Nanometer blue tungsten oxide may be applied for producing thermal insulation coating, which may be widely applied in fields of building and automotive in the future.
Such tungsten oxide powder can be prepared by self-reduction of ammonium paratungstate, that is, by APT self-reduction method. What are the advantages of using APT self-reduction method to produce blue tungsten oxide powder?
Both hydrogen (H2) and ammonia (NH3) are dangerous gases. In the production process, production safety accidents are easy to occur due to careless handling. And there will be serious safety hazards. Therefore, from the safety point of view, the APT self-reduction technology is more conducive to safe production. Furthermore, from the perspective of economic efficiency, H2 and NH3, which are used as auxiliary materials, participate in the production. It will increase the cost of the auxiliary material. While APT self-reduction process doesn’t need to pay this cost. And it is undoubted that the self-reduction process technology can rationally optimize and utilize resources and energy.
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