초록 ▼

A reaction block assembly of reaction vessels for conducting chemical reactions under pressure. The assembly includes a heat conductive reactive block having reaction vessel receiving openings formed in the block. A heat exchanger is mounted in heat transfer engagement with some of the exterior wall

A reaction block assembly of reaction vessels for conducting chemical reactions under pressure. The assembly includes a heat conductive reactive block having reaction vessel receiving openings formed in the block. A heat exchanger is mounted in heat transfer engagement with some of the exterior walls of the reaction block. The heat exchangers can operate in different modes, to provide a heat differential across the reaction block. A reaction vessel is positioned in each reaction vessel receiving opening in the block. A cap is attached to each reaction vessel and a cannula opening is formed in each cap. A cannula passage is connected at one end to a cannula opening in each cap and it has a septum at the other end. A valve controls each cannula passage. An operating mechanism is provided for opening and closing each cannula passage controlling valve. The reaction block assembly may be used to determine when the reaction of a solution in a reaction vessel is completed. This is accomplished by using a calibration curve comparing the frequency of rotation of the stirring bar with the viscosity of the reaction solution in which the frequency is inversely proportional to the viscosity. The time interval at which the stir bar decouples from rotation with the driving magnet is determined. This time interval of decoupling is compared with the calibration table to determine the viscosity of the solution at the time the reaction was completed which takes place at the time the stir bar was decoupled.

대표청구항 ▼

[ I claim:] [7.] A reaction block assembly for pressurized chemical reactions in a reaction vessel, including:a heat conductive reaction block having at least one reaction vessel receiving opening formed therein,a reaction vessel positioned in said reaction vessel receiving opening,said reaction ves

[ I claim:] [7.] A reaction block assembly for pressurized chemical reactions in a reaction vessel, including:a heat conductive reaction block having at least one reaction vessel receiving opening formed therein,a reaction vessel positioned in said reaction vessel receiving opening,said reaction vessel having an open end surrounded by a flange,a capture plate supported on said reaction block,an opening formed in said capture plate to receive said reaction vessel when said reaction vessel is positioned in said reaction vessel receiving opening of said reaction block,a cap closing said reaction vessel,said cap having an outwardly projecting ledge,an upper plate supported on said capture plate,an opening formed in said upper plate to receive said cap and a shoulder formed in said upper plate to capture said cap ledge,an aligned pair of grooves formed in said upper plate and extending radially outwardly from said opening in said upper plate, andradially extending pins projecting from said shoulder and adapted to be received in said grooves to orient said cap rotationally relative to said reaction block assembly.