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A Simple Synthesis of High-Carbon Aldehyde Catalyst

A carbon aldehyde catalyst and catalyst technology, applied in the direction of physical/chemical process catalyst, carbon monoxide reaction preparation, organic chemistry, etc., can solve the problems of not getting rid of preconditions, etc., to reduce the yield of by-product internal ene, reduce the yield, Prepare simple effects

Active Publication Date: 2022-08-09
NINGXIA UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The researchers used relatively expensive carbon nanotube materials, which improved the conversion rate to a certain extent, but still did not get rid of the precondition of reduction before catalysis

Method used

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  • A Simple Synthesis of High-Carbon Aldehyde Catalyst

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Weigh 2.3793 g CoCl 2 ·6H 2 O, dissolved in 20 mL of deionized water; weigh 2.3769 g NiCl 2 ·6H 2 O, dissolved in 20 mL of deionized water; the two solutions were mixed well, and the solution containing 3.5192 g of NaH was added. 2 PO 2 40 mL of the solution, stirred for 0.5 h; under stirring, added with 4 The solution was 40 mL, and the reaction was continued for another 1 h; the obtained suspension was centrifuged, the filter cake was washed to neutrality, washed three times with absolute ethanol, and vacuum dried at 50ºC to prepare the catalyst. The mass content of Co is 18%, the mass content of Ni is 18%, the mass content of P is 38%, and the mass content of B is 26%.

[0024] Evaluation of catalytic activity for the synthesis of 1-nonanal: the composition of the reaction gas is CO50% and H 2 50%, the reaction temperature was 130 ºC, the reaction pressure was 5 MPa, the stirring speed was 1200 r.p.m, and the reaction time was 4 h. The results are shown in Tabl...

Embodiment 2

[0026] Weigh 2.3793 g CoCl 2 ·6H 2 O, dissolved in 20 mL of deionized water; weigh 1.1885 g NiCl 2 ·6H 2 O, dissolved in 10 mL of deionized water; mix the two solutions well, add 2.6394 g NaH 2 PO 2 30 mL of the solution was stirred for 0.5 h; under stirring, 2.2698 g of NaBH 4 The solution was 30 mL, and the reaction was continued for another 1 h; the obtained suspension was centrifuged, the filter cake was washed to neutrality, washed three times with absolute ethanol, and dried in vacuum at 50ºC to prepare the catalyst. The mass content of Co is 24%, the mass content of Ni is 12%, the mass content of P is 38%, and the mass content of B is 26%. The activity evaluation is the same as that in Example 1, and the results are shown in Table 1.

Embodiment 3

[0028] Weigh 2.3793 g CoCl 2 ·6H 2O, dissolved in 20 mL of deionized water; weigh 3.56535 g NiCl 2 ·6H 2 O, dissolved in 30 mL of deionized water; the two solutions were mixed well, and 4.399 g of NaH was added. 2 PO 2 50 mL of the solution was stirred for 0.5 h; 3.783 g NaBH was added under stirring 4 The solution was 50 mL, and the reaction was continued for another 1 h; the obtained suspension was centrifuged, the filter cake was washed to neutrality, washed three times with absolute ethanol, and vacuum dried at 50ºC to prepare the catalyst. The mass content of Co is 14%, the mass content of Ni is 22%, the mass content of P is 38%, and the mass content of B is 26%. The activity evaluation is the same as that in Example 1, and the results are shown in Table 1.

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Abstract

The invention relates to high-carbon aldehyde synthesis, and provides a high-activity high-carbon aldehyde synthesis catalyst, which realizes the conversion of high-carbon α-olefin into high-carbon aldehyde, the conversion rate of α-olefin is close to 100%, and the yield of product aldehyde is 96%. The catalyst of the invention comprises metallic cobalt Co and nickel Ni, non-metallic phosphorus P and boron B to form a Ni-Co-P-B amorphous alloy. Compared with traditional metal catalysts, this catalyst belongs to non-equilibrium metastable state in thermodynamics, and has unique coordination unsaturation, electronic interaction, and adjustable composition, showing superior catalytic performance. The catalyst according to the invention has the advantages of simple preparation process, low cost, high activity and adjustable product ratio.

Description

technical field [0001] The invention belongs to the field of industrial catalysis, and relates to a high-carbon aldehyde synthesis catalyst. Background technique [0002] High carbon aldehyde, C 9 -C 13 Aldehyde, as a fine organic synthetic raw material, can be used to synthesize lubricating oil, plasticizer, surfactant, fragrance and detergent, etc., and has a good market value. However, the synthesis of high carbon aldehydes is still limited by the quality of catalysts. At present, industrial high-carbon aldehydes are produced from high-carbon α-olefins by hydroformylation. Due to excessive consideration of the high boiling point properties of high-carbon aldehydes, the rhodium catalyst components are lost and decomposed in the subsequent distillation and separation process. Although the use of homogeneous cobalt hydrogen carbonyl and tertiary phosphine modified cobalt carbonyl catalysts (Petrochemical 2011, 40(12): 1370-1374) can control the loss of catalyst components...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/185C07C45/50C07C47/02
CPCB01J27/1853C07C45/505C07C47/02Y02P20/584
Inventor 赵天生郭靖范素兵高新华张建利马清祥
Owner NINGXIA UNIVERSITY
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