Lignin extraction with LignoBoost®

Wood is a composite of cellulose fibers embedded in lignin, a natural glue that keeps the fibers together. LignoBoost®, Valmet’s lignin extraction technology, makes it possible to extract lignin from pulp mill black liquor. Lignin is quickly becoming a valuable and renewable raw material in a wide range of industries.

Lignin can replace many fossil-based materials.

Lignin can create additional value for pulp makers.

Valmet can help you grow your lignin business.

LignoBoost plants

Valmet has built four LignoBoost plants, two bigger ones for commercial production and recently two small plants that support building business around lignin.

LignoBoost is a proven and reliable technology that has been developed with several industrial partners. The world’s first LignoBoost plant was built by RISE (then Innventia). This plant is still in operation and can be used for development work.



Mercer, Germany
1 t/day
Startup 2023


Klabin, Brazil
1 t/day
Startup 2019


Stora Enso, Finland
50,000 t/year
Startup 2015


Domtar, USA
25,000 t/year
Startup 2013


Tailoring the lignin

LignoBoost extracts a pure lignin in a form that allows tailoring into a wide range of qualities. Lignin tailoring processes can be supplied with new LignoBoost plants or installed as upgrades to existing ones.


Contact us

Contact us

The goal of Valmet is to bring our customers’ performance forward, and LignoBoost can help pulp makers create new profitable and renewable products. To learn more, or to get help in developing your lignin business, get in touch with us through the “contact us” pages or your local Valmet office.

Contact us