What is the reason for the formation of a small amount of precipitate when crude methanol is treated with an alkali to adjust the pH value?

2017-01-05 View Original

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What is the reason for the formation of a small amount of precipitate when crude methanol is treated with an alkali to adjust the pH value? In a 160,000-ton methanol project, no waxing occurred in the crude methanol water coolers and filters; however, a small amount of sediment appeared after adding alkali during distillation. The filter screens need to be cleaned every 10 days or so.

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What is the reason for the formation of a small amount of precipitate when crude methanol is treated with an alkali to adjust the pH value?

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