How to Make Sodium Humate?
Apr 11, 2025|
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As a globally leading Sodium Humate manufacturer, GreenTop (Jiangxi Green Source New Materials Co., Ltd.) provides high-standard Sodium Humate Granule products for aquaculture, agricultural improvement, and industrial applications through advanced production technology and strict quality management. This article delves into the manufacturing process, core advantages, and diverse applications of sodium humate granules, offering professional insights for industry clients.
1. Raw Material Selection for Sodium Humate Granules
The primary raw materials for Sodium Humate Granule production are natural lignite (brown coal) or leonardite (oxidized lignite). GreenTop selects leonardite with high humic acid content (60%-70%) as the base material, which far exceeds ordinary lignite in organic activity. These materials are rich in macromolecular organic substances, which, after scientific processing, form highly water-soluble sodium humate salts, laying the foundation for superior product quality.
GreenTop adheres to stringent testing standards for raw material procurement to ensure no heavy metal contamination and stable humic acid activity. During pretreatment, the coal is crushed and sieved to a particle size below 80 mesh, enhancing reaction efficiency.
2. GreenTop’s Sodium Humate Granule Production Process
Alkaline Extraction Reaction
The raw material reacts with sodium hydroxide (NaOH) solution under high temperature and pressure, converting humic acid into water-soluble sodium salts. GreenTop employs segmented temperature control to prevent structural damage to humic acid while adding surfactants to ensure uniform reaction.Filtration and Purification
The reacted solution undergoes multi-stage filtration to remove impurities. Ion exchange technology further eliminates heavy metals, ensuring Sodium Humate Granule meets food-grade safety standards.Concentration and Granulation
The purified sodium humate solution is vacuum-concentrated into a high-density liquid. Spray drying or extrusion granulation techniques are then used to form granules. GreenTop offers various specifications (powder, flakes, granules) to meet diverse needs—e.g., 1-3mm granules for aquaculture and 3-6mm flakes for soil conditioning.Drying and Packaging
The final product is dried at low temperatures to a moisture content ≤15%. Moisture-resistant kraft paper bags (25kg/bag) or customized packaging ensure stability during storage and transportation.
3. Core Technical Advantages of GreenTop’s Sodium Humate Granules
High Activity and Water Solubility
Optimized alkali ratios and reaction times result in Sodium Humate Granule products with water solubility ≥98% (e.g., GZGT-28/29), enabling rapid dissolution in water or feed for enhanced absorption.Strict Quality Control System
Each batch undergoes HPLC (High-Performance Liquid Chromatography) testing to verify humic acid content (adjustable from 30%-70%), pH (9.0-11.0), and heavy metal residues, ensuring compliance with international environmental standards.Multi-Functional Application Design
Tailored solutions for different industries:Aquaculture: GZGT-32/33 granules purify water and chelate heavy metals.
Livestock Feed: GZGT-24 powder boosts animal immunity and reduces ammonia toxicity.
Industrial Ceramics: High-purity sodium humate strengthens ceramic body performance.
4. Key Applications of Sodium Humate Granules
Aquaculture Water Quality Management
GreenTop’s Sodium Humate Granule rapidly adsorbs harmful substances like hydrogen sulfide and ammonia, while releasing trace elements to promote algae growth, creating a healthy aquatic environment.Animal Feed Additive
Adding 0.5%-1% sodium humate improves feed conversion rates, enhances digestive enzyme activity, and reduces livestock morbidity, increasing farming profits by 15%-20%.Soil Remediation and Fertilizer Efficiency
As a soil conditioner, sodium humate alleviates soil compaction, minimizes fertilizer runoff, and stimulates crop root development.
5. Frequently Asked Questions (FAQ)
Q1: Why choose leonardite as the raw material?
Leonardite’s long-term oxidation process yields higher humic acid content and a molecular structure that reacts more efficiently with alkali, ensuring superior product activity.
Q2: How is water solubility guaranteed in granular products?
GreenTop uses ultra-fine grinding and synchronized granulation to ensure rapid disintegration, achieving ≥90% dissolution rates.
Q3: Is the production process eco-friendly?
The facility features wastewater recycling and exhaust gas purification systems, compliant with China’s HJ 550-2015 environmental standards.
6. Why Choose GreenTop as Your Sodium Humate Manufacturer?
Scalable Production: 15-20 days delivery, customizable orders.
Global Certifications: ISO 9001, HACCP, and EU REACH certified.
Technical Support: Free samples and formulation optimization services.
For Sodium Humate Granule specifications or orders, contact:
Tel: 0086-797-8250085 / 0086-18107978166
Email: bella@gzgreentop.com
Address: A-701, Zijin Plaza, Zhanggong District, Ganzhou, Jiangxi Province, China
With GreenTop’s advanced production techniques and end-to-end quality control, Sodium Humate Granule is your ideal solution for enhancing aquaculture efficiency and environmental sustainability!








