RU2229526C2 - Method for extraction of zinc ions from aqueous solutions - Google Patents
Method for extraction of zinc ions from aqueous solutions Download PDFInfo
- Publication number
- RU2229526C2 RU2229526C2 RU2002111625/02A RU2002111625A RU2229526C2 RU 2229526 C2 RU2229526 C2 RU 2229526C2 RU 2002111625/02 A RU2002111625/02 A RU 2002111625/02A RU 2002111625 A RU2002111625 A RU 2002111625A RU 2229526 C2 RU2229526 C2 RU 2229526C2
- Authority
- RU
- Russia
- Prior art keywords
- extraction
- zinc ions
- aqueous solutions
- extractant
- carried out
- Prior art date
Links
- 238000000605 extraction Methods 0.000 title claims abstract description 18
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 title claims abstract description 10
- 239000007864 aqueous solution Substances 0.000 title claims description 6
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims abstract description 4
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims abstract description 4
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000005642 Oleic acid Substances 0.000 claims abstract description 4
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims abstract description 4
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims abstract description 4
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims abstract description 4
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 238000009851 ferrous metallurgy Methods 0.000 abstract description 2
- 238000009856 non-ferrous metallurgy Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 1
- 239000010865 sewage Substances 0.000 abstract 1
- 238000004065 wastewater treatment Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 239000008346 aqueous phase Substances 0.000 description 7
- 239000012074 organic phase Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 239000003085 diluting agent Substances 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000010705 motor oil Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000005363 electrowinning Methods 0.000 description 2
- 239000003701 inert diluent Substances 0.000 description 2
- 239000003350 kerosene Substances 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000010840 domestic wastewater Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
- 229960001763 zinc sulfate Drugs 0.000 description 1
- 229910000368 zinc sulfate Inorganic materials 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
- Removal Of Specific Substances (AREA)
Abstract
Description
Изобретение относится к извлечению веществ органическими экстрагентами из водных растворов и может быть использовано в цветной и черной металлургии, а также для очистки промышленных и бытовых стоков.The invention relates to the extraction of substances by organic extractants from aqueous solutions and can be used in non-ferrous and ferrous metallurgy, as well as for the treatment of industrial and domestic wastewater.
Известен способ переработки цинковых концентратов [Рипан Р., Четяну И. Неорганическая химия. - М.: Мир, 1972, с.786 и 787] пирометаллургическим путем.A known method of processing zinc concentrates [Ripan R., Chetyanu I. Inorganic chemistry. - M .: Mir, 1972, p. 786 and 787] by the pyrometallurgical method.
Недостатом способа является многостадийность процесса, использование сложного оборудования и риск экологического загрязнения окружающей среды.The disadvantage of this method is the multi-stage process, the use of sophisticated equipment and the risk of environmental pollution.
Наиболее близким техническим решением является электроэкстракция ионов цинка [Рипан Р., Четяну И. Неорганическая химия. - М.: Мир, 1972, с.787 и 788].The closest technical solution is the electroextraction of zinc ions [Ripan R., Chetyanu I. Inorganic chemistry. - M .: Mir, 1972, p. 787 and 788].
Недостатком способа является большой расход электроэнергии и необходимость доизвлечения ионов цинка, например, сорбцией для извлечения ионов цинка из раствора после электроэкстракции до норм ПДК.The disadvantage of this method is the high energy consumption and the need for additional extraction of zinc ions, for example, sorption to extract zinc ions from solution after electroextraction to the MPC.
Задачей изобретения является использование экономичного и эффективного способа для извлечения ионов цинка из водных растворов.The objective of the invention is the use of an economical and efficient method for the extraction of zinc ions from aqueous solutions.
Технический результат, который может быть получен при использовании изобретения, заключается в экономичности и эффективности извлечения ионов цинка из водных растворов.The technical result that can be obtained using the invention is the cost-effectiveness and efficiency of the extraction of zinc ions from aqueous solutions.
Данный технический результат достигается тем, что в известном способе экстракции ионов цинка в качестве экстрагента применяют смесь олеиновой кислоты и триэтаноламина, а экстракцию осуществляют при рН 3-11.This technical result is achieved by the fact that in the known method for the extraction of zinc ions, a mixture of oleic acid and triethanolamine is used as the extractant, and the extraction is carried out at pH 3-11.
Сущность способа поясняется данными табл. 1-3, в которых указаны время контакта фаз при заданной величине рН, концентрация ионов металла и величина рН в осветленной водной фазе, коэффициент распределения D, рассчитываемый как отношение равновесных концентраций иона металла в органической и водной фазах.The essence of the method is illustrated by the data in table. 1-3, which indicate the contact time of the phases at a given pH value, the concentration of metal ions and the pH value in the clarified aqueous phase, distribution coefficient D, calculated as the ratio of the equilibrium concentrations of the metal ion in the organic and aqueous phases.
Экстрагент добавляли к исходному раствору сульфата цинка объемом 190 см3 в количестве 10 см3 (отношение органической и водной фаз О:В=1:19). Перемешивание и поддержание заданного значения рН осуществляли до тех пор, пока в дальнейшем кислотно-основные характеристики системы изменялись незначительно. Органическую фазу отделяли от водной, в последней определяли величину рН и остаточную концентрацию металла. Для поддержания заданного значения рН раствора в процессе извлечения металла в качестве нейтрализаторов применяли растворы щелочи NaOH и кислоты H2SО4.The extractant was added to the initial solution of zinc sulfate with a volume of 190 cm 3 in an amount of 10 cm 3 (the ratio of organic and aqueous phases O: B = 1: 19). Stirring and maintaining the desired pH value was carried out until, in the future, the acid-base characteristics of the system changed slightly. The organic phase was separated from the aqueous phase; in the latter, the pH and residual metal concentration were determined. To maintain the specified pH value of the solution during metal extraction, alkali solutions of NaOH and acid H 2 SO 4 were used as neutralizers.
Используя значения концентраций ионов цинка в водном растворе исходном и после экстракции, рассчитывали коэффициент распределения металла D между органической и водной фазами.Using the values of the concentrations of zinc ions in the initial aqueous solution and after extraction, the metal distribution coefficient D between the organic and aqueous phases was calculated.
Примеры практического применения.Examples of practical application.
В качестве экстрагента использовали смесь триэтаноламина, олеиновой кислоты и разбавителя, которые смешивали в объемном соотношении 6:12:82.As the extractant used a mixture of triethanolamine, oleic acid and diluent, which were mixed in a volume ratio of 6:12:82.
Объемы органической и водной фаз изменяются по сравнению с исходными незначительно: объем органической не изменяется, водной - в пределах 0,8-1,0.The volumes of the organic and aqueous phases change insignificantly in comparison with the initial ones: the volume of organic does not change, and that of water - in the range of 0.8-1.0.
Пример 1 (табл.1).Example 1 (table 1).
Разбавитель - керосин.The diluent is kerosene.
Экстракция цинка осуществляется при рН 4-10, лучшие результаты получены при рН 5-10: коэффициент распределения D=21-51 при времени экстракции 10-20 мин. При рН>10 в течение суток разделения на водную и органическую фазу не происходило.Zinc extraction is carried out at pH 4-10, the best results are obtained at pH 5-10: distribution coefficient D = 21-51 at an extraction time of 10-20 minutes. At pH> 10, no separation into the aqueous and organic phases occurred during the day.
Пример 2 (табл.2).Example 2 (table 2).
Разбавитель - бензин.The diluent is gasoline.
Экстракция цинка осуществляется при рН 3-11, лучшие результаты получены при рН 7-11: коэффициент распределения D=15-67 при времени экстракции 5-12 мин. При рН 12 выпадает осадок.Zinc extraction is carried out at pH 3-11, the best results were obtained at pH 7-11: distribution coefficient D = 15-67 at an extraction time of 5-12 minutes. At pH 12, a precipitate forms.
Пример 3 (табл.3).Example 3 (table 3).
Разбавитель - машинное масло.The diluent is engine oil.
Экстракция цинка осуществляется при рН 7-10, лучшие результаты получены при рН 9-10: коэффициент распределения D=12-27 при времени экстракции 150 мин. При рН>10 выпадает хлопьевидный осадок.Zinc extraction is carried out at pH 7-10, the best results were obtained at pH 9-10: distribution coefficient D = 12-27 at an extraction time of 150 minutes. At pH> 10, a flocculent precipitate forms.
Природа инертного разбавителя влияет на кинетику и коэффициенты распределения и разделения экстрагируемого иона.The nature of the inert diluent affects the kinetics and distribution and separation coefficients of the extracted ion.
Инертный разбавитель - машинное масло повышает температуру воспламенения экстрагента, делая последний пожаробезопасным, однако машинное масло, будучи более вязким по сравнению, например, с бензином и керосином, удлиняет процессы массообмена, разделения и отстоя фаз.Inert diluent - engine oil increases the ignition temperature of the extractant, making the latter fireproof, however, engine oil, being more viscous compared to, for example, gasoline and kerosene, lengthens the processes of mass transfer, separation and sedimentation of phases.
По сравнению с прототипом предлагаемый способ экономичен за счет использования недорогого и эффективного экстрагента.Compared with the prototype, the proposed method is economical by using an inexpensive and effective extractant.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2002111625/02A RU2229526C2 (en) | 2002-04-30 | 2002-04-30 | Method for extraction of zinc ions from aqueous solutions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2002111625/02A RU2229526C2 (en) | 2002-04-30 | 2002-04-30 | Method for extraction of zinc ions from aqueous solutions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2002111625A RU2002111625A (en) | 2003-11-20 |
| RU2229526C2 true RU2229526C2 (en) | 2004-05-27 |
Family
ID=32678493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2002111625/02A RU2229526C2 (en) | 2002-04-30 | 2002-04-30 | Method for extraction of zinc ions from aqueous solutions |
Country Status (1)
| Country | Link |
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| RU (1) | RU2229526C2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2499063C2 (en) * | 2012-01-23 | 2013-11-20 | Лидия Алексеевна Воропанова | Extraction of zinc ions from water solutions with vegetable oils |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4123260A (en) * | 1977-02-25 | 1978-10-31 | Sherritt Gordon Mines Limited | Selective recovery of nickel and cobalt or copper and zinc from solution |
| US4231888A (en) * | 1976-01-30 | 1980-11-04 | Imperial Chemical Industries Limited | Composition used for extracting copper from aqueous copper salts |
| GB2104516A (en) * | 1981-07-13 | 1983-03-09 | Univ Brunel | m-Alkyl phenol derivatives and their use in copper extraction |
| RU2013455C1 (en) * | 1991-04-18 | 1994-05-30 | Уральский научно-исследовательский и проектный институт медной промышленности "УНИПРОМЕДЬ" | Method of extraction purification of zinc-containing solutions from copper |
| RU2100465C1 (en) * | 1996-05-22 | 1997-12-27 | Воропанова Лидия Алексеевна | Method for extracting chromium (iii) from aqueous solutions |
-
2002
- 2002-04-30 RU RU2002111625/02A patent/RU2229526C2/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4231888A (en) * | 1976-01-30 | 1980-11-04 | Imperial Chemical Industries Limited | Composition used for extracting copper from aqueous copper salts |
| US4123260A (en) * | 1977-02-25 | 1978-10-31 | Sherritt Gordon Mines Limited | Selective recovery of nickel and cobalt or copper and zinc from solution |
| GB2104516A (en) * | 1981-07-13 | 1983-03-09 | Univ Brunel | m-Alkyl phenol derivatives and their use in copper extraction |
| RU2013455C1 (en) * | 1991-04-18 | 1994-05-30 | Уральский научно-исследовательский и проектный институт медной промышленности "УНИПРОМЕДЬ" | Method of extraction purification of zinc-containing solutions from copper |
| RU2100465C1 (en) * | 1996-05-22 | 1997-12-27 | Воропанова Лидия Алексеевна | Method for extracting chromium (iii) from aqueous solutions |
Non-Patent Citations (1)
| Title |
|---|
| РИПАН Р. и др. Неорганическая химия. - М.: Мир, 1972, с.787-788. * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2499063C2 (en) * | 2012-01-23 | 2013-11-20 | Лидия Алексеевна Воропанова | Extraction of zinc ions from water solutions with vegetable oils |
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