Low-Sugar Grade vs Standard Industrial Ammonium Lignosulfonate Purity Index & Selection Guide

Ammonium Lignosulfonate is split into standard industrial grade and low-sugar refined grade based on sugar residue, ash content and application limits. Unreasonable grade selection will cause poor product forming, mold growth and unqualified finished goods, so buyers need to match grades with actual production processes.

 

Standard industrial Ammonium Lignosulfonate retains natural sugar components from pulp extraction, with moderate viscosity and strong binding power. It fits mineral flotation, general concrete water reduction and fertilizer granulation scenarios that do not require strict sugar control. Its lower purification cost makes it the primary choice for large-volume low-margin industrial projects.

 

Low-sugar grade Ammonium Lignosulfonate goes through multi-stage fermentation and membrane filtration to remove most reducing sugar. Ultra-low sugar content avoids mold and fermentation during long-term storage of feed, pesticide and ceramic raw materials. This refined grade is mandatory for food-contact additives and high-standard feed factories in EU and North America markets.

 

In testing indicators, low-sugar products control reducing sugar below 3%, while standard grade ranges from 8% to 12%. Ash and insoluble matter are also stricter for low-sugar specifications, with higher factory unit price accordingly. For procurement reference, mining and ordinary construction choose standard grade; feed, pesticide and export ceramic production must adopt low-sugar Ammonium Lignosulfonate to meet overseas inspection standards.