SU144988A1 - Method for extracting molybdenum from poor acid solutions by coprecipitation with ferrous hydroxide - Google Patents
Method for extracting molybdenum from poor acid solutions by coprecipitation with ferrous hydroxideInfo
- Publication number
- SU144988A1 SU144988A1 SU726140A SU726140A SU144988A1 SU 144988 A1 SU144988 A1 SU 144988A1 SU 726140 A SU726140 A SU 726140A SU 726140 A SU726140 A SU 726140A SU 144988 A1 SU144988 A1 SU 144988A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- molybdenum
- coprecipitation
- ferrous hydroxide
- acid solutions
- poor acid
- Prior art date
Links
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
Description
Дл извлечени молибдена из бедных растворов, образующих при производстве молибденовых солей, примен ютс : сорбци на ионнтах, осаждение трисульфида молибдена, осаждение ферромолибдата сол Аш трехвалентного железа, осаждение чернового молибдата кальци хлористым кальцием или известью.To remove molybdenum from poor solutions that form molybdenum salts during the production, the following materials are used: sorption on ions, precipitation of molybdenum trisulfide, precipitation of ferric molybdate Al salt of ferric iron, precipitation of black molybdate with calcium or lime.
Предлагаемый способ отличаетс простотой аппаратурного оформлени , незначительным расходом железа (1 кг железа на 1 кг молибдена ) и высокой степенью осаждени молибдена.The proposed method is characterized by the simplicity of the apparatus, low consumption of iron (1 kg of iron per 1 kg of molybdenum) and a high degree of molybdenum precipitation.
Дл осуществлени способа бедные, содержащие 0,5-1 г/л молибдена , кислые или щелочные, подкисленные до рН 3, растворы пропускают через колонку, заполненную железной стружкой. Железо восстанавливает молибден с образованием молибденовой сини, а образовавшеес двухвалентное железо переходит в раствор. Коллоидна молибденова синь сорбирует на своей поверхности ионы двухвалентного железа.In order to carry out the process, poor solutions containing 0.5-1 g / l molybdenum, acidic or alkaline, acidified to pH 3, are passed through a column filled with iron chips. Iron reduces molybdenum to form molybdenum blue, and the resulting ferrous iron goes into solution. Colloidal molybdenum blue absorbs bivalent iron ions on its surface.
Дл осаждени молибдена раствор добавлением соды доводитс до рН 6-7; в результате гидролиза образуетс гидроокись закисного железа, котора при коагул ции увлекает молибден. .To precipitate the molybdenum, the solution is adjusted to pH 6-7 by adding soda; as a result of hydrolysis, ferrous hydroxide is formed, which, when coagulated, entrains molybdenum. .
Предмет изобретени Subject invention
Способ извлечени молибдена из бедных кислых растворов соосаждением гидроокисью двухвалентного железа, отличающийс тем, что, с целью повыщепи выхода молибдена, исходные подкисленные до рН 2-3 молибденсодержащие растворы вначале обрабатывают в колонке, заполненной железной стружкой, а затем нейтрализуют до рН 6-7, например, содой дл совместного осаждени молибдена с гидроокисью закисного железа.The method of extracting molybdenum from poor acidic solutions by co-precipitating with ferrous hydroxide, characterized in that, in order to increase the yield of molybdenum, the initial molybdenum-containing solutions, acidified to pH 2-3, are first treated in a column filled with iron shavings and then neutralized to pH 6-7. for example, soda to co-precipitate molybdenum with ferrous hydroxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU726140A SU144988A1 (en) | 1961-04-10 | 1961-04-10 | Method for extracting molybdenum from poor acid solutions by coprecipitation with ferrous hydroxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU726140A SU144988A1 (en) | 1961-04-10 | 1961-04-10 | Method for extracting molybdenum from poor acid solutions by coprecipitation with ferrous hydroxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU144988A1 true SU144988A1 (en) | 1961-11-30 |
Family
ID=48300605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU726140A SU144988A1 (en) | 1961-04-10 | 1961-04-10 | Method for extracting molybdenum from poor acid solutions by coprecipitation with ferrous hydroxide |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU144988A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4219416A (en) * | 1978-06-29 | 1980-08-26 | Dravo Corporation | Process for recovering molybdenum and tungsten from mining wastewater |
-
1961
- 1961-04-10 SU SU726140A patent/SU144988A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4219416A (en) * | 1978-06-29 | 1980-08-26 | Dravo Corporation | Process for recovering molybdenum and tungsten from mining wastewater |
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