EP 0675191 A2 19951004 - Petroleum additive and process for producing alkaline earth metal salt of an aromatic hydroxy-carboxylic acid.
Title (en)
Petroleum additive and process for producing alkaline earth metal salt of an aromatic hydroxy-carboxylic acid.
Title (de)
Erdöladditiv und Verfahren zur Herstellung eines Erdalkalimetallsatz von einer aromatischen Hydroxycarbonsäure.
Title (fr)
Additif pour huile minérale et procédé pour préparer un sel alcalino-terreux d'acide aromatique hydroxy-carboxylique.
Publication
Application
Priority
JP 8585794 A 19940330
Abstract (en)
A petroleum additive containing an alkaline earth metal salt of an aromatic hydroxy-carboxylic acid, wherein the alkaline earth metal salt is substantially free of an alkali metal and the ratio of salicylic acid skeleton to total benzene nuclei is 0.4:1 to 0.95:1. Also, a process for producing an alkaline earth metal salt of an aromatic hydroxy-carboxylic acid involving: i) reacting an alkaline earth metal salt of a phenol with carbon dioxide; ii) reacting the resulting free phenol with an alkaline earth metal reagent in the presence of 2.0 to 15.0 mol of a dihydric alcohol per 1 mol of the alkaline earth metal reagent (when no water is added) or in the presence of 0.01 to 10.0 mol of water and 1.5 to 10.0 mol of a dihydric alcohol each per 1 mol of the alkaline earth metal reagent; and iii) repeating the reaction with carbon dioxide.
IPC 1-7
IPC 8 full level
C07C 51/15 (2006.01); C07C 65/03 (2006.01); C07C 65/10 (2006.01); C10L 1/14 (2006.01); C10L 1/18 (2006.01); C10L 1/30 (2006.01); C10L 10/00 (2006.01); C10M 141/02 (2006.01); C10M 159/22 (2006.01); C10M 163/00 (2006.01); C10L 1/16 (2006.01); C10N 10/04 (2006.01); C10N 30/04 (2006.01); C10N 30/08 (2006.01); C10N 70/00 (2006.01)
CPC (source: EP)
C10L 1/14 (2013.01); C10L 1/18 (2013.01); C10L 10/18 (2013.01); C10M 141/02 (2013.01); C10M 159/22 (2013.01); C10M 163/00 (2013.01); C10L 1/1616 (2013.01); C10L 1/1824 (2013.01); C10L 1/1828 (2013.01); C10L 1/1832 (2013.01); C10L 1/189 (2013.01)
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
EP 0675191 A2 19951004; EP 0675191 A3 19951213; JP H07268374 A 19951017
DOCDB simple family (application)
EP 95104736 A 19950330; JP 8585794 A 19940330