| IOSIL ENERGY CORPORATION Patent applications |
| Patent application number | Title | Published |
|---|
| 20110280785 | METHODS AND APPARATUS FOR RECOVERY OF SILICON AND SILICON CARBIDE FROM SPENT WAFER-SAWING SLURRY - Methods, systems, and apparatus are disclosed herein for recovery of high-purity silicon, silicon carbide and PEG from a slurry produced during a wafer cutting process. A silicon-containing material can be processed for production of a silicon-rich composition. Silicon carbide and PEG recovered from the silicon-containing material can be used to form a wafer-saw cutting fluid. The silicon-rich composition can be reacted with iodine containing compounds that can be purified and/or used to form deposited silicon of high purity. The produced silicon can be used in the photovoltaic industry or semiconductor industry. | 11-17-2011 |
| 20110023778 | Method and Apparatus for Improving the Efficiency of Purification and Deposition of Polycrystalline Silicon - Methods and apparatus for the commercial-scale production of purified polycrystalline silicon granules with one or more tailored levels of n- and p-type impurities from an impure silicon source such as, for example, metallurgical-grade silicon. Purification systems and methods involve: (1) one or more series of temperature controlled reactors or vessels provided with dual fluidized beds wherein solids and gases are transported so that varying degrees of purification and deposition of solid silicon is accomplished by strict control of temperature and residence time; (2) separation and recovery of the compounds of high-melting-point impurities such as, for example, FeSi and FeI | 02-03-2011 |
