Cellulose processing using ionic liquids: An analysis of patents and technological trends
Suellen Rocha Vieira,
Jania Betânia Alves da Silva,
Luiggi Cavalcanti Pessôa,
Renata Quartieri Nascimento,
Karina Lizzeth Pedraza Galván,
Carolina Oliveira de Souza,
Lucas Guimarães Cardoso,
Jamille Santos Santana,
Denilson de Jesus Assis
Affiliations
Suellen Rocha Vieira
Graduate Program in Chemical Engineering (PPEQ), Polytechnic School, Federal University of Bahia (UFBA), 40210-630, Salvador, Bahia, Brazil
Jania Betânia Alves da Silva
Graduate Program in Chemical Engineering (PPEQ), Polytechnic School, Federal University of Bahia (UFBA), 40210-630, Salvador, Bahia, Brazil; Center for Exact and Technological Sciences, Collegiate of Mechanical Engineering, Federal University of Recôncavo of Bahia (UFRB), 44380-000, Cruz das Almas, Bahia, Brazil
Luiggi Cavalcanti Pessôa
Graduate Program in Chemical Engineering (PPEQ), Polytechnic School, Federal University of Bahia (UFBA), 40210-630, Salvador, Bahia, Brazil
Renata Quartieri Nascimento
Graduate Program in Biotechnology-Northeast Biotechnology Network (RENORBIO), Federal University of Bahia (UFBA), 40231-300, Salvador, Bahia, Brazil
Karina Lizzeth Pedraza Galván
Graduate Program in Biotechnology-Northeast Biotechnology Network (RENORBIO), Federal University of Bahia (UFBA), 40231-300, Salvador, Bahia, Brazil
Carolina Oliveira de Souza
Graduate Program in Biotechnology-Northeast Biotechnology Network (RENORBIO), Federal University of Bahia (UFBA), 40231-300, Salvador, Bahia, Brazil; Graduate Program in Food Science (PGAli)–College of Pharmacy, Federal University of Bahia (UFBA), 40110-100, Salvador, Bahia, Brazil; Department of Bromatological Analysis, College of Pharmacy, Federal University of Bahia (UFBA), 40110-100, Salvador, Bahia, Brazil
Lucas Guimarães Cardoso
Graduate Program in Chemical Engineering (PPEQ), Polytechnic School, Federal University of Bahia (UFBA), 40210-630, Salvador, Bahia, Brazil; Department of Engineering, University Salvador (UNIFACS), 41820-021, Salvador, Bahia, Brazil
Jamille Santos Santana
Graduate Program in Chemical Engineering (PPEQ), Polytechnic School, Federal University of Bahia (UFBA), 40210-630, Salvador, Bahia, Brazil
Denilson de Jesus Assis
Graduate Program in Chemical Engineering (PPEQ), Polytechnic School, Federal University of Bahia (UFBA), 40210-630, Salvador, Bahia, Brazil; Department of Engineering, University Salvador (UNIFACS), 41820-021, Salvador, Bahia, Brazil; Corresponding author. Graduate Program in Chemical Engineering (PPEQ), Polytechnic School, Federal University of Bahia (UFBA), 40210-630, Salvador, Bahia, Brazil.
The production of cellulose derivatives using ionic liquid (IL) as solvents and catalysts has become prominent over the last few years, since the process eliminates the use of toxic substances. This study aimed to map and understand the trends in cellulose processing using ILs by a patent analytic approach and technology life cycle modeling. The documents were searched on the Espacenet® and Orbit® platforms.The majority of innovations have come from companies based in developed countries. The data fitted to the sigmoid BiDoseResp model and the life cycle S-curve showed a market in an early stage of maturity. This mapping brings information that subsidizes decision-making regarding investments, research, and innovations aimed at IL-mediated cellulose treatment. Potential markets mostly use ILs of the imidazolium family in polymer chemistry, machinery, and biotechnology technologies. However, medical and pharmaceutical technologies and microstructure and nanostructure applications are still emerging, fostering perspectives for innovation.
