Process for improving the wettability of natural or...

Details Process for improving the wettability of natural or... Process for improving the wettability of natural or...

B - Operations, Transporting

01

J

252/12

B01J 29/06 (2006.01) C01B 39/02 (2006.01) C11D 3/00 (2006.01) C11D 3/12 (2006.01)

Patent

CA 1037015

ABSTRACT OF THE DISCLOSURE The present invention provides a process for improving the wettability of natural or synthetic zeolites, which comprises treating said zeolites with thorough mixing with an aqueous sol- ution of at least one polycarboxylic compound selected from a polyelectrolyte polycarboxylic acid and a completely or partially neutralized polycarboxylate containing at least 40 primary mole percent of carboxyl or carboxylate groups and having an average degree of polymerization (numerical average) between 3 and 5000 at a temperature between 0 and 100°C for at least five minutes, the aqueous solution being used in a concentration between approximately 2 and approximately 800 g of polycarboxylic com- pound per litre and in an amount to provide approximately 0.01 to 10 parts by weight of polycarboxylic compound per part by weight of zeolite, the hydrophillic zeolite so obtained when required being either dried or separated from the aqueous phase.

212804

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