	US 12,122,718 B2
	Method of increasing the stability of a slag
Klaus Schulz, Wessel (DE); and Hervé Tavernier, Abbeville (FR)
Assigned to CALDERYS FRANCE, Sezanne (FR)
Appl. No. 17/611,617
Filed by IMERTECH SAS, Paris (FR)
PCT Filed Apr. 22, 2020, PCT No. PCT/EP2020/061158 § 371(c)(1), (2) Date Nov. 16, 2021, PCT Pub. No. WO2020/233928, PCT Pub. Date Nov. 26, 2020.
Claims priority of application No. 19305634 (EP), filed on May 17, 2019.
Prior Publication US 2022/0250979 A1, Aug. 11, 2022
Int. Cl. C04B 18/02 (2006.01); C04B 18/14 (2006.01); C04B 111/00 (2006.01)

CPC C04B 18/021 (2013.01) [C04B 18/142 (2013.01); C04B 2111/00767 (2013.01)]

15 Claims

1. A method of making a slag, the method comprising adding a composition to the slag and subsequently cooling the slag, wherein the composition comprises from about 6 wt % to about 25 wt % of a source of boron ions and from about 75 wt % to about 94 wt % of a source of silica; and a total amount of silica in the composition is about 35 wt % or more.