Method for eliminating metal halides that are present in a liquid or gaseous, organic or non-organic effluent
AssigneeAxens
InventorChristophe Nedez
Life of this patent
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Abstract
The invention relates to a method for eliminating metal halides which are present in a liquid or gaseous, organic or non-organic effluent. According to the invention, the elimination is carried out by absorption of said metal halides on alumina agglomerates. The inventive method is characterised in that: the specific surface area of said agglomerates is between 50 and 350 m2/g, preferably between 70 and 300 m2/g and, better still, between 80 and 250 m2/g; and the V80Å thereof is greater than or equal to 20 ml/100 g, preferably greater than or equal to 25 ml/100 g, better still greater than or equal to 30 ml/100 g and, optimally, greater than or equal to 35 ml/100 g.
Claims15
A method of eliminating metal halides that are present in a liquid or gaseous, organic or non-organic effluent, in which this elimination is carried out by adsorption of said metal halides on alumina agglomerates, wherein:
- said agglomerates have a specific surface area of between 50 and 350 m2/g;
- said agglomerates have a V80Å of at least 20 ml/100 g, a V400Å of at least 10 ml/100 g, and a V37Å of at least 45 ml/100 g;
- and
- said agglomerates include a dopant comprising Na2O.
A method of eliminating metal halides that are present in a liquid or gaseous, organic or non-organic effluent, in which this elimination is carried out by adsorption of said metal halides on alumina agglomerates, wherein:
- said agglomerates have a specific surface area of between 50 and 350 m2/g;
- said agglomerates have a V80Å of at least 20 ml/100 g;
- a V400Å of at least 10 ml/100 g and a V37Å of at least 45 ml/100 g;
- and
- said agglomerates have less than 2% dopant measured as NaO2.
Dependencies are inferred from the claim text.