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Benzophenone decarboxylation

2009-02-24View Original

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Question: The analysis of Benfield decarboxylation solution includes a chloride ion parameter; what is its role in this process, and how does it appear there?
Reply #22009-02-25
The analysis of Benfield decarburization solutions includes a chloride ion test; its main effect is to cause corrosion to the equipment. The main reason is the substandard deionized water used in preparing the potassium carbonate solution.
Reply #32009-02-25
The phenyldecarboxylation system uses stainless steel, and chloride ions in the solution cause severe corrosion of this material. Substitute the solution preparation time.
Reply #42009-03-20
It could be a leak in the heat exchanger, caused by the circulating water
Reply #52009-03-20
CL ions cause pitting corrosion in stainless steel, leading to steel embrittlement. Source: 1. It is possible that the heat exchanger has leaked potassium alkali solution into it ; 2. The desalinated water treatment was not up to standard, and impurities were introduced during the preparation of the potassium alkali solution ; 3. The previous system was for coal-to-gas production, and the chlorine was not completely removed.

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