Interactions between polysulphides and stainless steel materials

J. Rämö, O. Hyökyvirta, M. Sillanpää

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)

Abstract

Ability of polysulphide to enhance the potential of digester materials (S30400, S31603, S32205, S32304) was studied in the impregnation stage of the pulping process. Polysulphides were generated by adding elemental sulphur to alkaline sulphide solutions. Polysulphide levels 0.3–0.48, 1.25–2, 5–8 and 12.5–20 g/l enhanced the potentials of the steels by 70, 90, 170 and 190 mV, respectively. The polysulphide concentrations were calculated values, because concentrations of polysulphides are very difficult to measure in kraft liquors. No weight changes were observed, but slight accumulation of sulphur onto surfaces, particularly onto S31603 was seen in X‐ray fluorescence analysis. Otherwise, differences in behaviour among the steel materials were minimal.
Original languageEnglish
Pages (from-to)37-39
Number of pages3
JournalMaterials and Corrosion
Volume54
Issue number1
DOIs
Publication statusPublished - 2003
MoE publication typeA1 Journal article-refereed

Fingerprint

Polysulfides
Stainless Steel
Stainless steel
steel
sulfur
Steel
fluorescence
Sulfur
sulfide
Sulfides
Impregnation
Fluorescence
polysulfide
material
digester
concentration (value)
analysis

Keywords

  • stainless steel
  • polysulfide
  • digester materials
  • alkaline sulphide solutions
  • sulphat
  • X-ray fluorescence analysis

Cite this

Rämö, J. ; Hyökyvirta, O. ; Sillanpää, M. / Interactions between polysulphides and stainless steel materials. In: Materials and Corrosion. 2003 ; Vol. 54, No. 1. pp. 37-39.
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abstract = "Ability of polysulphide to enhance the potential of digester materials (S30400, S31603, S32205, S32304) was studied in the impregnation stage of the pulping process. Polysulphides were generated by adding elemental sulphur to alkaline sulphide solutions. Polysulphide levels 0.3–0.48, 1.25–2, 5–8 and 12.5–20 g/l enhanced the potentials of the steels by 70, 90, 170 and 190 mV, respectively. The polysulphide concentrations were calculated values, because concentrations of polysulphides are very difficult to measure in kraft liquors. No weight changes were observed, but slight accumulation of sulphur onto surfaces, particularly onto S31603 was seen in X‐ray fluorescence analysis. Otherwise, differences in behaviour among the steel materials were minimal.",
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Interactions between polysulphides and stainless steel materials. / Rämö, J.; Hyökyvirta, O.; Sillanpää, M.

In: Materials and Corrosion, Vol. 54, No. 1, 2003, p. 37-39.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Interactions between polysulphides and stainless steel materials

AU - Rämö, J.

AU - Hyökyvirta, O.

AU - Sillanpää, M.

N1 - Project code: V8SU00883

PY - 2003

Y1 - 2003

N2 - Ability of polysulphide to enhance the potential of digester materials (S30400, S31603, S32205, S32304) was studied in the impregnation stage of the pulping process. Polysulphides were generated by adding elemental sulphur to alkaline sulphide solutions. Polysulphide levels 0.3–0.48, 1.25–2, 5–8 and 12.5–20 g/l enhanced the potentials of the steels by 70, 90, 170 and 190 mV, respectively. The polysulphide concentrations were calculated values, because concentrations of polysulphides are very difficult to measure in kraft liquors. No weight changes were observed, but slight accumulation of sulphur onto surfaces, particularly onto S31603 was seen in X‐ray fluorescence analysis. Otherwise, differences in behaviour among the steel materials were minimal.

AB - Ability of polysulphide to enhance the potential of digester materials (S30400, S31603, S32205, S32304) was studied in the impregnation stage of the pulping process. Polysulphides were generated by adding elemental sulphur to alkaline sulphide solutions. Polysulphide levels 0.3–0.48, 1.25–2, 5–8 and 12.5–20 g/l enhanced the potentials of the steels by 70, 90, 170 and 190 mV, respectively. The polysulphide concentrations were calculated values, because concentrations of polysulphides are very difficult to measure in kraft liquors. No weight changes were observed, but slight accumulation of sulphur onto surfaces, particularly onto S31603 was seen in X‐ray fluorescence analysis. Otherwise, differences in behaviour among the steel materials were minimal.

KW - stainless steel

KW - polysulfide

KW - digester materials

KW - alkaline sulphide solutions

KW - sulphat

KW - X-ray fluorescence analysis

U2 - 10.1002/maco.200390004

DO - 10.1002/maco.200390004

M3 - Article

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JO - Materials and Corrosion

JF - Materials and Corrosion

SN - 0947-5117

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ER -