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Catalysts for the mechanocatalytic oxidative depolymerization of polymer-containing materials and methods of making oxidized reaction products using same

A technology for oxidation catalysts and reaction products, applied in the preparation of organic compounds, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve inappropriate, uneconomical environment, high consumption of strong alkali And other issues

Inactive Publication Date: 2015-09-09
UNIV OF CENT FLORIDA RES FOUND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

A problem with this method is the high consumption of strong bases such as NaOH, which makes the method less economical and less environmentally appropriate.

Method used

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  • Catalysts for the mechanocatalytic oxidative depolymerization of polymer-containing materials and methods of making oxidized reaction products using same
  • Catalysts for the mechanocatalytic oxidative depolymerization of polymer-containing materials and methods of making oxidized reaction products using same
  • Catalysts for the mechanocatalytic oxidative depolymerization of polymer-containing materials and methods of making oxidized reaction products using same

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[0058]As shown in Table 1 below, oxidation catalysis of lignin-containing materials with different oxidation catalysts was performed on SPEX 8000M (single) and SPEX 8000D (dual) mixing mills in Mitacheng, NJ (SPEX CertiPrep, Metuchen, NJ ) and agitation is provided by the mixer mill. Weigh enough oxidation catalyst and lignin-containing material (ie, Douglas fir chips) to produce a total mass of 1 gram. These ratios were varied to meet the ratios specified in Table 1. If no ratio is specified, the ratio is 1:1. The oxidation catalyst / lignin-containing material was placed in a flat bottomed SPEX mill vial with a volume of approximately 65 ml. Use three 1 / 2-inch steel ball bearings as the grinding media. Again, milling was performed in 8000M (single) and 8000D (dual) mixer / mills. Grinding vials, caps, and steel ball bearings are constructed from 440C stainless steel. All samples were milled for two hours.

[0059] A small amount of these oxidized reaction products (along w...

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Abstract

The presently disclosed and / or claimed inventive concept(s) relates generally to oxidative oxidized reaction products made from the mechanocatalytic oxidative depolymerization of lignin. More particularly, but without limitation, the mechanocatalytic oxidative depolymerization of lignin is performed in a non-aqueous / non-solvent based and solvent-free process, i.e., via a solid-solid mechanocatalytic oxidative reaction methodology. In one particular embodiment, the process of making such oxidative oxidized reaction products includes, without limitation, the step of mechanocatalytically reacting an oxidation catalyst with lignin or a lignin-containing material. The oxidative reaction products obtained from the process include, for example, at least one of vanillin, and syringealdehyde, vanillic acid, and syringic acid.

Description

technical field [0001] One or more inventive concepts disclosed and / or claimed herein relate generally to oxidized reaction products prepared from the mechanocatalytic oxidative depolymerization of lignin. More specifically, but not limited thereto, the mechanocatalytic oxidation depolymerization of lignin is carried out in a non-aqueous and solvent-free process, i.e., by a solid-solid mechanocatalytic oxidation reaction method . In a specific embodiment, the method of preparing such an oxidized reaction product includes, but is not limited to, the step of mechanocatalytically reacting an oxidation catalyst with lignin or a lignin-containing material. The oxidized reaction product obtained from the method comprises, for example, at least one of vanillin, syringaldehyde, vanillic acid, and syringic acid. Background technique [0002] The conversion of lignocellulosic biomass represents a potentially rich source of aromatic compounds, and complete depolymerization of lignin ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C45/27C07C47/58C07C47/56B01J27/24B01J23/34C07B33/00
CPCB01J23/83B01J23/8926B01J23/8892C07C45/27B01J23/002B01J27/24C07C47/56C07C47/58C07C45/32B01J23/10B01J23/34B01J2523/00C07C45/61C07C51/347C07C65/21
Inventor 乔治·布莱尔·理查德
Owner UNIV OF CENT FLORIDA RES FOUND INC
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