Preliminary Studies on Preparation of Synthetic Black Liquors
Abstract
Black liquor is an important by-product of the kraft process in the paper and pulp Industry. Black liquor is a complex solution consisting of various inorganic and organic chemicals. It can be very corrosive though the reasons have not yet been studied systematically. This article outlines the first set of experiments aimed at developing synthetic liquors that mimic the corrosivity of black liquor. The experiments involved the use of fractional factorial designs to study the large number of chemicals involved. SEM photomicrographs of some coupons exposed to synthetic liquors were found to have a similar corrosion morphology to coupons that had been exposed in real mill liquors.
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Kannan et al. measured the corrosivity of synthetic black liquor prepared with 23 chemicals on A283 carbon steel and found that sodium sulfite, abietic acid, dimethyl sulfide, pinene, sodium thiosulfate, and pyrogallol most contributed to corrosion.
“Kannan et al. [17] measured the corrosivity of synthetic black liquor prepared with a set of 23 chemicals on A283 carbon steel samples. The results indicated that sodium sulWte, abietic acid, dimethyl sulWde, pinene, sodium thiosulfate, and pyrogallol are the chemicals that most contributed to the corrosion of A283 carbon steel in synthetic liquor.”
From Effect of wood species on corrosion behavior of carbon steel and stainless steels in black liquors (2007) · cites this paper as [17]
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Effect of wood species on corrosion behavior of carbon steel and stainless steels in black liquors
Singh, P. M., & Anaya, A. (2007) · Corrosion Science · doi:10.1016/j.corsci.2006.04.020 · Cited by 29 · see citing works
- Authors
- Kannan, S., Bastek, P. D., & Kelly, R. G.
- Affiliations
- University of Virginia (US)
- ORCID
- Kelly, R.G.
- Venue
- CORROSION 1992
- Publisher
- NACE International
- Published
- 1992-04-27
- Pages
- 1-8
- OpenAlex
- W4409549513
- Cited by
- 2
- References
- 0
- FWCI
- 0.00
- Type
- conference paper
- Language
- en
- Open access
- closed
- Locations
- NACE CORROSION Conference (publishedVersion)
- Topics
- Physical Sciences › Materials Science › Materials Chemistry › Corrosion Behavior and Inhibition
- Physical Sciences › Engineering › Biomedical Engineering › Lignin and Wood Chemistry
- Physical Sciences › Materials Science › Metals and Alloys › Hydrogen embrittlement and corrosion behaviors in metals
- Keywords
- black liquor, kraft pulping, paper industry, corrosivity, corrosion morphology, corrosion testing, fractional factorial design
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