Method of making carbon black

Abstract

A method of making tailored carbon black in a plasma process. A method of making tailored carbon black in a plasma process is described, including subjecting the carbon black particles during and/or after formation to surface functionalizing agents in a controlled manner so as to impart a degree and/or density of functionalization onto the carbon black particles so as to adapt the particles to a particular pre-intended application.

What is claimed is: 
     
         1 . A method of making carbon black in a plasma process comprising, subjecting the carbon black particles during and/or after formation to surface functionalizing agents in a controlled manner so as to impart a degree and/or density of functionalization onto the carbon black particles so as to adapt the particles to a particular pre-intended application. 
     
     
         2 . The method of  claim 1 , wherein the functional groups comprise oxygen containing functional groups. 
     
     
         3 . The method of  claim 1 , wherein the functional groups are introduced in the reactor, pelletizer, and/or dryer. 
     
     
         4 . The method of  claim 1 , wherein the functional groups comprise carboxylic acid and/or phenolic groups. 
     
     
         5 . The method of  claim 1 , wherein the density of the functionalization is up to about 30 micromol/m 2    
     
     
         6 . The method of  claim 1 , wherein the carbon black particles are subjected to the functionalizing agents at temperatures up to about 500° C. 
     
     
         7 . The method of  claim 1 , wherein the functionalizing agents contain one or more oxidizing agents. 
     
     
         8 . The method of  claim 1 , wherein the functionalizing agents contain one or more of H 2 , CO, CO 2 , O 2 , water vapor, nitrogen, N 2 O, NO 2 , ozone, ammonia, amines, methyl amines, H 2 O 2 , acids, HNO 3 , persulfates, hypohalites, halites, halates , perhalates, permanganates, carbonates, bleach, nitric acid, potassium permanganate, sulfuric acid, diazonium salts, diazonium salt of sulfanilic acid, nitrates, nitrate salts, organic nitrates, peroxides, and alkali metal super peroxides. 
     
     
         9 . The carbon black produced by the process of  claim 1 .