Composite activation method for improving activity of blast furnace slag containing titanium
By employing a graded composite activation method, deep grinding and alkali activation or grinding aid-assisted grinding and alkali activation are used for blast furnace slags with different titanium contents. This solves the problem of improving the activity of high-titanium slag and achieves efficient and economical resource utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JIUQUAN IRON & STEEL (GRP) CO LTD
- Filing Date
- 2026-05-29
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are insufficient to effectively enhance the activity of titanium-containing blast furnace slag. Single methods suffer from high energy consumption and low efficiency, especially for high-titanium slag, where mechanical activation efficiency is low and chemical activation effect is limited.
A graded composite activation method is adopted, and the titanium content is graded according to the titanium content. Low titanium slag is treated by deep grinding and alkali activation, while high titanium slag is treated by grinding aid to assist deep grinding and alkali activation, combining the synergistic effect of physical grinding and chemical activation.
It significantly improved the activity index of slag, increasing the low-titanium slag from 73.2% to 97% and the high-titanium slag from 58.2% to 76%, meeting or exceeding national standards, reducing grinding energy consumption, and achieving efficient and economical resource utilization.
Smart Images
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