What are the quality standards for phenate?
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Can any Haiyou provide the quality standards for alkaline phenolate, neutral phenolate and net phenolate, including phenol content and neutral oil content, etc. It would be better to be more detailed, thank you :hug: :handshake
Each factory has slight differences in indicator control. The general control situation is introduced as follows for reference.: 1. Alkaline sodium salt, containing 4-8% phenol and 5-8% free alkali. It is mainly necessary to control the free alkali, because the free alkali is related to the next step of removing phenol. ； 2. Neutral sodium salt, containing about 25% phenol and 1.5-2.0% free alkali. The main thing is to control the free alkali because it involves acid and alkali consumption. ； 3. Refined sodium salt contains about 25% phenol and less than 0.2% neutral oil. It is mainly neutral oil because it directly affects crude phenol neutral oil. Some of these indicators are related to acid and alkali consumption, some are related to the amount of wastewater, some are related to product quality, and some are related to the ease of operation. I hope to continue to understand them in future work.
Net phenol contains 28--32% phenol, neutral oil less than 0.3
Our factory 1. Alkaline sodium salt, containing phenol 4--8%, free alkali 8--12%； 2. Neutral sodium salt, containing about 24-32% phenol, and less than 1.5% free base. 3. Refined sodium salt, containing about 24-32% phenol, and less than 0.5% neutral oil.