Quantification of cyanate in pulp mill recovery streams using ion chromatography

Nikolai De Martini; M Kymalainen; M Forssen; Mikko Hupa

Quantification of cyanate in pulp mill recovery streams using ion chromatography

Nikolai De Martini, M Kymalainen, M Forssen, Mikko Hupa

Research output: Chapter in Book/Conference proceeding › Conference contribution › Scientific › peer-review

5 Citations (Scopus)

Abstract

A method for direct detn. of cyanate (OCN^1-) using ion chromatog. (IC) was applied to pulp mill recovery streams. This was necessary, as wet chem. methods were insufficient for accurate quantification of inorg. N species in these samples. This builds on earlier work in which an inorg. N species formed in smelt reacted to form NH₃ starting in the green liquor. This method allowed for the direct detn. of cyanate, the compd. shown to be the source of NH₃ formation in pulp mill recovery streams. The method can easily be run by labs. with an ion chromatograph equipped using a cond. detector with chem. suppressor and should not require significant effort in implementation. Two columns were explored: the Metrosep Anion Dual 2 and the Metrosep A SUPP 3. The Metrosep Anion Dual 2 worked quite well for cyanate, whereas the Metrosep A SUPP 3 was less applicable.

Original language	Undefined/Unknown
Title of host publication	International Chemical Recovery Conference: Changing Recovery Technology to Meet the Challenges of the Pulp and Paper Industry
Pages	83–86
Number of pages	4
Publication status	Published - 2001
MoE publication type	A4 Article in a conference publication
Event	conference; 2001-06-11; 2001-06-14 - Château Whistler Resort, Whistler, British Columbia, Canada Duration: 11 Jun 2001 → 14 Jun 2001

Conference

Conference	conference; 2001-06-11; 2001-06-14
Period	11/06/01 → 14/06/01

Cite this

@inproceedings{3932d6e9dda84eebb8170d6de819accf,

title = "Quantification of cyanate in pulp mill recovery streams using ion chromatography",

abstract = "A method for direct detn. of cyanate (OCN1-) using ion chromatog. (IC) was applied to pulp mill recovery streams. This was necessary, as wet chem. methods were insufficient for accurate quantification of inorg. N species in these samples. This builds on earlier work in which an inorg. N species formed in smelt reacted to form NH3 starting in the green liquor. This method allowed for the direct detn. of cyanate, the compd. shown to be the source of NH3 formation in pulp mill recovery streams. The method can easily be run by labs. with an ion chromatograph equipped using a cond. detector with chem. suppressor and should not require significant effort in implementation. Two columns were explored: the Metrosep Anion Dual 2 and the Metrosep A SUPP 3. The Metrosep Anion Dual 2 worked quite well for cyanate, whereas the Metrosep A SUPP 3 was less applicable.",

author = "{De Martini}, Nikolai and M Kymalainen and M Forssen and Mikko Hupa",

year = "2001",

language = "Odefinierat/ok{\"a}nt",

isbn = "1-896742-69-6",

pages = "83–86",

booktitle = "International Chemical Recovery Conference: Changing Recovery Technology to Meet the Challenges of the Pulp and Paper Industry",

note = "conference; 2001-06-11; 2001-06-14 ; Conference date: 11-06-2001 Through 14-06-2001",

}

Quantification of cyanate in pulp mill recovery streams using ion chromatography. / De Martini, Nikolai; Kymalainen, M; Forssen, M et al.
International Chemical Recovery Conference: Changing Recovery Technology to Meet the Challenges of the Pulp and Paper Industry. 2001. p. 83–86.

Research output: Chapter in Book/Conference proceeding › Conference contribution › Scientific › peer-review

TY - GEN

T1 - Quantification of cyanate in pulp mill recovery streams using ion chromatography

AU - De Martini, Nikolai

AU - Kymalainen, M

AU - Forssen, M

AU - Hupa, Mikko

PY - 2001

Y1 - 2001

N2 - A method for direct detn. of cyanate (OCN1-) using ion chromatog. (IC) was applied to pulp mill recovery streams. This was necessary, as wet chem. methods were insufficient for accurate quantification of inorg. N species in these samples. This builds on earlier work in which an inorg. N species formed in smelt reacted to form NH3 starting in the green liquor. This method allowed for the direct detn. of cyanate, the compd. shown to be the source of NH3 formation in pulp mill recovery streams. The method can easily be run by labs. with an ion chromatograph equipped using a cond. detector with chem. suppressor and should not require significant effort in implementation. Two columns were explored: the Metrosep Anion Dual 2 and the Metrosep A SUPP 3. The Metrosep Anion Dual 2 worked quite well for cyanate, whereas the Metrosep A SUPP 3 was less applicable.

AB - A method for direct detn. of cyanate (OCN1-) using ion chromatog. (IC) was applied to pulp mill recovery streams. This was necessary, as wet chem. methods were insufficient for accurate quantification of inorg. N species in these samples. This builds on earlier work in which an inorg. N species formed in smelt reacted to form NH3 starting in the green liquor. This method allowed for the direct detn. of cyanate, the compd. shown to be the source of NH3 formation in pulp mill recovery streams. The method can easily be run by labs. with an ion chromatograph equipped using a cond. detector with chem. suppressor and should not require significant effort in implementation. Two columns were explored: the Metrosep Anion Dual 2 and the Metrosep A SUPP 3. The Metrosep Anion Dual 2 worked quite well for cyanate, whereas the Metrosep A SUPP 3 was less applicable.

M3 - Konferensbidrag

SN - 1-896742-69-6

SP - 83

EP - 86

BT - International Chemical Recovery Conference: Changing Recovery Technology to Meet the Challenges of the Pulp and Paper Industry

T2 - conference; 2001-06-11; 2001-06-14

Y2 - 11 June 2001 through 14 June 2001

ER -