Patent · US Active

Porous carbon and methods of production thereof

US9642394B2 · kind B2 · utility

2Cited by

10References

15Claims

0Family size

Assignee

British American Tobacco (Investments) Limited · GB

Inventors

Peter Branton · Southampton, GB
Bertram Böhringer · Erkrath, DE
Sven Fichtner · Erkrath, DE
Jann-Michael Giebelhausen · Erkrath, DE

Key dates

Filing date	Jul 18, 2012
Grant date	May 9, 2017
Priority date	—
Expiry date	Jul 18, 2032

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J20/3236
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

Embodiments of the invention relate to porous carbon and methods of preparing porous carbon. In some embodiments, the prepared porous carbon exhibits enhanced selectivity for hydrogen cyanide (HCN), In one embodiment, the method comprises impregnating activated carbon with a metal oxide, such as zinc oxide. The carbon is suitable for use in smoke filtration.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.