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Catalyst used in furfural gaseous phase hydrogenation to prepare furyl alcohol and its preparation method

A technology for preparing furfuryl alcohol and catalysts, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve the problems of high price and dependence on imports of catalysts, and achieve the preparation method Simple, easy to industrialized production, good stability effect

Inactive Publication Date: 2003-04-16
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, although the production of furfuryl alcohol in my country has introduced a gas-phase hydrogenation unit, the catalyst still relies on imports.
The imported Cu-Cr catalyst used in industry is expensive and contains chromium, a substance harmful to human body, so it is of great significance to research and develop new catalysts with high efficiency and environmental friendliness

Method used

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  • Catalyst used in furfural gaseous phase hydrogenation to prepare furyl alcohol and its preparation method
  • Catalyst used in furfural gaseous phase hydrogenation to prepare furyl alcohol and its preparation method
  • Catalyst used in furfural gaseous phase hydrogenation to prepare furyl alcohol and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] After the commercially available heavy conventional MgO is subjected to mechanical pulverization and ultrafine treatment by jet mill, its relatively regular grain shape becomes irregular, and various defects appear on the crystal surface, and this surface lattice defect will make the carrier The nature has changed greatly. The conventional MgO carrier (with an average particle diameter of 200nm) is mechanically pulverized to obtain an ultrafine MgO carrier with a particle diameter in the range of 40-100nm. In addition, it can be seen that the crystallinity of MgO becomes lower from the weakening of the peak intensity of the XRD spectrum and the broadening of the diffraction peak (see the accompanying drawing).

[0021] The ultrafine MgO support was calcined at 400°C for 4h.

[0022] Mix 67.5ml, 0.5M copper nitrate solution and 10.4ml, 0.5M cobalt nitrate solution evenly. Weigh 5g of ultrafine MgO carrier and slowly add it into the above mixed solution under stirring. ...

Embodiment 2

[0025] The 67.5ml, 0.5M copper nitrate solution in Example 1 was replaced with 67.5ml, 0.75M copper nitrate solution, Cu content (wt%): 39.82%, Co content (wt%): 3.05%. Other conditions are with embodiment 1.

Embodiment 3

[0027] The 67.5ml, 0.75M copper nitrate solution in Example 2 was replaced with 67.5ml, 1.0M copper nitrate solution, Cu content (wt%): 42.02%, Co content (wt%): 2.63%. Other conditions are with embodiment 2.

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Abstract

A catalyst for preparing furfuryl alcohol by gas-phase hydrogenation of furaldehyde is prepared from MgO articles (less than 100 nm) as carrier, Cu (27-46 wt.%) and Co (2-6 wt.%). Its advantages are high activity, selectivity (100%) and stability, high conversion rate (above 99% after reaction for 10 hr), and simple preparing process.

Description

Technical field [0001] The invention relates to a hydrogenation catalyst, in particular to a catalyst for furfural gas-phase hydrogenation to furfuryl alcohol and a preparation method thereof. The invention is a novel catalyst made of metal Cu and Co and ultrafine MgO carrier and its application technology in furfural vapor phase hydrogenation to furfuryl alcohol reaction. Background technique [0002] Furfuryl alcohol is an important raw material for chemical industry and light industry, widely used in synthetic fiber, rubber, pesticide and other industries. Furfuryl alcohol can be used as a raw material to produce cold-resistant plasticizers, and its most promising application field is the production of furfuryl alcohol resins that are acid-resistant, alkali-resistant, anti-corrosion materials and chemically resistant. Furfuryl alcohol is also a good solvent for varnishes, pigments, etc. At the same time, it can also be used as rocket fuel. [0003] There are two main me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/75C07D307/44
Inventor 张明慧李伟张丽荣陶克毅
Owner NANKAI UNIV
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