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a catalyst 6 p 2 w 15 mo 3 o 62 /tio 2 and the preparation method of n-pentyl acetate

A technology of h6p2w15mo3o62 and n-amyl acetate, which is applied in the field of catalyst preparation methods, can solve the problems of loss of unreacted raw materials of products, difficulty in catalyst recovery, complicated treatment processes, etc., and achieves good reuse performance, good application prospects, and high product yield. Effect

Inactive Publication Date: 2017-10-17
HUBEI NORMAL UNIV
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Problems solved by technology

However, the above methods also have difficulties in catalyst recovery, complex post-reaction treatment process, and loss of products and unreacted raw materials, so it is difficult to obtain further development and application.

Method used

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  • a catalyst <sub>6</sub> p <sub>2</sub> w <sub>15</sub> mo <sub>3</sub> o <sub>62</sub> /tio <sub>2</sub> and the preparation method of n-pentyl acetate
  • a catalyst <sub>6</sub> p <sub>2</sub> w <sub>15</sub> mo <sub>3</sub> o <sub>62</sub> /tio <sub>2</sub> and the preparation method of n-pentyl acetate
  • a catalyst <sub>6</sub> p <sub>2</sub> w <sub>15</sub> mo <sub>3</sub> o <sub>62</sub> /tio <sub>2</sub> and the preparation method of n-pentyl acetate

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with accompanying drawing:

[0024] The present invention includes reagents: sodium tungstate [Na 2 WO 4 2H 2 O], sodium molybdate [Na 2 MoO 4 ·H 2 O], disodium hydrogen phosphate [Na 2 HPO 4 2H 2O], n-butyl titanate, concentrated sulfuric acid, anhydrous ether, glacial acetic acid, n-pentanol, cyclohexane, saturated saline, anhydrous calcium chloride; instruments: standard grinding mouth organic preparation apparatus, electric stirrer , PKW-Ⅲ electronic energy-saving temperature controller, Abbe refractometer, electronic balance, Nicolet5700 infrared Raman spectrometer, D8ADVANCE X-ray diffractometer for powder diffraction analysis;

[0025] The catalyst H 6 P 2 W 15 Mo 3 o 62 / TiO 2 The preparation method:

[0026] Preparation of Dawson phosphotungstomolybdic acid H by hydrothermal method 6 P 2 W 15 Mo 3 o 62

[0027] A: Weigh 7.3g of Na 2 MoO 4 ·H 2 O and 51.1 g Na 2 WO 4 2...

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Abstract

The invention discloses a preparation method of catalyst H6P2W15Mo3O62 / TiO2 and n-pentyl acetate. Dawson H6P2W15Mo3O62 is prepared with a hydrothermal method, then TiO2 loaded Dawson type P-W-Mo-heteropolyacid catalyst H6P2W15Mo3O62 / TiO2 is prepared with an impregnation method, the structure of the TiO2 loaded Dawson type P-W-Mo-heteropolyacid catalyst H6P2W15Mo3O62 / TiO2 is characterized with FT-IR and XRD methods, and the catalytic activity of catalytic activity on esterification reaction is studied. The optimized conditions for preparing the catalyst are that the activation temperature is 150 DEG C, the calcination time is 4.5 h, and the load of the H6P2W15Mo3O62 / TiO2 is 40%. The n-pentyl acetate synthesized by the catalyst of the H6P2W15Mo3O62 / TiO2 has the advantages of excellent catalytic activity, mild reaction condition, high product yield, no environmental pollution and better recycling performance. Therefore, the H6P2W15Mo3O62 / TiO2 is an excellent catalyst for synthesizing the n-pentyl acetate and has an excellent application prospect.

Description

technical field [0001] The present invention relates to a kind of catalyst preparation method, relate in particular to a kind of catalyst H 6 P 2 W 15 Mo 3 o 62 / TiO 2 And the preparation method of n-pentyl acetate. Background technique [0002] N-pentyl acetate is a colorless, transparent liquid with banana and pear aromas, and is an important synthetic fragrance and organic solvent. Slightly soluble in water, miscible with alcohol ether. It is mainly used as a solvent in chemical production, used in the manufacture of paint in the wood industry, used in the manufacture of artificial leather in the leather industry, used in the manufacture of film in the photosensitive industry, used in the manufacture of gunpowder in the national defense industry, used in the manufacture of cosmetics in the daily chemical industry, and used in the manufacture of penicillin in the pharmaceutical industry. Extractant, used as a chemical reagent in analytical chemistry. In addition, i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/38C07C67/08C07C69/14
CPCY02P20/10
Inventor 吕宝兰陈都龚文朋何云鹏杨水金
Owner HUBEI NORMAL UNIV
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