A NEW CONCEPT OF ABSOLUTE PHYSICAL MEASUREMENT ... · In-process characterisation of concentrated...
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A NEW CONCEPT OF ABSOLUTE PHYSICAL MEASUREMENT In-process characterisation of concentrated dispersions… Optimisation and control of process : • emulsification • polymerisation • crystallisation • dissolution On line On line On line > ACQUISITIONS • One measurement every 0.1 second to every 10 seconds • Up to 100 000 acquisitions > AUTO CALIBRATION • Calibration on a moving target every time the system is started up and also periodically. > INDICATOR • Real time data display: automatic or manual selection of the Backscattered or Transmitted intensity to be displayed. > SOFTWARE • Windows 95, 98 and NT compatible • Date and time: automatic and programmable • Setting program: acquisition frequency and duration for one to several phases • Data transfer: copy/paste • Different visualisation modes • Diameter/volume fraction calculation. > WIDE MEASUREMENT RANGE • Concentration: 0 to 60% v/v • Particle diameter: 0.1 to 5000 μm. > ERGONOMICS AND SAFETY • Design to function in laboratory, pilot and production plant conditions • Product temperature: from 5 to 100°C • Internal pressure: from 0,3 to 5 bars • Can be sterilized (NF X42-101) • Easy to maintain, easy dismantling and cleaning operations. > OPTICAL SENSOR • Optical measurement on a glass cell where the product is circulating • Emission: pulsed near-infrared light (850 nm) • Detection: photo diodes (one for Backscattering, one for Transmission) • Pressure sealed system: IP 55. > PRODUCT CIRCULATION SYSTEM • The product is circulating through the Optical Sensor using a pump (gear pump, peristaltic or centrifugal pump) to be chosen in accordance with process, product and working conditions. > INDICATOR • 50 x 20 mm alphanumeric display, 4 digits. > MINIMUM COMPUTER CONFIGURATION • IBM-compatible computer (minimum Pentium 166 MHz, 8.32 Ram) • Microsoft Windows 95, 98 and NT. > COMMUNICATION LINK • From the Optical Sensor to the Indicator: screened cable with tight connection • From the Indicator to the Computer: RS 232C interface. > OPTICAL SENSOR • 140 mm height, 140 mm diameter, 7 kg weight, connections with DN 25 flange > INDICATOR • 315 mm height, 200 mm width, 280 mm depth, 7 kg weight. > The Turbiscan On Line was developed thanks to ANVAR and REGION MIDI-PYRENEES support 10, impasse Borde Basse 31240 L’Union - France Tél. +33 (0)5 62 89 29 29 Fax +33 (0)5 62 89 29 20 www.formulaction.fr [email protected] > features > specifications > dimensions D I S T R I B U T O R > applications > application fields > customers The TurbiScan On Line is mainly used for the optimisation and control of processes in Laboratories, Pilot and Production plants. All processes involving liquid dispersions (suspensions, emulsions and foams) can be monitored through the light transmission (for clear products) and backscattering (for turbid to opaque products), and quantified through the λ or λ* measurement. TurbiScan On Line can convert λ or λ* measurements into concentration (Φ) or diameter (d). From a simple display of the intensity changes on the indicator to a precise study of the physical changes with the software, the TurbiScan On Line is the perfect tool to optimise, develop and control a process. Some of the major companies relying on instruments developed by FormulAction: > Emulsification Flocculation Polymerisation Precipitation Crystallisation Grinding Dissolution Filtration Homogenisation… > Polymers Pharmaceuticals Cosmetics Detergents Glues and varnishes Agro-food Waste-water treatment Paints and cements Pigments and inks Agro-chemical Petroleum and lubricants Bio-chemistry Paper Textiles Photography ELF-A TOCHEM, FUJI-XEROX, HENKEL, HUTCHINSON, L’ORÉAL, MERCK, MOBIL, NESTLÉ, NOVARTIS (CIBA-GEIGY), PPG INDUSTRIES, PROCTER & GAMBLE, RHÔNE-POULENC… © (Bien vu!) C R É A T I O N G R A P H I Q U E • 05 61 00 91 55
Transcript of A NEW CONCEPT OF ABSOLUTE PHYSICAL MEASUREMENT ... · In-process characterisation of concentrated...
A N E W C O N C E P T O F A B S O L U T E P H Y S I C A L M E A S U R E M E N T
In-processcharacterisation of
concentrateddispersions…
Optimisation and controlof process :
• emulsification• polymerisation• crystallisation• dissolution
On line
On lineOn line> ACQUISITIONS
• One measurement every 0.1 second to every 10seconds
• Up to 100 000 acquisitions
> AUTO CALIBRATION• Calibration on a moving target every time the
system is started up and also periodically.
> INDICATOR• Real time data display: automatic or manual
selection of the Backscattered or Transmittedintensity to be displayed.
> SOFTWARE• Windows 95, 98 and NT compatible• Date and time: automatic and programmable
• Setting program: acquisition frequency andduration for one to several phases
• Data transfer: copy/paste• Different visualisation modes• Diameter/volume fraction calculation.
> WIDE MEASUREMENT RANGE• Concentration: 0 to 60% v/v• Particle diameter: 0.1 to 5000 µm.
> ERGONOMICS AND SAFETY• Design to function in laboratory, pilot and
production plant conditions• Product temperature: from 5 to 100°C• Internal pressure: from 0,3 to 5 bars• Can be sterilized (NF X42-101)• Easy to maintain, easy dismantling and cleaning
operations.
> OPTICAL SENSOR• Optical measurement on a glass cell where the
product is circulating• Emission: pulsed near-infrared light (850 nm)• Detection: photo diodes (one for Backscattering,
one for Transmission)• Pressure sealed system: IP 55.
> PRODUCT CIRCULATION SYSTEM• The product is circulating through the Optical
Sensor using a pump (gear pump, peristaltic orcentrifugal pump) to be chosen in accordance withprocess, product and working conditions.
> INDICATOR• 50 x 20 mm alphanumeric display, 4 digits.
> MINIMUM COMPUTER CONFIGURATION• IBM-compatible computer (minimum Pentium 166
MHz, 8.32 Ram)• Microsoft Windows 95, 98 and NT.
> COMMUNICATION LINK• From the Optical Sensor to the Indicator: screened
cable with tight connection• From the Indicator to the Computer: RS 232C
interface.
> OPTICAL SENSOR• 140 mm height, 140 mm diameter, 7 kg weight, connections with DN 25 flange
> INDICATOR• 315 mm height, 200 mm width, 280 mm depth, 7 kg weight.
> The Turbiscan On Line wasdeveloped thanks to ANVAR andREGION MIDI-PYRENEES support
10, impasse Borde Basse31240 L’Union - FranceTél. +33 (0)5 62 89 29 29Fax +33 (0)5 62 89 29 [email protected]
> features
> specifications
> dimensions
D I S T R I B U T O R
> applications
> application fields
> customers
The TurbiScan On Line is mainlyused for the optimisation andcontrol of processes inLaboratories, Pilot and Productionplants. All processes involving liquiddispersions (suspensions,emulsions and foams) can bemonitored through the lighttransmission (for clear products)and backscattering (for turbid toopaque products), and quantifiedthrough the λ or λ* measurement.
TurbiScan On Line can convert λ orλ* measurements intoconcentration (Φ) or diameter (d).
From a simple display of theintensity changes on the indicatorto a precise study of the physicalchanges with the software, theTurbiScan On Line is the perfecttool to optimise, develop andcontrol a process.
Some of the major companies relying on instrumentsdeveloped by FormulAction:
> EmulsificationFlocculationPolymerisationPrecipitationCrystallisationGrindingDissolutionFiltrationHomogenisation…
> PolymersPharmaceuticalsCosmeticsDetergentsGlues and varnishesAgro-foodWaste-water treatmentPaints and cementsPigments and inksAgro-chemicalPetroleum and lubricantsBio-chemistryPaperTextilesPhotography
ELF-ATOCHEM, FUJI-XEROX, HENKEL, HUTCHINSON, L’ORÉAL,MERCK, MOBIL, NESTLÉ, NOVARTIS (CIBA-GEIGY), PPG INDUSTRIES,
PROCTER & GAMBLE, RHÔNE-POULENC…
© (
Bie
n v
u!)
CR
ÉA
TI
ON
G
RA
PH
IQ
UE
•
05 6
1 00
91
55
On lineMONITORS AND QUANTIFIESTHE EFFECTS OF PROCESS VARIABLES ON YOUR DISPERSED SYSTEM
Multiple light scatteringmeasurement forconcentrateddispersions analysis
> The only optical characterisationparameters for concentrated dispersions
Emulsification of aconcentrated
dispersion.
User friendlyinterface
> to improve process efficiencyand product quality > through multiple light scattering
> indicator
> software performances
HO
W IT
WO
RK
S?
THE INNOVATEABSOLUTE PHYSICAL
QUANTIFICATION
λ λ*
The TurbiScan On Line’sIndicator allows the analysis ofthe dispersion characteristics.It displays automatically thetransmitted or backscatteredlight intensities in real time
(transmitted light intensity foroptically thin dispersions,backscattered intensity fordense media). Moreover, youcan choose to indicate thetransmission or the
backscattering manually.These set up intensities arepercentage compared tointensities Transmitted or Backscattered by externalstandards.
Specifically designed for laboratory, pilot plant and production set up,it operates on emulsions and suspensions without dilution:• 0 to 60% v/v concentration• 0,1 µm to 5 mm particle size.
The optical sensorconsists of a pulsednear-infrared light sourceand two synchronousdetectors:• The transmission
detector picks up thelight transmittedthrough the product,
• The backscatteringdetector receives thelight backscattered bythe product.
The optical sensoracquires transmission
and backscattering dataup to every 0,1 second(every 0,1 to every 10seconds).The signal is first treatedby TurbiScan On Line’scurrent to voltageconverter. The indicatormicroprocessor’ssoftware handles dataacquisition, real timeindication of thetransmitted andbackscattered intensitiesand computer dialogue.
The TurbiSoft On Linesoftware shows all dispersedphase changes in an easy tounderstand format.All the acquisitions can beprogrammed: you canchoose the frequency andthe duration of theacquisitions in one toseveral phases of work.The TurbiSoft On Line has atoolbar to make frequentlyused functions easier toaccess.The toolbar is designed withicon buttons for one toucheasy to use. Availablefunctions include viewing oftransmission,backscattering, λ, λ*,calculation of mean diameteror volume fraction on a zoneor on a point, auto zoom,define zoom region, setacquisitions, acquire, stopacquiring, refresh thescreen.Typical windows buttons arealso included in the toolbar(new file, open, save, print,cut, copy and paste).
λλ*TR
AN
SM
ISSIO
NB
AC
KSC
ATTE
RIN
G
The backscattered (BS) and transmitted (T) light fluxes measured by the opticalsensors depend on the mean path length of photons in the dispersion:λ (for transmission) and λ* (for backscattering).
These physical characterisation parameters are directlyrelated to particle diameter (d) and volume fraction (Φ)
mean path length of photonsin the dispersion (in µm)& λ*
BS
d
% of backscattered light
mean path length ofphotons (in µm)
mean particulediameter (in µm)
Time
Time
Time
Concentration andrefractive indexes
Time
Dissolution of a concentrated dispersion
application example
g(d) = asymmetry factor
Qs(d) = scattering efficiency factor
r = tube radius
