Aluminium sulphate compositions containing polynuclear complexes and a method of producing the same and the use thereof
OwnerStefan Jafverstrominventor
Life of this patent
Estimating the term…
Abstract
The present invention relates to a metal sulphate composition comprising a polynucleate metal sulphate having the general formulae [Me(OH)x(SO4)y(H2O)z]n where Me is three valence metal ion of the group aluminium and iron n is an integer x is 1.0-2.8; y is 0.1-1.0; x+2y is 3 and z is 1.5-4, z being <4 when the product is in solid form and z being >4 when the product is in solution whereby it has a content of MG2+, its pH is at least 3.3 and at most 5.0 in liquid form, it has a basicity of at most 2.8, and it contains highly charged cationic polyaluminium complexes, as well as a method for its manufacture, and its use.
Claims21
An aluminium sulphate composition comprising a polynucleate aluminium sulphate having the general formulae
- [Al(OH)x(SO4)y(H2O)2]n
- n is an integer
- x is 1.0-2.8;
- y is 0.1-1.0;x+3y is 3 and
- z is 1.5-4, z being <4 when the product is in solid form and z being >4 when the product is in solution wherein it has a content of Mg2+, whereby the amount of Mg2+ is
- stoichiometrically equivalent to the basicity, its pH is at least 3.3 and at most 5.0 in liquid form, it has a basicity of at most 2.8, and it contains highly charged cationic polyaluminium complexes.
Dependencies are inferred from the claim text.