Sec-butyl acetate hydrogenation catalyst and preparation method and application thereof

A technology of sec-butyl acetate and hydrogenation catalyst, which is applied in the direction of catalyst activation/preparation, chemical instruments and methods, preparation of hydroxyl compounds, etc. It can solve the problems that no relevant reports have been seen in the hydrogenation process, and achieve good low-temperature reaction activity and high product quality. The effect of high selectivity and high activity

Active Publication Date: 2015-01-14
HUNAN CHANGLING PETROCHEM SCI & TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no relevant report on the catalyst and hydrogenation process specially used for the catalytic hydrogenation of sec-butyl acetate to prepare sec-butanol and ethanol

Method used

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  • Sec-butyl acetate hydrogenation catalyst and preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Preparation of catalyst:

[0028] 189.0 g of Zn(NO 3 ) 2 , 20.8 g ZrCl 4 and 50.1 g Mg(NO 3 ) 2 Mix metal solution 1 with deionized water, mix (NH 4 ) 2 CO 3 The aqueous solution and the metal mixed solution 1 were co-precipitated in a water bath at 80°C under constant stirring conditions, and the pH value at the end point was controlled to be 7-8, and the metal ions were co-precipitated into solid 1; 119.3 grams of Cu(NO 3 ) 2 With 4.4 g Pd(NO 3 ) 2 Mix metal solution 2 with deionized water, mix (NH 4 ) 2 CO 3 The aqueous solution and the metal mixed solution 2 are co-precipitated under the conditions of 80°C water bath, constant stirring and the presence of the solid 1, and the pH value of the end point is controlled to be 7-8, and finally all the metal ions are co-precipitated into the solid 2; finally the solid 2 Dry at 120°C for 10 hours and then bake at 450°C for 5 hours to obtain catalyst A. See Table 1 for the catalyst and its composition.

[0029]...

Embodiment 2

[0034] Preparation of catalyst:

[0035] 80.5 g ZnSO 4 , 40.4 g Zr(NO 3 ) 4 and 30.1 g CaCl 2 Make metal mixed solution 1 with deionized water, carry out co-precipitation with NaOH aqueous solution and metal mixed solution 1 in a 60°C water bath with constant stirring, control the end point pH value to 7-8, and metal ions are co-precipitated into solids 1 ; 68.0 g of CuSO 4 with 1.4 g PdCl2 Use deionized water to make metal mixed solution 2, carry out co-precipitation with NaOH aqueous solution and metal mixed solution 2 in a 60°C water bath, constant stirring and the presence of solid matter 1, control the end point pH value to 7-8, and finally all the metal Ions were co-precipitated into solid 2; finally, solid 2 was dried at 100°C for 15 hours and then calcined at 480°C for 6 hours to obtain catalyst B. The catalyst and its composition are shown in Table 1.

[0036] Catalyst reduction and hydrogenation of sec-butyl acetate:

[0037] Get 10.0 grams of catalyst B and pa...

Embodiment 3

[0041] Preparation of catalyst:

[0042] 136.0 g ZnCl 2 , 64.3 grams of Zr(SO 4 ) 2 and 5.3 g SrCl 2 Make metal mixed solution 1 with deionized water, carry out co-precipitation with KOH aqueous solution and metal mixed solution 1 in a 40°C water bath with constant stirring, control the end point pH value to 7-8, and metal ions are co-precipitated into solid matter 1 ; 62.3 grams of CuCl 2 with 4.9 g PdCl 2 Use deionized water to make metal mixed solution 2, and carry out co-precipitation with KOH aqueous solution and metal mixed solution 2 in a 60°C water bath, constant stirring and the presence of solid matter 1, and control the end point pH value to 7-8, and finally all the metal Ions were co-precipitated into solid 2; finally, solid 2 was dried at 80°C for 20 hours and then calcined at 550°C for 4 hours to obtain catalyst C. The catalyst and its composition are shown in Table 1.

[0043] Catalyst reduction and hydrogenation of sec-butyl acetate:

[0044] Get 10.0 gr...

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Abstract

The invention provides a sec-butyl acetate hydrogenation catalyst and a preparation method and application thereof. The catalyst contains active component elements of copper and palladium and assistant component elements of zinc and zirconium used for sec-butyl acetate hydrogenation,, wherein the catalyst also contains an alkaline earth element. Application of the sec-butyl acetate hydrogenation catalyst is also provided by the invention. The catalyst disclosed by the invention has the advantages of good low-temperature reaction activity, high product selectivity and the like when applied to the sec-butyl acetate hydrogenation reaction process.

Description

technical field [0001] The invention relates to the technical field of catalysts containing metals or oxides, in particular to a catalyst for the hydrogenation of sec-butyl acetate and its preparation method and application. Background technique [0002] With the promotion and application of sec-butyl acetate in the market and the continuous expansion of production scale, sec-butyl acetate has gradually become a bulk chemical product, and its market price is relatively cheap. The development of its downstream products has attracted widespread attention. [0003] As one of the downstream products of sec-butyl acetate, sec-butanol is widely used. Second-butanol is the raw material for the synthesis of methyl ethyl ketone. Due to the huge market consumption of methyl ethyl ketone, the market demand for its raw material sec-butanol is also very large. In addition, sec-butanol can also be used as an anti-emulsifier, dye dispersant, dehydrating agent, paint remover, industrial de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/89B01J37/03C07C29/149C07C31/08C07C31/12
Inventor 佘喜春向明林李庆华
Owner HUNAN CHANGLING PETROCHEM SCI & TECH DEV CO LTD
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