摘要:
Disclosed is a process for separating sulfone from a hydrocarbon stream containing a small concentration sulfone by using water as an extraction solvent. The extraction solvent, laden with the removed sulfone, is further processed to separate the extraction solvent and water to thereby produce a sulfone product suitable for reused in an alkylation process or for sale as a dry sulfone end-product.
摘要:
A holding fixture for a wheel and tire assembly enabling a single person to perform an operation on the tire such as grooving or the like. The fixture comprises a first U-shaped bracket having a base for mounting on a wall or other vertical surface and legs extending perpendicularly from the vertical surface. A second similar U-shaped bracket has a vertical base and horizontal legs adjustably bolted to the legs of the first bracket. The vertical base of the second bracket supports a horizontally extending support tube. A rotatable tube segment has a wheel mounting plate for a wheel and tire assembly affixed to one of its ends and a slotted positioning ring affixed to its other end. The tube segment and its slotted ring and mounting plate are captively and rotatively mounted on the support tube so that a tire and wheel assembly affixed to the mounting plate is rotatable about the support tube. A lock assembly is affixed to the support tube and the base of the second bracket. The lock assembly is releasably engageable in any one of the slots of the slotted positioning ring to hold a tire and wheel assembly mounted on the mounting plate in any one of a number of predetermined rotative positions about the support tube.
摘要:
Disclosed is an alkylation process which utilizes a mixture of sulfone and hydrogen fluoride as an alkylation catalyst. The process provides for the removal of light ASO from the alkylation catalyst that accumulates therein as a result of the inability to remove the light ASO produced as a by-product of the alkylation reaction.
摘要:
Disclosed is an alkylation process which utilizes a mixture of sulfone and hydrogen fluoride as an alkylation catalyst. The process provides for the removal of ASO and water from the alkylation catalyst that accumulates therein while minimizing the loss of sulfone and HF with the ASO and water removed.
摘要:
Novel permanent magnets of Sm.sub.2 Co.sub.17 type crystal structure are provided herein. The magnets preferably have samarium, cobalt, iron, copper and zirconium in specified amounts. They have superior magnetic properties, including maximum energy product, intrinsic coercivity and second quadrant loop squareness. The compositions of the magnets can be expressed by a general formula [Co.sub.a Fe.sub.b Cu.sub.c Zr.sub.d ].sub.e Sm. Preferred embodiments, wherein a is about 0.6 to about 0.7, b is about 0.2 to about 0.3, c is about 0.06 to about 0.07, d is about 0.02 to about 0.03, and e is about 7.2 to about 7.4, have unexpectedly high maximum energy product, high intrinsic coercive force and squareness. Processes for producing the improved alloy are also provided.
摘要翻译:本文提供了Sm2Co17型晶体结构的新型永磁体。 磁体优选具有规定量的钐,钴,铁,铜和锆。 它们具有优异的磁性能,包括最大能量乘积,固有矫顽力和第二象限环矩形度。 磁体的组成可以由通式[Coa Feb Cuc Zrd] e Sm表示。 优选的实施方案,其中a为约0.6至约0.7,b为约0.2至约0.3,c为约0.06至约0.07,d为约0.02至约0.03,e为约7.2至约7.4,具有出乎意料的高的最大能量 产品,高内在矫顽力和矩形度。 还提供了用于生产改进的合金的方法。
摘要:
A wafer chuck having a substantially hollow cavity therein utilizes the latent vaporization of a liquid to extract heat from the wafer. An insulated heater provides for heating the wafer to its desired operating point as rapidly as possible in order to bring the wafer to its operating point before plasma etching or deposition occurs.
摘要:
A fluxmeter which provides for a pneumatic apparatus for measuring an amount of plasma energy flux flowing into a semiconductor wafer provides for a non-electrical apparatus of measuring energy flux. A bulb has one end exposed to the plasma while the opposite end is supported by a heat sink. When plasma is applied, gas pressure in the bulb changes due to a change in temperature. This change in gas pressure is measured to provide a direct correlation to a value of energy flux impinging on the fluxmeter.
摘要:
A process for producing a dehydrogenated hydrocarbon product stream by catalytically dehydrogenating a feed stream is disclosed. The process utilizes a plurality of dehydrogenation catalyst-filled tubes in a furnace with all of the tubes connected in parallel to a common product outlet conduit, so that the effluent of all of the tubes is contained in a common product stream. Essentially continuous regeneration of the dehydrogenation catalyst, is achieved by cyclically contacting a portion of the catalyst with an admixture of oxygen-containing regeneration gas and diluent while contacting the remaining portion of the catalyst with an admixture of hydrocarbon feed material and diluent, and wherein free hydrogen is added to react with the oxygen-containing regeneration effluent gas before the oxygen-containing effluent gas enters the product stream.
摘要:
Systems and methods are described for passive pavement-mounted acoustical alert of the occupants of a vehicle. A method of notifying a vehicle occupant includes providing a driving medium upon which a vehicle is to be driven; and texturing a portion of the driving medium such that the textured portion interacts with the vehicle to produce audible signals, the textured portion pattern such that a linguistic message is encoded into the audible signals. The systems and methods provide advantages because information can be conveyed to the occupants of the vehicle based on the location of the vehicle relative to the textured surface.
摘要:
A new Leaf Skimmer System for collecting debris and excluding debris from entering a conventional pool skimmer system thereby reducing the amount of manual removal of the debris from the pool skimmer system. The inventive device includes a rectangular frame, a reticulated netting enclosing the frame, a plurality of doors pivotally secured to the frame, a pair of support arms including a suction cup engaging a side wall of a pool, and a elongated hook member for engaging a pool skimmer. The netting collects and retains debris, such as leaves, before entering the pool skimmer. The netting includes a water passage corresponding to the pool skimmer for allowing smaller debris into the pool skimmer.