Production of silica gel and an adsorbent, absorbent product fro

Details Production of silica gel and an adsorbent, absorbent product fro Production of silica gel and an adsorbent, absorbent product fro

1983-12-16

1986-01-21

Metz, Andrew H.

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

Zeolite or clay, including gallium analogs

Clay

204133, 502 82, 502 81, 502233, 502408, B01J 2012, B01J 2010

Patent

active

045657947

ABSTRACT:
Sericitic clays can be treated so as to produce silica gel and an adsorbent, absorbent product capable of being utilized in many different applications. In treating such clays to produce such products, finely ground clay particles are digested with an alkali so as to produce an alkali silicate solution which is separated from the remaining inorganic material. The latter is digested with an acid so as to remove alumina values. The particles remaining should then be washed and dried prior to being used as an adsorbent, absorbent material. The alkali silicate solution is preferably subjected to electrolysis to bleach contaminants within the solution and then treated with an acid so as to gel the silicate. After the gel is formed, the gel and the solution are neutralized. The gel is then separated and dried.

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patent: 3838192 (1974-09-01), Bertorelli et al.
patent: 4235751 (1980-11-01), Del Pesco

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