METHOD OF EXTRACTING SCANDIUM
FIELD: chemistry.SUBSTANCE: invention relates to hydrometallurgical processing of mineral material, particularly scandium-containing "tailings" obtained during beneficiation of titanium-magnetite ore by wet magnetic separation. The method of extracting scandium is three-step sulphuric acid...
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| creator | KRYLOVA OL'GA KONSTANTINOVNA FEDOROV EVGENIJ DMITRIEVICH SMIRNOV KONSTANTIN MIKHAJLOVICH RADUSHINSKIJ STANISLAV MICHESLAVOVICH |
| description | FIELD: chemistry.SUBSTANCE: invention relates to hydrometallurgical processing of mineral material, particularly scandium-containing "tailings" obtained during beneficiation of titanium-magnetite ore by wet magnetic separation. The method of extracting scandium is three-step sulphuric acid leaching of scandium, wherein at the first step, leaching is carried out with recycled solution after extraction of scandium at temperature of 30-50°C and solid to liquid ratio of 1:6-7 for 3-4 hours; the pulp is then divided into a solid phase and a liquid phase; at the second step, a portion of the solution obtained from the first step is returned to the solid phase and sulphuric acid is added to concentration of 340-360 g/l and sodium fluoride is added in amount of 20-25 kg fluorine/t solid; leaching is carried out at temperature of 95-98°C and solid to liquid ratio of 1:2.5-3 for 3-4 hours; further, at the third step, the pulp is diluted in solid to liquid ratio of 1:6.5-7.5; treatment is carried out at temperature of 95-98°C for 3-4 hours.EFFECT: invention increases extraction of scandium, cuts the overall duration of the leaching process and consumption of sulphuric acid and sodium fluoride.3 ex, 1 tbl
Изобретение относится к гидрометаллургической переработке минерального сырья, в частности к скандийсодержащим «хвостам», полученным при обогащении титаномагнетитовых руд методом мокрой магнитной сепарации. Способ извлечения скандия представляет собой трехстадийное сернокислотное выщелачивание скандия, причем на первой стадии выщелачивание ведут оборотным раствором после экстракции скандия при температуре 30-50°С и соотношении Т:Ж=1:6-7 в течение 3-4 ч, затем пульпу разделяют на твердую и жидкую фазы, на второй стадии в твердую фазу возвращают часть полученного раствора от первой стадии и добавляют серную кислоту до концентрации 340-360 г/л и фторид натрия 20-25 кг фтора/т твердого, выщелачивание ведут при температуре 95-98°С и соотношении Т:Ж=1:2,5-3 в течение 3-4 ч, далее на третьей стадии пульпу разбавляют в соотношении Т:Ж=1:6,5-7,5, обработку ведут при температуре 95-98°С в течение 3-4 ч. Изобретение обеспечивает повышение извлечения скандия, сокращение суммарного времени процесса выщелачивания и расхода серной кислоты и фторида натрия. 3 пр., 1 табл. |
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| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_RU2485049C1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>RU2485049C1</sourcerecordid><originalsourceid>FETCH-epo_espacenet_RU2485049C13</originalsourceid><addsrcrecordid>eNrjZJD1dQ3x8HdR8HdTcI0ICXJ0DvH0c1cIdnb0c_EM9eVhYE1LzClO5YXS3AwKbq4hzh66qQX58anFBYnJqXmpJfFBoUYmFqYGJpbOhsZEKAEAVOgg1w</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>METHOD OF EXTRACTING SCANDIUM</title><source>esp@cenet</source><creator>KRYLOVA OL'GA KONSTANTINOVNA ; FEDOROV EVGENIJ DMITRIEVICH ; SMIRNOV KONSTANTIN MIKHAJLOVICH ; RADUSHINSKIJ STANISLAV MICHESLAVOVICH</creator><creatorcontrib>KRYLOVA OL'GA KONSTANTINOVNA ; FEDOROV EVGENIJ DMITRIEVICH ; SMIRNOV KONSTANTIN MIKHAJLOVICH ; RADUSHINSKIJ STANISLAV MICHESLAVOVICH</creatorcontrib><description>FIELD: chemistry.SUBSTANCE: invention relates to hydrometallurgical processing of mineral material, particularly scandium-containing "tailings" obtained during beneficiation of titanium-magnetite ore by wet magnetic separation. The method of extracting scandium is three-step sulphuric acid leaching of scandium, wherein at the first step, leaching is carried out with recycled solution after extraction of scandium at temperature of 30-50°C and solid to liquid ratio of 1:6-7 for 3-4 hours; the pulp is then divided into a solid phase and a liquid phase; at the second step, a portion of the solution obtained from the first step is returned to the solid phase and sulphuric acid is added to concentration of 340-360 g/l and sodium fluoride is added in amount of 20-25 kg fluorine/t solid; leaching is carried out at temperature of 95-98°C and solid to liquid ratio of 1:2.5-3 for 3-4 hours; further, at the third step, the pulp is diluted in solid to liquid ratio of 1:6.5-7.5; treatment is carried out at temperature of 95-98°C for 3-4 hours.EFFECT: invention increases extraction of scandium, cuts the overall duration of the leaching process and consumption of sulphuric acid and sodium fluoride.3 ex, 1 tbl
Изобретение относится к гидрометаллургической переработке минерального сырья, в частности к скандийсодержащим «хвостам», полученным при обогащении титаномагнетитовых руд методом мокрой магнитной сепарации. Способ извлечения скандия представляет собой трехстадийное сернокислотное выщелачивание скандия, причем на первой стадии выщелачивание ведут оборотным раствором после экстракции скандия при температуре 30-50°С и соотношении Т:Ж=1:6-7 в течение 3-4 ч, затем пульпу разделяют на твердую и жидкую фазы, на второй стадии в твердую фазу возвращают часть полученного раствора от первой стадии и добавляют серную кислоту до концентрации 340-360 г/л и фторид натрия 20-25 кг фтора/т твердого, выщелачивание ведут при температуре 95-98°С и соотношении Т:Ж=1:2,5-3 в течение 3-4 ч, далее на третьей стадии пульпу разбавляют в соотношении Т:Ж=1:6,5-7,5, обработку ведут при температуре 95-98°С в течение 3-4 ч. Изобретение обеспечивает повышение извлечения скандия, сокращение суммарного времени процесса выщелачивания и расхода серной кислоты и фторида натрия. 3 пр., 1 табл.</description><language>eng ; rus</language><subject>CHEMISTRY ; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS ; COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS ; FERROUS OR NON-FERROUS ALLOYS ; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC ; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS ; INORGANIC CHEMISTRY ; METALLURGY ; PRETREATMENT OF RAW MATERIALS ; PRODUCTION AND REFINING OF METALS ; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>2013</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20130620&DB=EPODOC&CC=RU&NR=2485049C1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20130620&DB=EPODOC&CC=RU&NR=2485049C1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KRYLOVA OL'GA KONSTANTINOVNA</creatorcontrib><creatorcontrib>FEDOROV EVGENIJ DMITRIEVICH</creatorcontrib><creatorcontrib>SMIRNOV KONSTANTIN MIKHAJLOVICH</creatorcontrib><creatorcontrib>RADUSHINSKIJ STANISLAV MICHESLAVOVICH</creatorcontrib><title>METHOD OF EXTRACTING SCANDIUM</title><description>FIELD: chemistry.SUBSTANCE: invention relates to hydrometallurgical processing of mineral material, particularly scandium-containing "tailings" obtained during beneficiation of titanium-magnetite ore by wet magnetic separation. The method of extracting scandium is three-step sulphuric acid leaching of scandium, wherein at the first step, leaching is carried out with recycled solution after extraction of scandium at temperature of 30-50°C and solid to liquid ratio of 1:6-7 for 3-4 hours; the pulp is then divided into a solid phase and a liquid phase; at the second step, a portion of the solution obtained from the first step is returned to the solid phase and sulphuric acid is added to concentration of 340-360 g/l and sodium fluoride is added in amount of 20-25 kg fluorine/t solid; leaching is carried out at temperature of 95-98°C and solid to liquid ratio of 1:2.5-3 for 3-4 hours; further, at the third step, the pulp is diluted in solid to liquid ratio of 1:6.5-7.5; treatment is carried out at temperature of 95-98°C for 3-4 hours.EFFECT: invention increases extraction of scandium, cuts the overall duration of the leaching process and consumption of sulphuric acid and sodium fluoride.3 ex, 1 tbl
Изобретение относится к гидрометаллургической переработке минерального сырья, в частности к скандийсодержащим «хвостам», полученным при обогащении титаномагнетитовых руд методом мокрой магнитной сепарации. Способ извлечения скандия представляет собой трехстадийное сернокислотное выщелачивание скандия, причем на первой стадии выщелачивание ведут оборотным раствором после экстракции скандия при температуре 30-50°С и соотношении Т:Ж=1:6-7 в течение 3-4 ч, затем пульпу разделяют на твердую и жидкую фазы, на второй стадии в твердую фазу возвращают часть полученного раствора от первой стадии и добавляют серную кислоту до концентрации 340-360 г/л и фторид натрия 20-25 кг фтора/т твердого, выщелачивание ведут при температуре 95-98°С и соотношении Т:Ж=1:2,5-3 в течение 3-4 ч, далее на третьей стадии пульпу разбавляют в соотношении Т:Ж=1:6,5-7,5, обработку ведут при температуре 95-98°С в течение 3-4 ч. Изобретение обеспечивает повышение извлечения скандия, сокращение суммарного времени процесса выщелачивания и расхода серной кислоты и фторида натрия. 3 пр., 1 табл.</description><subject>CHEMISTRY</subject><subject>CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS</subject><subject>COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC</subject><subject>GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS</subject><subject>INORGANIC CHEMISTRY</subject><subject>METALLURGY</subject><subject>PRETREATMENT OF RAW MATERIALS</subject><subject>PRODUCTION AND REFINING OF METALS</subject><subject>TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS</subject><subject>TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2013</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJD1dQ3x8HdR8HdTcI0ICXJ0DvH0c1cIdnb0c_EM9eVhYE1LzClO5YXS3AwKbq4hzh66qQX58anFBYnJqXmpJfFBoUYmFqYGJpbOhsZEKAEAVOgg1w</recordid><startdate>20130620</startdate><enddate>20130620</enddate><creator>KRYLOVA OL'GA KONSTANTINOVNA</creator><creator>FEDOROV EVGENIJ DMITRIEVICH</creator><creator>SMIRNOV KONSTANTIN MIKHAJLOVICH</creator><creator>RADUSHINSKIJ STANISLAV MICHESLAVOVICH</creator><scope>EVB</scope></search><sort><creationdate>20130620</creationdate><title>METHOD OF EXTRACTING SCANDIUM</title><author>KRYLOVA OL'GA KONSTANTINOVNA ; FEDOROV EVGENIJ DMITRIEVICH ; SMIRNOV KONSTANTIN MIKHAJLOVICH ; RADUSHINSKIJ STANISLAV MICHESLAVOVICH</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_RU2485049C13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; rus</language><creationdate>2013</creationdate><topic>CHEMISTRY</topic><topic>CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS</topic><topic>COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC</topic><topic>GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS</topic><topic>INORGANIC CHEMISTRY</topic><topic>METALLURGY</topic><topic>PRETREATMENT OF RAW MATERIALS</topic><topic>PRODUCTION AND REFINING OF METALS</topic><topic>TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS</topic><topic>TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><toplevel>online_resources</toplevel><creatorcontrib>KRYLOVA OL'GA KONSTANTINOVNA</creatorcontrib><creatorcontrib>FEDOROV EVGENIJ DMITRIEVICH</creatorcontrib><creatorcontrib>SMIRNOV KONSTANTIN MIKHAJLOVICH</creatorcontrib><creatorcontrib>RADUSHINSKIJ STANISLAV MICHESLAVOVICH</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KRYLOVA OL'GA KONSTANTINOVNA</au><au>FEDOROV EVGENIJ DMITRIEVICH</au><au>SMIRNOV KONSTANTIN MIKHAJLOVICH</au><au>RADUSHINSKIJ STANISLAV MICHESLAVOVICH</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD OF EXTRACTING SCANDIUM</title><date>2013-06-20</date><risdate>2013</risdate><abstract>FIELD: chemistry.SUBSTANCE: invention relates to hydrometallurgical processing of mineral material, particularly scandium-containing "tailings" obtained during beneficiation of titanium-magnetite ore by wet magnetic separation. The method of extracting scandium is three-step sulphuric acid leaching of scandium, wherein at the first step, leaching is carried out with recycled solution after extraction of scandium at temperature of 30-50°C and solid to liquid ratio of 1:6-7 for 3-4 hours; the pulp is then divided into a solid phase and a liquid phase; at the second step, a portion of the solution obtained from the first step is returned to the solid phase and sulphuric acid is added to concentration of 340-360 g/l and sodium fluoride is added in amount of 20-25 kg fluorine/t solid; leaching is carried out at temperature of 95-98°C and solid to liquid ratio of 1:2.5-3 for 3-4 hours; further, at the third step, the pulp is diluted in solid to liquid ratio of 1:6.5-7.5; treatment is carried out at temperature of 95-98°C for 3-4 hours.EFFECT: invention increases extraction of scandium, cuts the overall duration of the leaching process and consumption of sulphuric acid and sodium fluoride.3 ex, 1 tbl
Изобретение относится к гидрометаллургической переработке минерального сырья, в частности к скандийсодержащим «хвостам», полученным при обогащении титаномагнетитовых руд методом мокрой магнитной сепарации. Способ извлечения скандия представляет собой трехстадийное сернокислотное выщелачивание скандия, причем на первой стадии выщелачивание ведут оборотным раствором после экстракции скандия при температуре 30-50°С и соотношении Т:Ж=1:6-7 в течение 3-4 ч, затем пульпу разделяют на твердую и жидкую фазы, на второй стадии в твердую фазу возвращают часть полученного раствора от первой стадии и добавляют серную кислоту до концентрации 340-360 г/л и фторид натрия 20-25 кг фтора/т твердого, выщелачивание ведут при температуре 95-98°С и соотношении Т:Ж=1:2,5-3 в течение 3-4 ч, далее на третьей стадии пульпу разбавляют в соотношении Т:Ж=1:6,5-7,5, обработку ведут при температуре 95-98°С в течение 3-4 ч. Изобретение обеспечивает повышение извлечения скандия, сокращение суммарного времени процесса выщелачивания и расхода серной кислоты и фторида натрия. 3 пр., 1 табл.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS FERROUS OR NON-FERROUS ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INORGANIC CHEMISTRY METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | METHOD OF EXTRACTING SCANDIUM |
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