Method for catalytic preparation of resorcinol by using multi-component composite metal oxide catalyst

A composite metal and resorcinol technology, which is applied in metal/metal oxide/metal hydroxide catalyst, catalyst activation/preparation, peroxygen compound preparation, etc., can solve the problems of low yield and many by-products

Active Publication Date: 2017-09-22
TAISHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing methods have low yields and many by-products

Method used

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  • Method for catalytic preparation of resorcinol by using multi-component composite metal oxide catalyst
  • Method for catalytic preparation of resorcinol by using multi-component composite metal oxide catalyst
  • Method for catalytic preparation of resorcinol by using multi-component composite metal oxide catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Example 1 NiO-MgO-Pt three-way composite catalyst

[0050] Weigh 47.9340g Ni(NO 3 ) 2 ·6H 2 O and 3.4965g Mg(NO 3 ) 2 ·2H 2 O is dissolved in deionized water, and concentrated ammonia is added dropwise while stirring to adjust the pH to about 9.5. Filtration, drying at room temperature for 10 hours, and drying at 80°C for 12 hours; the obtained solid is heated to 600°C and calcined for 5 hours to obtain a binary composite oxide. Weigh 4.2870g of the above-mentioned NiO-MgO binary composite catalyst oxide, immerse it in an equal volume of chloroplatinic acid solution with a concentration of 0.01g / mL, dry, roast it in the air at 600℃ for 5h, and then add it to the nitrogen and hydrogen mixture. (The ratio of nitrogen to hydrogen is 1:1) NiO-MgO-Pt three-way composite catalyst was reduced at 180℃. The structure of the obtained NiO-MgO-Pt three-way composite catalyst is characterized as Figure 1~2 As shown, Figure 1~2 It can be seen that the particle size of platinum is 1...

Embodiment 2

[0060] Example 2 NiO-MgO-Pd three-way composite catalyst

[0061] This example is the same as Example 1, except that the NiO-MgO binary composite oxide is immersed in a palladium chloride solution with an equal volume concentration of 0.01 g / mL to obtain a NiO-MgO-Pd ternary composite catalyst.

[0062] The catalytic effect of the catalyst is as follows: the conversion rate of isophthalic acid is 93%, the selectivity of resorcinol is 31%, and the yield is 28.83%.

Embodiment 3

[0063] Example 3 NiO-Fe 2 O 3 -Pt three-way composite catalyst

[0064] Weigh 31.9560g Ni(NO 3 ) 2 ·6H 2 O and 10.1196g Fe(NO 3 ) 3 ·9H 2 O is dissolved in deionized water, and concentrated ammonia is added dropwise while stirring to adjust the pH to about 9.4. Filtration, drying at room temperature for 10 hours, and drying at 80°C for 12 hours; the obtained solid is heated to 600°C and calcined for 5 hours to obtain a binary composite oxide. Weigh 5.1038g of the above NiO-Fe 2 O 3 Binary composite oxide, immersed in an equal volume of 0.01g / mL chloroplatinic acid solution, dried, calcined in air at 600℃ for 5h, and then mixed with nitrogen and hydrogen (the ratio of nitrogen to hydrogen is 1:1) NiO-Fe reduced at 180℃ 2 O 3 -Pt three-way composite catalyst.

[0065] The application method of the catalyst in the catalytic oxidative decarboxylation reaction of isophthalic acid is the same as that of Example 1, except that the decomposition temperature is 190°C.

[0066] The catalytic...

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Abstract

The invention discloses a method for catalytic preparation of resorcinol by using a multi-component composite metal oxide catalyst, wherein the multi-component composite metal oxide is formed by compounding nickel oxide and other metal oxides, noble metal nanoparticles are adhered to the oxide, the mass fraction of other metal oxides in the multi-component composite metal oxide is 5-20%, the mass fraction of the noble metal in the multi-component composite metal oxide is 0.5-2.0%, and other metal oxides comprise ferric oxide, vanadium pentoxide, copper oxide, magnesium oxide, calcium oxide, potassium oxide, sodium oxide, zirconium oxide, tin oxide, zinc oxide, cobalt oxide, lead oxide, bismuth oxide, alumina, titanium oxide, manganese oxide, rubidium oxide, strontium oxide, palladium oxide, rhodium oxide, barium oxide, and silver oxide or platinum oxide, and the novel metals are gold, platinum, palladium, silver, ruthenium, osmium or iridium. The composite metal oxide of the present invention has catalytic performance in the liquid-phase synthesis of resorcinol from isophthalic acid, wherein the resorcinol yield can be up to 30.4%.

Description

Technical field [0001] The invention belongs to the field of solid phase catalysis, and relates to a method for preparing resorcinol by using a multi-element composite metal oxide catalyst for catalytic oxidative decarboxylation of isophthalic acid in liquid phase. Background technique [0002] Resorcinol is an important fine organic chemical raw material and organic intermediate. It is widely used in pharmaceutical chemicals, dyes, coatings, photosensitive materials, preservatives, adhesives, electronic chemicals, plastics, rubber, agriculture and other fields. Resorcinol-formaldehyde adhesives for synthesizing tire cord fabrics and high-performance adhesives for wood plywood. [0003] At present, the synthetic methods of resorcinol that have been industrialized are mainly: benzene sulfonation alkali fusion method, m-dicumyl oxidation method and m-phenylenediamine hydrolysis method. Among them, the benzene sulfonation alkali fusion method is the traditional method for producing r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/89B01J37/08B01J37/02B01J37/10C07C37/01C07C39/08C07C407/00C07C409/30
CPCB01J23/002B01J23/892B01J23/8926B01J23/894B01J23/8946B01J23/8953B01J23/8966B01J23/898B01J23/8986B01J37/0201B01J37/088B01J37/10C07C37/01C07C407/00C07C39/08C07C409/30
Inventor 张金军禚林海
Owner TAISHAN UNIV
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