METHOD FOR PREPARING HIGHER SATURATED CHLORINATED ACIDS Russian patent published in 2007 - IPC C07C53/19 C07C51/215 C07C51/225 

FIELD: chemistry of halogenated hydrocarbon, chemical technology.

SUBSTANCE: invention relates to an improved method for synthesis of higher saturated chlorinated acids of the general formula: R(CHCl)_nCOOH wherein R means aliphatic hydrocarbon radical comprising 9-22 carbon atoms; n = 1-4. Method involves oxidation of chloroparaffins in the presence of catalyst that is mixed with chloroparaffins in the presence of air oxygen at temperature 120-125⁰C, and oxidation is carried out with air oxygen at temperature 105-110⁰C under atmosphere pressure for 30-32 h, and wherein cobalt stearate is used as catalyst taken in the amount 1.5-1.7 wt.-% of the reaction mass. Invention provides increasing rate in carrying out the reaction and simplifying the method.

EFFECT: improved method of synthesis.

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