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Adsorbent material selective with respect to metal pollutants, method of preparation and its use

Référence

83704-01

Statut des brevets

Priority patent application FR9611242 filed on September 11, 1996 and entitled “Matériau adsorbant sélectif vis-à-vis de polluants métalliques, procédé de préparation de ce matériau adsorbant, et procédé d’épuration utilisant un tel matériau”

Inventeurs

Raymont FLAMAND
Daniel GAUTHIER
Gilles FLAMANT

Statut commercial

Exclusive or non-exclusive licenses and collaborative research

Laboratoire

Laboratoire des procédés, matériaux, énergie solaire (PROMES, UPR8521), Perpignan, France

Description

TECHNICAL DESCRIPTION

The invention concerns an adsorbent material selective with respect to metal pollutants, characterised in that it consists of particles with predetermined size grading less than 3 mm, of a feldspar ore of natural origin: its mode expressed in mass percentages is as follows: albite >50 %, anorthite >/=6 %, orthoclase >10 %, quartz <20 %, with a percentage of Na2O >/=6 %.

BENEFITS

The adsorbant material described in this invention is cheap and has a better retention rate of metal pollutants in comparison with synthetic origin zeolites. In addition, it presents particles with sizes adapted to the application.

INDUSTRIAL APPLICATIONS

This new adsorbent material can be particularly used to removal of metal pollutants present in liquid effluents, particularly in chemicals, petrochemical, agrochemical, pharmaceutical, plastic, metallurgical factories.

 


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