RECYCLE PROCESS OF HIGH PURITY NICKEL FROM WASTE NICKEL SLUDGE USING ION EXCHANGE RESIN AND REDUCING AGENT
PURPOSE: A method for recovery nickel powder of high purity from nickel waste by using an ion exchange resin and a reducing agent is provided to obtain nickel powder of high purity with a simplified method without using an expensive electrolysis device or a heat treatment process. CONSTITUTION: A me...
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| creator | KIM, JIN HO SHIN, GI WUNG HONG, EUN MI |
| description | PURPOSE: A method for recovery nickel powder of high purity from nickel waste by using an ion exchange resin and a reducing agent is provided to obtain nickel powder of high purity with a simplified method without using an expensive electrolysis device or a heat treatment process. CONSTITUTION: A method for recovery nickel powder of high purity from nickel waste by using an ion exchange resin and a reducing agent includes the following steps of: removing primary impurities from nickel sulphate and waste nickel sulphate which are obtained from nickel sludge; removing secondary impurities by filtering the nickel sulphate with the ion exchange resin; forming a precursor by adding hydrazine as a reducing to the nickel sulphate; and increasing the pH of the precursor at a range of 10-12 and obtaining nickel powder by inducing a reduction reaction by separating liquid and solid from each other. [Reference numerals] (S01) Dissolve nickel sludge and prepare waste nickel sulphate; (S02) Remove impurities-control pH; (S03) Remove impurities-ion exchange resin; (S04) Add a reducing agent-generate a precursor; (S05) Reduction reaction-a pH control agent; (S06) Obtain nickel powder; (S07) Wash; (S08) Dry |
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CONSTITUTION: A method for recovery nickel powder of high purity from nickel waste by using an ion exchange resin and a reducing agent includes the following steps of: removing primary impurities from nickel sulphate and waste nickel sulphate which are obtained from nickel sludge; removing secondary impurities by filtering the nickel sulphate with the ion exchange resin; forming a precursor by adding hydrazine as a reducing to the nickel sulphate; and increasing the pH of the precursor at a range of 10-12 and obtaining nickel powder by inducing a reduction reaction by separating liquid and solid from each other. [Reference numerals] (S01) Dissolve nickel sludge and prepare waste nickel sulphate; (S02) Remove impurities-control pH; (S03) Remove impurities-ion exchange resin; (S04) Add a reducing agent-generate a precursor; (S05) Reduction reaction-a pH control agent; (S06) Obtain nickel powder; (S07) Wash; (S08) Dry</description><language>eng ; kor</language><subject>CASTING ; CHEMISTRY ; FERROUS OR NON-FERROUS ALLOYS ; MAKING METALLIC POWDER ; MANUFACTURE OF ARTICLES FROM METALLIC POWDER ; METALLURGY ; PERFORMING OPERATIONS ; POWDER METALLURGY ; PRETREATMENT OF RAW MATERIALS ; PRODUCTION AND REFINING OF METALS ; TRANSPORTING ; TREATMENT OF ALLOYS OR NON-FERROUS METALS ; WORKING METALLIC POWDER</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=20131010&DB=EPODOC&CC=KR&NR=101317297B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20131010&DB=EPODOC&CC=KR&NR=101317297B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KIM, JIN HO</creatorcontrib><creatorcontrib>SHIN, GI WUNG</creatorcontrib><creatorcontrib>HONG, EUN MI</creatorcontrib><title>RECYCLE PROCESS OF HIGH PURITY NICKEL FROM WASTE NICKEL SLUDGE USING ION EXCHANGE RESIN AND REDUCING AGENT</title><description>PURPOSE: A method for recovery nickel powder of high purity from nickel waste by using an ion exchange resin and a reducing agent is provided to obtain nickel powder of high purity with a simplified method without using an expensive electrolysis device or a heat treatment process. 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CONSTITUTION: A method for recovery nickel powder of high purity from nickel waste by using an ion exchange resin and a reducing agent includes the following steps of: removing primary impurities from nickel sulphate and waste nickel sulphate which are obtained from nickel sludge; removing secondary impurities by filtering the nickel sulphate with the ion exchange resin; forming a precursor by adding hydrazine as a reducing to the nickel sulphate; and increasing the pH of the precursor at a range of 10-12 and obtaining nickel powder by inducing a reduction reaction by separating liquid and solid from each other. [Reference numerals] (S01) Dissolve nickel sludge and prepare waste nickel sulphate; (S02) Remove impurities-control pH; (S03) Remove impurities-ion exchange resin; (S04) Add a reducing agent-generate a precursor; (S05) Reduction reaction-a pH control agent; (S06) Obtain nickel powder; (S07) Wash; (S08) Dry</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; kor |
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| subjects | CASTING CHEMISTRY FERROUS OR NON-FERROUS ALLOYS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY PERFORMING OPERATIONS POWDER METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WORKING METALLIC POWDER |
| title | RECYCLE PROCESS OF HIGH PURITY NICKEL FROM WASTE NICKEL SLUDGE USING ION EXCHANGE RESIN AND REDUCING AGENT |
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