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1. WO2007095739 - ANALYSIS OF THIN LIQUID FILMS

Publication Number WO/2007/095739
Publication Date 30.08.2007
International Application No. PCT/CA2007/000268
International Filing Date 21.02.2007
IPC
G01N 27/00 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
G01N 27/92 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
92by investigating breakdown voltage
G01B 7/06 2006.01
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
7Measuring arrangements characterised by the use of electric or magnetic means
02for measuring length, width, or thickness
06for measuring thickness
G01N 33/26 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/-G01N31/131
26Oils; Viscous liquids; Paints; Inks
CPC
G01B 7/06
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
7Measuring arrangements characterised by the use of electric or magnetic means
02for measuring length, width or thickness
06for measuring thickness
G01N 33/2847
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
26Oils; viscous liquids; paints; inks
28Oils ; , i.e. hydrocarbon liquids
2835specific substances contained in the oil or fuel
2847Water in oil
Applicants
  • THE GOVERNORS OF THE UNIVERSITY OF ALBERTA [CA]/[CA] (AllExceptUS)
  • BHATTACHARJEE, Subir [IN]/[CA] (UsOnly)
  • KARIMI MOSTOWFI, Farshid [IR]/[CA] (UsOnly)
  • MASLIYAH, Jacob [CA]/[CA] (UsOnly)
  • CZARNECKI, Jan [CA]/[CA] (UsOnly)
  • MUSIAL, Elizeusz Lucjusz [PL]/[CA] (UsOnly)
Inventors
  • BHATTACHARJEE, Subir
  • KARIMI MOSTOWFI, Farshid
  • MASLIYAH, Jacob
  • CZARNECKI, Jan
  • MUSIAL, Elizeusz Lucjusz
Agents
  • LAMBERT, Anthony, R.
Priority Data
60/775,15121.02.2006US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ANALYSIS OF THIN LIQUID FILMS
(FR) ANALYSE DE FILMS LIQUIDES MINCES
Abstract
(EN)
A novel microfluidic device has been developed to measure stability of thin liquid films of water in oil emulsions using electrochemical perturbation of interfaces. This new device can be utilized in rapid classification of de-emulsifiers used in petroleum industries. Although water/crude oil emulsions have been the primary focus of this research, this measurement platform can be used in other industries such as food, cosmetics and bio-engineering (bilayer lipid membranes) as well as environmental remediation of oil spills. The compact design of the device and replacement of the mechanical measurements such as pressure with electrical signal measurements contributes in substantial size reduction of the experimental platform so that it can be employed for onsite measurements in remote areas.
(FR)
L'invention concerne un nouveau dispositif micro-fluidique développé pour mesurer la stabilité de films liquides minces d'émulsions d'eau dans l'huile par perturbation électrochimique d'interfaces. Ce nouveau dispositif peut être employé dans la classification rapide des désémulsifiants utilisés dans les industries pétrolières. Bien que les émulsions eau / pétrole brut aient constitué l'objet principal de ce travail de recherche, cette plateforme de mesures peut être utilisée dans d'autres secteurs tel que l'industrie alimentaire, les cosmétiques et les biotechnologies (membranes de lipides bicouches) ainsi que la réhabilitation de l'environnement suite à des marées noires. La conception compacte du dispositif et le remplacement des mesures mécaniques comme la pression par des mesures de signaux électriques contribuent à une réduction substantielle de la taille de la plate-forme expérimentale, de sorte qu'elle peut être employée pour des mesures sur site dans des zones reculées.
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