Abstract:
A loading sleeve and method for loading pellets into chemical reactor tubes where the length of the loading sleeve is greater than the clearance above the upper tube sheet. The loading sleeve includes a rigid upper sleeve portion and a rigid lower sleeve portion extending downwardly from the upper sleeve portion and means for holding the upper and lower sleeve portions together in both an aligned position, in which their longitudinal axes are aligned, and in an unaligned position, in which the longitudinal axes are at a substantial angle relative to each other. The method includes bending the loading sleeve at a hinge means, inserting the lower portion of the loading sleeve into the chemical reactor tube, then straightening the loading sleeve and inserting the upper sleeve portion into the chemical reactor tube.
Abstract:
The present invention involves a system and method of making ferric chloride with reduced amounts of hydrochloric acid for water treatment. The method comprises preparing a reactant batch comprising ferric oxide and hydrochloric acid at a predetermined molar ratio. The method further includes mixing the reactant batch with an impeller rotating between about 60 and 150 revolutions per minute. The method further includes maintaining the reactant batch at a temperature between about 70° Fahrenheit and 180° Fahrenheit. The method forms a reaction product including ferric chloride and a reduced amount of hydrochloric acid.
Abstract:
A method for dispensing a volume of fluids from a reservoir, through a fluid outlet in fluid communication with said reservoir, into each well of at least a series of wells, whereby the fluid is dispensed into said series of wells at a continuous uninterrupted flow. A micro titer plate constructed from a hydrophobic and more in particular from a plastic material containing a plurality of series of wells and to an apparatus able to perform the above method.
Abstract:
A controlled-flow microwave instrument is disclosed for chemical synthesis using heterogeneous or highly viscous starting materials. The instrument includes a microwave source for generating electromagnetic radiation in the microwave frequencies, a microwave cavity in wave communication with the source for exposing compositions placed therein to microwave radiation, a microwave-transparent pressure resistant reaction vessel in the cavity, a source reservoir for starting materials and related compositions, a pump in communication with the source reservoir for pumping heterogeneous or highly viscous materials from the source reservoir to the reaction vessel, and a pressure-resistant valve between the pump and the reaction vessel for isolating the reaction vessel from the pump and the source reservoir during application of microwave energy to compositions in the vessel and from any resulting high pressure generated therein.
Abstract:
An apparatus and method for producing fatty acid alkyl esters from fatty acids derived from vegetable oils and animal fats with an alkaline solution dissolved in stoichiometric or near stoichiometric levels of a monoalkyl alcohol to form a mixture. The method further comprises emulsifying the mixture as a means to reach a completed chemical reaction state in a reactor section, wherein the oils or fats are transesterified into fatty acid alkyl esters. The transesterification occurs when the natural boundary surfaces of the immiscible mixture are enlarged by ultrasonic cavitation in the reaction section and the transesterification is performed at, or near atmospheric pressure. The method finally includes, after reaching the chemical reaction state, separating residues from the fatty acid alkyl ester in a gravitational phase separation section.
Abstract:
A method of ex situ fabrication of at least one biochip, the method being of the type consisting in projecting onto a substrate a microvolume of reagent comprising at least one probe diluted in a suitable solvent so as to form, after the solvent has been eliminated, a spot comprising said probe, the method consisting in using a microprojection device comprising at least one tank in which the reagent is stored, and at least one source of gas under pressure put into communication with the tank, and in projecting the microvolume of reagent through an ejection nozzle under drive from the pressure exerted by the gas on the reagent.
Abstract:
The present invention provides apparatus and methods for the synthesis of combinatorial chemical libraries. The apparatus comprises a plurality of reaction vessels having an inner surface, an outer surface, a first opening, and a second opening. An agitator is contained within each of the reaction vessels for stimulating liquid circulation within the vessels. The apparatus has a common gas line having a plurality of gas outlet ports, where each of the reaction vessels has at least one gas outlet port positioned to feed into the vessel. The apparatus also has a common liquid line having a plurality of liquid outlet ports, where each of the reaction vessels has at least one liquid outlet port positioned to feed into the vessel. Each reaction vessel also has at least one valve coupled to the second opening on the vessel.
Abstract:
A laser system utilizing a fluid as the excitatory medium for stimulated light emission, wherein the fluid is supplied from a sorbent-based fluid storage and dispensing system coupled in fluid-supplying relationship with the laser apparatus. The laser may be an excimer laser utilizing as the laser working fluid a rare gas halide compound such as fluorides and/or chlorides of krypton, xenon and argon, as well as fluorine and/or chlorine per se. The laser system may alternatively be a far infrared gas laser utilizing a gas such as CO.sub.2, N.sub.2 O, CD.sub.3 OD, CH.sub.3 OD, CH.sub.3 OH, CH.sub.3 NH.sub.2, C.sub.2 H.sub.2 F.sub.2, HCOOH, CD.sub.3 I, CH.sub.3 F, and C.sup.13 H.sub.3 F. Laser systems of the present invention may be utilized in applications such as materials processing, measurement and inspection, reading, writing, and recording of information, holography, communications, displays, spectroscopy and analytical chemistry, remote sensing, surveying, marking, and alignment, surgical and medical applications, plasma diagnostics, laser weaponry, laser-induced nuclear fusion, isotope enrichment and atomic physics.
Abstract:
The invention provides methods of performing a synthetic process in a liquid distribution system having reaction cells, by pumping at least one reagent into a reaction cell.
Abstract:
An injector for conveying a pulverulent material is supplied with entraining air via a line and with dosing air via another line. Dosing air and entraining air are kept constant in their total rate of flow by a flow controller. This yields a particularly homogeneous powder/air mixture, which is particularly advantageous in the conveying of coating powder for coating welded seams on can bodies.