Method and apparatus for producing halohydantoin compound, recycling method, and halohydantoin compound
US9855514B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Nov 15, 2013 |
| Grant date | Jan 2, 2018 |
| Priority date | — |
| Expiry date | Nov 15, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D233/82
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of the present invention for producing a halohydantoin compound by refining, in a dryer (1), a composition containing at least one of water and elemental halogen, an organic solvent, and the halohydantoin compound, the method includes the steps of: (i) removing the organic solvent from the composition; and (ii) removing the at least one of the water and the elemental halogen from the composition refined in the step (i).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.