The process is shown in Figure 1.
Figure 1 Wet process of the former Soviet Union Chusov plant
1. Removal of iron : first remove the large piece of iron by hand, then grind it to 1.0mm, and magnetically separate the iron particles;
2. Sodium oxide roasting: with sodiuming agent Na 2 CO 3 , NaCl, Na 2 SO 4 , calcined at 850-950 ° C, the rotary kiln used is 2.5 m in diameter, 42 m long, and the processing capacity is 2500-3200 kg/h. . The water-soluble dip leaching rate of vanadium after calcination is 85% to 92%.
3. Leaching: firstly add water immersion, liquid-solid ratio 3.5/1, 40-50 ° C, the residue after filtration contains 0.6% V 2 O 5 , and sent to the second step to add acid leaching.
Fourth, vanadium: the use of acidic hydrolysis of vanadium, red cake. Finally, the melt contains 89% to 90% of V 2 O 5 .
What is Hand Stretch FIlm?
Hand stretch film is considered any stretch film roll that is easily applied by hand. Most hand stretch film rolls weigh less than ten pounds. Hand rolls can come in a variety of widths, but the most common widths are 15 and 18 inch wide rolls. Hand stretch rolls can be applied with or without a stretch film dispenser. The dispensers often have a braking system to help obtain a tighter stretch when applying the film. Our hand Pallet wrap comes with a standard 3 inch core size allowing rolls to easily fit any dispensers. View the different hand stretch wraps to choose from below.
Hand Stretch Film (3 inch Core)
This is a standard gauged stretch film that is comparable to any other brand of true gauged stretch film. It is made with a cast extrusion process that uses rollers to cool the film as it is extruded.
This enables a faster extrusion process than blown extrusion, therefore making a more affordable stretch film. Our hand stretch wrap offers great stretch, strength, and clarity for a variety of applications.
Micron Hand Stretch Film (3 inch Core)
Our micron stretch film is what we refer to as an equivalent stretch film. Many experts predict a shift in the stretch film industry to equivalent films. They are produced from a different formula than the standard gauged film. This formula allows the equivalent film to be thinner, stronger, and stiffer than standard gauged stretch film.
Many companies welcome the idea of lowering overall stretch costs. We recommend trying a sample if you have never tried an equivalent hand stretch wrap. This will allow you to make an accurate assessment of the film and if it is right for your needs.
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