Processing

Please wait...

Settings

Settings

Goto Application

1. WO1992001033 - PROCESS FOR DEMETALIZING OILS

Publication Number WO/1992/001033
Publication Date 23.01.1992
International Application No. PCT/GB1991/001012
International Filing Date 21.06.1991
Chapter 2 Demand Filed 04.02.1992
IPC
C10M 175/00 2006.1
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
175Working-up used lubricants to recover useful products
CPC
C10M 175/0016
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS
175Working-up used lubricants to recover useful products
0016with the use of chemical agents
Applicants
  • FREED, Arthur, Woolf [GB]/[GB]
  • FRIEDMAN, Misha [IL]/[IL]
Inventors
  • FRIEDMAN, Misha
  • HONIG, Giora
Agents
  • MAURY, Richard, Philip
Priority Data
9458204.07.1990PT
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) PROCESS FOR DEMETALIZING OILS
(FR) PROCEDE DE DEMETALLISATION D'HUILES
Abstract
(EN) The present invention relates to a process for demetalizing oils which comprises heating oil to be demetalized, heating a diluted aqueous ammonium hydrogen sulfate solution containing oxalic acid, adding ethoxynonane while a temperature of at least 80 °C is maintained, thoroughly mixing and separating while the system is maintained at a temperature higher than 80 °C.
(FR) La présente invention se rapporte à un procédé de démétallisation d'huiles qui consiste à chauffer l'huile devant être démétallisée, à chauffer une solution diluée aqueuse de sulfate d'hydrogène d'ammonium contenant de l'acide oxalique, à ajouter de l'éthoxynonane tout en maintenant une température d'au moins 80 °C, à mélanger entièrement et à séparer les phases alors que le système est maintenu à une température supérieure à 80 °C.
Related patent documents
Latest bibliographic data on file with the International Bureau