On August 29, 2022, Fu, Qiang; Shofner, Meisha L.; Sinquefield, Scott A.; Nair, Sankar published an article.Application In Synthesis of 2,3-Dihydroxypropanoic acid The title of the article was Recovery and Enrichment of Organic Acids from Kraft Black Liquor by an Adsorption-Based Process. And the article contained the following:
Kraft black liquor (BL) is a complex multicomponent byproduct from wood pulping processes. After lignin, carbohydrate-derived carboxylic acids are the second most abundant class of organics in kraft BL and comprise a potential biomass-derived feedstock of more than 50 million tons/yr globally. These acids can be valorized in biofuels and biobased chems. production or further fractionated to produce specific high-value carboxylic acids from the mixture However, both of these routes require a viable process to sep. carboxylic acids from BL. In this work, an adsorption-based process was developed to address this challenging issue. The kraft BL stream was first pretreated to remove most of the lignin by membrane nanofiltration (NF) combined with lignin-selective adsorption. To sep. organic acids from this pretreated BL, organophilic/hydrophobic granulated activated carbon (GAC) was identified as a promising adsorbent with excellent organic/inorganic selectivity and adsorption capacity (>100 mg/g GAC). We present comprehensive adsorption measurements and anal. to characterize the adsorbent and develop a viable cyclic operation scheme for the adsorption process. The GAC adsorbents show robust separation performance over 20+ cycles. We have successfully obtained concentrated aqueous organic acid mixtures with ~95% purity from kraft BL. We propose a modified kraft process with energy-efficient BL dewatering by NF and organic acids recovery for valorization. The experimental process involved the reaction of 2,3-Dihydroxypropanoic acid(cas: 473-81-4).Application In Synthesis of 2,3-Dihydroxypropanoic acid
The Article related to enrichment organate kraft black liquor adsorption, Cellulose, Lignin, Paper, and Other Wood Products: Pulp and Liquors and other aspects.Application In Synthesis of 2,3-Dihydroxypropanoic acid
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