Abstract
The present invention concerns a process for oxidizing lignin at alkaline conditions. This oxidized lignin can be used as a dispersant in various end-products, for example as a renewable plasticizer in cement-containing products, such as concrete, where the ability of the oxidized lignin to endure alkaline conditions is an advantage. Further, the invention concerns a concrete mixture containing aggregate, cement, water and a plasticizer formed of oxidized lignin, and a process for producing such a concrete mixture. The oxidized lignin can be manufactured using a process, where the lignin starting material is reacted with an oxidizing agent in solution in alkaline conditions.
Patent family as of 12.11.2021
BR112016007318 A2 20170801 BR20161107318 20141002
CN105705475 A 20160622 CN201480054352 20141002
CN105705475 B 20181228 CN201480054352 20141002
EP3052451 A1 20160810 EP20140851342 20141002
EP3052451 A4 20170614 EP20140851342 20141002
FI126397 B 20161115 FI20130005986 20131002
FI20135986 A 20150403 FI20130005986 20131002
US2016244364 AA 20160825 US20140026618 20141002
US9676667 BB 20170613 US20140026618 20141002
WO15049424 A1 20150409 WO2014FI50754 20141002
Link to current patent family on right
| Original language | English |
|---|---|
| Patent number | US2016244364 |
| IPC | C04B 24/ 24 A I |
| Priority date | 2/10/14 |
| Publication status | Published - 25 Aug 2016 |
| MoE publication type | H1 Granted patent |