Rapeseed – A Valuable Renewable Bioresource

Tofănică, Bogdan Marian; Polymers, Prof. dr. docent Dimitrie Mangeron Blvd. Synthetic

doi:10.35812/cellulosechemtechnol.2019.53.81

Cited by 10 publications

(4 citation statements)

References 43 publications

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“…To ensure the proposed use of BL residue is compatible with existing industrial lignin valorization processes, such as the "LignoBoost" process for lignin isolation from BL, [36] the industrially obtained BL was acidified until pH = 2.0. Additionally, pre-acidification of the BL prior to contacting it with the leaching solution avoids the risk of unwanted precipitation and acid neutralization due to the alkaline nature of the raw BL (pH ~14.0).…”

Section: Characterization Of the Acidified Black Liquormentioning

confidence: 99%

Repurposing Kraft black Liquor as Reductant for Enhanced Lithium‐Ion Battery Leaching

Carreira,

Nogueira,

Rocha

et al. 2024

ChemSusChem

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The economic advantages of H2SO4 make it the acid of choice for the hydrometallurgical treatment of waste lithium‐ion batteries (LIBs). However, to facilitate the full dissolution of the higher valency metal oxides present in the cathode black mass, a suitable reducing agent is required. Herein, the application of industrial black liquor (BL) obtained from the Kraft pulping for papermaking is investigated as a renewable reducing agent for the enhanced leaching of transition metals from LIB powder with H2SO4. The addition of acidified BL to H2SO4 significantly improved the leaching efficiency for a range of LIB cathode chemistries, with the strongest effect observed for manganese‐rich active material. Focusing on NMC111 (LiMnxCoyNizO2) material, a linear correlation between the BL concentration and the leaching yield of Mn was obtained, with the best overall leaching efficiencies being achieved for 2.0 mol L‐1 H2SO4 and 50 vol% of BL at 353 K. A quasi‐total degradation of oxygenated and aromatic groups from the BL during NMC111 dissolution was observed after leaching, suggesting that these chemical groups are essential for LIB reduction. Finally, the leached transition metals could be easily recovered by pH adjustment and oxalic acid addition, closing the resource loop and fostering resource efficiency.

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Section: Characterization Of the Acidified Black Liquormentioning

confidence: 99%

Repurposing Kraft black Liquor as Reductant for Enhanced Lithium‐Ion Battery Leaching

Carreira,

Nogueira,

Rocha

et al. 2024

ChemSusChem

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“…Cellulose for hydrogel production may be extracted from paper, food and agricultural wastes [77]. Rapeseed stalks [78][79][80], corn stalks [81][82][83], wheat straw [84], bagasse [85], flax fibers [86], thanaka heartwood [87], okara [88], tea leaf residues [89], sago pith [90], various fruit peel [91] and rinds [92], soybean stem [93], waste paper and cardboard [94][95][96][97][98] contain a sufficient amount of cellulose (Table 1) to extract and produce new functional materials, such as hydrogels. Thus, in agricultural wastes, such as annual plant residues, the content of cellulose varies in a wide range from 20 to 42% (Table 1) depending on the origin of the plant and the method of extraction.…”

Section: Raw Materialsmentioning

confidence: 99%

Cellulose-Based Metallogels—Part 1: Raw Materials and Preparation

Михаилиди

Volf

Belosinschi

et al. 2023

Gels

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Metallogels are a class of materials produced by the complexation of polymer gels with metal ions that can form coordination bonds with the functional groups of the gel. Hydrogels with metal phases attract special attention due to the numerous possibilities for functionalization. Cellulose is preferable for the production of hydrogels from economic, ecological, physical, chemical, and biological points of view since it is inexpensive, renewable, versatile, non-toxic, reveals high mechanical and thermal stability, has a porous structure, an imposing number of reactive OH groups, and good biocompatibility. Due to the poor solubility of natural cellulose, the hydrogels are commonly produced from cellulose derivatives that require multiple chemical manipulations. However, there is a number of techniques of hydrogel preparation via dissolution and regeneration of non-derivatized cellulose of various origins. Thus, hydrogels can be produced from plant-derived cellulose, lignocellulose and cellulose wastes, including agricultural, food and paper wastes. The advantages and limitations of using solvents are discussed in this review with regard to the possibility of industrial scaling up. Metallogels are often formed on the basis of ready-made hydrogels, which is why the choice of an adequate solvent is important for obtaining desirable results. The methods of the preparation of cellulose metallogels with d-transition metals in the present state of the art are reviewed.

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“…RS stalk and straw also present interest in pulping and papermaking industries [39][40][41]. The potential of RS straws as source of lignocellulosic fibers can also be valorized for the production of biocomposite materials [42,43].…”

Section: The Circular Economy Approach and Management Of Rape Biomassmentioning

confidence: 99%

Valorization of Rapeseed Waste Biomass in Sorption Processes for Wastewater Treatment

Morosanu¹,

Teodosiu²,

Tofan³

et al. 2021

Environmental Issues and Sustainable Development

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Circular economy provides an efficient framework for effective biomass valorization, through strategic use and processing of resources and waste reuse. Being the second largest energetic crop, rapeseed (RS) presents a high potential in this sense. However, good management of the large quantity of generated wastes from agro-industrial activities is required. The most common management strategies in this sense refer to the reuse of RS wastes (mainly stems and press-cake) for animal feed, compost, soil amendment and fertilizer. Valorization of RS wastes as adsorbent for wastewater treatment is attractive. Despite the fact that only few articles on this subject exist in literature, they are sufficient to reflect the potential of this adsorbent to remove both inorganic and organic compounds from aqueous phase. The rapeseed wastes were used in native form (for diluted effluents) or modified by chemical or thermal treatment (for concentrated effluents or large molecule contaminants). This chapter will provide a review on the RS wastes management strategies, highlighting the applications for removing contaminants from wastewater in single and multi-component systems, in static or continuous operation mode.

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Rapeseed – A Valuable Renewable Bioresource

Cited by 10 publications

References 43 publications

Repurposing Kraft black Liquor as Reductant for Enhanced Lithium‐Ion Battery Leaching

Repurposing Kraft black Liquor as Reductant for Enhanced Lithium‐Ion Battery Leaching

Cellulose-Based Metallogels—Part 1: Raw Materials and Preparation

Valorization of Rapeseed Waste Biomass in Sorption Processes for Wastewater Treatment

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