| 主权项 |
1. A method for producing surface-modified calcium oxide particles, comprising the steps of:
(Method I)
(a) providing raw calcium oxide, an additive, and a milling aid;(b) providing and inertizing a milling device (M), which is sealed with respect to the surroundings; and(c) milling the raw calcium oxide in the presence of the milling aid and the additive in this milling device, or (Method II)
(a) providing raw calcium oxide, an additive, and a milling aid;(b) providing and inertizing a milling device (M), which is sealed with respect to the surroundings, and a spraying device (S);(c) milling the raw calcium oxide in the presence of the milling aid in said milling device (M); and(d) contacting the milled calcium oxide with the additive in said spraying device (S),wherein the milling aid (i) is an inert gas having a water content of<0.1g/m3, or (ii) is a non-aqueous liquid having a water content of<0.1 g/l; andwherein the additive is a liquid, which contains compounds selected (i) from the group of C4-20 carbonic acids and the derivatives thereof, or (ii) from the group of C3-20 alkyl derivatives of catechol or pyrogallols, or (iii) from the group of the natural fatty acids or (iv) from the group of lactic acid derivatives. |
