Patent · US Expired

Carbon containing molecular sieves

US3979330A · kind A · utility

13Cited by

1References

21Claims

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	Sep 7, 1976
Priority date	—
Expiry date	Feb 21, 1994

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC01B2210/0045
WIPO fieldMaterials, metallurgy
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 hydrocarbon splitting off carbon whereby the split-off carbon is deposited in the carbon framework of the coke under narrowing of the existing pores.

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