SU130879A1 - The method of separation of molybdenum from solutions containing nitric and sulfuric acid - Google Patents
The method of separation of molybdenum from solutions containing nitric and sulfuric acidInfo
- Publication number
- SU130879A1 SU130879A1 SU650425A SU650425A SU130879A1 SU 130879 A1 SU130879 A1 SU 130879A1 SU 650425 A SU650425 A SU 650425A SU 650425 A SU650425 A SU 650425A SU 130879 A1 SU130879 A1 SU 130879A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- molybdenum
- solutions containing
- separation
- sulfuric acid
- containing nitric
- Prior art date
Links
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- Inorganic Compounds Of Heavy Metals (AREA)
- Fertilizers (AREA)
Description
Способ выделени молибдена из растворов, содержащих азотную и серные кислоты, с применением прокаливани известен.The method for separating molybdenum from solutions containing nitric and sulfuric acids using calcination is known.
Описываемый способ выделени молибдена в отличие от известного повышает выход продукта и осуществл етс в услови х, исключающих коррозию аппаратуры смесью кислот при повышенной температуре. Это достигаетс тем, что сначала кислый раствор нейтрализуют аммиаком до , а затем выпаривают до образовани смеси солей NH4N03. (NH4)2SO4. (NH4)2MoO4 и полу.ченный осадок прокаливают при температуре 500-600The described method for the isolation of molybdenum, in contrast to the known method, increases the yield of the product and is carried out under conditions that prevent the equipment from corroding with a mixture of acids at elevated temperatures. This is achieved by first neutralizing the acidic solution with ammonia before and then evaporating to form a mixture of the NH4N03 salts. (NH4) 2SO4. (NH4) 2MoO4 and semi-precipitate calcined at a temperature of 500-600
Прокаливание осадка ведут до получени чистого молибденового ангидрида. Удал юша с при прокаливании соль NH4HSO4 может быть уловлена в вентил ционном устройстве. Выход продукта составл ет 95-98%. Вследствие возможности проведени процессов нейтрализации и выпаривани в чугунной эмалированной аппаратуре способ легко осушествим в нроизводстве.The calcination of the precipitate is carried out to obtain pure molybdenum anhydride. Removing the calcined NH4HSO4 salt can be trapped in a ventilation device. The product yield is 95-98%. Due to the possibility of carrying out the processes of neutralization and evaporation in cast-iron enamelled apparatus, the method is easily implemented in manufacture.
Расход аммиака, составл ющий 1 объем 25%-ного аммиака к 1 объем кислого раствора, компенсируетс дополнительным получением соли (NH4)2SO4, котора может быть использована в качестве химического удобрени . Кроме того, расход аммиака на нейтрализацию может быть снижен путем дорастворени молибденовых отходов производства в отработанной смеси кислот до удалени азотной кислоты.The consumption of ammonia, constituting 1 volume of 25% ammonia to 1 volume of acidic solution, is compensated by additionally obtaining salt (NH4) 2SO4, which can be used as chemical fertilizer. In addition, the ammonia consumption for neutralization can be reduced by dissolving molybdenum waste in the waste acid mixture before removing nitric acid.
Предмет изобретеии Subject of invention
Способ выделени молибдена из растворов, содержащих азотную и сериую кислоты, с применением прокаливани , отличающийс тем, что, с целью повышени выхода молибдена и осуществлени способа вA method of separating molybdenum from solutions containing nitric and seric acids using calcination, characterized in that, in order to increase the yield of molybdenum and to carry out the process in
№ 130879 2 услови х , исключающих коррозию аппаратуры смесью кислот при повышенной температуре, сначала кислый раствор нейтрализуют аммиаком до , а затем выпаривают до об азовани смеси солей NH4N03 (NH4)2SO4: (NH4),2MoO4 И полученный осадок прокаливают при температуре 500-600°.No. 130879 2 conditions excluding corrosion of the equipment with a mixture of acids at elevated temperature; first, the acidic solution is neutralized with ammonia before, and then evaporated to form a mixture of NH4N03 (NH4) 2SO4 salts: (NH4), 2MoO4 And the resulting precipitate is calcined at 500-600 °
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU650425A SU130879A1 (en) | 1960-01-11 | 1960-01-11 | The method of separation of molybdenum from solutions containing nitric and sulfuric acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU650425A SU130879A1 (en) | 1960-01-11 | 1960-01-11 | The method of separation of molybdenum from solutions containing nitric and sulfuric acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU130879A1 true SU130879A1 (en) | 1960-11-30 |
Family
ID=48401986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU650425A SU130879A1 (en) | 1960-01-11 | 1960-01-11 | The method of separation of molybdenum from solutions containing nitric and sulfuric acid |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU130879A1 (en) |
-
1960
- 1960-01-11 SU SU650425A patent/SU130879A1/en active
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