Method for producing reactive lignin

Hanne Wikberg; Taina Ohra-Aho; Juha Leppävuori; Tiina Liitiä; Heimo Kanerva

Method for producing reactive lignin

Hanne Wikberg (Inventor), Taina Ohra-Aho (Inventor), Juha Leppävuori (Inventor), Tiina Liitiä (Inventor), Heimo Kanerva (Inventor)

Research output: Patent › Patent

Abstract

According to an aspect of the present invention, there is provided a method of producing reactive lignin from an alkaline lignin containing stream, such as black liquor, e.g. kraft lignin, by using thermal treatment with temperatures between 200 and 250 °C, and a retention time of 1h or less, for activation and precipitation of the lignin.

Patent family as of 20.12.2021
BR112019012493 A2 20200414 BR20191112493 20171221
CA3046288 AA 20190606 CA20173046288 20171221
EP3559014 A1 20191030 EP20170883518 20171221
EP3559014 A4 20200715 EP20170883518 20171221
FI128836 B 20210115 FI20160006008 20161221
FI20166008 L 20180622 FI20160006008 20161221
US2020011012 AA 20200109 US20170470260 20171221
WO18115592 A1 20180628 WO2017FI50927 20171221

Link to currentpatent family on right

Original language	English
Patent number	FI128836B
IPC	D21C 11/ 00 A I
Priority date	21/12/16
Publication status	Published - 15 Jan 2021
MoE publication type	H1 Granted patent

Cite this

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title = "Method for producing reactive lignin",

abstract = "According to an aspect of the present invention, there is provided a method of producing reactive lignin from an alkaline lignin containing stream, such as black liquor, e.g. kraft lignin, by using thermal treatment with temperatures between 200 and 250 °C, and a retention time of 1h or less, for activation and precipitation of the lignin.Patent family as of 20.12.2021BR112019012493 A2 20200414 BR20191112493 20171221 CA3046288 AA 20190606 CA20173046288 20171221 EP3559014 A1 20191030 EP20170883518 20171221 EP3559014 A4 20200715 EP20170883518 20171221 FI128836 B 20210115 FI20160006008 20161221 FI20166008 L 20180622 FI20160006008 20161221 US2020011012 AA 20200109 US20170470260 20171221 WO18115592 A1 20180628 WO2017FI50927 20171221Link to currentpatent family on right ",

author = "Hanne Wikberg and Taina Ohra-Aho and Juha Lepp{\"a}vuori and Tiina Liiti{\"a} and Heimo Kanerva",

year = "2021",

month = jan,

day = "15",

language = "English",

type = "Patent",

note = "FI128836B; D21C 11/ 00 A I",

}

TY - PAT

T1 - Method for producing reactive lignin

AU - Wikberg, Hanne

AU - Ohra-Aho, Taina

AU - Leppävuori, Juha

AU - Liitiä, Tiina

AU - Kanerva, Heimo

PY - 2021/1/15

Y1 - 2021/1/15

N2 - According to an aspect of the present invention, there is provided a method of producing reactive lignin from an alkaline lignin containing stream, such as black liquor, e.g. kraft lignin, by using thermal treatment with temperatures between 200 and 250 °C, and a retention time of 1h or less, for activation and precipitation of the lignin.Patent family as of 20.12.2021BR112019012493 A2 20200414 BR20191112493 20171221 CA3046288 AA 20190606 CA20173046288 20171221 EP3559014 A1 20191030 EP20170883518 20171221 EP3559014 A4 20200715 EP20170883518 20171221 FI128836 B 20210115 FI20160006008 20161221 FI20166008 L 20180622 FI20160006008 20161221 US2020011012 AA 20200109 US20170470260 20171221 WO18115592 A1 20180628 WO2017FI50927 20171221Link to currentpatent family on right

AB - According to an aspect of the present invention, there is provided a method of producing reactive lignin from an alkaline lignin containing stream, such as black liquor, e.g. kraft lignin, by using thermal treatment with temperatures between 200 and 250 °C, and a retention time of 1h or less, for activation and precipitation of the lignin.Patent family as of 20.12.2021BR112019012493 A2 20200414 BR20191112493 20171221 CA3046288 AA 20190606 CA20173046288 20171221 EP3559014 A1 20191030 EP20170883518 20171221 EP3559014 A4 20200715 EP20170883518 20171221 FI128836 B 20210115 FI20160006008 20161221 FI20166008 L 20180622 FI20160006008 20161221 US2020011012 AA 20200109 US20170470260 20171221 WO18115592 A1 20180628 WO2017FI50927 20171221Link to currentpatent family on right

UR - https://worldwide.espacenet.com/patent/search/family/062816102/publication/FI128836B?q=FI128836

M3 - Patent

M1 - FI128836B

ER -

Method for producing reactive lignin

Abstract

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