Feldspar is the mineral that gives granite its pink, green or gray color. Typically, feldspars are relatively hard at 6 on Mohs' hardness scale. In the modern industry, feldspar is an important mineral in glass and ceramic industries, pottery and enamelware, soaps, abrasives, bond for abrasive wheels, cements and concretes, insulating compositions, fertilizer, poultry grit, tarred roofing materials, and as a sizing (or filler) in textiles and paper.
Todays, with the growth of construction industry, the role of feldspar will become more important, and the demand for feldspar powder or other finished feldspar goods is significantly increases. Therefore, the next years will witness the rapid growth of global feldspar industry. Some mining investors with outstanding foresights have expanded the feldspar mining scale. And they purchase high efficiency feldspar flotation separation machines global.
Separation Process of Feldspar Flotation
Several factors are required for reasonably efficient separation of quartz and feldspar. First, the minerals must be heated to >100°C to ensure a dry surface and allow for accelerated movement of the electrons.
Secondly, de-dusting of the material to remove <100µm prior to T-Stat processing is required for efficient separation. In most instances, activating the quartz/feldspar with fumed HF will enhance the separation, although it is not always required to achieve desirable results.
Testing is key to determining if HF is required. After the activation process, the quartz/feldspar mixture is fed to the separator where quartz will be attracted to the positive electrode, and the feldspar to the contained negative electrode, within the feldspar flotation separator, or feldspar flotation separation machine.
Feldspar Flotation Separation Machine
Feldspar flotation separation machine, also called feldspar flotation separator, is used in the flotation process of feldspar. Feldspar flotation separator belongs to mining equipment using flotation separator. In the flotation process, bubbles are introduced into a pulp and the bubbles rise through the pulp. In the process, hydrophobic particles become bound to the surface of the bubbles. The driving force for this attachment is the change in the surface free energy when the attachment occurs.
These bubbles rise through the slurry and are collected from the surface. To enable these particles to attach, careful consideration of the chemistry of the pulp needs to be made. These considerations include the Ph, Eh and the presence of flotation reagents. The Ph is important as it changes the charge of the particles surface and the Eh affects the chemisorption of collectors on the surface of the particles.