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From Tianjin ZhuoLiNeng Technology Co., Ltd., we introduce a dedicated hydrochloric acid production equipment designed to operate with feedstock of only 89% NaCl purity. This innovative system enables manufacturers to replace expensive high-purity salt with commonly available industrial salt, thereby reducing salt investment and lowering the overall operating cost. Our solution integrates proven chemical engineering with a robust, corrosion-resistant design to provide a stable source of hydrochloric acid for various industrial processes.
The machine is especially suitable for chemical producers, PVC manufacturers, steel pickling lines, and water treatment operations that require high volumes of hydrochloric acid at competitive cost. With the ability to accept low-purity NaCl, the plant eliminates the need for costly salt purification stages, making it an attractive choice for growing hydrochloric acid demand.
Core technical highlights include:
Low-purity feedstock compatibility: Reaction loops and auxiliary equipment are engineered to tolerate additional impurities in 89% NaCl, such as calcium, magnesium, sulfates, and insoluble particles. An optional pre-treatment module can further adjust brine quality without requiring standard salt purification.
Cost-effective process: Using lower-grade salt typically reduces raw material cost by a significant margin. The integrated heat recovery system also lowers fuel consumption, resulting in a lower total cost per ton of hydrochloric acid produced.
Flexible production capacity: Standard units are available from 5 to 100 tonnes of hydrochloric acid per day. Custom capacities can be engineered to meet specific project requirements. Additional modular units can be installed for future expansion.
Reliable automatic control: The PLC-based system automatically adjusts temperature, pressure, feeding rate, and liquid levels to maintain stable operation even when raw material composition fluctuates.
Material and safety design: All wetted parts are made of graphite, fluoropolymer-lined carbon steel, or high-alloy stainless steel to resist hydrochloric acid corrosion. The system is fully sealed, with automatic pressure relief valves and HCl gas detectors. Optional redundant scrubbers ensure that off-gas meets local emission requirements.
Process description and typical parameters:
The production line consists of salt dissolution, optional impurity removal, thermal reaction, hydrogen chloride synthesis, cooling, and absorption into water. The core reactor is manufactured with high-grade corrosion-resistant materials such as graphite blocks or fluoropolymer-lined steel, depending on the selected specification. The absorption section adopts a multi-stage system that can attain hydrochloric acid concentrations from 31% to 36% under normal conditions. Higher concentrations, including 40% or fuming HCl, may be obtained with additional absorption stages and stricter operational controls.
| Feedstock NaCl purity | ≥89% |
| Typical HCl output concentration | 31%–36% (adjustable) |
| Capacity range | 5–100 tonnes/day (customized) |
| Reaction temperature | 800°C–1200°C in reaction zone |
| Optional impurity removal | Precipitation, filtration, ion exchange |
| Control system | PLC with touch screen interface |
| Main structure | Carbon steel with FRP lining / graphite |
Key benefits to your operations:
Lower salt procurement cost: Use industrial-grade NaCl instead of high-purity refined salt, avoiding supplier premiums.
Reduced chemical costs: No heavy brine purification chemicals are required for most cases.
Shorter return on investment: The combination of lower raw material and energy consumption can shorten payback time in many projects.
Compact skid-mounted layout: Saves installation area and simplifies on-site assembly, especially for retrofitting existing plants.
Environmental compliance: Sealed process loop and tail gas absorber effectively control HCl emissions, meeting international environmental standards.
Long service life: The anti-corrosion construction reduces downtime and maintenance frequency.
Economic impact: With the lower salt purity threshold, a typical 50 t/day HCl plant can reduce salt expense by 10% to 30% compared to traditional units, depending on regional salt prices. The payback period is often shorter than two years in areas with abundant industrial salt. Process simplification also means fewer moving parts and lower maintenance labor.
Installation and commissioning: The equipment is pre-assembled and tested at the factory. Skid-mounted design allows quick installation on a prepared foundation. We also offer commissioning services to start up the plant safely and efficiently, supported by detailed operating manuals and remote assistance.
Why choose Tianjin ZhuoLiNeng Technology?
We are a manufacturer located in Tianjin, China, and our equipment has been exported to markets across North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and Asia. Our production system is backed by certification, ensuring a standardized quality management process from design to shipment. Every unit is tested before dispatch and can be loaded at Tianjin Port, which ensures convenient export logistics. Our technical team provides process design, site installation guidance, and after-sales training to ensure smooth implementation.
For a detailed feasibility study and quotation, please send us your feedstock information and target capacity. Our engineers will propose a tailored system that meets your specific acid output, raw material availability, and budget constraints.
Frequently Asked Questions
Q1: Can this equipment process salt with only 89% NaCl purity reliably?
Yes. The equipment is designed with a tolerant reaction and pre-treatment system that removes or neutralizes impurities commonly found in low-grade industrial salt. This is the main advantage over conventional plants that require 99%+ pure salt.
Q2: What hydrochloric acid concentration can be produced?
The standard output range is 31%–36% HCl by weight. The absorption unit can be tuned to produce higher strength acid, up to 40% or fuming grade, with additional safety measures. Please specify your required concentration.
Q3: How does this equipment reduce operating costs?
The main savings come from using cheaper raw material (89% instead of 99% NaCl). The efficient heat recovery and reduced purification chemical usage lower utility and chemical consumption. Maintenance costs are low thanks to anti-corrosion materials.
Q4: Is the production capacity flexible?
Yes. We offer capacities from small pilot units to full-scale industrial plants. The modular skid design allows expansion by adding parallel modules. Capacity can be customized based on your production target.
Q5: What safety features are included?
The system has emergency shut-off valves, overpressure protection, hydrogen chloride detection sensors, and a water scrubber for tail gas neutralization. Safety interlocks are integrated into the PLC control system.
Q6: Can we use local raw materials with different impurity compositions?
Absolutely. Our engineers can analyze a sample of your feedstock and design pre-treatment steps accordingly. The equipment is adaptable to variations in calcium, magnesium, sulfate, and organic impurities.
Q7: What after-sales service do you provide?
We provide complete process documentation, installation supervision, operator training, and online technical support. We also offer spare parts packages and regular maintenance plans.
Q8: What is the delivery time?
Delivery time depends on equipment specification and order quantity. Typically, a standard unit is delivered within 3–5 months after the deposit. Expedited delivery can be arranged for urgent orders upon request.
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