Process for the separation of colloidal barium phosphate or colloidal barium sodium phosphate
AssigneeShell Oil Company
InventorsRudolf J. Wijngaarden, Kees Latjes, Jan Van Schaik
Life of this patent
Estimating the term…
Abstract
The invention relates to a process for the separation of colloidal barium phosphate or colloidal barium sodium phosphate, used as a heterogeneous catalyst in the alkoxylation of an active hydrogen containing organic compound, from the alkoxylated product, which process comprises contacting the alkoxylated product with an amount of water sufficient to break the colloidal state of the barium phosphate or barium sodium phosphate, and collecting the phosphate.
Claims7
A process for the separation of a colloidal barium phosphate or colloidal barium sodium phosphate, heterogeneous catalyst in the alkoxylation of an active hydrogen containing organic compound with an alkylene oxide reactant, from the alkoxylated product, which process comprises contacting at temperature in the range of from about 40.degree. C. to about 95.degree. C. the alkoxylated product with an amount of water sufficient to break the colloidal state of the barium phosphate or barium sodium phosphate, and collecting the phosphate.
Dependencies are inferred from the claim text.