Through an appropriate chemical reaction process, waste hydrochloric acid can be effectively converted into a calcium chloride solution. According to market demand, this solution can be further processed to produce 77% calcium chloride dihydrate or 94% anhydrous calcium chloride, both of which are widely used in industrial, de-icing, and chemical applications.
In the chlor-alkali and fluorochemical industries, the treatment of by-product hydrochloric acid (HCl) has long been a major operational and environmental challenge. Non-compliant discharge can lead to significant environmental pressure, while simple disposal not only wastes valuable resources but also substantially increases operating costs. Under the global trend of energy saving, emission reduction, and sustainable development, efficient and compliant waste hydrochloric acid treatment has become a key focus for industrial enterprises.
Through an appropriate chemical reaction process, waste hydrochloric acid can be effectively converted into a calcium chloride solution. According to market demand, this solution can be further processed to produce 77% calcium chloride dihydrate or 94% anhydrous calcium chloride, both of which are widely used in industrial, de-icing, and chemical applications.
This waste acid recycling technology not only solves the environmental challenges associated with hydrochloric acid disposal, but also enables resource recovery and circular economy practices. More importantly, it transforms waste hydrochloric acid into high value-added calcium chloride products, helping chemical plants reduce waste treatment costs, improve profitability, and achieve sustainable development goals.
Waste hydrochloric acid reacts with limestone in the reactor to form a calcium chloride solution, which then undergoes a secondary reaction to ensure complete conversion. The solution is subsequently neutralized and pH-adjusted to remove impurities such as iron and magnesium, and finally filtered to deliver a high-quality calcium chloride solution.
Based on market demand and customer requirements, the calcium chloride solution can be flexibly processed into 77% calcium chloride dihydrate or 94% anhydrous calcium chloride, enabling versatile product options and optimized commercial value.
• Continuous, high-efficiency operation: our specially designed system replaces traditional batch processes, minimizing civil construction and significantly reducing investment costs.
• Simple and labor-saving operation: integrated continuous reaction reduces control points and manpower needs, while ensuring smooth, reliable production.
• Superior product quality: impurities from waste hydrochloric acid and limestone are fully removed during the reaction, delivering consistent, high-purity calcium chloride.
• Eco-friendly and compliant: exhaust gases are treated through an acid mist scrubber, solving environmental challenges and ensuring safe, sustainable operation.
• Flexible and market-ready: produces high-quality calcium chloride solutions that can be converted into 77% calcium chloride dihydrate or 94% anhydrous calcium chloride products to meet varying market demands and customer requirements.
