Patent · US Expired

Mass transfer in plate columns and apparatus for this purpose

US5788895A · kind A · utility

6Cited by

7References

3Claims

0Family size

Assignee

BASF SE

Inventors

Gerhard Altinger · Speyer, DE
Horst Egly · Böhl-Iggelheim, DE
Rudolf Kaiser · Lappersdorf, DE
Fritz Thiessen · Ludwigshafen, DE

Key dates

Filing date	Aug 5, 1996
Grant date	Aug 4, 1998
Priority date	—
Expiry date	Aug 5, 2016

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C51/42
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Column tray for a mass transfer column, in particular one provided with a support ring at the circumference, which tray has support elements and tray plates arranged side by side on the support elements and having passages, in particular holes, valves or bubble caps, wherein the majority, preferably the total number, of tray plates are connected liquid-tight, preferably welded, to the support elements or the support ring, in particular in discrete area elements; the majority, preferably the total number, of support elements are connected liquid-tight, preferably welded, to one another and to the column wall or the support ring, in particular in discrete area elements; and in addition the majority, preferably the total number, of adjacent tray plates and support elements are separated from one another and from the column wall or the support ring by gaps having a width of from 1 to 15 mm, preferably from 1 to 7 mm.

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