Metal Or Metal Containing Compound Sorbed Patents (Class 95/133)
Mercury sorbed (Class 95/134)
  • Supported sorbents for removal and recovery of arsenic from gases
    Patent number: 5330560
    Abstract: A process for removal and recovery of arsenic from a gas comprising contacting a supported sorbent with an arsenic-containing gas, adsorbing the arsenic with the supported sorbent, desorbing the arsenic from the supported sorbent, and collecting the desorbed arsenic.
    Type: Grant
    Filed: March 29, 1993
    Date of Patent: July 19, 1994
    Assignee: Gas Research Institute
    Inventors: Sherman S. Chao, Amir Attari
  • Method of eliminating mercury or arsenic from a fluid in the presence of a mercury and/or arsenic recovery mass
    Patent number: 5245106
    Abstract: The invention relates to a method of eliminating mercury or arsenic from a fluid in the presence of a solid mass for the recovery of mercury and/or arsenic. The said mass contains copper and sulphur at least partly in the form of copper sulphide and results (a) from the incorporation of a copper compound other than a sulphide into a solid mineral support, (b) possible calcination of the product obtained in stage (a), and from bringing the product obtained previously into contact with elementary sulphur and (d) a heat treatment.
    Type: Grant
    Filed: October 30, 1991
    Date of Patent: September 14, 1993
    Assignee: Institut Francais du Petrole
    Inventors: Charles Cameron, Philippe Courty, Jean-Paul Boitiaux, Philipe Varin, Gerard Leger