Titanium Blast Furnace Slag Prepares Tungsten Trioxide Denitration Catalyst 2/2
- Details
- Category: Tungsten Information
- Published on Friday, 22 April 2016 17:08

1. Adding sulfuric acid for the titanium dioxide leaching after the titanium blast furnace slag has been crushed, and filtered to get residue and titanium-containing solution;
2. Add the burnability type porous catalyst carrier into titanium-containing solution with stirring, and selectively adding a basic compound to adjust the pH value for hydrolysis;
3. Filtering, washing and drying the material which has been hydrolysis to obtain a carrier support partial titanate;
4. Load the tungsten source into the carrier support partial titanate, and carry out calcination to get the titanium-tungsten powder;
5. Further load the vanadium precursor to titanium-tungsten powder, then calcine again, finally obtain the vanadium pentoxide-tungsten trioxide-titanium dioxide base of SCR flue gas denitration catalyst.
In the titanium blast furnace slag preparing tungsten trioxide SCR denitration catalyst, there are not critical on the separation and purification of slag leaching solution; but combine the preparation processes of titanyl sulfate hydrolysis and denitration catalyst carrier, furthermore load the active ingredients-- vanadium, tungsten, thus to get the denitration catalyst raw material, the denitration catalyst finally. Blast furnace slag is an industrial solid waste which contains a number of important resources such as iron, calcium, and titanium. The method that using it to produce tungsten trioxide denitration catalyst can really reach the goal of resource recovery, made a corresponding contribution to environmental protection. In addition, it not only provides a new way of using blast furnace slag with high value; but also effectively reduces the production costs of flue gas denitration catalyst, thus to help ease the current domestic commercial denitration catalyst expensive situation, has the important significance of both economic and social.
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