Chemistry: physical processes – Physical processes – Crystallization
Patent
1975-07-14
1976-08-03
Wolk, Morris O.
Chemistry: physical processes
Physical processes
Crystallization
73190R, 1951035C, 195127, G01N 2522, G01N 2548, G01N 3114
Patent
active
039726819
ABSTRACT:
A flow-through thermal detector for determining the temperature change resulting from a reaction in a fluid stream includes a pair of parallel fluid paths one of which carries the fluid stream in which the reaction occurs while the other carries a similar fluid without the occurrence of a reaction. The detector includes a temperature sensor for each path. The first of the sensors is mounted to sense the temperature of the reacting stream after said reaction has occurred while the second of the sensors is mounted to sense the temperature of the non-reacting stream at a point in its flow path comparable to that at which the first sensor is mounted. A heat shield is provided surrounding the parallel paths and the heat shield is controllable to a predetermined temperature. Preheating of the streams is carried out by a preheating means positioned within the heat shield to receive the fluid stream entering the shield. The preheating means is controlled to bring the fluid streams of the parallel paths to the same predetermined temperature to which the heat shield is controlled. The streams then enter an equalizing means surrounding that part of the paths between the preheating means and the region in which the reaction occurs for equalizing the temperatures of the streams in the parallel paths prior to the streams reaching the reaction region.
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Clack Peter Joseph
Levin Herman Wesley
Mergner George Clarence
Garris Bradley R.
Leeds & Northrup Company
MacKay Raymond F.
Miller, Jr. William G.
Wolk Morris O.
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