Skip to Content

4 Results Found

  • Article
  • Open Access
6 Citations
2,833 Views
20 Pages

An Efficient Method of Birch Ethanol Lignin Sulfation with a Sulfaic Acid-Urea Mixture

  • Alexander V. Levdansky,
  • Natalya Yu. Vasilyeva,
  • Yuriy N. Malyar,
  • Alexander A. Kondrasenko,
  • Olga Yu. Fetisova,
  • Aleksandr S. Kazachenko,
  • Vladimir A. Levdansky and
  • Boris N. Kuznetsov

26 September 2022

For the first time, the process of birch ethanol lignin sulfation with a sulfamic acid-urea mixture in a 1,4-dioxane medium was optimized experimentally and numerically. The high yield of the sulfated ethanol lignin (more than 96%) and containing 7.1...

(This article belongs to the Special Issue Natural Polymers and Biopolymers III)
  • Article
  • Open Access
94 Citations
7,644 Views
12 Pages

Formation of Lignin Nanoparticles by Combining Organosolv Pretreatment of Birch Biomass and Homogenization Processes

  • Leonidas Matsakas,
  • Anthi Karnaouri,
  • Andrzej Cwirzen,
  • Ulrika Rova and
  • Paul Christakopoulos

Valorization of lignocellulosic biomass into a biorefinery scheme requires the use of all biomass components; in this, the lignin fraction is often underutilized. Conversion of lignin to nanoparticles is an attractive solution. Here, we investigated...

(This article belongs to the Special Issue Lignin for Energy, Chemicals and Materials)
  • Article
  • Open Access
1 Citations
1,582 Views
19 Pages

Effect of Birch Sawdust Hydrolysis on Chemical Characteristics, Aggregation, and Surface Activity of Extracted Soda Lignin

  • Galia Shulga,
  • Brigita Neiberte,
  • Valerija Kudrjavceva,
  • Anrijs Verovkins,
  • Arturs Viksna,
  • Sanita Vitolina,
  • Julija Brovkina and
  • Talrits Betkers

23 May 2025

Various pretreatment methods, often employed in wood biorefineries, aim to disrupt the wood architecture, thereby enhancing the efficiency of hemicellulose extraction for increasing the production of bio-ethanol, bio-gas, and bio-oil, as well as impr...

(This article belongs to the Special Issue Advanced Polymer Materials: Synthesis, Structure, and Properties)
  • Article
  • Open Access
29 Citations
8,083 Views
16 Pages

A comparative study among different pretreatment methods used for the fractionation of the birch outer bark components, including steam explosion, hydrothermal and organosolv treatments based on the use of ethanol/water media, is reported. The residu...

(This article belongs to the Section Natural Products Chemistry)