RU2014152467A - METHOD FOR THERMOCHEMICAL PROCESSING OF RARE METAL RAW MATERIALS - Google Patents
METHOD FOR THERMOCHEMICAL PROCESSING OF RARE METAL RAW MATERIALS Download PDFInfo
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- RU2014152467A RU2014152467A RU2014152467A RU2014152467A RU2014152467A RU 2014152467 A RU2014152467 A RU 2014152467A RU 2014152467 A RU2014152467 A RU 2014152467A RU 2014152467 A RU2014152467 A RU 2014152467A RU 2014152467 A RU2014152467 A RU 2014152467A
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- RU
- Russia
- Prior art keywords
- phosphate
- charge
- processing
- ferroniobium
- granulated
- Prior art date
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- Manufacture And Refinement Of Metals (AREA)
- Fertilizers (AREA)
Abstract
Способ переработки редкометального сырья, включающий подготовку шихты, ликвационную плавку в рудотермической печи и термохимическую переработку ликвантов в целевые продукты, отличающийся тем, что подготовку шихты проводят в две стадии, на первой усредняют состав фосфатно-силикатного минерального сырья до содержания основных компонентов, добавляют в сырье фторид натрия в диапазоне 6-20 мас.% и гранулируют шихтовый материал во вращающейся обжиговой барабанной печи в атмосфере воздуха при рабочей температуре 800-850°С, на второй стадии гранулированный шихтовый материал направляют в отражательную плавильную печь при рабочей температуре 1000-1200°С для ликвационной плавки материала; гравитационно разделенные фосфатно-солевой и железосодержащий алюмосиликатный расплавы выпускают из плавильной печи, гранулируют и перерабатывают в целевые продукты путем кислотного разложения фосфатно-солевого расплава для получения редких земель и фосфатных удобрений и путем восстановительной углетермической плавки железосодержащего алюмосиликатного расплава для получения феррониобия и целевых продуктов в виде тяжелых металлов, после чего отходы переработки направляют в голову процесса.A method of processing rare-metal raw materials, including preparation of the charge, liquor smelting in an ore-thermal furnace, and thermochemical processing of liquants into target products, characterized in that the preparation of the charge is carried out in two stages, at the first, the composition of the phosphate-silicate mineral raw material is averaged to the content of the main components, added to the raw material sodium fluoride in the range of 6-20 wt.% and charge material is granulated in a rotary kiln in an air atmosphere at an operating temperature of 800-850 ° C, in the second stage lirovannye charge material is sent to a reflective melting furnace at an operating temperature of 1000-1200 ° C for segregation of material; Gravitationally separated phosphate-salt and iron-containing aluminosilicate melts are discharged from the smelter, granulated and processed into target products by acid decomposition of the phosphate-salt melt to produce rare earths and phosphate fertilizers and by reducing carbon-thermal smelting of iron-containing aluminosilicate melt to produce ferroniobium in the form of ferroniobium heavy metals, after which the processing waste is sent to the head of the process.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2014152467/02A RU2592655C2 (en) | 2014-12-24 | 2014-12-24 | Method of thermochemical processing of rare metal raw material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2014152467/02A RU2592655C2 (en) | 2014-12-24 | 2014-12-24 | Method of thermochemical processing of rare metal raw material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2014152467A true RU2014152467A (en) | 2016-07-20 |
| RU2592655C2 RU2592655C2 (en) | 2016-07-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2014152467/02A RU2592655C2 (en) | 2014-12-24 | 2014-12-24 | Method of thermochemical processing of rare metal raw material |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2592655C2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106148736A (en) * | 2016-08-04 | 2016-11-23 | 北京科技大学 | Ferrum, slag and the device and method of rare-earth phase in cryogenic separation Rare Earth Mine reduced ore |
| DE102016106591A1 (en) * | 2016-04-11 | 2017-10-12 | Meab Chemie Technik Gmbh | Stabilization of silicon in the processing of silicon-containing ores containing rare earth metals |
| CN112322890A (en) * | 2020-10-27 | 2021-02-05 | 长沙矿冶研究院有限责任公司 | Method for producing high-grade niobium concentrate by reducing and melting niobium rough concentrate in two sections |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1008676A (en) * | 1960-11-17 | 1965-11-03 | Laporte Titanium Ltd | Improvements in and relating to the manufacture of titanium dioxide |
| US5266289A (en) * | 1989-11-16 | 1993-11-30 | Nissan Chemical Industries Ltd. | Process for producing high-purity silica by reacting crude silica with ammonium fluoride |
| CA2171185A1 (en) * | 1993-09-07 | 1995-03-16 | Ross Alexander Mcclelland | Upgrading titaniferous materials |
| AUPM511894A0 (en) * | 1994-04-15 | 1994-05-12 | Technological Resources Pty Limited | Treatment of leach liquors for upgrading a titaniferous material |
| RU2097321C1 (en) * | 1996-02-20 | 1997-11-27 | Институт химии Дальневосточного отделения РАН | Method for producing ammonium hexafluorosilicate |
| RU2157523C1 (en) * | 1999-11-01 | 2000-10-10 | Государственное учреждение - Институт химии Дальневосточного отделения РАН | Method of determining silicon |
| RU110735U1 (en) * | 2011-06-28 | 2011-11-27 | Гелий Борисович Мелентьев | SYSTEM OF THERMOCHEMICAL PROCESSING OF RARE METAL RAW MATERIALS |
-
2014
- 2014-12-24 RU RU2014152467/02A patent/RU2592655C2/en active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016106591A1 (en) * | 2016-04-11 | 2017-10-12 | Meab Chemie Technik Gmbh | Stabilization of silicon in the processing of silicon-containing ores containing rare earth metals |
| CN106148736A (en) * | 2016-08-04 | 2016-11-23 | 北京科技大学 | Ferrum, slag and the device and method of rare-earth phase in cryogenic separation Rare Earth Mine reduced ore |
| CN106148736B (en) * | 2016-08-04 | 2019-02-15 | 北京科技大学 | The device and method of iron, slag and rare-earth phase in cryogenic separation Rare Earth Mine reduced ore |
| CN112322890A (en) * | 2020-10-27 | 2021-02-05 | 长沙矿冶研究院有限责任公司 | Method for producing high-grade niobium concentrate by reducing and melting niobium rough concentrate in two sections |
| CN112322890B (en) * | 2020-10-27 | 2021-08-31 | 长沙矿冶研究院有限责任公司 | Method for producing high-grade niobium concentrate by reducing and melting niobium rough concentrate in two sections |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2592655C2 (en) | 2016-07-27 |
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