Resources Contact Us Home
Method for increasing the chrome to iron ratio of chromites products

Image Number 3 for United States Patent #7658894.

A method for increasing the chrome to iron ratio of a chromite product selected from the group consisting of ore and ore concentrate comprising the steps of mixing the chromite product with at least one salt so as to produce a mixture, whereby the concentration of salt in the mixture is selected to induce the selective chlorination of iron; and chlorinating the mixture in the presence of CO at a temperature sufficient to induce the formation of a thin film of a melt around the chromite product and at a temperature able to promote the selective chlorination of iron, whereby an iron impoverished chromite product is yielded having an increased chromite to iron ratio as compared to that of the chromite product.

  Recently Added Patents
Determining ill conditioning in square linear system of equations
Magnesium metal-air battery
System for alarming upon occurrence of secession of smart key for vehicles
Representations of compressed video
Orbing and lighting systems
Resist composition and method for producing resist pattern
Device in a system operating with CAN-protocol and in a control and/or supervision system
  Randomly Featured Patents
Display case air duct partitioned for individual fans
Telescopic retractable antenna
Method of providing key frames of video in mobile terminal
Efficient purification of adenovirus
Clamping band
Micro mirror device and projector employing the same
Method and system for maintaining multiple PDN network connection during inter-technology handover in idle mode
Tape recorder
Front bumper for automobile
Downhole actuation tool