摘要:
A heat-insulating transparent PVC sheet is formed from a PVC substrate having a thickness of 0.02-2.0 mm and contains heat-insulation pastes evenly distributed over the PVC substrate, since the heat-insulation paste contains an essential component of wolfram cesium powder (WCs) with a chemical formula of CsXNYWO3-ZClC and having a particle size of 0.005-2 μm, the heat-insulating transparent PVC sheet has an excellent weatherability, and particularly before and after tested in 300-hour service life in line with ASTM G-154 specification, has a physical property of weatherability decay rate (%) small than 4%.
摘要:
A method for converting depleted uranium tetrafluoride (UF4) to triuranium octaoxide (U3O8), and producing sulfur tetrafluoride, using a two step process. The first step uses heat and a mixture of the uranium tetrafluoride and an alkaline compound, either an alkaline oxide or an alkaline hydroxide, to produce U3O8 and a water-soluble metal halide. The second step uses heat, sulfur and a halogen to produce sulfur tetrafluoride and triuranium octaoxide.
摘要翻译:使用两步法将贫铀四氟化铀(UF4)转化为三氧化铀(U3O8)并生产四氟化硫的方法。 第一步使用热和四氟化铀与碱性化合物(碱性氧化物或碱性氢氧化物)的混合物来制备U 3 O 8和水溶性金属卤化物。 第二步使用热,硫和卤素来产生四氟化硫和三氧化铀八氧化物。
摘要:
Several crystals have been identified which can be grown using standard single crystals growth techniques and which have a high birefringence. The identified crystals include Li.sub.2 CO.sub.3, LiNaCO.sub.3, LiKCO.sub.3, LiRbCO.sub.3 and LiCsCO.sub.3. The condition of high birefringence leads to their application as optical polarizer materials. In one embodiment of the invention, the crystal has the chemical formula LiK.sub.(1-w-x-y) Na.sub.(1-w-x-z) Rb.sub.(1-w-y-z) Cs.sub.(1-x-y-z) CO.sub.3, where w+x+y+z=1. In another embodiment, the crystalline material may be selected from a an alkali metal carbonate and a double salt of alkali metal carbonates, where the polarizer has a Wollaston configuration, a Glan-Thompson configuration or a Glan-Taylor configuration. A method of making an LiNaCO.sub.3 optical polarizer is described. A similar method is shown for making an LiKCO.sub.3 optical polarizer.
摘要翻译:已经鉴定了几种可以使用标准单晶生长技术生长并具有高双折射的晶体。 鉴定的晶体包括Li2CO3,LiNaCO3,LiKCO3,LiRbCO3和LiCCO3。 高双折射的条件导致其作为光学偏振器材料的应用。 在本发明的一个实施方案中,晶体具有化学式LiK(1-w-x-y)Na(1-w-x-z)Rb(1-w-y-z)Cs(1-x-y-z)CO 3,其中w + x + y + z = 1。 在另一个实施方案中,结晶材料可以选自碱金属碳酸盐和碱金属碳酸盐的双重盐,其中偏振器具有Wollaston构型,Glan-Thompson构型或Glan-Taylor构型。 描述制备LiNaCO 3光学偏振器的方法。 示出了制造LiKCO 3光学偏振器的类似方法。
摘要:
Macroporous cation exchange resins with sulfonic acid functional groups having polymeric hydrous zirconium oxide and polyacrylic acid contained therein are useful in substantially removing sulfate, borate, bicarbonate and/or phosphate ions from alkali metal salt solutions.
摘要:
A method for producing ethylene oxide comprising: a) providing one or more feed components, wherein the one or more feed components contains at least ethylene obtained by dehydrating ethanol; b) contacting the one or more feed components with an ethylene oxide catalyst bed disposed in a reactor tube, the ethylene oxide catalyst bed comprising: (1) an upstream ethylene oxide catalyst having a first cesium concentration and (2) a downstream ethylene oxide catalyst having a second cesium concentration, wherein the first cesium concentration is higher than the second cesium concentration.
摘要:
A method for producing ethylene oxide comprising: a) providing one or more feed components, wherein the one or more feed components contains at least ethylene obtained by dehydrating ethanol; b) contacting the one or more feed components with an ethylene oxide catalyst bed disposed in a reactor tube, the ethylene oxide catalyst bed comprising: (1) an upstream ethylene oxide catalyst having a first cesium concentration and (2) a downstream ethylene oxide catalyst having a second cesium concentration, wherein the first cesium concentration is higher than the second cesium concentration.
摘要:
A transparent polyester film has low visible light transmittance of 5-50% by JIS K7705 testing standard and a high infrared-blocking rate of at least 90% by JIS R3106 testing standard, which is extruded from a kind of polyester resins obtained from 5-40 wt % of nanoparticle-based thermal insulation slurry and/or 0.005-0.1 wt % of nanoparticle-based black pigment slurry by weight of and to react with the polymerization materials to completely perform an esterification and a polycondensation, wherein the thermal insulation nanoparticle has a chemical formula of CsXNYWO3-ZClC with an average particle size of 10-90 nm and the nanoparticle-based black contains carbon black particles having a particle size of 20-80 nm.
摘要:
The present disclosure is directed to a group of newly discovered intrinsic scintillation compounds. As intrinsic scintillators, these compounds do not require an external activator as a dopant. The new scintillators may include members of two elpasolite families with the general exemplary formulas of A2BMX(6-y)X′y and A3MX(6-y)X′y, (0
摘要:
A method for converting thermal energy to chemical energy by reducing a reactive oxide substrate at a constant temperature under a first atmosphere with a lower oxygen partial pressure, and then contacting the reduced oxide at the same temperature with a second atmosphere with a higher oxygen partial pressure, during which oxygen is driven into the reduced oxide by the oxygen chemical potential difference between the two atmospheres, thereby leaving fuel behind, i.e. producing fuel. A method for preparing the reactive oxide substrate by using liquid media as a binder and pore former and heating the mixture of the reactive oxide and the liquid media, thereby forming the reactive oxide substrate.