Methods of producing para-xylene and terephthalic acid

A technology of p-xylene and sulfonic acid, which is applied in chemical instruments and methods, preparation of carboxylate, preparation of organic compounds, etc., can solve the problem of reduced selectivity of xylene
CN104918901AInactive Publication Date: 2015-09-16MICROMIDAS INC
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
MICROMIDAS INC
Publication Date
2015-09-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present disclosure provides methods to produce para-xylene, toluene, and other compounds from renewable sources (e.g., cellulose, hemicellulose, starch, sugar) and ethylene in the presence of a catalyst. For example, cellulose and / or hemicellulose may be converted into 2,5-dimethylfuran (DMF), which may be converted into para-xylene by cycloaddition of ethylene to DMF. Para-xylene can then be oxidized to form terephthalic acid.
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Description

[0001] Cross References to Related Applications

[0002] This application claims priority to U.S. Provisional Patent Application No. 61 / 701,276, filed September 14, 2012, and U.S. Patent Application No. 13 / 838,761, filed March 15, 2013, which are hereby incorporated by reference in their entirety . technical field

[0003] This disclosure relates generally to the manufacture of paraxylene and terephthalic acid, and more specifically, to the manufacture of paraxylene and paraxylene from renewable biomass resources (e.g., cellulose, hemicellulose, starch, sugars) and ethylene. Phthalic acid. Background technique

[0004] There is a high demand for the production of paraxylene and terephthalic acid from renewable biomass resources for the manufacture of clothing and plastics. Terephthalic acid is a precursor to polyethylene terephthalate (PET) that can be used to make polyester fabrics. Terephthalic acid can be produced by oxidation of p-xylene.

[0005] Paraxylene is an 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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