Method for preparing levoglucosenone

A technology of L-glucosone and co-pyrolysis, applied in the field of comprehensive utilization of solid waste, can solve the problems of shedding of functional groups of skeleton, difficult to reuse, and the reuse of functional groups has not been obviously reported, and achieves the promotion of selectivity. The effect of transformation, simple method
CN112645962AInactive Publication Date: 2021-04-13GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI +1
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
Publication Date
2021-04-13
Estimated Expiration
Not applicable ยท inactive patent
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Abstract

The invention discloses a method for preparing levoglucosenone. The method comprises the following steps: grinding and mixing waste strongly acidic macroporous resin Amberlyst-15 and cellulose powder according to a mass ratio of (0.1-1): 1, and carrying out co-pyrolysis in an oxygen-free environment at 250-450 DEG C to prepare the levoglucosenone. According to the method, the waste strongly acidic macroporous resin Amberlyst-15 and the cellulose are subjected to co-pyrolysis treatment, so that the selective conversion of the cellulose to levoglucosenone can be promoted, and the green resource utilization and treatment of the waste resin high polymer can be realized. The method is simple and easy to implement, and can be further popularized and applied to pyrolysis conversion of other wood fiber biomass resources and green resource reutilization and co-treatment of waste resin.
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Description

technical field

[0001] The invention belongs to the field of comprehensive utilization of solid waste, and in particular relates to a method for preparing levoglucosone. Background technique

[0002] Strongly acidic macroporous resin is a kind of functional macromolecular organic polymer, which has been widely used in wastewater treatment, pharmaceutical industry, chemical industry, analytical chemistry and other fields. Generally speaking, after repeated regeneration and use of resinous organic polymers, the skeleton collapses, and some functional groups in the skeleton fall off, resulting in a significant decline in adsorption, separation or catalytic performance, making it difficult to reuse. At present, the disposal methods of waste macroporous resins in industrial production are mainly direct incineration and landfill, but there is no obvious report on the reuse of residual functional groups in its structure. On the other hand, my country produces billions of tons of a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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