Preparation of binderless 3a adsorbents

Details Preparation of binderless 3a adsorbents Preparation of binderless 3a adsorbents

B - Operations, Transporting

01

J

182/10, 252/33

B01J 29/06 (2006.01) B01D 15/04 (2006.01) B01J 20/18 (2006.01) C07C 7/13 (2006.01)

Patent

CA 1181387

Abstract of the Disclosure Shaped products of a 3A zeolite are formed either as beads or extrudates without any binder remaining. In the case of beads, a 4A powder is mixed with a caustic solution and a metakaolin clay binder to form beads. The beads are converted to a binderless 4A product which is given a partial calcium exchange followed by a potassium exchange to obtain the desired 3A binderless bead. The 3A extrudates are produced by forming binderless 4A extrudates from a 4A powder and clay mixture that contains 40-60% by weight clay. These binderless 4A extrudates are then given a potassium exchange. Both the beads and the extrudates can be used to dry a mixture of a hydrocarbon compound such as ethylene and water.

411628

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