Method for Preparing Metal Nanoparticles
US-2016375496-A1 · Dec 29, 2016 · US
Method of producing low oxygen-content molybdenum powder by reducing molybdenum trioxide
US8979975B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8979975-B2 |
| Application number | US-201314079401-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 13, 2013 |
| Priority date | Nov 29, 2012 |
| Publication date | Mar 17, 2015 |
| Grant date | Mar 17, 2015 |
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Abstract
Official abstract text for this publication.
Disclosed is a method of producing low oxygen-content molybdenum powders by reducing molybdenum trioxide, which includes charging a first reducing agent and the molybdenum trioxide, which are in the direct contact with each other on a micro-sieve on an upper portion of a bracket in a body, charging a second reducing agent in the bracket under the micro-sieve, coupling the body with a cover to close the body, and performing a reduction reaction by raising an internal temperature of the body by performing the first reduction reaction due to direct contact between the first reducing agent and the molybdenum trioxide, and performing the second reduction reaction due to evaporation of the second reducing agent. The first and second reduction reactions are performed at a temperature in a range of 550° C. to 650° C., and a temperature in a range of 1000° C. to 1200° C., respectively.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of producing molybdenum powders having a particle size of 5 μm or less and an oxygen content of 3000 ppm or less by reducing molybdenum trioxide, the method comprising: charging a first reducing agent and the molybdenum trioxide on a micro-sieve, which is located on an upper portion of a bracket installed in a body, while the first reducing agent and the molybdenum trioxide are directly making contact with each other; charging a second reducing ag…
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- B22F9/20Primary
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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- What does patent US8979975B2 cover?
- Disclosed is a method of producing low oxygen-content molybdenum powders by reducing molybdenum trioxide, which includes charging a first reducing agent and the molybdenum trioxide, which are in the direct contact with each other on a micro-sieve on an upper portion of a bracket in a body, charging a second reducing agent in the bracket under the micro-sieve, coupling the body with a cover to c…
- Who is the assignee on this patent?
- Korea Inst Geoscience & Minera
- What technology area does this patent fall under?
- Primary CPC classification B22F9/20. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 17 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).