Improving the separation of guaiacol from n-hexane by adding choline chloride to glycol extracting agents

Andrés F. Arroyo-Avirama, Sebastián Ormazábal-Latorre, Ramakrishna Jogi, Nicolás F. Gajardo-Parra, César Pazo-Carballo, Moreno Ascani, Pasi Virtanen, José Matías Garrido, Christoph Held, Päivi Mäki-Arvela, Roberto I. Canales^*