A deposit misdiagnosed as calcium phosphate was actually a calcium–HEDP salt

What this case study covers

A food-additive plant rated for 10,000 MT/yr was losing throughput to heat-exchanger deposition the incumbent supplier identified as calcium phosphate. Every phosphate-based correction failed and the account was at risk. An independent, first-principles review found the true mechanism and corrected the program with no capital — recovering ~$1.7M/yr.

Inside this case study

• Value breakdown: recovered production margin, cleaning, and treatment savings
• Root cause: why a calcium–HEDP salt reports as calcium phosphate
• Reconciling actual chemical feed against expected system actives
• Competing-salt saturation modeling resolving up to 100 salts
• The polymeric/phosphonate synergy and terpolymer redesign
• Why a deposit ID alone can send a program the wrong direction