Phosphorylated product made by heating alkylated phenol in presence of solid acid catalyst
AssigneeAkzo Nobel N.V.
InventorsAnantha N. Desikan, George E. Whitwell
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Abstract
The isomerization of an alkylated phenol composition that contains an ortho-alkyl substituted phenol component to isomerize and reduce the level of ortho-alkyl substituted phenol component therein can be accomplished by heating that composition in the presence of a catalytically effective amount of a solid acid catalyst to carry out such isomerization and reduction in the level of ortho-alkyl substituted phenol. Examples of suitable solid acid catalysts can be selected from the H-form zeolites, the supported sulfonic acids, and the heteropoly acids. The resulting isomerized product can be subsequently phosphorylated.
Claims5
A process which comprises phosphorylation of a composition comprising ortho-substituted alkylated phenol composition that comprises comprising mono-, 2,6-dialkyl, and tri-substituted phenol species, wherein the alkyl group or groups have from two to about twelve carbon atoms therein, the amount of 2,6-dialkyl phenol is no more than about 4.0%, and the amount of trialkyl phenol is from about 4% to about 75%, by weight of the entire composition, to isomerize and reduce the level of ortho-substituted alkyl phenol component therein in the presence of a catalytically effective amount of a solid acid catalyst to carry out such isomerization and reduction in the level of ortho-substituted alkyl phenol component.
A process which comprises the phosphorylation of a composition comprising mixed alkylphenols wherein the ratio of ortho- to meta- and para- isomers is no more than about 1.0, the amount of 2,6-dialkyl phenol is no more than about 4.0%, by weight of the entire composition, wherein the alkyl group or groups have from two to about twelve carbon atoms therein, and the amount of trialkyl phenol is from about 4% to about 75%, by weight of the entire composition.
Dependencies are inferred from the claim text.