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OZONE REMOVAL MATERIALS

IP.com Disclosure Number: IPCOM000024659D
Original Publication Date: 1981-Aug-31
Included in the Prior Art Database: 2004-Apr-02
Document File: 2 page(s) / 47K

Publishing Venue

Xerox Disclosure Journal

Abstract

The present invention relates to a novel material for reducing the ozone content in the air. It is known that Hopcalite, which is a mixture of manganese dioxide and copper oxide, is an efficient ozone removing material. However, Hopcalite is an expensive material and it is not generally available in a wide variety of physical shapes that are sometimes desired. In addition, pure Hopcalite particles are brittle and tend to form an excessive amount of very small sized powdered particles which are not easily used.

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XEROX DISCLOSURE JOURNAL

OZONE REMOVAL MATERIALS Proposed Jean Laing Classification

U.S. C1. 204/176 Int. C1. COlb 13/10

The present invention relates to a novel material for reducing the ozone content in the air. It is known that Hopcalite, which is a mixture of manganese dioxide and copper oxide, is an efficient ozone removing material. However, Hopcalite is an expensive material and it is not generally available in a wide variety of physical shapes that are sometimes desired. In addition, pure Hopcalite particles are brittle and tend to form an excessive amount of very small sized powdered particles which are not easily used.

The present invention provides that activated carbon, which is available in a number of physical shapes such as felts, mats, fibers, etc., be doped with Hopcalite. The doping or coating of the activated carbon may be effected by precipitating the Hopcalite in the presence of the activated carbon substrate. Alternatively, the Hopcalite may be deposited onto the activated carbon particles and the mixture pellitized. It will be appreciated that the activated carbon has some ozone removal capabilities itself.

Volume 6 Number 4 July/August 1981 161

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  XEROX DISCLOSURE JOURNAL Volume 6 Number 4 July/August 1981

162

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