A process for production of both purified recycled aromatic dicarboxylic acid (rCA) and purified aromatic dicarboxylic acid (vCA), said process comprising: Producing a first stream comprising a recycled aromatic dicarboxylic acid by a first process, wherein the first process comprises the depolymerisation of a polymer feedstock comprising a polymer of said aromatic dicarboxylic acid in a first reaction system; Producing a second stream comprising the aromatic dicarboxylic acid by a second process wherein the second process comprises the oxidation of an aromatic hydrocarbon in a second reaction system; Purifying both the first stream and the second stream in a common purification system to thereby produce both purified recycled aromatic dicarboxylic acid (rCA) and purified aromatic dicarboxylic acid (vCA).

The present invention also provides an apparatus for the production of both purified recycled aromatic dicarboxylic acid (rCA) and purified aromatic dicarboxylic acid (vCA),

A process for production of both purified recycled aromatic dicarboxylic acid (rCA) and purified aromatic dicarboxylic acid (vCA), said process comprising: Producing a first stream comprising a recycled aromatic dicarboxylic acid by a first process, wherein the first process comprises the depolymerisation of a polymer feedstock comprising a polymer of said aromatic dicarboxylic acid in a first reaction system; Producing a second stream comprising the aromatic dicarboxylic acid by a second process wherein the second process comprises the oxidation of an aromatic hydrocarbon in a second reaction system; Purifying both the first stream and the second stream in a common purification system to thereby produce both purified recycled aromatic dicarboxylic acid (rCA) and purified aromatic dicarboxylic acid (vCA).

The present invention also provides an apparatus for the production of both purified recycled aromatic dicarboxylic acid (rCA) and purified aromatic dicarboxylic acid (vCA),