Additives
Gilsonite as a Carbon Source in Metallurgy
Gilsonite contains high carbon and low ash, making it a possible carbon source in some metallurgical processes. Carbon…
Natural asphalt in run-of-mine lump form for melting, blending with bitumen and further processing.
Key benefits
- High softening point natural hydrocarbon
- Low moisture and controlled ash
- Economical for in-house melting and milling
- Supplied in jumbo bags or bulk
Product overview
Gilsonite lump is the natural form of the mineral as it leaves the mine: hard, glossy black pieces with a sharp, glassy fracture. It is the most economical form for customers who melt or dissolve gilsonite in their own process, such as bitumen blending terminals, coating plants and grinding mills.
Applications
- Bitumen blending and modification
- Raw material for grinding to powder
- Coating and waterproofing compounds
- Briquetting binders
Technical data
Data sheet
Gilsonite Lump
| Property | Typical value | Test method |
|---|---|---|
| Appearance | Black, shiny lumps | Visual |
| Size | 0 – 50 mm (custom) | Sieve |
| Softening point (R&B) | 150 – 220 °C | ASTM D36 |
| Ash content, max | 5 – 10 % | ASTM D3174 |
| Moisture, max | 1 % | ASTM D95 |
| Volatile matter | 55 – 75 % | ASTM D3175 |
| Solubility in toluene, min | 95 % | ASTM D2042 |
| Specific gravity @ 25°C | 1.04 – 1.10 | ASTM D70 |
| Typical dosage | Depends on application. | |
| Packing | 1 MT jumbo bags or bulk; 20 MT per 20ft container. | |
Typical values. The final specification is confirmed in the COA of each shipment.
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