| 摘要 |
Use of 2-amino-2-methyl-l-propanol (AMP) as an additive in an aqueous suspension, containing from 25 to 62 vol. % of at least one calcium carbonate-comprising material and having a pH of between 8.5 and 11, to increase the suspension pH by at least 0.3 pH units, the AMP being added to said suspension in an amount of from 500 to 15000 mg per litre of the aqueous phase of the suspension, wherein the suspension conductivity change is maintained to within 100 µS/cm/pH unit. |
