Production of water soluble products from tall oil lignin

在这个合作项目中，莱克黑德大学化学工程系的Fatehi博士将与Resolute森林产品公司的Kelertas先生和Dokis先生一起，研究从安大略省桑德湾Resolute森林产品厂的高油生产过程中提取的木质素生产絮凝剂的情况。在塔尔油生产过程中，塔尔油粗油是通过酸化从硫酸盐法制浆黑液中分离出来的塔尔油皂来生产的。木质素和废酸是塔尔油生产过程中的副产品。它们被送回硫酸盐工艺的蒸发器，并与黑液混合燃烧。在这个拟议的CRD项目中，评估了从塔尔油工艺的木质素中生产絮凝剂的机会。将研究从木质素生产絮凝剂的各种创新途径，并将详细评估与塔尔油生产工艺最相容的工艺，以促进其在硫酸盐工艺中的适应和商业化。生产的絮凝剂被建议用于工厂的水和废水净化(即内部使用)以及城市废水、浓缩机和采矿工业的废物处理设施(即外部使用)。法特希博士和RESOLUTE的员工将每两个月密切合作一次，以便将开发的技术应用到RESOLUTE位于桑德贝的工厂的现有设施中并付诸实施。这一新工艺将帮助Resolute的工厂增加收入，降低总体运营成本。同时，它将使Fatehi博士能够研究与木质素基絮凝剂在废水系统中应用相关的基本原理，并成为开发木质素基增值产品的先驱。以木质素为基础的絮凝剂的生产是建立以硫酸盐为基础的生物精炼厂的一条途径，这将增加加拿大各地的硫酸盐纸浆厂的收入并使其多样化。

In this collaborative project, Dr. Fatehi of Chemical Engineering Department at Lakehead University along with Mr. Kelertas and Mr. Dokis of Resolute Forest Products will investigate the production of flocculants from lignin that is extracted from the tall oil production process of the Resolute Forest Products mill in Thunder Bay, ON. **In tall oil production process, crude tall oil is produced via acidulation of tall oil soap that is separated from black liquor of the kraft pulping process. Lignin and spent acids are the by-products of the tall oil production process. They are sent back to the evaporators of the kraft process and mixed with black liquor for burning. In this proposed CRD project, the opportunities for producing flocculants from lignin of the tall oil process is evaluated. Various innovative pathways will be examined to produce flocculants from lignin and the most compatible process with the tall oil production process will be evaluated in detail for facilitating its adaptation and commercialization in the kraft process. The produced flocculants are proposed to be used in water and wastewater purification of the mill (i.e., internal uses) as well as in municipal wastewater, thickeners and waste treatment facilities of the mining industry (i.e., external uses). Dr. Fatehi and Resolute's staff will collaborate closely on a bimonthly basis so that the developed technology can be adapted and practically implemented into the existing facilities of Resolute's mill in Thunder Bay. This new process will assist Resolute's mill in increasing its revenues and reducing its overall operation costs. Meanwhile, it will enable Dr. Fatehi to investigate the fundamentals associated with the application of lignin-based flocculants in wastewater systems and to be the pioneer in developing lignin-based value-added products. The production of lignin-based flocculants is a pathway to establish kraft-based biorefinery, which will increase and diversify the revenues of kraft pulp mills across Canada.**