Preparation of carboxylic acids or their salts, halides or anhydrides (of acids by hydrolysis of oils, fats or waxes C11C)

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• C07C 51/02 from salts of carboxylic acids
• C07C 51/04 from carboxylic acid halides
• C07C 51/06 from carboxylic acid amides
• C07C 51/08 from nitriles
• C07C 51/083 from carboxylic acid anhydrides
• C07C 51/09 from carboxylic acid esters or lactones
• C07C 51/093 by hydrolysis of —CX3 groups, X being halogen
• C07C 51/097 from or via nitro-substituted organic compounds
• C07C 51/10 by reaction with carbon monoxide
• C07C 51/15 by reaction of organic compounds with carbon dioxide, e.g. Kolbe-Schmitt synthesis
• C07C 51/16 by oxidation (C07C51/145 takes precedence)
• C07C 51/34 by oxidation with ozone; by hydrolysis of ozonides
• C07C 51/347 by reactions not involving formation of carboxyl groups
• C07C 51/41 Preparation of salts of carboxylic acids ( preparation of soap C11D)
• C07C 51/42 Separation; Purification; Stabilisation; Use of additives
• C07C 51/54 Preparation of carboxylic acid anhydrides (by oxidation C07C51/16)
• C07C 51/58 Preparation of carboxylic acid halides