Method of recycling mother liquid of pure terephthalic acid (PTA) refining unit
The present invention relates to a method of recycling mother liquid of a PTA refining unit. The present invention recycles waste heat and PT acids of a PTA mother liquid to effectively utilize heat in the PTA mother liquid, solves influence of crystallization of the PT acids on subsequent system, r...
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Main Authors | , , , , , , , , , |
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Format | Patent |
Language | English |
Published |
29.09.2020
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Subjects | |
Online Access | Get full text |
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Summary: | The present invention relates to a method of recycling mother liquid of a PTA refining unit. The present invention recycles waste heat and PT acids of a PTA mother liquid to effectively utilize heat in the PTA mother liquid, solves influence of crystallization of the PT acids on subsequent system, reduces pollution to the environment, and can produce huge economic benefits by using high efficient multistage flash distillation technology, low temperature cogeneration technology, heat pump heating and cooling technology, and low temperature crystallization technology. |
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Bibliography: | Application Number: US201716330230 |