Method of making halophthalic acids and halophthalic anhydrides
A method of preparing a halophthalic acid is disclosed which comprises the steps of contacting in a liquid phase reaction mixture at least one halogen-substituted ortho-xylene with oxygen and acetic acid at a temperature in a range between about 120° C. and about 220° C. in the presence of a catalys...
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Format: | Patent |
Sprache: | eng |
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