Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs
Patent
1991-02-20
1993-05-18
Dees, Carl F.
Catalyst, solid sorbent, or support therefor: product or process
Zeolite or clay, including gallium analogs
502401, 502411, 502413, 502414, 55524, B01J 2000, B01J 2030
Patent
active
052121313
ABSTRACT:
A filter for removing contaminants from a gas contains a support material and, deposited on the support material, a first component which is an oxide, a hydroxide or a mixture of an oxide and hydroxide of Al, Si, Ti, Fe or Zn, containing at least about 0.5% by weight of water. The first component is deposited onto the filter preferably from a colloidal sol solution of a compound of the metal of that component. The first component acts as an adsorbent to remove contaminants from a gas, such as air. The filter may contain a second component, such as an alkali metal, alkaline earth metal, permanganate(s), or a mixture thereof. The filter may also contain a third component, such as an adsorbent, in the form of separate particles, e.g., activated charcoal, potassium permanganate, activated alumina, optionally treated with an alkali metal or alkaline earth metal compound(s), zeolites, and alumino-silicate compositions. The filter is preferably used to remove contaminants from the air in central forced air systems in residential and commercial construction.
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Dees Carl F.
Innovative Research Enterprises
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