Allan A Johansson

Title: The Innovative Contributions of Allan A Johansson

Introduction

Allan A Johansson is a notable inventor based in Meyrin, Switzerland. He has made significant contributions to the field of materials science, particularly in the delignification of ligno-cellulosic materials. His innovative methods have the potential to enhance the efficiency of cellulose production, which is crucial for various industrial applications.

Latest Patents

Johansson holds a patent for a method titled "Method for the simultaneous delignification of wood and other." This method involves delignifying ligno-cellulosic materials while efficiently separating their constituents. The process entails heating these materials in an aqueous acid medium in the presence of phenol compounds. Following this, the reaction medium is drained and washed to isolate the purified solid cellulose pulp. The liquid phase separates into two layers: an aqueous layer rich in pentoses and an organic layer rich in phenols and lignin. Notably, the latter can provide a quantity of phenols equal to that used in the delignification stage through distillation and pyrolysis of the residue.

Career Highlights

Allan A Johansson is associated with the Battelle Memorial Institute, where he has been able to apply his expertise in innovative material processing. His work has contributed to advancements in sustainable practices within the industry.

Collaborations

Johansson has collaborated with notable colleagues such as Herve Tournier and Jean-Pierre Sachetto. Their combined efforts have furthered research and development in the field of ligno-cellulosic material processing.

Conclusion

Allan A Johansson's contributions to the field of materials science, particularly through his patented method for delignification, highlight his innovative spirit and commitment to advancing sustainable practices. His work continues to influence the industry positively.