| abstract |
The present invention relates to a sorbent composition containing core-shell type particles for removing heavy metals, in particular mercury, from gas, said core comprising a calco-magnesium compound having the formula aCaC03.bMgC03.xCa0.yMgO. zCa (OH) 2.tMg (OH) 2.ul, where I represents the impurities, a, b, x, y, z and t are each mass fractions> 0 and <100%, u is a mass fraction> 0 and <20% by weight, and being coated with a coating having a thickness in the range of 50 nm to 20 μm, and comprising at least one metal salt and a sulfur-based compound and its method of preparation. |