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Hyper-crosslinked resin and its application in adsorption separation of 5-hydroxymethylfurfural

A technology of ultra-high cross-linked resin and resin, applied in the direction of selective adsorption, ion exchange, ion exchange regeneration, etc., to achieve the effect of high adsorption selectivity, fast and efficient adsorption and separation, and simple operation

Inactive Publication Date: 2019-09-20
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the preparation process of chloromethyl polystyrene resin, there are problems such as the use of strong carcinogen chloromethyl ether and side reactions such as multiple substitutions and secondary crosslinking. , low-cost, easy-to-regenerate adsorption media

Method used

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  • Hyper-crosslinked resin and its application in adsorption separation of 5-hydroxymethylfurfural
  • Hyper-crosslinked resin and its application in adsorption separation of 5-hydroxymethylfurfural
  • Hyper-crosslinked resin and its application in adsorption separation of 5-hydroxymethylfurfural

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A kind of preparation method of ultra-high cross-linked resin is as follows:

[0036] (1) Preparation of precursor resin: Add 240g of the water phase into a 500mL three-necked flask, add the oil phase into the water phase, blow in nitrogen for 5 minutes, adjust the speed to 135rpm, raise the temperature to 80°C, keep it for 5h, and use hot water to finish the reaction 1. Rinse the resin in sequence with industrial alcohol until the washing solution is clear, then Soxhlet extraction for 48 hours, and then vacuum-dry at 45°C to constant weight to obtain the precursor resin;

[0037] Wherein the water phase contains 0.5% polyvinyl alcohol and 1% methylene blue, and the oil phase consists of ethylene glycol dimethacrylate 8g, divinylbenzene 32g, porogen toluene 24g and n-heptane 16g, initiator benzyl peroxide Acyl 0.4g;

[0038] (2) Preparation of post-crosslinked resin: add 120mL 1,2-dichloroethane to 10g precursor resin in (1) and soak overnight, then add 0.3g FeCl 3Cat...

Embodiment 2

[0044] The preparation method of the ultra-high cross-linked adsorption resin provided in this embodiment is the same as in Example 1, except that the amount of the dispersant polyvinyl alcohol in the water phase in step (1) is 0.25%, and the amount of the monomer in the oil phase is 0.25%. The mass is 20g, and the mass of the crosslinking agent is 20g.

[0045] The procedure for adsorbing 5-hydroxymethylfurfural by the ultra-highly cross-linked adsorption resin provided in this example is the same as that in Example 1.

Embodiment 3

[0047] The preparation method of the ultra-high cross-linked adsorption resin provided in this example is the same as in Example 1, except that the ester monomer in step (1) is ethylene glycol diacrylate.

[0048] The procedure for adsorbing 5-hydroxymethylfurfural by the ultra-highly cross-linked adsorption resin provided in this example is the same as that in Example 1.

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Abstract

The invention provides a hyper-crosslinked resin and its application in adsorption separation of 5-hydroxymethylfurfural. A preparation method for the hyper-cross-linked resin comprises the following steps: S1, mixing an ester monomer, a cross-linking agent, an initiator and a pore forming agent, adding the formed mixture into an aqueous phase containing a dispersing agent, and performing suspension polymerization to obtain precursor resin; and S2, adding a swelling agent and a Lewis acid catalyst into the precursor resin, and performing a post-crosslinking reaction of a suspended double bond to obtain post-crosslinked resin, wherein the ester monomer is one or more selected from the group consisting of ethyl acrylate, butyl acrylate, triethylene glycol dimethacrylate, ethylene glycol dimethacrylate, ethylene glycol diacrylate, methyl methacrylate , glycidyl methacrylate and hydroxyethyl acrylate. The hyper-crosslinked resin provided by the invention has a BET specific surface area of 400 to 1200 m<2> / g, a pore volume of 0.1 to 2.5 cm<3> / g, and an average pore size of 1 to 20 nm.

Description

technical field [0001] The invention relates to the technical field of ultra-high cross-linked resins, more specifically, to an ultra-high cross-linked resin and its application in adsorption and separation of 5-hydroxymethylfurfural. Background technique [0002] With the depletion of fossil resources and the emission of greenhouse gas pollution, the development and utilization of renewable resources has attracted widespread attention worldwide. Biomass resource is currently the only renewable carbon resource, and it is an important way to convert biomass into platform compounds and bulk chemicals. [0003] 5-Hydroxymethylfurfural is considered to be one of the most important bio-based platform compounds, and is rated as TOP10 bio-based platform compounds by the US Department of Energy. The 5-hydroxyfurfural molecule contains a furan ring, an aldehyde group and a hydroxyl group, which can undergo different types of reactions, such as hydrogenation, oxidation, rearrangement...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F212/36C08F222/14C08J3/24C08F20/18C08F220/20C08J9/26B01D15/08C07D307/46
CPCC08F212/36C08F222/1006C08J3/24C08F20/18C08J9/26B01D15/08C07D307/46C08F222/102C08F220/20
Inventor 林晓清郑嘉怡何先达郑晓洁刘耀张可炫袁淑娴彭智童肖江雄陈哲潘宝盈
Owner GUANGDONG UNIV OF TECH
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