Methods for preparing diol
US10464870B2 · kind B2 · utility
7Cited by
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17Claims
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Key dates
| Filing date | Sep 23, 2015 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Sep 23, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/582
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Provided is a method for preparing a diol. In the method, a saccharide and hydrogen as raw materials are contacted with a catalyst in water to prepare the diol. The employed catalyst is a composite catalyst comprised of a main catalyst and a cocatalyst, wherein the main catalyst is a water-insoluble acid-resistant alloy; and the cocatalyst is a soluble tungstate and/or soluble tungsten compound. The method uses an acid-resistant, inexpensive and stable alloy needless of a support as a main catalyst, and can guarantee a high yield of the diol in the case where the production cost is relatively low.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.