The comparison of the vanadium precipitation method is shown in the table.
Table comparison of vanadium precipitation methods
Project | Hydrolyzed precipitation | Acidic ammonium salt | Weakly acidic ammonium salt vanadium | Alkaline ammonium salt vanadium | Calcium vanadate method | Ferric vanadium method |
pH value of vanadium | 1.5 to 3 | 2 to 3 | 4~6 | 8~9 | 5~11 | <7 |
Acid consumption | Very large | Big | small | Very small | ||
Ammonium consumption | no | small | Big | Very large | ||
Initial vanadium concentration | Can be big or small | Can be big or small | Big | Big | Can be big or small | Can be big or small |
Three waste problem | Waste liquid | Waste liquid, waste gas | Waste liquid, waste gas | Waste liquid, waste gas | Waste liquid | Waste liquid |
Production cycle | short | short | long | long | short | short |
Vanadium yield/% | ~98 | >98 | >38 | >98 | 97～99.5 | 99～100 |
Product contains V 2 O 5 /% | >85 | >99 | >99 | >99 | low | low |
Ansi Slip On Flange,Slip On Flat Face Flange,Slip On Forged Steel Flange,Alloy Steel Slip On Flange
SHANXI BAOFAN HEAVY INDUSTRY GROUP CO., LTD , https://www.baofanflanges.com