A solvent extraction approach to recover acetic acid from mixed waste acids produced during semiconductor wafer process

Shin, Chang-Hoon; Kim, Ju-Yup; Kim, Junyoung; Kim, Hyun-Sang; Lee, Hyang-Sook; Mohapatra, Debasish; Ahn, Jae-Woo; Bae, Wookeun

doi:10.1016/j.jhazmat.2008.06.029

Cited by 34 publications

(14 citation statements)

References 6 publications

(7 reference statements)

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“…Ideally, a process is required to separate the acids alone and recycle the remaining materials back to earlier stages in the process. The separation of acetic acid from water has been explored for many years, with various technologies being developed such as fractional distillation, azeotropic dehydration distillation [47], solvent extraction [48], combination of the above methods, extractive distillation [49,50], and adsorption [51].…”

Section: Product Recovery and Purificationmentioning

confidence: 99%

Bio-produced Acetic Acid: A Review

Vidra

Németh

2017

Period. Polytech. Chem. Eng.

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Section: Product Recovery and Purificationmentioning

confidence: 99%

Bio-produced Acetic Acid: A Review

Vidra

Németh

2017

Period. Polytech. Chem. Eng.

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“…Glycolaldehyde up to 85 % could be recovered in a multistage cross-current back-extraction with water [184]. Physical extraction using organic solvents has also been widely studied to extract acetic acid from the aqueous fraction [56,60,85,170]. However, physical extraction is thought to be rather ineffective, because the distribution coefficients are remarkably low and almost temperature independent [68,81].…”

Section: Pyrolysis Oil: a Viable Source For Platform Chemicalsmentioning

confidence: 99%

Microbial conversion of pyrolytic products to biofuels: a novel and sustainable approach toward second-generation biofuels

Islam

Hassan

et al. 2015

Journal of Industrial Microbiology and Biotechnology

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This review highlights the potential of the pyrolysis-based biofuels production, bio-ethanol in particular, and lipid in general as an alternative and sustainable solution for the rising environmental concerns and rapidly depleting natural fuel resources. Levoglucosan (1,6-anhydrous-β-D-glucopyranose) is the major anhydrosugar compound resulting from the degradation of cellulose during the fast pyrolysis process of biomass and thus the most attractive fermentation substrate in the bio-oil. The challenges for pyrolysis-based biorefineries are the inefficient detoxification strategies, and the lack of naturally available efficient and suitable fermentation organisms that could ferment the levoglucosan directly into bio-ethanol. In case of indirect fermentation, acid hydrolysis is used to convert levoglucosan into glucose and subsequently to ethanol and lipids via fermentation biocatalysts, however the presence of fermentation inhibitors poses a big hurdle to successful fermentation relative to pure glucose. Among the detoxification strategies studied so far, over-liming, extraction with solvents like (n-butanol, ethyl acetate), and activated carbon seem very promising, but still further research is required for the optimization of existing detoxification strategies as well as developing new ones. In order to make the pyrolysis-based biofuel production a more efficient as well as cost-effective process, direct fermentation of pyrolysis oil-associated fermentable sugars, especially levoglucosan is highlly desirable. This can be achieved either by expanding the search to identify naturally available direct levoglusoan utilizers or modify the existing fermentation biocatalysts (yeasts and bacteria) with direct levoglucosan pathway coupled with tolerance engineering could significantly improve the overall performance of these microorganisms.

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“…The semiconductor production process usually comprises deposition, resist coating, light exposure, etching, resist removal, and rinsing, which generate considerable acid waste [2]. More than 200 high-purity organic and inorganic compounds and large quantities of ultrapure water are used during the production of semiconductor chips [3].…”

Section: Introductionmentioning

confidence: 99%

Chemical Waste Management in the U.S. Semiconductor Industry

Shen

Tran

2018

Sustainability

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Sustainability has become the biggest concern of the semiconductor industry because of hundreds of high-purity organic and inorganic compounds involved in manufacturing semiconductors not being treated economically. The aim of this study was to understand how semiconductor companies manage their chemical wastes, by analyzing the U.S. Environmental Protection Agency's Toxics Release Inventory data for hydrogen fluoride, nitric acid, ammonia, N-methyl-2-pyrrolidone, hydrochloric acid, nitrate compounds, and sulfuric acid. Cluster analysis was adopted to classify the U.S. semiconductor companies into different performance groups according to their waste management approaches. On the basis of the results, twenty-seven companies were classified in the "best performance" category for the waste management of two or more chemicals. However, 15 companies were classified in the worst performance categories. The semiconductor companies can refer to our results to understand their performance and which companies they should benchmark regarding chemical waste management. City governments can also refer to our results to employ suitable policies to reduce the negative impacts of the chemical waste from regional semiconductor companies.

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A solvent extraction approach to recover acetic acid from mixed waste acids produced during semiconductor wafer process

Cited by 34 publications

References 6 publications

Bio-produced Acetic Acid: A Review

Bio-produced Acetic Acid: A Review

Microbial conversion of pyrolytic products to biofuels: a novel and sustainable approach toward second-generation biofuels

Chemical Waste Management in the U.S. Semiconductor Industry

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