Dimitris Ioannis Collias,Jane Ellen Godlewski,Juan Esteban Velasquez
申请号：
US16436956
公开号：
US10723688B2
申请日:
2019.06.11
申请国别(地区):
US
年份:
2020
代理人:
摘要：
Methods for making acrylic acid, acrylic acid derivatives, or mixtures thereof by contacting a stream containing hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof with either an active catalyst containing an amorphous and partially-dehydrated phosphate salt or a precursor catalyst containing a crystalline phosphate salt in a reactor with a low corrosion rate are provided.
