Dextrin Depressant (Flotation Grade)
CAS Number: 9004-53-9
Dextrin is a water-soluble polysaccharide depressant widely used in sulfide mineral flotation to selectively depress pyrite, talc, and other gangue minerals. Unlike starch, dextrin does not require heat activation and dissolves readily in cold water, providing a convenient and effective depressant for daily flotation operations. It is particularly useful in lead-zinc and copper circuits to reduce pyrite and talc contamination in concentrates.
Technical Specifications
| appearance | White to cream powder |
| moisture (%) | ≤12 |
| pH (1% solution) | 4-7 |
| dextrose equivalent (DE) | 5-20 |
Applications
- Pyrite depression in lead-zinc and copper sulfide flotation
- Talc depression in base metal ore flotation
- Graphite gangue depression in sulfide ore circuits
- Combined depressant with other polysaccharides for complex ores
- Non-heated cold water depressant applications
Key Features
- Cold water solubility eliminates need for heat activation
- Selective depression of pyrite and talc in base metal circuits
- Reduces impurities in concentrate for improved smelter terms
- Compatible with all standard flotation collector systems
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CAS Number
9004-53-9
Category
Mining / Flotation ChemicalsAvailability
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