US 7,585,353 B2
	Method for reducing heavy metals in flue gases
Amandine Gambin, Ternuay (France); and Alain Laudet, Namur (Belgium)
Assigned to S.A. Lhoist Recherche et Developpment, (Belgium)
Appl. No. 10/592,412 PCT Filed Mar. 14, 2005, PCT No. PCT/EP2005/051141 § 371(c)(1), (2), (4) Date Sep. 11, 2006, PCT Pub. No. WO2005/099872, PCT Pub. Date Oct. 27, 2005.
Claims priority of application No. 2004/0136 (BE), filed on Mar. 15, 2004.
Prior Publication US 2007/0217979 A1, Sep. 20, 2007
Int. Cl. B01D 53/02 (2006.01)

U.S. Cl. 95—133  [95/134; 502/253; 423/107; 423/594.14; 423/594.18]

7 Claims

1. Method for reducing heavy metal vapors, in particular mercury vapors, present in flue gases, the method comprising a stage of bringing flues gases into contact with a sorbent solid material in the dry state, characterized in that the sorbent solid material is a non-functionalised mineral compound selected from the group consisting of halloysite and phyllosilicates of the palygorskite subgroup and the sepiolite subgroup of the palygorskite-sepiolite group according to the Dana classification.