C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
252/11
C01B 39/32 (2006.01)
Patent
CA 1225387
ABSTRACT OF THE DISCLOSURE Type L zeolites are prepared by a nucleation tech- nique wherein a first aqueous mixture of water, a sili- ca source, an alumina source, an alkali metal hydroxide, and optionally a source of organic template cation is prepared, homogenized and aged at a tempera- ture and for a time sufficient so as to initiate and establish crystallization. This first aqueous mixture is added to a second freshly prepared homogenized aqueous mixture of substantially the same composition as the first mixture, which is then maintained at ele- vated temperatures sufficient to ensure crystalliza- tion of the desired zeolite phase.
465895
Borden Ladner Gervais Llp
Exxon Research And Engineering Company
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