Abstract: The present discloses relates to a method for continuously synthesizing 5-hydroxymethylfurfural by using a micro-channel reactor, which belongs to the technical field of micro-chemical engineering. The method includes: separately conveying an aqueous glucose solution, which contains FeCl3 and HCl, and methyl butyl ketone to a T-shaped micro-mixer, the T-shaped micro-mixer being in communication with a capillary tube; then enabling an aqueous glucose solution phase and a methyl butyl ketone phase to flow in the capillary tube in a segmented flow manner while performing an HMF synthesis reaction; and collecting a reaction product flowing out of the capillary tube, wherein HMF generated by the reaction is present in an organic phase of the reaction product. The method is easy to operate, has a controllable process, high product yield, a low by-product amount and a short synthesis period, and is a green method for efficient and continuous synthesis of HMF.

Abstract: An epoxidized vegetable oil is subjected to a first ring-opening reaction with an acidic catalyst and a ?-mercaptoalcohol compound to obtain a first reaction solution, and then the first reaction solution is subjected to a second ring-opening reaction with a cyclohydrocarbyl methanol compound to obtain the vegetable oil polyol, which adopts novel ring-opening reagents to introduce an antioxidant sulfur-containing fragment into the molecular structure of the vegetable oil polyol in a covalent manner, while also introducing a cyclohydrocarbyl group and retaining a small portion of epoxy groups, thereby ensuring that a polyurethane product has a certain degree of toughness, in addition to relatively good corrosion resistance and oxidation resistance, while guaranteeing the mechanical properties of the polyurethane material.

Abstract: The present discloses relates to a method for continuously synthesizing 5-hydroxymethylfurfural by using a micro-channel reactor, which belongs to the technical field of micro-chemical engineering. The method includes: separately conveying an aqueous glucose solution, which contains FeCl3 and HCl, and methyl butyl ketone to a T-shaped micro-mixer, the T-shaped micro-mixer being in communication with a capillary tube; then enabling an aqueous glucose solution phase and a methyl butyl ketone phase to flow in the capillary tube in a segmented flow manner while performing an HMF synthesis reaction; and collecting a reaction product flowing out of the capillary tube, wherein HMF generated by the reaction is present in an organic phase of the reaction product. The method is easy to operate, has a controllable process, high product yield, a low by-product amount and a short synthesis period, and is a green method for efficient and continuous synthesis of HMF.