CN102251121A - Method for preparing industrial molybdenum trioxide by roasting ammonia leaching residue - Google Patents
Method for preparing industrial molybdenum trioxide by roasting ammonia leaching residue Download PDFInfo
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- CN102251121A CN102251121A CN2011101876048A CN201110187604A CN102251121A CN 102251121 A CN102251121 A CN 102251121A CN 2011101876048 A CN2011101876048 A CN 2011101876048A CN 201110187604 A CN201110187604 A CN 201110187604A CN 102251121 A CN102251121 A CN 102251121A
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- leaching residue
- ammonia leaching
- molybdenum
- roasting
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The invention discloses a method for preparing industrial molybdenum trioxide by roasting ammonia leaching residue, which comprises the following steps: evenly mixing ammonia leaching residue and molybdenum concentrate in a mass ratio of 1:(4-6), putting the mixture in a rotary kiln, and roasting at 450-680 DEG C for 5-8 hours to obtain the industrial molybdenum trioxide. The preparation method disclosed by the invention is simple, shortens the metallic molybdenum technological process in recycling ammonia leaching residue, lowers the requirement for equipment material and the cost for recycling molybdenum, and increases the metal recovery rate of the ammonia leaching residue. The industrial molybdenum trioxide prepared by the method disclosed by the invention satisfies the requirements for producing ammonium molybdate, ferromolybdenum and other products.
Description
Technical field
The invention belongs to industrial molybdic oxide preparing technical field, be specifically related to the method that a kind of roasting ammonia leaching residue prepares industrial molybdic oxide.
Background technology
Along with social progress, science and technology development, the molybdenum Application Areas is widened day by day, the molybdenum demand strengthens day by day, and therefore human exploitation molybdenum resource paces are more and more fast, and non-renewable molybdenum resource faces exhausted danger, so, the recycling of molybdenum resource is had the important strategic meaning.
Ammonium molybdate is widely used in the production of metal molybdenum goods and heavy chemicals, and calcining molybdenum concentrate → nitric acid commonly used embathes → ammoniacal liquor leaches → purify → add the Acid precipitation explained hereafter.Yet produced the ammonia leaching residue that pile up like a mountain (waste residue) when producing ammonium molybdate, a large amount of ammonia leaching residues accounts for certain space (waste residue factory), the enlarging of waste residue factory, maintenance need certain expense, increased the production cost of ammonium molybdate, metal molybdenum need be able to further recycling in the ammonia leaching residue simultaneously, alleviates the pressure of social economy's growth to social resources.
Metal molybdenum is a historical research topic in the recovery ammonia leaching residue, and according to the metal molybdenum reaction environment characteristics that reclaim in the ammonia leaching residue, can be divided into two kinds of methods to metal molybdenum in the recovery ammonia leaching residue: hydrometallurgic recovery (acid decomposition) and pyrogenic process reclaim (soda roasting method).Acid decomposition reclaims the molybdenum in the ammonia leaching residue, and operation is more, and labour intensity is big, and the rate of recovery is not high, has serious pollution problem, and raw and auxiliary material consumption simultaneously is many, product cost height, deficiency in economic performance; The molybdenum shortcoming that the soda roasting method reclaims in the ammonia leaching residue is to use yellow soda ash, has the etching apparatus problem, and in and crystalline mother liquor, washing lotion still need recycle, and need set up secondary flow journey and equipment.
Summary of the invention
Technical problem to be solved by this invention is at above-mentioned the deficiencies in the prior art, provide a kind of roasting ammonia leaching residue to prepare the method for industrial molybdic oxide, this preparation method is simple, shortened metal molybdenum technical process in the recovery ammonia leaching residue, reduced the cost of equipment material requirement and recovery molybdenum, improve the metal recovery rate of ammonia leaching residue, adopted the satisfied requirement of producing products such as ammonium molybdate, molybdenum-iron of industrial molybdic oxide of the inventive method preparation.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of roasting ammonia leaching residue prepares the method for industrial molybdic oxide, it is characterized in that, this method is: ammonia leaching residue and concentrated molybdenum ore are mixed according to 1: 4～6 mass ratio, then mixture is placed kiln, be roasting 5h～8h under 450 ℃～680 ℃ the condition at maturing temperature, obtain industrial molybdic oxide.
Above-mentioned roasting ammonia leaching residue prepares the method for industrial molybdic oxide, and the quality percentage composition of molybdenum is 7%～21% in the described ammonia leaching residue.
Above-mentioned roasting ammonia leaching residue prepares the method for industrial molybdic oxide, and the quality percentage composition of molybdenum is 57% in the described concentrated molybdenum ore.
Above-mentioned roasting ammonia leaching residue prepares the method for industrial molybdic oxide, and described maturing temperature is 500 ℃～680 ℃.
Above-mentioned roasting ammonia leaching residue prepares the method for industrial molybdic oxide, and the quality percentage composition of Mo is not less than 44.8% in the described industrial molybdic oxide, and the quality percentage composition of P is not more than 0.02%, and the quality percentage composition of S is not more than 0.06%.
The present invention compared with prior art has the following advantages: preparation method of the present invention is simple, shortened metal molybdenum technical process in the recovery ammonia leaching residue, reduced the cost of equipment material requirement and recovery molybdenum, improved the metal recovery rate of ammonia leaching residue, the industrial molybdic oxide of preparation satisfies the requirement of products such as producing ammonium molybdate, molybdenum-iron.
Below by embodiment, technical scheme of the present invention is described in further detail.
Embodiment
Embodiment 1
With molybdenum quality percentage composition is that to be 57% concentrated molybdenum ore mix according to 1: 4 mass ratio for 7% ammonia leaching residue and molybdenum quality percentage composition, then mixture is placed kiln, be roasting 8h under 450 ℃ the condition at maturing temperature, obtain industrial molybdic oxide.
(there is error in actual detected) after testing, the quality percentage composition of Mo is 44.8% in the industrial molybdic oxide of present embodiment preparation, the quality percentage composition of P is 0.016%, and the quality percentage composition of S is 0.037%, satisfies the requirement of products such as producing ammonium molybdate, molybdenum-iron.
Embodiment 2
With molybdenum quality percentage composition is that to be 57% concentrated molybdenum ore mix according to 1: 4 mass ratio for 21% ammonia leaching residue and molybdenum quality percentage composition, then mixture is placed kiln, be roasting 7h under 500 ℃ the condition at maturing temperature, obtain industrial molybdic oxide.
(there is error in actual detected) after testing, the quality percentage composition of Mo is 46.5% in the industrial molybdic oxide of present embodiment preparation, the quality percentage composition of P is 0.02%, and the quality percentage composition of S is 0.05%, satisfies the requirement of products such as producing ammonium molybdate, molybdenum-iron.
Embodiment 3
With molybdenum quality percentage composition is that to be 57% concentrated molybdenum ore mix according to 1: 5 mass ratio for 14% ammonia leaching residue and molybdenum quality percentage composition, then mixture is placed kiln, be roasting 5h under 680 ℃ the condition at maturing temperature, obtain industrial molybdic oxide.
(there is error in actual detected) after testing, the quality percentage composition of Mo is 45.3% in the industrial molybdic oxide of present embodiment preparation, the quality percentage composition of P is 0.012%, and the quality percentage composition of S is 0.04%, satisfies the requirement of products such as producing ammonium molybdate, molybdenum-iron.
Embodiment 4
With molybdenum quality percentage composition is that to be 57% concentrated molybdenum ore mix according to 1: 4 mass ratio for 20% ammonia leaching residue and molybdenum quality percentage composition, then mixture is placed kiln, be roasting 7h under 600 ℃ the condition at maturing temperature, obtain industrial molybdic oxide.
(there is error in actual detected) after testing, the quality percentage composition of Mo is 45.9% in the industrial molybdic oxide of present embodiment preparation, the quality percentage composition of P is 0.015%, and the quality percentage composition of S is 0.06%, satisfies the requirement of products such as producing ammonium molybdate, molybdenum-iron.
Embodiment 5
With molybdenum quality percentage composition is that to be 57% concentrated molybdenum ore mix according to 1: 6 mass ratio for 15% ammonia leaching residue and molybdenum quality percentage composition, then mixture is placed kiln, be roasting 8h under 480 ℃ the condition at maturing temperature, obtain industrial molybdic oxide.
(there is error in actual detected) after testing, the quality percentage composition of Mo is 47.5% in the industrial molybdic oxide of present embodiment preparation, the quality percentage composition of P is 0.011%, and the quality percentage composition of S is 0.017%, satisfies the requirement of products such as producing ammonium molybdate, molybdenum-iron.
The above; it only is preferred embodiment of the present invention; be not that the present invention is done any restriction, everyly any simple modification that above embodiment did, change and equivalent structure changed, all still belong in the protection domain of technical solution of the present invention according to the invention technical spirit.
Claims (5)
1. a roasting ammonia leaching residue prepares the method for industrial molybdic oxide, it is characterized in that, this method is: ammonia leaching residue and concentrated molybdenum ore are mixed according to 1: 4～6 mass ratio, then mixture is placed kiln, be roasting 5h～8h under 450 ℃～680 ℃ the condition at maturing temperature, obtain industrial molybdic oxide.
2. roasting ammonia leaching residue according to claim 1 prepares the method for industrial molybdic oxide, it is characterized in that, the quality percentage composition of molybdenum is 7%～21% in the described ammonia leaching residue.
3. roasting ammonia leaching residue according to claim 1 prepares the method for industrial molybdic oxide, it is characterized in that, the quality percentage composition of molybdenum is 57% in the described concentrated molybdenum ore.
4. roasting ammonia leaching residue according to claim 1 prepares the method for industrial molybdic oxide, it is characterized in that, described maturing temperature is 500 ℃～680 ℃.
5. roasting ammonia leaching residue according to claim 1 prepares the method for industrial molybdic oxide, it is characterized in that, the quality percentage composition of Mo is not less than 44.8% in the described industrial molybdic oxide, and the quality percentage composition of P is not more than 0.02%, and the quality percentage composition of S is not more than 0.06%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101876048A CN102251121A (en) | 2011-07-06 | 2011-07-06 | Method for preparing industrial molybdenum trioxide by roasting ammonia leaching residue |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104152707A (en) * | 2014-08-28 | 2014-11-19 | 金堆城钼业股份有限公司 | Method for smelting ferro-molybdenum from ammonia leaching residue to recover molybdenum |
| CN104975219A (en) * | 2015-05-29 | 2015-10-14 | 洛阳钼业集团金属材料有限公司 | Ferro-molybdenum smelting method based on effective oxygen content in roasted molybdenum concentrate |
| CN107140688A (en) * | 2017-05-26 | 2017-09-08 | 成都铬科高化工技术有限责任公司 | A kind of oxygen-enriched air roasting method that molybdenum trioxide is prepared by molybdenite concentrate |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061388A (en) * | 2010-10-12 | 2011-05-18 | 金堆城钼业股份有限公司 | Method for smelting ferromolybdenum by utilizing molybdenum scrap |
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2011
- 2011-07-06 CN CN2011101876048A patent/CN102251121A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061388A (en) * | 2010-10-12 | 2011-05-18 | 金堆城钼业股份有限公司 | Method for smelting ferromolybdenum by utilizing molybdenum scrap |
Non-Patent Citations (1)
| Title |
|---|
| 《昆明理工大学学报》 19981231 但勇等 杂质含量高的钼精矿生产钼酸氨的新方法 第113页 1-5 第23卷, 第6期 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104152707A (en) * | 2014-08-28 | 2014-11-19 | 金堆城钼业股份有限公司 | Method for smelting ferro-molybdenum from ammonia leaching residue to recover molybdenum |
| CN104152707B (en) * | 2014-08-28 | 2016-03-16 | 金堆城钼业股份有限公司 | A kind of ammonia leaching residue Smelting Ferromolybdenum reclaims the method for molybdenum |
| CN104975219A (en) * | 2015-05-29 | 2015-10-14 | 洛阳钼业集团金属材料有限公司 | Ferro-molybdenum smelting method based on effective oxygen content in roasted molybdenum concentrate |
| CN107140688A (en) * | 2017-05-26 | 2017-09-08 | 成都铬科高化工技术有限责任公司 | A kind of oxygen-enriched air roasting method that molybdenum trioxide is prepared by molybdenite concentrate |
| CN107140688B (en) * | 2017-05-26 | 2019-09-17 | 成都铬科高化工技术有限责任公司 | A kind of oxygen-enriched air roasting method preparing molybdenum trioxide by molybdenite concentrate |
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Application publication date: 20111123 |