Patent · US Expired

Process of separating hydrogen fluoride from gases

US4065271A · kind A · utility

14Cited by

2References

7Claims

0Family size

Assignees

Metallgesellschaft AG · DE
Vereinigte Aluminum - Werke Aktiengesellschaft · DE

Inventors

Ernst Weckesser
Volker Sparwald
Lothar Reh · Zumikon, CH
Eberhard Bohm
Rolf Graf · Königstein, DE

Key dates

Filing date	Oct 10, 1975
Grant date	Dec 27, 1977
Priority date	—
Expiry date	Oct 10, 1995

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D53/68
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Hydrogen fluoride is removed from gases by introducing the gases into a fluidized-bed reactor to form a gas-solid suspension, entraining a major part of the solids in an upward direction separating the solids entrained by the gases without prior removal of the solids from the gas-solid suspension, by means of an electrostatic precipitator.

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