Resources Contact Us Home
Precipitated iron catalyst for hydrogenation of carbon monoxide

Image Number 3 for United States Patent #7879756.

A method of producing an iron catalyst for catalyzing the hydrogenation of carbon monoxide is disclosed. The method comprises using a reduced amount of acid for iron dissolution compared to certain previous methods. The resulting acidic iron mixture is heated without boiling to obtain a nitrate solution having a Fe.sup.2+:Fe.sup.3+ ratio in the range of about 0.01%:99.99% to about 100%:0% (wt:wt). Iron phases are precipitated at a lower temperature compared to certain previous methods. The recovered catalyst precursor is dried and sized to form particles having a size distribution between 10 microns and 100 microns. In embodiments, the Fe.sup.2+:Fe.sup.3+ ratio in the nitric acid solution may be in the range of from about 3%:97% to about 30%:70% (wt:wt) and the calcined catalyst may comprise a maghemite:hematite ratio of about 1%:99% to about 70%:30%.

  Recently Added Patents
Method of applying a spherical correction to map data for rendering direction-of-travel paths on a wireless communications device
High order continuous time filter
Fluid pressure responsive electric switch
System and method for improving text input in a shorthand-on-keyboard interface
Method and apparatus for variable accuracy inter-picture timing specification for digital video encoding
Support for a portable electronic device
Nonvolatile semiconductor memory device
  Randomly Featured Patents
Adaptive noise reduction filter with low modulation disabling
Side handle for cooking utensil
Umbrella carrier
Method and system for performing handover in a mobile communication system
Fragrance emitting apparatus for use with USB port
Method for producing multi-layer circuit board and resulting article of manufacture
Control of dust
Methods of imaging solids by NMR techniques
Method for the diagnosis of, and control device for controlling a motor vehicle
System and method for combinatorial test generation in a compatibility testing environment