Patent · US Expired

Pauling boiler and process for the concentration of sulphuric acid

US4857281A · kind A · utility

1Cited by

7References

3Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Heiko Beckhaus · Leverkusen, DE
Harro Witt · Kuden, DE
Peter Klein · Itzehoe, DE

Key dates

Filing date	Jan 15, 1988
Grant date	Aug 15, 1989
Priority date	—
Expiry date	Jan 15, 2008

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC01B17/90
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A Pauling boiler for the concentration of sulphuric acid, wherein the external surface of the Pauling boiler is coated with aluminum. A process for the concentration of sulphuric acid in Pauling boilers by underfiring with gas or liquid fuels, wherein the concentration is carried out in a Pauling boiler coated with aluminum.

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