Process for the preparation of ferrierite and its use as...

Details Process for the preparation of ferrierite and its use as... Process for the preparation of ferrierite and its use as...

C - Chemistry, Metallurgy

10

G

252/12, 196/96

C10G 45/64 (2006.01) B01J 29/65 (2006.01) C01B 39/44 (2006.01)

Patent

CA 1291979

A B S T R A C T PROCESS FOR THE PREPARATION OF FERRIERITE AND ITS USE AS DEWAXING CATALYST (CARRIER) Process for the preparation of ferrierite which comprises maintaining an aqueous starting mixture containing at least one silicon compound, at least one aluminium compound, at least one alkali metal (M) compound and at least one organic nitrogen compound (RN) selected from the group consisting of piperidine, pyridine, alkyl-substituted piperidines and - pyridines, piperazine, 4-picoline and 4-picoline-N-oxide, at an elevated temperature until crystalline ferrierite has formed, in which starling mixture the various compounds are present in the following molar ratios, the aluminium-, silicon- and alkali metal- compounds being calculated on basis of the oxides, S1O2 : M2O - 7.3 to 15.6, S1O2 : A12O3 - 15.6 to 35.7, H2O : S1O2 - 5 to 500, and RN : S1O2 - 0.05 to 1Ø The ferrierite catalyst precursor thus prepared can after conversion into the hydrogen form be used as catalyst (carrier) for dewaxing hydrocarbon oils (e.g. lubricating base oils).

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