A process for making a terephthalic acid composition, said process comprising: (a) introducing a solvent feed into a primary oxidation zone, wherein at least 20 weight percent of said solvent feed is recycled solvent, wherein said primary oxidation zone is defined within a bubble column reactor; (b) subjecting an oxidizable compound to oxidation in said primary oxidation zone to thereby produce an initial slurry comprising an initial solid comprising terephthalic acid and an initial liquid, wherein a representative sample of said slurry has at least three of the following characteristics based on the combined solid and liquid slurry components: (i) contains less than 9,000 ppmw of isophthalic acid, (ii) contains less than 15,000 ppmw of benzoic acid, (iii) contains less than 64 ppmw of 4,4'-dicarboxybiphenyl (4,4'-DCB), (iv) contains less than 70 ppmw of 2,6-dicarboxyfiuorenone (2,6-DCF), (v) contains less than 12 ppmw of 2,7-dicarboxyfluorenone (2,7-DCF), (vi) contains less than 12 ppmw of 9-fluorenone-2-carboxylic acid (9F-2CA), (vii) contains less than 4 ppmw of 4,4'-dicarboxystilbene (4,4'-DCS), (viii) contains less than 6 ppmw of 4,4'-dicarboxyanthraquinone (4,4'-DCA); and (c) subjecting at least a portion of said initial slurry to oxidative digestion in at least one digestion zone, wherein less than 70 weight percent of said initial liquid is removed from said initial slurry prior to introducing said initial slurry into said digestion zone, wherein the weight ratio of the amount of benzoic acid and/or cobalt present in a digestion feed slurry entering said digestion zone to the amount of the same component or components present in said initial slurry is at least 0.3. (a) introducing a solvent feed into a primary oxidation zone, wherein at least 20 weight percent of said solvent feed is recycled solvent, wherein said primary oxidation zone is defined within a bubble column reactor; (b) subjecting an oxidizable compound to oxidation in said primary oxidation zone to thereby produce an initial slurry comprising an initial solid comprising terephthalic acid and an initial liquid, wherein a representative sample of said slurry has at least three of the following characteristics based on the combined solid and liquid slurry components: (i) contains less than 9,000 ppmw of isophthalic acid, (ii) contains less than 15,000 ppmw of benzoic acid, (iii) contains less than 64 ppmw of 4,4'-dicarboxybiphenyl (4,4'-DCB), (iv) contains less than 70 ppmw of 2,6-dicarboxyfiuorenone (2,6-DCF), (v) contains less than 12 ppmw of 2,7-dicarboxyfluorenone (2,7-DCF), (vi) contains less than 12 ppmw of 9-fluorenone-2-carboxylic acid (9F-2CA), (vii) contains less than 4 ppmw of 4,4'-dicarboxystilbene (4,4'-DCS), (viii) contains less than 6 ppmw of 4,4'-dicarboxyanthraquinone (4,4'-DCA); and (c) subjecting at least a portion of said initial slurry to oxidative digestion in at least one digestion zone, wherein less than 70 weight percent of said initial liquid is removed from said initial slurry prior to introducing said initial slurry into said digestion zone, wherein the weight ratio of the amount of benzoic acid and/or cobalt present in a digestion feed slurry entering said digestion zone to the amount of the same component or components present in said initial slurry is at least 0.3.