Novel montmorillonite nanometer complex and preparation method thereof

A nanocomposite and montmorillonite technology, applied in chemical instruments and methods, silicon compounds, inorganic chemistry, etc., to achieve mild conditions, large specific surface area, and good thermal stability

Active Publication Date: 2012-08-08
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, regarding polyether ammonium cations, Ti 4+ or / and Sb 3+ The modified montmorillonite prepared by co-intercalation of montmorillonite will have both polyether ammonium modified montmorillonite and Ti 4+ ion or / and Sb 3+ The performance of ion-modified montmorillonite, research and related patents in this area have not been reported at home and abroad

Method used

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  • Novel montmorillonite nanometer complex and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Dissolve 5.6g of titanium tetrachloride in 100ml of dilute hydrochloric acid with a concentration of 1mol / L to prepare a titanium intercalation solution. 15g of sodium-based montmorillonite was dispersed in 750ml of deionized water to prepare a montmorillonite suspension. Under the conditions of room temperature and magnetic stirring, the titanium intercalation solution was slowly dropped into the montmorillonite suspension. After the dropwise addition, the reaction system was heated to 80°C and refluxed for 0.5 hours under magnetic stirring to obtain a titanium intercalation montmorillonite mixture. liquid. The reaction mixture was centrifuged to obtain titanium-montmorillonite.

[0019] Dissolve 1.7g of polyetheramine D400 in 36ml of acetone, mix 1.5g of hydrochloric acid solution (37wt%) with 12ml of deionized water, add hydrochloric acid solution dropwise to D400 acetone solution under magnetic stirring, and continue magnetic stirring for 3h after the addition is c...

Embodiment 2

[0021] Dissolve 2.8g of titanium tetrachloride in 100ml of dilute hydrochloric acid with a concentration of 1mol / L to prepare a titanium intercalation solution. 15g of sodium-based montmorillonite was dispersed in 100ml of absolute ethanol to prepare a montmorillonite suspension. Under the conditions of room temperature and magnetic stirring, the titanium intercalation solution was slowly dropped into the montmorillonite suspension. After the dropwise addition, the reaction system was heated to 60°C and refluxed for 8 hours under magnetic stirring to obtain a titanium intercalation montmorillonite mixture. liquid. The reaction mixture was centrifuged to separate the titanium-intercalated montmorillonite.

[0022] 25g of polyetheramine D2000, 2.6g of hydrochloric acid solution (37wt%) and 20mL of deionized water were uniformly mixed, and then magnetically stirred for 3 hours to obtain D2000 polyether ammonium salt. Disperse the titanium intercalated montmorillonite in a mixed...

Embodiment 3

[0024] Dissolve 25g of polyetheramine T5000 in 48ml of acetone, add 1.5g of hydrochloric acid solution (37wt%) and 20mL of deionized water mixture under magnetic stirring at room temperature, and continue magnetic stirring for 3 hours to obtain T5000 polyether ammonium salt intercalation solution. Disperse 15g of sodium-based montmorillonite in 1000ml of acetone to prepare a montmorillonite suspension. Under the conditions of room temperature and magnetic stirring, the T5000 polyether ammonium salt intercalation solution was slowly dropped into the montmorillonite suspension. After the dropwise addition, the reaction system was heated to 70°C and refluxed for 4 hours under magnetic stirring to obtain T5000 Polyether ammonium salt intercalation montmorillonite mixture. The reaction mixture was centrifuged to separate the T5000 polyether ammonium salt intercalated montmorillonite.

[0025] Dissolve 0.07g of titanium tetrachloride in 100ml of dilute hydrochloric acid with a conc...

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Abstract

The invention relates to a novel montmorillonite nanometer complex, in particular to the montmorillonite nanometer complex consisting of a polyether ammonium cation, Ti4<+> or/and Sb3<+> ions and montmorillonite as well as a preparation method of the montmorillonite nanometer complex. According to the montmorillonite nanometer complex, the polyether ammonium cation accounts for 5-80 percent by weight of the total amount of the polyether ammonium cation, and the Ti4<+> ion or the Sb3<+> ion or the Ti4<+> and the Sb3<+> ions account for 0.00001-2 percent by weight of the total amount of the montmorillonite nanometer complex. Under the conditions of normal pressure and room temperature of 100DEG C, polyether ammonium salt, titanium tetrachloride or/and antimony trichloride ion are intercalated into the montmorillonite to obtain the montmorillonite nanometer complex. The montmorillonite nanometer complex is simple in preparation process, is mild in conditions and easy in industrial production.

Description

technical field [0001] The invention relates to a novel modified montmorillonite, in particular to a polyether ammonium cation, Ti 4+ or / and Sb 3+ A modified montmorillonite complex composed of ions and montmorillonite and a preparation method thereof. Background technique [0002] Inorganic pillared clays have large specific surface area and high thermal stability, and are a new class of porous functional materials that have received extensive attention and developed rapidly in recent decades. Compared with natural clay, they have larger specific surface area and unique pore structure, so they show broad application potential as selective adsorbents, catalysts and catalyst supports in the fields of petrochemical and environmental protection. In the 1980s, aluminum-based intercalated montmorillonite was first prepared, but its specific surface area was not ideal. Later, it was found that titanium pillared montmorillonite has larger pores, higher thermal or hydrothermal st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/44
Inventor 王小群杜善义陈贵勇
Owner BEIHANG UNIV
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