B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 12/00 (2006.01) B01D 17/00 (2006.01) B01D 17/025 (2006.01) B01D 17/04 (2006.01) C11D 7/26 (2006.01) C11D 7/28 (2006.01) C11D 7/30 (2006.01)
Patent
CA 2553080
To provide a process for removing water, capable of maintaining good water removal performance for a long time continuously and constantly. A process for removing water, which comprises a dipping step of dipping an article having water attached on its surface, in a solvent composition comprising at least one member selected from a hydrochlorofluorocarbon, a hydrofluorocarbon and a hydrofluoroether, and an alcohol, as the essential components, to carry out removal of water, a specific gravity separation step of separating water from the solvent composition containing the water removed from the article, by a specific gravity separation method, and a filtration step of filtering the solvent composition having the water removed in the specific gravity separation step, through a coalescer type filter to further remove water remaining in the solvent composition.
Procédé d~égouttage mécanique dans lequel d~excellentes performances d~égouttage mécanique peuvent être assurées en continu et en toute stabilité sur une période prolongée. Il est prévu un procédé d~égouttage mécanique, caractérisé en ce qu~il comprend la phase d~immersion d~un article à la surface duquel de l'eau dégouline, dans une composition de solvant comprenant obligatoirement au moins un élément sélectionné parmi les hydrochlorofluorocarbones, les hydrofluorocarbones et les hydrofluoroéthers et un alcool pour ainsi procéder à l~égouttage ; la phase de séparation par densité consistant à séparer l~eau de la composition de solvant contenant l~eau séparée de l~article selon une technique de séparation par densité ; et la phase de filtrage de la composition de solvant de laquelle l~eau a été retirée lors de la phase de séparation par densité par le biais d~un filtre de type coalesceur pour ainsi poursuivre l~enlèvement de toute eau restant dans la composition de solvant.
Hanada Tsuyoshi
Tsuzaki Masaaki
Asahi Glass Company Limited
Smart & Biggar
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