RU1614569C - Method of molybdenum-containing raw leaching - Google Patents
Method of molybdenum-containing raw leaching Download PDFInfo
- Publication number
- RU1614569C RU1614569C SU894694504A SU4694504A RU1614569C RU 1614569 C RU1614569 C RU 1614569C SU 894694504 A SU894694504 A SU 894694504A SU 4694504 A SU4694504 A SU 4694504A RU 1614569 C RU1614569 C RU 1614569C
- Authority
- RU
- Russia
- Prior art keywords
- molybdenum
- sodium hypochlorite
- leaching
- ore
- content
- Prior art date
Links
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 229910052750 molybdenum Inorganic materials 0.000 title claims abstract description 24
- 239000011733 molybdenum Substances 0.000 title claims abstract description 24
- 238000002386 leaching Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 9
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000005708 Sodium hypochlorite Substances 0.000 claims abstract description 13
- 238000000605 extraction Methods 0.000 claims abstract description 6
- 239000000243 solution Substances 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims 2
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000004090 dissolution Methods 0.000 abstract 1
- 230000007423 decrease Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 230000002262 irrigation Effects 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000005325 percolation Methods 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000013010 irrigating solution Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
Изобретение отноcится к горнодобывающей промышленности и может быть использовано для комплексной переработки бедных и забалансовых руд подземным, кучным и чановым выщелачиванием. The invention relates to the mining industry and can be used for integrated processing of poor and off-balance ores by underground, heap and vat leaching.
Цель изобретения - интенсификация процесса и повышение извлечения молибдена. The purpose of the invention is the intensification of the process and increase the extraction of molybdenum.
Способ осуществляют следующим образом. The method is as follows.
Подготавливают для выщелачивания молибденсодержащее сырье: забалансовую или балансовую руду. Определяют содержание в сырье молибдена. Производят приготовление раствора для выщелачивания путем растворения в воде гипохлорита натрия (NaClО), при этом содержание последнего в растворе устанавливают в соответствии с отношением гипохлорита натрия к содержанию молибдена в сырье (3-13):1. Орошение осуществляют циклически, чередуя его с окислительными паузами. Периодически на протяжении всего процесса выщелачивания до полного извлечения производят определение остаточного содержания молибдена в руде. В соответствии со значением остаточного содержания молибдена корректируют содержание гипохлорита натрия, поддерживая его соотношение с остаточным содержанием молибдена (3-13):1. Таким образом концентрацию выщелачивающего раствора уменьшают по мере выщелачивания. Molybdenum-containing raw materials are prepared for leaching: off-balance or balance ore. The content of molybdenum in the feed is determined. A leach solution is prepared by dissolving sodium hypochlorite (NaClO) in water, while the content of the latter in the solution is set in accordance with the ratio of sodium hypochlorite to the molybdenum content in the feedstock (3-13): 1. Irrigation is carried out cyclically, alternating it with oxidative pauses. Periodically throughout the leaching process until complete extraction, the residual content of molybdenum in the ore is determined. In accordance with the value of the residual molybdenum content, the sodium hypochlorite content is adjusted, maintaining its ratio with the residual molybdenum content (3-13): 1. Thus, the concentration of the leach solution is reduced as the leach.
Проводят опыты по выщелачиванию молибденсодержащего сульфидного сырья методом перколяции из руды крупностью (-0,63-0) мм пробы 0,3 кг. Окислительный период 2 сут, плотность орошения 200 л/т. В качестве объекта исследования используют руду с содержанием молибдена 0,1555%. При отношении гипохлорита к содержанию молибдена больше 13 и меньше 3 происходит уменьшение скорости выщелачивания металла в раствор. Скорости извлечения молибдена растворами гипохлорита натрия концентраций 54 и 80 г/л соответственно равны 5,7 и 5% в 1 сут. Понижение скорости выщелачивания в циклах зависит от наступающего истощения, благоприятного для выщелачивания содержания молибдена в сырье и уменьшения степени активности поверхности вследствие ее окисления. Experiments are carried out on leaching of molybdenum-containing sulfide raw materials by percolation from ore with a fineness of (-0.63-0) mm sample 0.3 kg. The oxidative period is 2 days, the irrigation density is 200 l / t. Ore with a molybdenum content of 0.1555% is used as an object of study. When the ratio of hypochlorite to the molybdenum content is greater than 13 and less than 3, the rate of leaching of the metal into the solution decreases. The extraction rates of molybdenum with sodium hypochlorite solutions of concentrations 54 and 80 g / l, respectively, are 5.7 and 5% per day. A decrease in the leaching rate in cycles depends on the onset of depletion, which is favorable for leaching the molybdenum content in the feed and reducing the degree of surface activity due to its oxidation.
Опыты по выщелачиванию молибдена из руды в перколяционном варианте были проведены с подачей раствора гипохлорита натрия как постоянной концентрации, так и с концентрациями, соответствующими соотношению NaClО:Мо. Поддержание отношения на определенном уровне позволяет повысить извлечение молибдена из руды в раствор по сравнению с вариантом подачи орошающего раствора с постоянной концентрацией. The experiments on the leaching of molybdenum from ore in the percolation version were carried out with the supply of sodium hypochlorite solution both at a constant concentration and with concentrations corresponding to the ratio of NaClO: Mo. Maintaining the ratio at a certain level allows to increase the extraction of molybdenum from ore into the solution in comparison with the option of supplying an irrigating solution with a constant concentration.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU894694504A RU1614569C (en) | 1989-05-24 | 1989-05-24 | Method of molybdenum-containing raw leaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU894694504A RU1614569C (en) | 1989-05-24 | 1989-05-24 | Method of molybdenum-containing raw leaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| RU1614569C true RU1614569C (en) | 1994-10-30 |
Family
ID=30441349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU894694504A RU1614569C (en) | 1989-05-24 | 1989-05-24 | Method of molybdenum-containing raw leaching |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU1614569C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130133485A1 (en) * | 2010-03-18 | 2013-05-30 | Metaleach Limited | Method of oxidative leaching of molybdenum-rhenium sulfide ores and/or concentrates |
-
1989
- 1989-05-24 RU SU894694504A patent/RU1614569C/en active
Non-Patent Citations (2)
| Title |
|---|
| Авторское свидетельство СССР N 632743, кл. C 22B 3/00, 1970. * |
| Зеликман А.Н. Окисление молибденита кислородом в азотносернокислых растворах. Цветные металлы, 1985, N 10, с.72. * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130133485A1 (en) * | 2010-03-18 | 2013-05-30 | Metaleach Limited | Method of oxidative leaching of molybdenum-rhenium sulfide ores and/or concentrates |
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