With 200,000 t/y of membrane caustic soda capacity, Shuangliao Haohua has become Jilin’s largest basic chemical feedstock base and its first intelligent chlor-alkali production base, filling a long-standing gap in the provincial market.
Under General Manager Ji Mingyuan, the company replaced the asbestos diaphragm process with ion-exchange membrane electrolysis. Running on DC power and raw salt, the new process cuts energy use by 15–20% and eliminates asbestos risks to water and health altogether. A circular system balancing chlorine, hydrogen and alkali integrates by-products and achieves 100% utilisation of hydrogen chloride. Food-grade caustic soda and high-purity hydrochloric acid now hold 60% of the Jilin food-additive market, creating jobs and tax revenue for the region.
A DCS distributed control system integrates data acquisition, equipment and alarm monitoring, real-time control, configuration and diagnostics across the smart workshop. A zero-gap retrofit of the membrane electrolyzers raised current efficiency above 96% and cut power use by 120 kWh per tonne, saving over RMB 20 million a year. A 50-strong R&D team solved low power consumption, impurity tolerance and high concentration; caustic soda is stable at 32% with industry-leading purity. The company holds 3 national invention patents, the Food Production and National Industrial Product Production Licenses, and High-Tech and SRDI certification.
Quality is the company’s lifeline: 18 checkpoints run from heavy-metal testing of incoming salt, through real-time pH control during electrolysis, to final purity analysis. Membrane caustic soda holds purity above 99.5%, well beyond national standards, and serves chemical fibres, textiles, pharmaceuticals, metallurgy, power, defence, building materials, papermaking and food processing. Products lead the Jilin market and sell across Northeast China and Inner Mongolia. One chemical-fibre customer reports a 15% gain in fibre lustre since switching to Haohua soda.
Source: Jilin Daily
First review: Xia Wei
Second review: Wang Weiping
Final review: Li Wencai
