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Composite catalyst for improving lactose isomerization yield, preparation method and application

A composite catalyst and isomerization technology, applied in physical/chemical process catalysts, preparation of sugar derivatives, chemical instruments and methods, etc., can solve the problem of low catalytic efficiency of boric acid

Active Publication Date: 2022-06-21
SYNGARS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, boric acid is used as a catalyst to prepare lactulose by chemical isomerization, but boric acid has the problem of low catalytic efficiency, and the catalytic performance of boric acid needs to be further improved

Method used

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  • Composite catalyst for improving lactose isomerization yield, preparation method and application
  • Composite catalyst for improving lactose isomerization yield, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Table 3 Embodiment 1 to 3 and the decolorization performance test of corresponding catalyst of comparative example

[0033] In conjunction with Table 1 to Table 3, it can be seen that the product X1 of the embodiment has the highest catalytic rate, and its specific appearance is as follows figure 1 shown. figure 1 The middle layer structure is graphene, and the atomic spectrophotometer test is carried out in the area in the dotted box, and the result is figure 2 shown. figure 2 Among them, the luminescent part is B atom; figure 1 and figure 2 It can be seen that the lactose isomerization of the boric acid-graphene composite obtained in the present invention not only has a catalytic effect, but also has a decolorization effect, and its catalytic efficiency is obviously better than that of boric acid alone, and the yield has also been improved.

Embodiment 2

Embodiment 3

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Abstract

The invention discloses a preparation method of a composite catalyst for improving the lactose isomerization yield. The preparation method comprises the following steps: step 1, uniformly mixing graphene and boric acid crystals; 2, performing high-temperature quenching on the mixture of the graphene and the boric acid crystal to a molten state, and along with heat preservation, diffusing B atoms and connecting the B atoms to the graphene to form a sheet structure; annealing and cooling; the B2O3 <-> graphene is obtained; step 3, adding water into the B2O3-graphene, and obtaining water molecules from B2O3 in the B2O3-graphene to form B (OH) 3-graphene; and 4, cooling the water in the step 3, and separating out the B (OH) 3-graphene from the water to obtain a target product. The obtained composite catalyst is applied to lactose isomerization, the catalytic efficiency is high, and meanwhile the decolorization performance is considered.

Description

technical field [0001] The invention relates to the technical field of lactose isomerization catalysts, in particular to a composite catalyst for improving the yield of lactose isomerization, a preparation method and an application. Background technique [0002] The production of lactulose by chemical isomerization of lactose is currently the only form of commercial lactulose production. The isomerization of lactose to lactulose is a specific type of aldose-ketose isomerization reaction. In the lactulose isomerization system of lactose, boric acid can form a complex with lactulose under a specific pH value environment, thereby promoting the production of lactulose. [0003] In the prior art, boric acid is used as a catalyst to prepare lactulose by chemical isomerization, but boric acid has the problem of low catalytic efficiency, and the catalytic performance of boric acid needs to be further improved. Contents of the invention [0004] The first object of the present in...

Claims

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Application Information

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IPC IPC(8): B01J21/18C07H1/00C07H1/06C07H3/04
CPCB01J21/18C07H1/00C07H1/06C07H3/04Y02P20/584
Inventor 郑炜方金法黄强
Owner SYNGARS TECH CO LTD
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