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ChinaChemicals and materials2025 – ongoing

Wanhua Chemical

TPT control of chlor-alkali production in Ningbo

SUPCON reported that Wanhua cut wastewater neutralization time from 5 hours to 1 hour with AI control

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Problem

Wanhua's chlor-alkali operation needed steadier process parameters and less manual adjustment. Wastewater neutralization required lengthy treatment.

Approach

Wanhua worked with SUPCON to deploy its TPT time-series model at the Ningbo caustic-soda installation. The model combined historical operating data with current conditions to predict process changes and adjust controls. Its wastewater application controlled pH through a prediction-and-execution loop.

Results

1 hourwastewater neutralization time, down from 5 hours, according to SUPCONVendor case study[1]

Takeaway

The reported time saving concerned wastewater neutralization. Separate electricity and raw-material savings remained forecasts.

Categories

Business function
Production and quality
Innovation type
Process innovation
Evidence
Vendor case study

Sources

Source summaries

[1]ZiDongHua / SUPCON21 Oct 2025

SUPCON described TPT operating at Wanhua's Ningbo chlor-alkali installation. It reported that wastewater neutralization fell from 5 hours to 1 hour, while other resource savings were expected.

Full details are in the original sources.

Added 1 Nov 2026 · Updated 1 Nov 2026
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