Fluid mixture testing cell suited for detecting phase changes
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United States of America Patent
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Jun 23, 1998
Grant Date -
N/A
app pub date -
Aug 12, 1996
filing date -
Aug 11, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A mixture containing substances likely to settle or to flocculate is fed into a chamber (1a) of a body (1) delimited by a mobile piston (18) and a closed-circuit circulation of the mixture is established by means of a homogenization turbine (8) driven by a motor (28) associated with magnetic driving means (9, 26). According to the pressure and to the temperature, variations in the conductance of the mixture flowing between two electrodes (1, 16) connected to a measuring device (17) are measured on the one hand and variations in the driving torque applied to turbine (8) under the effect of the concomitant variations in the apparent viscosity of the mixture are measured on the other hand. The cell can be used to study of the conditions of formation of asphaltene deposits or flocculations in petroleum crudes for example.
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