公开(公告)号：EP0418075B1

公开(公告)日：1995-06-21

申请号：EP90310016.2

申请日：1990-09-13

Applicant: ELF ATOCHEM NORTH AMERICA, INC.

Inventor： De Graaf, Aart Pieter ,  Linder, Georg Heinrich ,  Hoekman, Leendert Cornelis

IPC: B01D53/34

CPC classification number: B01D53/64

公开(公告)号：EP0418075A1

公开(公告)日：1991-03-20

申请号：EP90310016.2

申请日：1990-09-13

Applicant: ELF ATOCHEM NORTH AMERICA, INC.

Inventor： De Graaf, Aart Pieter ,  Linder, Georg Heinrich ,  Hoekman, Leendert Cornelis

IPC: B01D53/34

CPC classification number: B01D53/64

Abstract: A contaminated vapour stream, e.g. a tin-compound containing exhaust from a glass coating facility, is contacted with an acidic aqueous absorbing medium, preferably pH less than 2.5, which already contains some of the compound to be removed. Formation of precipitate is avoided. Contacting may be in one or more scrubber beds. The removed metal-containing species may be recovered from the absorbing medium for re-use.

Abstract translation: 污染的蒸气流，例如 将含有来自玻璃涂布设备的废气的锡化合物与已经含有一些待除去的化合物的酸性含水吸收介质接触，优选pH小于2.5。 避免形成沉淀物。 接触可以在一个或多个洗涤床中。 可以从吸收介质中回收去除的含金属物质以供再利用。