Prevent pH-related Problems

A number of issues may contribute to sensing and quality issues

ph puzzler mn

This Month’s Puzzler We use a bank of continuously stirred reactors to raise the pH of an inorganic slurry in preparation for drying and packaging. The proper pH is critical for controlling dryer corrosion, which would result in rust contamination. Some dryer chemicals are pH-sensitive and the pH of the product must be between 6.7 and 7.9. We add finishing chemicals for packaging in the last tank. The process is fraught with problems. The pH probes in the beginning tanks foul often with different campaigns of product. Sometimes the chemicals added in the last tank result in product rejects in packaging. How can we improve this process and reduce product rejections?…

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    Full Story
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