During the LigniOx project, the techno-economic viability of alkali-O2 oxidation technology (LigniOx) for the conversion of variable lignin-rich side-streams into versatile dispersants, especially high-performance concrete and mortar plasticizers, will be demonstrated. 


The LigniOx project  has following specific targets:

  • Demonstrate both the oxidation technology and the end-product performance at operational conditions.
  • Develop industrial lignin conversion process that can be integrated into the lignocellulosic biorefineries or operated as stand-alone units by chemical industry.
  • Enable market entry of novel lignin based concrete and mortar plasticizers to replace the current synthetic superplasticizers and lignosulphonate products.
  • Create new business opportunities for the lignocellulosic biorefineries, technology providers and chemical industry.

Main Activities:

  • The most prevalent techno-economic concepts for industrial process installations will be defined. Oxidation conditions will be optimised for variable lignin raw materials, and post-treatment protocols based on membrane technologies will be developed, to meet the requirements of target end-product.


  • A mobile pilot unit will be constructed for scale-up and process demonstrations at biorefineries. It will be used for process optimisation, and mill demonstrations also after the project.


  • The viability of the process concepts will be demonstrated in operation conditions at kraft pulp mill and other biorefineries, using the mobile pilot unit together with the process modelling.


  • Conceptual design will be performed to ensure the integration of industrial LigniOx processes at the biorefineries or operation in stand-alone units. More detailed process planning for the mills involved in the demonstration.


  • The performance of LigniOx concrete plasticizers will be demonstrated at industrially relevant conditions by field tests, and industrial product prototypes will be produced to ensure commercialisation of the end-products after the project. Potential other application possibilities will be evaluated also.


  • Techno-economic evaluation as well as environmental and socio-economic impacts will be assessed for the studied value chains in comparison with current processes and products.


  • Regulatory issues will be considered to ensure that the safety, quality, and purity of the new products are in line with EU legislation and proven to meet the end-market requirements.


  • Market up-take will be evaluated, and business models will be aligned with the target market.