed to a gas-liquid contact zone. The process provides for condensing and separating the gaseous reactor output stream in a plurality of successive condenser stages into gaseous condenser output streams and liquid condenser output streams having differing temperatures and feeding the recovered liquid to the gas-liquid contact zone to improve olefin recovery by stripping. | 03-10-2016 |
| 20160107971 | HEAT MANAGEMENT PROCESS - A method of managing the heat of a chemical reaction process. | 04-21-2016 |
| 20190144366 | USE OF A LEWIS DONOR SOLVENT TO PURIFY A FEEDSTOCK THAT CONTAINS ETHANOL, ACETALDEHYDE, AND IMPURITIES | 05-16-2019 |
