Polymeric basic aluminum silicate-sulphate

摘要

A polynucleate aluminum hydroxy silicate-sulphate compound (PASS) having the following average composition: AlA(OH)B(SO4)C(SiOX)D(H2O)E wherein A is 1.0; B ranges from 0.75 to 2.0; C ranges from 0.30 to 1.12; D ranges from 0.005 to 0.1; X is greater than 2.0 but less than or equal to 4.0 such that 3=B+2C+2D (X-2); E is larger than 4 when the product is in aqueous form. The compound is useful for water treatment and other applications where an aluminum hydroxide gel system is required. The compound, in aqueous solution, has a long storage life.