Resources Contact Us Home
Process for recovery of alumina from high-silica ore

Image Number 3 for United States Patent #4044095.

Back reactions of dissolved alumina from a high caustic-lime digest of anorthosite and other alumina-containing siliceous materials can be eliminated or mitigated by control of particle size of digestible material; and time and temperature of separation of the alumina-bearing liquid from the solid residues. In one embodiment the back reaction is further controlled by adjustment of the caustic concentration of the digest effluent.

  Recently Added Patents
Print control server, print controlling method, and print control program
Method and system for detecting center pivot collision
Precoding codebooks for MIMO communication systems
Permutational memory cells
Remotely provisioned wireless proxy
Method for superconducting connection between MgB2 superconducting wires via a MgB2 matrix made from a boron powder compressed element infiltrated with Mg
Liquid crystal display device and driving method thereof
  Randomly Featured Patents
Space environmentally durable polyimides and copolyimides
Pigment dispersing resin and water-based pigment dispersion which contains the same
Multilevel metallization process for use in fabricating microelectronic devices
Single-phased angular electromagnetic actuator
Acoustic apparatus
Adjustable foot pedal apparatus
System packet interface
Pharmaceutical cream having similar or less levels of imiquimod impurity formation as cream with BHA (comparator)
Database management system risk assessment
Building blocks