摘要:
Economical and environment-friendly processes for the synthesis of anionic clays and anionic clay-like materials with acetate anions as the charge-balancing interlayer species are disclosed. The processes involve combining a slurry of a gibbsite or its thermally treated form with a slurry or solution of a magnesium source and magnesium acetate. The product is not washed, needs no filtration and exists in a close-to-neutral pH condition. The product can be spray dried directly to form microspheres, or it can be extruded to form shaped bodies. Because of the absence of foreign salts, the product can be combined with other ingredients in the manufacture of catalysts, absorbents, pharmaceuticals, cosmetics, detergents and other commodity products that contain anionic clays.
摘要:
There is described an infra-red radiation source comprising an electrically conductive element (2) formed of a plurality of carbon fibres and connection means (3, 4, 5) for connecting the electrically conductive element (2) across an electrical power supply, said connection means (3, 4, 5) including at least one support member (3) formed of carbon and secured to one end of the electrically conductive element (2).
摘要:
A process for the production of an adsorbent suitable for use in the purification of edible oils such as soya oil comprising treating a layered clay mineral with a solution of a pillaring material such as a suitable aluminum cation so as to cause the adsorption of at least some of the pillaring material into the clay mineral and removing solvent to deposit pillaring material within the clay mineral, the process being characterized by the removal of at least some structural aluminum from the clay mineral by an acid treatment prior to contact with the pillaring material. The resulting pillared material, which can have a higher SiO.sub.2 :Al.sub.2 O.sub.3 ratio than normal as a result of the initial acid treatment can give chlorophyll adsorption capacity above 70% and even, in some instances, up to about 99%.
摘要:
A process for the preparation of a glycol ether by reacting an olefin oxide with an excess of an alcohol over a catalyst; characterized in that the catalyst comprises a material which has been prepared by calcination of an anionic double hydroxide clay having a structure comprising magnesium and aluminum in combination, followed by rehydration and subsequent recalcination.
摘要:
A method and apparatus of filing beverage combines pressurized beverage delivery (rather than gravity feed) with variable pressure control of the gas flow from the can during snift. By modulating beverage flow and especially pressure, it is possible to saturate a beverage, or optionally fill a can's widget with gas with a shorter set of fill steps. In addition, the speed of beverage filling can be dramatically increased compared to small scale systems normally used. Unlike known large scale pressure systems, the beverage bowl may be located beneath the rest of the apparatus and modulated pressure may be used, making for a smaller and more portable unit.
摘要:
The electronically regulated temperature compression device is a brace that applies pressure to an appendage. The electronically regulated temperature compression device applies heat therapy and cooling therapy to the appendage. The temperature of the selected therapy is electronically regulated and controlled. The electronically regulated temperature compression device uses a refrigerant-based heat exchange mechanism during the therapy process. The electronically regulated temperature compression device comprises a composite textile, plurality of fasteners, and a controller. The plurality of fasteners attaches the composite textile to the appendage of the patient. The plurality of fasteners controls the pressure applied by the composite textile to the appendage. The composite textile is a temperature controlled textile used to generate a heat exchange between the electronically regulated temperature compression device and the appendage. The controller manages the temperature and flow of the refrigerant during the therapy process.
摘要:
Signals are routed to and from identical stacked integrated circuit dies by selectively coupling first and second bonding pads on each of the dies to respective circuits fabricated on the dies through respective transistors. The transistors connected to the first bonding pads of an upper die are made conductive while the transistors connected to the second bonding pads of the upper die are made non-conductive. The transistors connected to the second bonding pads of a lower die are made conductive while the transistors connected to the first bonding pads of the lower die are made non-conductive. The second bonding pads of the upper die are connected to the second bonding pads of the lower die through wafer interconnects extending through the upper die. Signals are routed to and from the circuits on the first and second dies through the first and second bonding pads, respectively.
摘要:
Novel compositions of matter comprising a cationic layered material and a second compound. The second compound has a reflection in its XRD pattern at 18.5 degrees two-theta, and s second reflection at 29 degrees two-theta. The composition of matter may be used in hydrocarbon conversion, purification, and synthesis processes, such as fluid catalytic cracking and hydroprocessing. The materials are especially suitable for the reduction of SOx and NOx emissions and the reduction of the sulfur and nitrogen content in fuels like gasoline and diesel.