CN104070176A - Production method for preparing superfine molybdenum powder in low temperature reduction mode - Google Patents
Production method for preparing superfine molybdenum powder in low temperature reduction mode Download PDFInfo
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- CN104070176A CN104070176A CN201410328992.0A CN201410328992A CN104070176A CN 104070176 A CN104070176 A CN 104070176A CN 201410328992 A CN201410328992 A CN 201410328992A CN 104070176 A CN104070176 A CN 104070176A
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- reduction
- temperature
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- molybdenum powder
- low temperature
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Abstract
The invention discloses an energy-saving and environment-friendly production method for preparing superfine molybdenum powder in a low temperature reduction mode. According to the technical scheme, the production method for preparing superfine molybdenum powder in the low temperature reduction mode is characterized by comprising the following steps that (1) primary reduction is conducted, ammonium molybdate is placed into a first single-tube reduction furnace for conducting primary reduction, the reduction temperature is 450 DEG C, the constant temperature power is two kilowatts, the hydrogen consumption amount is 3 cubic meters per hour, and the reduction time is 60-90 minutes; (2) secondary reduction is conducted, a product after primary reduction in the first step is placed into a second single-tube reduction furnace for conducting secondary reduction, the reduction temperature is 750 DEG C, and the reduction time is 60-90 minutes.
Description
Technical field
The invention belongs to Mo powder production method field, especially a kind of low-temperature reduction of energy-conserving and environment-protective is produced the production method of ultrafine molybdenum powder.
Background technology
At present, common Mo powder production method adopts rotary furnace and 13 pipe electric furnaces to reduce processing, and the problem of existence is that the high power consumption of temperature is large, wastes energy.
Summary of the invention
The low-temperature reduction that the object of this invention is to provide a kind of energy-conserving and environment-protective is produced the production method of ultrafine molybdenum powder.
The technical solution adopted in the present invention is: low-temperature reduction is produced the production method of ultrafine molybdenum powder, it is characterized in that comprising the following steps:
Low-temperature reduction is produced the production method of ultrafine molybdenum powder, it is characterized in that comprising the following steps:
(1) once reduction: ammonium molybdate is put into the first single tube reduction furnace and once reduce, reduction temperature: 450 ℃, warm power weighs: 2 kilowatts, hydrogen-consuming volume: 3 cubes ms/h, the recovery time is 60-90 minute;
(2) secondary reduction: carry out secondary reduction by putting into the second single tube reduction furnace through the product once reducing in step (1), reduction temperature: 750 ℃, warm power weighs: 5 kilowatts, push away boat speed: 2 boat/10 minute, hydrogen-consuming volume: 3 cubes ms/h, the recovery time is 60-90 minute.
Effect of the present invention is: low-temperature reduction is produced the production method of ultrafine molybdenum powder, comprises the following steps: that (1) once reduce: reduction temperature: 450 ℃; (2) secondary reduction: reduction temperature: 750 ℃.Reduction temperature significantly reduces than common reducing process, saves the energy, experimental results show that low-temperature reduction method of the present invention is than common reducing process electricity unit consumption saving 1/3.
Below in conjunction with not limiting embodiment, the present invention is described further.
The specific embodiment
Low-temperature reduction is produced the production method of ultrafine molybdenum powder, comprises the following steps:
(1) once reduction: ammonium molybdate is put into the first single tube reduction furnace and once reduce, reduction temperature: 450 ℃, warm power weighs: 2 kilowatts, hydrogen-consuming volume: 3 cubes ms/h, the recovery time is 60-90 minute;
(2) secondary reduction: carry out secondary reduction by putting into the second single tube reduction furnace through the product once reducing in step (1), reduction temperature: 750 ℃, warm power weighs: 5 kilowatts, push away boat speed: 2 boat/10 minute, hydrogen-consuming volume: 3 cubes ms/h, the recovery time is 60-90 minute.
Claims (1)
1. low-temperature reduction is produced the production method of ultrafine molybdenum powder, it is characterized in that comprising the following steps:
(1) once reduction: ammonium molybdate is put into the first single tube reduction furnace and once reduce, reduction temperature: 450 ℃, warm power weighs: 2 kilowatts, hydrogen-consuming volume: 3 cubes ms/h, the recovery time is 60-90 minute;
(2) secondary reduction: carry out secondary reduction by putting into the second single tube reduction furnace through the product once reducing in step (1), reduction temperature: 750 ℃, warm power weighs: 5 kilowatts, push away boat speed: 2 boat/10 minute, hydrogen-consuming volume: 3 cubes ms/h, the recovery time is 60-90 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410328992.0A CN104070176A (en) | 2014-07-11 | 2014-07-11 | Production method for preparing superfine molybdenum powder in low temperature reduction mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410328992.0A CN104070176A (en) | 2014-07-11 | 2014-07-11 | Production method for preparing superfine molybdenum powder in low temperature reduction mode |
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| CN104070176A true CN104070176A (en) | 2014-10-01 |
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| CN201410328992.0A Pending CN104070176A (en) | 2014-07-11 | 2014-07-11 | Production method for preparing superfine molybdenum powder in low temperature reduction mode |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458280A (en) * | 2016-01-12 | 2016-04-06 | 金堆城钼业股份有限公司 | Preparation method for highly-dispersed ultrafine molybdenum powder with narrow particle size distribution |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4859236A (en) * | 1988-04-25 | 1989-08-22 | Gte Products Corporation | Process for producing molybdenum-ruthenium metal powder |
| CN101758241A (en) * | 2010-02-05 | 2010-06-30 | 金堆城钼业股份有限公司 | Method for preparing submicron molybdenum powder |
| CN101966593A (en) * | 2010-11-01 | 2011-02-09 | 金堆城钼业股份有限公司 | Submicron molybdenum powder production method |
| CN102601385A (en) * | 2012-04-18 | 2012-07-25 | 金堆城钼业股份有限公司 | Preparation method of molybdenum powder |
| CN103286317A (en) * | 2013-06-30 | 2013-09-11 | 金堆城钼业股份有限公司 | Method for preparing molybdenum powder by ammonium molybdate |
-
2014
- 2014-07-11 CN CN201410328992.0A patent/CN104070176A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4859236A (en) * | 1988-04-25 | 1989-08-22 | Gte Products Corporation | Process for producing molybdenum-ruthenium metal powder |
| CN101758241A (en) * | 2010-02-05 | 2010-06-30 | 金堆城钼业股份有限公司 | Method for preparing submicron molybdenum powder |
| CN101966593A (en) * | 2010-11-01 | 2011-02-09 | 金堆城钼业股份有限公司 | Submicron molybdenum powder production method |
| CN102601385A (en) * | 2012-04-18 | 2012-07-25 | 金堆城钼业股份有限公司 | Preparation method of molybdenum powder |
| CN103286317A (en) * | 2013-06-30 | 2013-09-11 | 金堆城钼业股份有限公司 | Method for preparing molybdenum powder by ammonium molybdate |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458280A (en) * | 2016-01-12 | 2016-04-06 | 金堆城钼业股份有限公司 | Preparation method for highly-dispersed ultrafine molybdenum powder with narrow particle size distribution |
| CN105458280B (en) * | 2016-01-12 | 2017-09-12 | 金堆城钼业股份有限公司 | A kind of preparation method of high dispersive, narrow size distribution ultrafine molybdenum powder |
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Application publication date: 20141001 |
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