With the three-stage mixing process, is the quality of crude phenol satisfactory?
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What is the quality of crude phenol in the process for producing triple-blended oil? Before I started production, it was the intermittent tar production process, and only the washed naphthalene oil and crude phenol had very good quality. Currently, the three-component mixture extraction process is being used in the distillation column, and the phenol content in the crude phenol remains at 70-75%. I wonder whether the quality of crude phenol produced using this three-component mixture process in other facilities is satisfactory
Is there steam blowing? It seems that the sodium phenolate content, as well as the phenol level, is too low. By adjusting the process, it can definitely meet the standards.
Indicator Name Indicator (1) Content of phenols and their homologs (on an anhydrous basis)% Not less than 83 (2) Boiling range (on an anhydrous basis) Before 210°C (volume)% Not less than 60; before 230°C (volume)% Not less than 85 (3) Content of neutral oils (in water-containing products)% Not more than 0.8 (4) pH value 5–6 (5) Content of pyridine base% Not more than 0.5
Increase the phenol content of sodium phenolate and reduce the water content