2 results about "Kaolin product" patented technology

The invention relates to the technical field of kaolin modification, in particular to modified kaolin with high viscosity concentration and a preparation method and application thereof. The preparation method of the modified kaolin with high viscosity concentration comprises the following steps: mixing kaolin and sulfamide, ball-milling, drying and modifying to obtain the modified kaolin. The invention provides a process for modifying the kaolin by combining dry ball milling and dry modification technologies and using sulfamide, so that the viscosity concentration of the kaolin can be improved, the structure of the kaolin is not changed, the original whiteness of the kaolin is maintained, the viscosity of a kaolin product is effectively reduced, and the comprehensive quality of the kaolin product is improved; and subsequent papermaking coating and other process applications are not influenced, so that the requirements of the papermaking industry are better met.