Patent · US Expired

Carbon-containing molecular sieves

US3960769A · kind A · utility

12Cited by

4References

7Claims

0Family size

Assignee

Bergwerksverband GmbH · DE

Inventors

Heinrich Munzner
Heinrich Heimbach
Werner Korbacher
Werner Peters
Harald Juntgen · Essen, DE
Karl Knoblauch
Dieter Zundorf

Key dates

Filing date	Feb 21, 1974
Grant date	Jun 1, 1976
Priority date	—
Expiry date	Feb 21, 1994

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC01B2210/0045
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Process for preparing carbon-containing molecular sieves adapted for separating small molecular gases, in particular oxygen, from nitrogen, which comprises treating coke having a content of volatile components of up to 5% at 600.degree. - 900.degree.C with a hydrocabon which splits off carbon whereby the split-off carbon is deposited in the carbon framework of the coke thereby narrowing the existing pores.

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