| PATENT ASSIGNEE'S COUNTRY | Korea |
| UPDATE | 02.00 |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS |
Mfg process wherein PET waste is hydrolyzed & crystallized - PET scrap is hydrolyzed with alkali wt.-redn. waste water & wetting agent to prepare disodium terephthalate - Aq soln of disodium terephthalate dissolved in water is se parated as solids & liquids; solids are fed back to first step while liquids are transferred to next adsorption process - Aq soln of disodium terephthalate is adsorbed & neutrali zed with acid to give terephthalic acid - Crystallization process to enlarge terephthalic acid parti cles - Cooled under reduced pressure, filtered & dried |
| PATENT PHOTOCOPY | Available on request |
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