Recovery of Lac Resin from the Aqueous Effluent of Shellac Industry

Shellac and aleuritic acid manufacturing industries generate a lot of alkaline aqueous effluent during the process of manufacture of shellac and aleuritic acid from the seedlac/sticklac. The generated effluent contains lac resin, lac wax, lac dye and other water-soluble organic acids. Shellac indust...

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Published inSustainable chemistry Vol. 4; no. 1; pp. 1 - 7
Main Authors Badhani, Gaurav, Yadav, Shruti, Reji, Elen, Adimurthy, Subbarayappa
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.12.2022
Subjects
acidification
aleuritic acid
Alkali Hydrolysis
aqueous effluent
Aqueous solutions
By products
Effluents
ethylacetate
Lac resin
Manufacturing
Manufacturing industry
Melting point
Melting points
NMR
Nuclear magnetic resonance
Organic acids
Organic chemistry
Recovery
Resins
Shellac
Solvents
West Bengal India
India
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Abstract Shellac and aleuritic acid manufacturing industries generate a lot of alkaline aqueous effluent during the process of manufacture of shellac and aleuritic acid from the seedlac/sticklac. The generated effluent contains lac resin, lac wax, lac dye and other water-soluble organic acids. Shellac industries in India face problems with the disposal of aqueous effluent due to the presence of considerable amounts of natural organic molecules and the dark colour solution. To address these problems, we have developed a novel method for the selective recovery of the lac resin from the alkaline aqueous effluent of shellac manufacturing industry. The recovered lac resin has been characterized by 13C-NMR, FT-IR and melting point and the data were compared with standard industrial-grade resin. The recovered lac resin was evaluated by the lac manufacturing industry for commercial applications.
AbstractList Shellac and aleuritic acid manufacturing industries generate a lot of alkaline aqueous effluent during the process of manufacture of shellac and aleuritic acid from the seedlac/sticklac. The generated effluent contains lac resin, lac wax, lac dye and other water-soluble organic acids. Shellac industries in India face problems with the disposal of aqueous effluent due to the presence of considerable amounts of natural organic molecules and the dark colour solution. To address these problems, we have developed a novel method for the selective recovery of the lac resin from the alkaline aqueous effluent of shellac manufacturing industry. The recovered lac resin has been characterized by 13C-NMR, FT-IR and melting point and the data were compared with standard industrial-grade resin. The recovered lac resin was evaluated by the lac manufacturing industry for commercial applications.
Author Adimurthy, Subbarayappa
Badhani, Gaurav
Yadav, Shruti
Reji, Elen
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Cites_doi 10.1016/S0040-4020(01)97149-2
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10.1039/C8GC03726D
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10.1016/S0040-4020(01)93058-3
ContentType Journal Article
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Copyright_xml – notice: 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.
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StartPage 1
SubjectTerms acidification
aleuritic acid
Alkali Hydrolysis
aqueous effluent
Aqueous solutions
By products
Effluents
ethylacetate
Lac resin
Manufacturing
Manufacturing industry
Melting point
Melting points
NMR
Nuclear magnetic resonance
Organic acids
Organic chemistry
Recovery
Resins
Shellac
Solvents
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Title Recovery of Lac Resin from the Aqueous Effluent of Shellac Industry
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