Process to produce a post catalyst removal composition

1. A process comprising contacting a cooled carboxylic acid composition produced in a terephthalic acid production process, and a wash feed comprising water and/or acetic acid to a catalyst removal zone to form a post catalyst removal composition, and a catalyst rich liquor comprising cobalt, acetic acid and water; wherein said wash feed is at a temperature ranging from about 5° C. to about 90° C.; wherein said cooled carboxylic acid composition is at a temperature ranging from about 20° C. to about 60° C.; wherein said post catalyst removal composition has a catalyst composition of less than 500 ppm; wherein said catalyst removal zone has a wash ratio between about 0.2 and about 6; wherein said wash ratio is the mass of said wash feed divided by mass of solids in the cooled carboxylic acid composition; wherein said post catalyst removal composition comprises IPA in an amount ranging from 20 ppm to about 2000 ppm by weight on a dry solid basis.

2. The process according to claim 1 wherein said wash ratio is between about 0.2 to about 2.0.

3. A process comprising:

(a) oxidizing an aromatic feedstock comprising paraxylene in a primary oxidation zone to form a crude carboxylic acid composition comprising terephthalic;

(b) optionally, subjecting said crude carboxylic acid composition to a liquid displacement zone to form a slurry composition;

(c) crystallizing said slurry composition or said crude carboxylic acid composition in a crystallization zone to form a crystallized slurry composition;

(d) cooling said crystallized slurry composition in a cooling zone to form a cooled carboxylic acid composition; wherein said cooled carboxylic acid composition is at a temperature ranging from about 5° C. to about 90° C.;

(e) subjecting said cooled carboxylic acid composition produced in a terephthalic acid production process, a wash feed comprising water and/or acetic acid; to a catalyst removal zone to form a post catalyst removal composition, and a catalyst rich liquor; wherein said wash feed is at a temperature ranging from about 5° C. to about 90° C.; wherein said cooled carboxylic acid composition is at a temperature ranging from about 20° C. to about 60° C.; wherein said post catalyst removal composition has a catalyst composition of less than 500 ppm; wherein said catalyst removal zone has a wash ratio between about 0.2 and about 6; wherein said wash ratio is the mass of said wash feed divided by mass of solids in the cooled carboxylic acid composition; wherein said post catalyst removal composition comprises IPA in an amount of 20 ppm to 2000 ppm by weight on a dry solid basis.

4. The process according to claim 3 wherein said primary oxidation zone comprises at least one oxidation reactor operated at a temperature from 110° C. to 200° C.

5. The process according to claim 3 wherein said crystallization zone comprises at least one crystallizer operated at a temperature of 110° C. to 190° C.

6. The process according to claim 3 wherein said cooled carboxylic acid composition is cooled to a temperature ranging from about 20° C. to about 90° C.

7. The process according to claim 3 wherein said cooled carboxylic acid composition is cooled to a temperature ranging from about 20° C. to about 60° C.

8. The process according to claim 3 wherein said cooled carboxylic acid composition is cooled to a temperature ranging from about 20° C. to about 40° C.

9. The process according to claim 3 wherein said wash feed is at a temperature ranging from about 5° C. to about 70° C.

10. A process comprising:

(a) oxidizing paraxylene in a primary oxidation zone to form a crude carboxylic acid composition comprising terephthalic acid;

(b) optionally subjecting said crude carboxylic acid composition to a liquid displacement zone to form a slurry composition;

(c) oxidizing said slurry composition or said crude carboxylic acid composition in a staged oxidation zone to form a stage oxidation composition;

(d) cooling said crystallized slurry composition in a cooling zone to form a cooled carboxylic acid composition;

(e) subjecting said cooled carboxylic acid composition produced in a terephthalic acid production process, a wash feed comprising and/or water and acetic acid; to a catalyst removal zone to form a post catalyst removal composition, and a catalyst rich liquor; wherein said wash feed is at a temperature ranging from about 5° C. to about 70° C.; wherein said cooled carboxylic acid composition is at a temperature ranging from about 20° C. to about 60° C.; wherein said post catalyst removal composition has a catalyst composition of less than 500 ppm; wherein said catalyst removal zone has a wash ratio between about 0.2 and about 6; wherein said wash ratio is the mass of said wash feed divided by mass of solids in the cooled carboxylic acid composition; wherein said post catalyst removal composition has an IPA composition of 20 ppm to 2000 ppm by weight on a dry solid basis.

11. The process according to claim 10 wherein said primary oxidation zone comprises at least one oxidation reactor operated at a temperature from 110° C. to 200° C.

12. The process according to claim 10 wherein said staged oxidation zone comprises at least one staged oxidation device operated at a temperature of 190° C. to 280° C.

13. The process according to claim 11 wherein said staged oxidation zone comprises at least one staged oxidation device operated at a temperature of 190° C. to 280° C.

14. The process according to claim 10 wherein said staged oxidation zone comprises at least one staged oxidation device operated at a temperature of 150° C. to 280° C.

15. The process according to claim 14 wherein said crystallization zone comprises at least one crystallizer operated at a temperature of 110° C. to 190° C.

16. The process according to claim 10 wherein said cooled carboxylic acid composition is cooled to a temperature ranging from about 20° C. to about 90° C.

17. The process according to claim 10 wherein said cooled carboxylic acid composition is cooled to a temperature ranging from about 5° C. to about 195° C.