Title:
PROCESS FOR RECOVERY OF GLYCOL FROM USED GLYCOL-CONTAINING TECHNICAL FLUID AND ANTI-FREEZE CONTAINING THE GLYCOL
Document Type and Number:
Japanese Patent JPH07285897
Kind Code:
A
Abstract:
PURPOSE: To obtain a pure, colorless and odorless glycol recycled product without causing conventional technical problems and, simultaneously, as simply as possible from used glycol-containing technical fluids, especially used anti- freezes.
CONSTITUTION: To used glycol-containing technical fluids, especially used anti- freezes is added an organic solvent which forms with the glycol to be separated an azeotropic mixture which has a lower boiling point than that of the glycol as such, and this azeotropic mixture is distilled off.
Inventors:
YUURUGEN MOOA
BUORUFUUDEIITAA BARUTSUAA
BUORUFUUDEIITAA BARUTSUAA
Application Number:
JP9110395A
Publication Date:
October 31, 1995
Filing Date:
April 17, 1995
Export Citation:
Assignee:
BASF AG
International Classes:
C07C29/80; C07C29/82; C07C31/20; C09K3/00; C09K5/20; D01F13/04; (IPC1-7): C07C31/20; C07C29/80; C07C29/82
Attorney, Agent or Firm:
Toshio Yano (2 outside)