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Help CenterChlor-Alkali Process Caustic Soda for Chemical & Water Treatment
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1 Product Overview
Chlor-alkali process caustic soda (sodium hydroxide) is one of the three flagship products of modern chlor-alkali industrial technology, widely known as the essential basic chemical raw material for global manufacturing. Produced by electrolyzing refined saturated brine through ion-exchange membrane process, it completely abandons traditional high-pollution mercury and diaphragm processes. The finished caustic soda features low impurity content, stable concentration and strong chemical activity, with multiple adjustable specifications to meet diverse industrial demands. It is extensively applied in industrial alkalization, neutralization reaction, raw material refining and wastewater pH regulation. All products are produced in fully automated closed workshops, complying with international industrial chemical standards and supporting long-term stable bulk export and industrial supply.
2 Technical Principle
The production adopts mature ion-exchange membrane chlor-alkali electrolysis technology. Raw brine undergoes multi-stage precipitation, filtration and fine purification to remove calcium, magnesium and particulate impurities, forming qualified saturated refined brine. The purified brine is transported into a sealed full-fluorine ion membrane electrolyzer. Under stable DC constant-current electrolysis, directional redox reactions occur. Sodium ions penetrate the selective permeable ion membrane and react with water at the cathode to generate high-purity sodium hydroxide solution and hydrogen gas. The ion membrane effectively isolates anode and cathode substances to avoid cross-contamination. Finally, the crude lye is processed through evaporation, concentration and precise filtration to obtain standardized industrial caustic soda with stable components.
3 Main Features
High Purity & Stable Batch Quality: Advanced ion membrane purification technology minimizes heavy metal and residue impurities, ensuring consistent concentration and stable quality across all production batches.
Strong Chemical Reactivity: Excellent water solubility and stable alkalinity, enabling fast and sufficient neutralization, saponification and hydrolysis reactions to improve industrial production efficiency.
Green & Low-Carbon Production: Mercury-free and asbestos-free production process, zero toxic discharge, fully compliant with global environmental protection and low-carbon chemical standards.
Diversified Specification Adaptation: Adjustable concentration and purity grades, adaptable to light industry, chemical industry, metallurgy and environmental protection scenarios.
High Industrial Safety: Stable physical and chemical properties, standardized packaging and transportation, meeting international chemical safety specifications.
4 Core Advantages
Advanced Process Advantage: Upgraded ion membrane process outperforms traditional processes with higher electrolysis efficiency, lower energy consumption and superior product purity, realizing green industrial production.
Wide Industrial Coverage: As a core basic alkali product, it supports tens of thousands of downstream chemical and manufacturing products with extremely high industrial practical value.
Cost-Effective Supply: Large-scale automated production improves brine conversion rate, reduces unit production cost, and provides stable and affordable bulk raw material supply.
Strict Quality Control: Full-process closed-loop production and multi-point sampling inspection eliminate quality fluctuations, ensuring downstream product yield and quality stability.
Complete Compliance System: All production indicators meet international industrial and environmental standards, convenient for project acceptance and global trade certification.
5 Core Components
Full-Fluorine Ion Membrane Electrolyzer: Core reaction equipment with selective ion permeability, ensuring high-efficiency electrolysis and high-purity caustic soda generation.
Intelligent DC Rectifier System: Provides stable constant current and voltage, maintaining consistent electrolysis efficiency and product stability.
Multi-Stage Brine Purification Unit: Removes brine impurities to prevent membrane pollution and guarantee continuous stable production.
Evaporation & Concentration System: Precisely adjusts lye concentration to meet customized industrial specification requirements.
PLC Automatic Control System: Realizes full-process monitoring, parameter adjustment and fault alarm for standardized production.
6 Application Fields
Paper pulp manufacturing and textile printing & dyeing, detergent and daily chemical production, petroleum refining and fine chemical synthesis, metallurgical alumina processing, industrial wastewater pH adjustment and neutralization, food processing auxiliary treatment and pharmaceutical raw material preparation.
Boasting 25 years of professional industry experience in production and supply, ZLN factory delivers premium,cost-effective chemical products with reliable quality. Equipped with fully automatic production systems and scientific modular production line design, we achieve stable output, high efficiency and low energy consumption while strictly complying with industrial standards. Different from ordinary manufacturers, ZLN provides flexible customized services tailored to diverse customer needs on product specifications, packaging and solutions. With direct factory pricing and optimized production processes, we help clients cut procurement costs and obtain high-quality, stable chemical supplies with comprehensive professional support.
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