CN101967011A - Method for preparing submicron molybdenum trioxide - Google Patents
Method for preparing submicron molybdenum trioxide Download PDFInfo
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- CN101967011A CN101967011A CN 201010532749 CN201010532749A CN101967011A CN 101967011 A CN101967011 A CN 101967011A CN 201010532749 CN201010532749 CN 201010532749 CN 201010532749 A CN201010532749 A CN 201010532749A CN 101967011 A CN101967011 A CN 101967011A
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- molybdenum trioxide
- ammonium
- molybdic oxide
- submicron order
- raw material
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Abstract
The invention relates to a method for preparing submicron molybdenum trioxide. In a preparation process, ammonium octamolybdate serving as a raw material is roasted at 300 to 500 DEG C for 3 to 5 hours to form the submicron molybdenum trioxide. The method for preparing the submicron molybdenum trioxide uses ammonium octamolybdate as the raw material and can effectively prepare submicron molybdenum trioxide with a particle size ranging from 0.5 to 2 micrometers.
Description
Technical field
The present invention relates to a kind of preparation method of submicron order molybdic oxide.
Background technology
The molybdenum powder preparation is mainly with the raw material of ammonium molybdate, and ammonium molybdate mainly contains ammonium tetramolybdate, ammonium dimolybdate, Ammonium Heptamolybdate and ammonium octamolybdate etc., and the ammonium molybdate of different varieties is owing to the structure difference, and size range is also different.The ammonium molybdate of different grain size and distribution is very big to the granularity and the distribution influence of molybdic oxide.Industrial general employing ammonium tetramolybdate and ammonium dimolybdate are the feedstock production molybdic oxide, and the mean particle size of molybdic oxide is between 5～15um.Ammonium octamolybdate is compared with ammonium dimolybdate with ammonium tetramolybdate, and fine size is evenly distributed, and is particularly suitable for the low temperature calcination and prepares the submicron order molybdic oxide.
Summary of the invention
Purpose of the present invention is exactly for a kind of preparation method who utilizes baking decomposition equipment large-scale production granularity commonly used at the submicron order molybdic oxide between technical grade and nano level of 0.5～1um is provided.
The objective of the invention is to be achieved through the following technical solutions.
A kind of preparation method of submicron order molybdic oxide is characterized in that its preparation process is raw material with the ammonium octamolybdate, and under 300～400 ℃ of temperature, roasting 3～5 hours makes the submicron order molybdic oxide with ammonium octamolybdate.
The preparation method of a kind of submicron order molybdic oxide of the present invention, the employing ammonium octamolybdate is a raw material, by reducing the calcination temperature, can effectively preparing the molybdic oxide of the submicron order of granularity between 0.5～1um.
Embodiment
A kind of preparation method of submicron order molybdic oxide, its preparation process are raw material with the ammonium octamolybdate, and under 300～500 ℃ of temperature, roasting 3～5 hours makes the submicron order molybdic oxide with ammonium octamolybdate.
Embodiment 1
With the ammonium octamolybdate is raw material, and ammonium octamolybdate is added the pan feeding boat, carries out calcination with retort furnace, and maturing temperature is that roasting time is 5 hours under 300～400 ℃ of temperature, and making granularity is the submicron order molybdic oxide of 0.6um.
Embodiment 2
With the ammonium octamolybdate is raw material, and ammonium octamolybdate is added the pan feeding boat, carries out calcination with retort furnace, is that roasting time is 4 hours under 350～450 ℃ of temperature with maturing temperature, and making granularity is the submicron order molybdic oxide of 0.8um.
Embodiment 3
With the ammonium octamolybdate is raw material, and ammonium octamolybdate is added the pan feeding boat, carries out calcination with retort furnace, is that roasting time is 3 hours under 450～500 ℃ of temperature with maturing temperature, and making granularity is the submicron order molybdic oxide of 0.9um.
Claims (1)
1. the preparation method of a submicron order molybdic oxide, its preparation process is raw material with the ammonium octamolybdate, under 300～500 ℃ of temperature, roasting 3～5 hours makes 0.5～1um submicron order molybdic oxide with ammonium octamolybdate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010532749 CN101967011A (en) | 2010-11-01 | 2010-11-01 | Method for preparing submicron molybdenum trioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010532749 CN101967011A (en) | 2010-11-01 | 2010-11-01 | Method for preparing submicron molybdenum trioxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101967011A true CN101967011A (en) | 2011-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010532749 Pending CN101967011A (en) | 2010-11-01 | 2010-11-01 | Method for preparing submicron molybdenum trioxide |
Country Status (1)
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| CN (1) | CN101967011A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897840A (en) * | 2012-11-12 | 2013-01-30 | 金堆城钼业股份有限公司 | Method for preparing molybdenum trioxide by calcining ammonium dimolybdate |
| CN103194624A (en) * | 2013-04-18 | 2013-07-10 | 金堆城钼业股份有限公司 | Method for preparing high-purity molybdenum trioxide |
-
2010
- 2010-11-01 CN CN 201010532749 patent/CN101967011A/en active Pending
Non-Patent Citations (2)
| Title |
|---|
| 《精细化工中间体》 20090430 李志松等 树脂吸附法从含钼废水中回收制备三氧化钼 第60～61页"2.1 实验原理"部分、第62页"3.3 除杂净化及三氧化钼的制备部分指标"部分 1 第39卷, 第2期 2 * |
| 《阻燃剂：制造、性能及应用》 19970630 欧育湘 12.2.1 三氧化钼及八钼酸铵的主要性能 兵器工业出版社 第221页表12-4 1 , 第1版 1 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897840A (en) * | 2012-11-12 | 2013-01-30 | 金堆城钼业股份有限公司 | Method for preparing molybdenum trioxide by calcining ammonium dimolybdate |
| CN102897840B (en) * | 2012-11-12 | 2015-01-21 | 金堆城钼业股份有限公司 | Method for preparing molybdenum trioxide by calcining ammonium dimolybdate |
| CN103194624A (en) * | 2013-04-18 | 2013-07-10 | 金堆城钼业股份有限公司 | Method for preparing high-purity molybdenum trioxide |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110209 |