Featured patents

Separation of Lignin From Hydrolyzate
US 08864941 B2, Oct. 21, 2014, Thoedora Retsina et al. / API Intellectual Property Holdings, LLC (Atlanta, US)
A process for separating and recovering lignin and lignosulfonates from a liquid…

Separation of Lignin From Hydrolyzate
US 08585863 B2, Nov. 19, 2013, Theodora Retsina et al. / API Intellectual Property Holdings, LLC (Atlanta, US)
A process for separating and recovering lignin and lignosulfonates from a liquid…

Patentorg has 2 documents under Sulfur Dioxide or Sulfite Containing Spent Liquor Patents.

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