Notice of RetractionThe Study on Recovery of Highly Purified Terephthalic Acid

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

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In those traditional ways of treating alkali weight reduction wastewater, the COD removal is greatly considered, while recovering the valuable resource according to the principles of sustainable development is less involved. In this study, the recovery of high pure TA from alkali weight-reduction has been researched by purified mother liquid with coagulation sedimentation. The characters of TA obtained was investigated by various methods, results has shown that the purity of TA was great improved in view of high recovery rate by coagulation sedimentation on conditions of pH 7.0-7.5 of wastewater and 300-400mg/l in quantity of Al₂(SO₄)₃.18H₂O, thermogravimetric analysis (TGA) spectrums proved this. Particle size analysis revealed the crystal size of recovered TA became greater, it contained few impurities. So coagulation-sedimentation by pretreatment is an effective method. The study is also very useful in recycling of PET and treating TA industrial wastewater.