SU441313A1 - Method of extracting copper from acidic aqueous solutions and pulps by extraction - Google Patents
Method of extracting copper from acidic aqueous solutions and pulps by extractionInfo
- Publication number
- SU441313A1 SU441313A1 SU1849329A SU1849329A SU441313A1 SU 441313 A1 SU441313 A1 SU 441313A1 SU 1849329 A SU1849329 A SU 1849329A SU 1849329 A SU1849329 A SU 1849329A SU 441313 A1 SU441313 A1 SU 441313A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- extraction
- copper
- aqueous solutions
- acidic aqueous
- pulps
- Prior art date
Links
Landscapes
- Paper (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
1one
Изобретение относитс к области гидрометаллургии меди, в частности к извлечению ее из кислых водных растворов и пульп экстракцией .This invention relates to the field of copper hydrometallurgy, in particular, to extracting it from acidic aqueous solutions and slurries by extraction.
Известен способ извлечени меди из кислых водных растворов и пульп экстракцией соеди нени ми класса оксиоксимов.A method is known for extracting copper from acidic aqueous solutions and slurries by extraction with compounds of the class of oxyoximes.
Недостатком способа вл етс низка эффективность извлечени меди из кислых растворов с рН ниже 3.The disadvantage of this method is the low efficiency of copper recovery from acidic solutions with pH below 3.
Предлагаемый способ отличаетс тем, что экстракцию провод т смесью оксноксимов с полиалкилфосфонитрильными кислотами.The proposed method is characterized in that the extraction is carried out with a mixture of oxoximes with polyalkylphosphonitrile acids.
Это способствует повышению извлечени меди из растворов с рН 1 и ниже.This contributes to improved copper recovery from solutions with a pH of 1 and below.
При добавлении к полиалкилфосфопитрильным кислотам а-оксиоксимов коэффициент распределени меди возрастает в сотни раз и становитс возможной эффективна экстракци меди из более кислых растворов, чем при использовании каждого экстрагента в отдельности .When a-hydroxyoximes are added to polyalkylphosphopitrile acids, the distribution coefficient of copper increases hundreds of times and effective extraction of copper from more acidic solutions becomes possible than when using each extractant separately.
Пример. Проведена экстракци меди из раствора с концентрацией 1 г/л меди и I г/лExample. The extraction of copper from a solution with a concentration of 1 g / l copper and I g / l
железа при различном значении рП. В качестве экстрагента была применена смесь 0,2 Л полиалкилфосфонитрильной кислоты (ПАФНК ), полученной на основе 2-этилгексанола-1, и 0,2 М раствора оксиоксима. Оксиоксим имелgland with a different rp value. A mixture of 0.2 L of polyalkylphosphonitrile acid (PAFNA), prepared on the basis of 2-ethylhexanol-1, and a 0.2 M solution of oxyoxime, was used as the extractant. Oxyoxime had
следующее строение:following structure:
Проведенные опыты по экстракции меди из растворов с рН 2 показывают: если в случае применени отдельно вз тых экстрагентов медь практически не извлекаетс , то в случае использовани смеси экстрагентов в одну стадию медь экстрагируетс на 99%.The experiments performed on the extraction of copper from solutions with a pH of 2 show that if in the case of using separately taken extractants copper is practically not recovered, then in the case of using a mixture of extractants in one stage copper is extracted by 99%.
Предлагаемый способ позвол ет осуществить эффективное извлечение меди из более кислых растворов, открывает возможность дл извлечени меди из растворов переработки не только окисленных медных руд, но ц сульфидных.The proposed method allows efficient recovery of copper from more acidic solutions, which opens up the possibility of extracting copper from solutions of processing not only oxidized copper ores, but also sulphide ores.
Предмет изобретени Subject invention
Способ извлечени меди из кислых водных растворов и пульп экстракцией соединени ми класса оксиоксимов, отличающийс тем, что, с целью повышени извлечени меди из растворов с рН 1 и ниже, экстракцию провод т смесью оксиоксимов с полиалкилфосфонитрильными кислотами.The method of extracting copper from acidic aqueous solutions and pulps by extraction with compounds of the class of hydroxy oximes, characterized in that, in order to increase the recovery of copper from solutions with pH 1 and below, extraction is carried out with a mixture of hydroxy oximes with polyalkylphosphonitrile acids.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1849329A SU441313A1 (en) | 1972-11-23 | 1972-11-23 | Method of extracting copper from acidic aqueous solutions and pulps by extraction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1849329A SU441313A1 (en) | 1972-11-23 | 1972-11-23 | Method of extracting copper from acidic aqueous solutions and pulps by extraction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU441313A1 true SU441313A1 (en) | 1974-08-30 |
Family
ID=20532892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1849329A SU441313A1 (en) | 1972-11-23 | 1972-11-23 | Method of extracting copper from acidic aqueous solutions and pulps by extraction |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU441313A1 (en) |
-
1972
- 1972-11-23 SU SU1849329A patent/SU441313A1/en active
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