Basic non-carbonated magnesium compositions and fuel, lubricant and additive concentrate compositions containing same

Patent · Mon Dec 08 23:00:00 EST 1986

OSTI ID:7138494

Karn, J L

A process is described for preparing a noncarbonated, basic magnesium salt of a substituted hydroxy-containing aromatic carboxylic acid having a magnesium content of at least 150% and up to about 250% of the stoichiometrically equivalent amount, based on the total amount of acid present. This consists essentially of reacting at a temperature of about 25/sup 0/C up to the decomposition temperature of a reactant, in the absence of any inorganic acid material (A) at least one hydrocarbyl-substituted or substantially hydrocarbyl-substituted aromatic hydroxy carboxylic acid, salt or saponifiable derivative thereof. The substantially hydrocarbon substituent contains up to about 10 weight percent of polar groups selected from the group consisting of mercapto, halogen, nitro, amino, nitroso, sulfo, keto, oxo groups and various combinations thereof, and; (B) a stoichiometric excess of at least one basically reactive magnesium compound selected from the group consisting of magnesium oxides, hydroxides and alkoxides for each equivalent of the acid salt or derivative thereof, in the presence of (C) at least about 0.1 mole of water for each equivalent of magnesium compound, and then refluxing the resulting mixture for at least about 0.5 hour with the proviso that the reaction is carried out in the absence of any carboxylic acid other than (A).

• Assignee: Lubrizol Corp., Wickliffe, OH
• Patent Number(s): US 4627928
• OSTI ID: 7138494
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
400201* -- Chemical & Physicochemical Properties
ADDITIVES
ALKALINE EARTH METAL COMPOUNDS
ALKOXIDES
AROMATICS
CARBOXYLIC ACIDS
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTION KINETICS
DISPERSIONS
FUELS
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROXIDES
KINETICS
LUBRICANTS
MAGNESIUM COMPOUNDS
MAGNESIUM HYDROXIDES
MAGNESIUM OXIDES
MEDIUM TEMPERATURE
MIXTURES
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
QUANTITY RATIO
REACTION KINETICS
STOICHIOMETRY
SYNTHESIS
TIME DEPENDENCE
WATER