Preparation of binderless 3A adsorbents

Details Preparation of binderless 3A adsorbents Preparation of binderless 3A adsorbents

1981-11-16

1984-01-03

Dees, Carl F.

Catalyst, solid sorbent, or support therefor: product or process

Zeolite or clay, including gallium analogs

And additional al or si containing component

425112, 425328, 502 10, B01J 2018

Patent

active

044241445

ABSTRACT:
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.

REFERENCES:
patent: 3386802 (1968-06-01), Michalko
patent: 3679604 (1972-07-01), Lee et al.
patent: 3785122 (1974-01-01), Yatsurugi et al.
patent: 3969276 (1976-07-01), Rosback

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