Preparation method of complex modified montmorillonite
The invention discloses a preparation method of complex modified montmorillonite. The method adopting sodium montmorillonite as a raw material and a chelating agent diethylenetriamine as a modifier comprises the following steps: adding a diethylenetriamine solution into a sodium montmorillonite susp...
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| creator | WANG ALONG WANG FENGYUN XU YING XIA MINGZHU YANG LEI LEI WU CHU YUTING |
| description | The invention discloses a preparation method of complex modified montmorillonite. The method adopting sodium montmorillonite as a raw material and a chelating agent diethylenetriamine as a modifier comprises the following steps: adding a diethylenetriamine solution into a sodium montmorillonite suspension, stirring and reacting the diethylenetriamine solution and the sodium montmorillonite suspension under a 20-80 DEG C water bath condition for 2-24 h, carrying out suction filtration, and washing and drying the obtained reaction product to obtain the modified montmorillonite, wherein the moleof the diethylenetriamine is 80-120% of the cation exchange capacity of the sodium montmorillonite. The modified montmorillonite obtained through the method can effectively adsorb Pb (II), Cd (II) andother toxic heavy metal ions in an aqueous solution as an adsorbent, and has a high adsorption efficiency, the adsorption rate can reach 98.4% or more when the initial concentration of Pb ions is less than 100 mg/L, the modif |
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The method adopting sodium montmorillonite as a raw material and a chelating agent diethylenetriamine as a modifier comprises the following steps: adding a diethylenetriamine solution into a sodium montmorillonite suspension, stirring and reacting the diethylenetriamine solution and the sodium montmorillonite suspension under a 20-80 DEG C water bath condition for 2-24 h, carrying out suction filtration, and washing and drying the obtained reaction product to obtain the modified montmorillonite, wherein the moleof the diethylenetriamine is 80-120% of the cation exchange capacity of the sodium montmorillonite. The modified montmorillonite obtained through the method can effectively adsorb Pb (II), Cd (II) andother toxic heavy metal ions in an aqueous solution as an adsorbent, and has a high adsorption efficiency, the adsorption rate can reach 98.4% or more when the initial concentration of Pb ions is less than 100 mg/L, the modif</description><language>chi ; eng</language><subject>CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY ; CHEMISTRY ; METALLURGY ; PERFORMING OPERATIONS ; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ; THEIR RELEVANT APPARATUS ; TRANSPORTING ; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE</subject><creationdate>2018</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=20181023&DB=EPODOC&CC=CN&NR=108686717A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76418</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20181023&DB=EPODOC&CC=CN&NR=108686717A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>WANG ALONG</creatorcontrib><creatorcontrib>WANG FENGYUN</creatorcontrib><creatorcontrib>XU YING</creatorcontrib><creatorcontrib>XIA MINGZHU</creatorcontrib><creatorcontrib>YANG LEI</creatorcontrib><creatorcontrib>LEI WU</creatorcontrib><creatorcontrib>CHU YUTING</creatorcontrib><title>Preparation method of complex modified montmorillonite</title><description>The invention discloses a preparation method of complex modified montmorillonite. 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The method adopting sodium montmorillonite as a raw material and a chelating agent diethylenetriamine as a modifier comprises the following steps: adding a diethylenetriamine solution into a sodium montmorillonite suspension, stirring and reacting the diethylenetriamine solution and the sodium montmorillonite suspension under a 20-80 DEG C water bath condition for 2-24 h, carrying out suction filtration, and washing and drying the obtained reaction product to obtain the modified montmorillonite, wherein the moleof the diethylenetriamine is 80-120% of the cation exchange capacity of the sodium montmorillonite. The modified montmorillonite obtained through the method can effectively adsorb Pb (II), Cd (II) andother toxic heavy metal ions in an aqueous solution as an adsorbent, and has a high adsorption efficiency, the adsorption rate can reach 98.4% or more when the initial concentration of Pb ions is less than 100 mg/L, the modif</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE |
| title | Preparation method of complex modified montmorillonite |
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