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The Process Chemical Group combines a knowledge
of process chemistry with analytical skills to perform both
routine evaluations and specialized tests for our clients’ individual
requirements. From
black liquor calorific value to pulp carbohydrate constituents,
Econotech can quickly and accurately analyze your material by
drawing from a full range of liquor and pulp studies. As authorities on the pulp manufacturing
process, we understand the scientific reasoning behind the numbers,
and know when to question unusual data.
The Process Chemical Group can analyze process stream
samples from pulping, bleaching, recausticizing, recovery and paper
machine
areas of a mill. From elemental analysis to the identification
of scales or deposits, we take the time to examine the problems and generate
the
solutions our clients need.
Econotech follows TAPPI, PAPTAC, SCAN, ASTM and other standard methods. The accuracy of our results is ensured
by extensive in-house QA/QC, as well as external inter-laboratory calibration.
CONTACT
Thomas Yuen <firstname>@econotech.com
Please click on the link to access a complete list of our Process Chemical Analysis Services.
WOOD, CHIPS, HOG
FUEL AND SLUDGE
- salt (chloride) and sulfur content
- DCM-solvent extractives (pitch control)
- caustic and hot water extractives
- calorific value
- ash content
- carbohydrates
- metals and elemental analysis
- potential turpentine or tall oil
- proximate and ultimate analysis
WHITE LIQUOR AND GREEN LIQUOR SMELT
- A-B-C titration
- trace metals
- reduction efficiency
- anions (hydroxide, carbonate, sulfide, sulfate)
- corrosive anions (chloride, sulfite, thiosulfate, polysulfide)
BLACK LIQUOR
- residual alkali (EA, AA, TTA)
- carbohydrates
- higher heating value
- organic/inorganic ratio (sulfated ash)
- elemental CHNO
- metals by ICP or AA
- total solids
- boiling point rise
- swelling characteristics
- tall oil content
- UV lignin
- viscosity profile and black liquor oxidation at different temperature and
solids levels
- anions (sulfur, sulfide, sulfate and carbonate)
- corrosive anions (chloride, sulfite, thiosulfate, polysulfide)
- black liquor scale analysis (Burkite, Pirsonite)
CONDENSATE
- sulfide and methyl mercaptans
- dimethyl sulfide and dimethyl disulfide
- methanol
- Granatelli total reduced sulfur
- terpenes
PULP
- caustic solubility (hemicellulose)
- carbohydrates (galactan, glucan, mannan, arabinan, xylan)
- BOD and COD
- carboxyl group
- pentosans
- alpha, beta and gamma cellulose
- total (TOX), extractable (EOX), and adsorbable (AOX) organic halogen
- copper and kappa numbers
- chloride
- viscosity, degree of polymerization
- DCM-solvent (pitch) and water extractables
- metals by ICP or AA
- anions (soluble sulfate, sulfite)
- hexavalent chromium
- Klason lignin
- total sulfur
- pH
- extractable non-ionic surfactant
- total reducible sulfur (TRS)
PROCESS CLOSURE
- full range of process and non-process elemental analyses of all inputs
and outputs for material balance and corrosion studies
OTHER PROCESS STREAMS
- lime, limestone and reburned lime
- sulfite liquors
- tall oil, spent acid
- digester, recovery, evaporator and other area scales
- precipitator dust, fly ash and saltcake
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