Method for preparing a carbon black of high resistivity and a carbon black of high resistivity prepared by this method

A method for preparing a carbon black of high resistivity, comprising the steps of:

• (a) producing a carbon black in a combustion reactor;
• and (b) transferring the carbon black produced in the combustion reactor to an oxidation reactor and oxidizing the carbon black by adding ozone to the oxidation reactor,
• wherein the combustion reactor includes (1) a first reaction zone for burning a fuel oil in the combustion reactor using a combustion-promoting oxygen of high temperature to reach a reaction temperature simultaneously while forming stream of a combustion gas, (2) a second reaction zone located downstream of the first reaction zone and producing a carbon black by reacting the stream of the combustion gas with a raw material oil, and (3) a third reaction zone located downstream of the second reaction zone and lowering the temperature of the carbon black produced in the second reaction zone, and
• wherein the temperature of the first reaction zone is in the range from 1,200° C. to 1,500° C.