CA2305201C - Determination de la concentration d'especes anioniques par spectroscopie infrarouge proche - Google Patents

Determination de la concentration d'especes anioniques par spectroscopie infrarouge proche Download PDF

Info

Publication number
CA2305201C
CA2305201C CA002305201A CA2305201A CA2305201C CA 2305201 C CA2305201 C CA 2305201C CA 002305201 A CA002305201 A CA 002305201A CA 2305201 A CA2305201 A CA 2305201A CA 2305201 C CA2305201 C CA 2305201C
Authority
CA
Canada
Prior art keywords
liquor
solution
sample
path length
concentration
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CA002305201A
Other languages
English (en)
Other versions
CA2305201A1 (fr
Inventor
Michael Kester
Denys F. Leclerc
Thanh P. Trung
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FPInnovations
Aker Solutions Canada Inc
Original Assignee
Kvaerner Canada Inc
Pulp and Paper Research Institute of Canada
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CA002220913A external-priority patent/CA2220913C/fr
Application filed by Kvaerner Canada Inc, Pulp and Paper Research Institute of Canada filed Critical Kvaerner Canada Inc
Priority to CA002305201A priority Critical patent/CA2305201C/fr
Publication of CA2305201A1 publication Critical patent/CA2305201A1/fr
Application granted granted Critical
Publication of CA2305201C publication Critical patent/CA2305201C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/359—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3577—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing liquids, e.g. polluted water

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Paper (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
CA002305201A 1997-11-12 1998-11-03 Determination de la concentration d'especes anioniques par spectroscopie infrarouge proche Expired - Lifetime CA2305201C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002305201A CA2305201C (fr) 1997-11-12 1998-11-03 Determination de la concentration d'especes anioniques par spectroscopie infrarouge proche

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CA002220913A CA2220913C (fr) 1997-11-12 1997-11-12 Determination de la concentration de l'espece anionique par l'intermediaire de spectroscopie du proche infrarouge
CA2,220,913 1997-11-12
PCT/CA1998/001024 WO1999024815A1 (fr) 1997-11-12 1998-11-03 Determination de la concentration d'especes anioniques par spectroscopie infrarouge proche
CA002305201A CA2305201C (fr) 1997-11-12 1998-11-03 Determination de la concentration d'especes anioniques par spectroscopie infrarouge proche

Publications (2)

Publication Number Publication Date
CA2305201A1 CA2305201A1 (fr) 1999-05-20
CA2305201C true CA2305201C (fr) 2003-02-18

Family

ID=25679818

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002305201A Expired - Lifetime CA2305201C (fr) 1997-11-12 1998-11-03 Determination de la concentration d'especes anioniques par spectroscopie infrarouge proche

Country Status (1)

Country Link
CA (1) CA2305201C (fr)

Also Published As

Publication number Publication date
CA2305201A1 (fr) 1999-05-20

Similar Documents

Publication Publication Date Title
EP0850415B1 (fr) Determination du sulfure de sodium et de la sulfidite dans les lessives vertes et les solutions de cendres
US5282931A (en) Determination and control of effective alkali in kraft liquors by IR spectroscopy
EP0786082B1 (fr) Procede de determination de la teneur organique d'effluents provenant de fabriques de pate et de papier
EP1031023B1 (fr) Determination de la concentration d'especes anioniques par spectroscopie infrarouge proche
US8009277B2 (en) Sensor technique for black liquor oxidation control
ES2237487T3 (es) Determinacion del indice kappa en pulpas quimicas por espectrometria raman.
US6339222B1 (en) Determination of ionic species concentration by near infrared spectroscopy
US10054539B2 (en) Method for determining a property of a heterogeneous medium
US20020053640A1 (en) Determination of ionic species concentration by near infrared spectroscopy
EP1175611B1 (fr) Mesure de la concentration d'especes ioniques par spectroscopie infrarouge proche
US7390669B2 (en) Simultaneous and rapid determination of multiple component concentrations in a Kraft liquor process stream
CA2305201C (fr) Determination de la concentration d'especes anioniques par spectroscopie infrarouge proche
Kester et al. On-Line Determination of Kraft Liquor Constituents by Fourier-Transform Near
Chai et al. Rapid determination of total dissolved solids in black liquors by ATR-UV/Vis spectroscopy
FI62358C (fi) Foerfarande foer kontinuerlig maetning av effektivt alkali i alkaliska kokprocesser
LIQUORS LeClerc et a1.

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20181105