Patent · US Expired

Process for filling and emptying a vessel charged with flammable and aggressive gas

US6372190B1 · kind B1 · utility

8Cited by

5References

4Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Lothar Zehe · Rheinfelden (Baden), DE
Mieczyslaw Kuzma · Rheinfelden (Baden), DE
Hartwig Rauleder · Rheinfelden (Baden), DE

Key dates

Filing date	Jun 13, 2000
Grant date	Apr 16, 2002
Priority date	—
Expiry date	Jun 13, 2020

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/88054
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present invention relates to an apparatus for the safe filling and emptying of a pressurized vessel charged with flammable and/or aggressive gas. The apparatus features an upper flap combination, an intermediate lock vessel having a flushing apparatus, and a lower flap combination. The present invention also relates to a pressurized reactor which is charged with flammable and/or aggressive gas and is equipped with a filling lock apparatus and an emptying lock apparatus for the simultaneous preparation of tetrachlorosilane, trichlorosilane and hydrogen. In addition, the present invention relates to a special process for filling and emptying such a reactor.

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