Technology introduction
There are 5 main technical routes of sodium sulfide production, that:
| 1 |
Sodium sulfate reduction by pulverized coal route |
|
2 |
Gas reduction process route |
|
3 |
Barium sulfate by-product sodium sulfide route |
|
4 |
Hydrogen sulfide route |
|
5 |
Sulfur and NaOH (Caustic Soda) mixing route |
Sodium sulfate reduction by pulverized coal route has the advantages of process equipment are simple, easy to operate and control; the raw material requirement is low, and the production cost is low. This technical route are used by most countries, In China, the sodium sulfide capacity by technical route is over 95% of the market total output. Here mainly introduce this technical route.
Quality Index: Quality Stand: GB/T 10500-2009
| Component |
Specification |
|
Sodium sulfide (Na2S) content |
≥ 60.0% |
|
Ferrum (Fe) |
≤ 0.005% |
|
Soda ash (Sodium carbonate, Na2CO3) |
≤ 2.0% |
|
Water insoluble substances |
≤ 0.05% |
Technological process
Case
