专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06649661B2 Dispersions of alumina hydrate 失效
标题翻译：水合氧化铝的分散体
公开(公告)号：US06649661B2
公开(公告)日：2003-11-18
申请号：US09006478
申请日：1998-01-13
申请人： Hitoshi Yoshino , Kyo Miura , Yuji Kondo
发明人： Hitoshi Yoshino , Kyo Miura , Yuji Kondo
IPC分类号： C01F700
CPC分类号： B41M5/5218 , B41M5/52 , B82Y30/00 , C01F7/02 , C01F7/026 , C01P2002/02 , C01P2002/72 , C01P2004/03 , C01P2004/04 , C01P2004/20 , C01P2004/54 , C01P2004/64 , C01P2006/12 , C01P2006/14 , C01P2006/16 , C01P2006/17 , C01P2006/22 , C01P2006/80 , C01P2006/90 , C09D17/004 , D21H17/675 , D21H21/52 , Y10T428/24901 , Y10T428/249953 , Y10T428/25 , Y10T428/256 , Y10T428/257 , Y10T428/273 , Y10T428/277 , Y10T428/31993
摘要： A dispersion of alumina hydrate comprises an alumina hydrate containing 0.1 to 1.0% by weight of a nitrate anion and having an average pore radius of 20 to 200 Å and a half breadth of pore radius distribution of 20 to 150 Å and deionized water. Another dispersion of alumina hydrate comprises an alumina hydrate containing 0.1 to 1.0% by weight of a nitrate anion and having at least two peaks in pore radius distribution and deionized water. Another dispersion of alumina hydrate comprises a titanium dioxide-containing alumina hydrate containing 0.1 to 1.0% by weight of a nitrate anion and deionized water. In each of these dispersions, when the alumina hydrate is dispersed in water at a solids concentration of 15% by weight to form a dispersion, the viscosity of the dispersion is not higher than 75 cP as measured at 20° C. and the dispersion has a shear rate of 7.9 sec−1.
摘要翻译：氧化铝水合物的分散体包含含有0.1至1.0重量％的硝酸根阴离子并且具有20至200的平均孔半径和20至150的孔半径分布的半宽度和去离子水的氧化铝水合物。氧化铝水合物的另一分散体包含含有0.1至1.0重量％的硝酸根阴离子并且具有至少两个孔半径分布峰和去离子水的氧化铝水合物。氧化铝水合物的另一分散体包含含有0.1至1.0重量％的硝酸根阴离子和去离子水的含二氧化钛的氧化铝水合物。在这些分散体中的每一种中，当氧化铝水合物以15重量％的固体浓度分散在水中以形成分散体时，分散体的粘度在20℃下测得不高于75cP，分散体剪切速率为7.9秒-1。

2. 发明授权

US06524549B1 Method for producing &agr;-alumina powder 失效
标题翻译：生产α-氧化铝粉末的方法
公开(公告)号：US06524549B1
公开(公告)日：2003-02-25
申请号：US08730217
申请日：1996-10-15
申请人： Masahide Mohri , Norio Matsuda , Shinichiro Tanaka , Yoshio Uchida , Yoshinari Sawabe , Hisashi Watanabe , Hiroshi Ogawa
发明人： Masahide Mohri , Norio Matsuda , Shinichiro Tanaka , Yoshio Uchida , Yoshinari Sawabe , Hisashi Watanabe , Hiroshi Ogawa
IPC分类号： C01F700
CPC分类号： C01F7/30 , C01F7/02 , C01F7/442 , C01P2004/03 , C01P2004/30 , C01P2004/50 , C01P2004/52 , C01P2004/54 , C01P2004/61 , C01P2004/62 , C01P2006/11 , C01P2006/21 , C01P2006/80
摘要： Alpha alumina powder having a regulated particle size, a uniform particle shape and a narrow particle size distribution and further a low halogen content is produced by calcining at least one starting material selected from transition alumina and alumina compounds in a halogen-containing atmosphere which comprises a hydrogen halide gas, a halogen gas or a mixture of a halogen gas and steam and contains at least 0.1% by volume of at least one halogen-containing gas selected from the group consisting of hydrogen halide gas and halogen gas, and removing halogen from a calcined material. The produced alpha-alumina powder is excellent in a packing property and homogeneously packed.
摘要翻译：通过在含卤素气氛中煅烧选自过渡氧化铝和氧化铝化合物的至少一种起始材料，制备具有调节粒径，均匀粒子形状和窄粒度分布以及进一步低卤素含量的α-氧化铝粉末，其包含卤化物气体，卤素气体或卤素气体和蒸汽的混合物，并且含有至少0.1体积％的选自卤化氢气体和卤素气体的至少一种含卤素气体，以及从煅烧材料。生产的α-氧化铝粉末具有优异的包装性能并且均匀包装。

3. 发明授权

US06447738B1 Coproducing alumina, iron oxide, and titanium-dioxide from aluminum ore bodies and feedstocks 失效
标题翻译：从铝矿体和原料生产氧化铝，氧化铁和二氧化钛
公开(公告)号：US06447738B1
公开(公告)日：2002-09-10
申请号：US09648300
申请日：2000-08-24
申请人： John S. Rendall , Massoud Ahghar , Jerry V. Fox , Fred A. Aiken
发明人： John S. Rendall , Massoud Ahghar , Jerry V. Fox , Fred A. Aiken
IPC分类号： C01F700
CPC分类号： C22B34/125 , C01D5/00 , C01F7/26 , C01G23/053 , C01G23/0532 , C01G49/06 , C22B3/08 , C22B21/0015 , Y02P10/234
摘要： A process for the extraction of alumina, iron oxide and titanium dioxide from bauxite ore and clays, and other ore bodies and feedstocks. The process starts by sulfuric acid leaching of the feedstocks in pressure autoclaves at about 200° C. and appropriate pressure. A leach liquor of sulfate salts of aluminum, iron and titanium is obtained. Any iron values are converted to a ferrous state. A recycled potassium sulfate helps produce double aluminum alkali sulfate crystals in the reduced leach liquor. The crystals are removed at about 20°-60° C. with the help of SO2 gases that reduce the ferric. Such double salt is hydrolyzed into a basic aluminum alkali precipitated sulfate salt. This is then dried and calcined at about 950° C. Any alkali sulfate is washed out and recycled. The remainder is alumina. The ferrous sulfate is crystallized out at about 10° C. It is dried and calcined at about 450° C. to produce an iron oxide mixed with other sulfate salts that can be washed out and recycled.
摘要翻译：从铝土矿和粘土以及其他矿体和原料中提取氧化铝，氧化铁和二氧化钛的方法。该过程开始于在约200℃的压力高压釜中的原料硫酸浸出和适当的压力。得到铝，铁和钛的硫酸盐的浸出液。任何铁价值都转为有色金属。回收的硫酸钾有助于在还原的浸出液中产生双重碱式硫酸铝晶体。借助SO2气体，在约20°-60°C下除去晶体，减少三价铁。这种双盐水解成碱式铝碱析出的硫酸盐。然后将其干燥并在约950℃下煅烧。任何碱性硫酸盐被洗涤并再循环。剩余部分是氧化铝。硫酸亚铁在约10℃下结晶出来。将其干燥并在约450℃下煅烧以产生与其它硫酸盐混合的氧化铁，其可被洗涤和回收。

4. 发明授权

US06818192B2 12CaO • 7Al2O3 compound clathrating active oxygen species and method for preparing the same 有权
标题翻译： 12CaO。 7Al2O3化合物包合活性氧及其制备方法
公开(公告)号：US06818192B2
公开(公告)日：2004-11-16
申请号：US09926765
申请日：2002-02-14
申请人： Hideo Hosono , Masahiro Hirano , Katsuro Hayashi
发明人： Hideo Hosono , Masahiro Hirano , Katsuro Hayashi
IPC分类号： C01F700
CPC分类号： H01M4/9025 , A01N59/06 , C01F7/164 , C01P2002/80 , C01P2002/82 , C01P2002/90 , H01B1/08 , H01M4/9016 , H01M2008/1293
摘要： The present invention provides a 12CaO.7Al2O3 compound containing an O2− ion radical and/or an O− ion radical in a high concentration of 1020 cm−3 or more. This compound can be used as an oxidization catalyst, antibacterial agent, ion conductor, or electrode material for solid-oxide fuel cells.
摘要翻译：本发明提供了含有高浓度为10cm -3以上的O 2 - 离子基团和/或O - 离子基团的12CaO·7H 2 O 3化合物。该化合物可以用作固体氧化物燃料电池的氧化催化剂，抗菌剂，离子导体或电极材料。

5. 发明授权

US06814947B1 Method for producing calcium compounds containing water of crystallization 失效
标题翻译：含有结晶水的钙化合物的制备方法
公开(公告)号：US06814947B1
公开(公告)日：2004-11-09
申请号：US09831451
申请日：2001-11-29
申请人： Josef Lehmkuhl , Ansgar Fendel , Hubert Bings
发明人： Josef Lehmkuhl , Ansgar Fendel , Hubert Bings
IPC分类号： C01F700
CPC分类号： C09K21/02 , C01F7/004 , D21H17/675 , D21H19/385
摘要： The invention relates to the production of calcium compounds containing water of crystallization by means of a chemical reaction between an aqueous alkaline sodium aluminate solution and solid or dissolved or suspended calcium (hydr)-oxide in the presence of carbon dioxide or carbonate; and to the use of these compounds. The resulting precipitate is separated by sedimentation, dehydration, drying and/or clacination and/or grinding or suspending the resulting filter cake and reacted with at least one mineral acid and/or at least one salt of the same. The resulting precipitate, which contains water of crystallization, is separated by sedimentation, dehydration, drying and/or grinding. The resulting compounds can be used as fillers or as extra white pigments for producing and surface-treating paper, cardboard or card, for producing paints and lacquers, as a flame-retardant filler for fire-protecting construction materials and as a filler for producing plasterboards or building slabs or as a hydraulically active additive for producing expansive cements, expansive plasters and screeds and as a swelling component for explosion-protected explosives.
摘要翻译：本发明涉及通过碱性铝酸钠水溶液与固体或溶解或悬浮的二（二氧化碳）氧化物在二氧化碳或碳酸盐存在下的化学反应来生产含水结晶的钙化合物; 以及这些化合物的使用。所得沉淀物通过沉淀，脱水，干燥和/或剥离和/或研磨或悬浮所得滤饼并与至少一种无机酸和/或其至少一种盐反应而分离。含有结晶水的所得沉淀物通过沉降，脱水，干燥和/或研磨分离。所得化合物可用作填料或作为额外的白色颜料用于生产和表面处理纸，纸板或卡片，用于生产油漆和漆，作为防火建筑材料的阻燃填料，以及用于生产石膏板或建筑板材的填料或作为生产膨胀水泥，膨胀灰泥和砂浆的水硬性添加剂，以及用于防爆材料的膨胀组分炸药

6. 发明授权

US06576204B2 Process for the production of alumina 有权
标题翻译：氧化铝生产工艺
公开(公告)号：US06576204B2
公开(公告)日：2003-06-10
申请号：US09773561
申请日：2001-02-02
申请人： Keld Johansen
发明人： Keld Johansen
IPC分类号： C01F700
CPC分类号： C01F7/24 , C01F7/308
摘要： A process for the production of alumina is performed by dissolving gibbsite Al2O3.3H2O in nitric acid to provide an acid solution containing aluminum nitrate; decomposing the acid solution at 300-700° C. with a free air supply to form alumina and Nox by spraying onto the inner surface of one or more rotary kilns, drying in a fluid bed, or drying in a steel belt conveyor furnace; regenerating the formed NOx into concentrated nitric acid and recycling the nitric acid to be used for the dissolving of gibbsite; and recovering the alumina formed upon decomposing the acid solution.
摘要翻译：氧化铝的制造方法是将三水铝矿Al 2 O 3·3H 2 O溶解在硝酸中，得到含有硝酸铝的酸溶液; 用自由空气供应在300-700℃下分解酸溶液，通过喷洒到一个或多个旋转窑的内表面上，在流化床中干燥或在钢带输送机炉中干燥来形成氧化铝和Nox; 将形成的NOx再生成浓硝酸并再循环用于三水铝矿溶解的硝酸; 并回收在分解酸溶液时形成的氧化铝。

7. 发明授权

US06528028B2 Process for treating bauxite in which a desilication product and an insoluble residure are separately precipitated 有权
标题翻译：处理其中分离沉淀出脱硅产物和不溶性残留物的铝土矿的方法
公开(公告)号：US06528028B2
公开(公告)日：2003-03-04
申请号：US09749632
申请日：2000-12-28
申请人： Yoshiyuki Takenaka , Yasuo Kawai , Isao Ishikawa
发明人： Yoshiyuki Takenaka , Yasuo Kawai , Isao Ishikawa
IPC分类号： C01F700
CPC分类号： C01F7/062 , C01F7/46
摘要： A process in which alumina is extracted from bauxite with an aqueous alkali solution, and a desilication product is precipitated such that the product is not contained in a bauxite residue and does not form a complex. The desilication product is mixed with a calcium compound, and the mixture is calcined, to thereby solubilize and recover an alkali component of the product. In addition, an alkali component is removed from a residue (a solid product), and the residue is effectively used as a resource.
摘要翻译：使用碱水溶液从铝土矿中提取氧化铝的方法，并使脱硅产物沉淀，使得产物不包含在铝土矿残渣中并且不形成络合物。将脱硅产物与钙化合物混合，并将混合物煅烧，从而溶解并回收产物的碱组分。此外，从残渣（固体产物）中除去碱成分，残留物被有效地用作资源。

8. 发明授权

US06689333B1 Process for the preparation of quasi-crystalline boehmites from inexpensive precursors 有权
标题翻译：用于从廉价前驱物制备准晶体波音的方法
公开(公告)号：US06689333B1
公开(公告)日：2004-02-10
申请号：US09636692
申请日：2000-08-11
申请人： Dennis Stamires , Paul O'Connor , Gregory Pearson , William Jones
发明人： Dennis Stamires , Paul O'Connor , Gregory Pearson , William Jones
IPC分类号： C01F700
CPC分类号： C01F7/448 , B01J21/04 , B01J23/10 , B01J37/10 , C01F7/34 , C01P2002/04 , C01P2002/74
摘要： The present invention pertains to cheaper process for the preparation of quasi-crystalline boehmite containing additive in a homogeneously dispersed state. In this cheaper process an inexpensive quasi-crystalline boehmite precursor is and additive are combined and aged to form a quasi-crystalline boehmite containing additive in a homogeneously dispersed state. Suitable inexpensive quasi-crystalline boehmite precursors are aluminum trihydrate and thermally treated forms thereof and inorganic aluminum salts. Suitable additives are compounds containing elements selected from the group of rare earth metals alkaline earth metals, transition metals, actinides, silicon, gallium, boron, and phosphorus.
摘要翻译：本发明涉及制备具有均匀分散状态的含准结晶勃姆石的添加剂的较便宜的方法。在这种更便宜的方法中，廉价的准晶体勃姆石前体和添加剂结合并老化以形成均匀分散状态的含有添加剂的准晶体勃姆石。合适的廉价准晶体勃姆石前体是三水合铝和其热处理形式和无机铝盐。合适的添加剂是含有选自稀土金属碱土金属，过渡金属，锕系元素，硅，镓，硼和磷的元素的化合物。

9. 发明授权

US06555076B1 Bauxite ore digestion in the bayer process 有权
标题翻译：铝土矿矿石在拜耳过程中消化
公开(公告)号：US06555076B1
公开(公告)日：2003-04-29
申请号：US09601854
申请日：2000-09-22
申请人： Bernard Droy , Dany Michaux
发明人： Bernard Droy , Dany Michaux
IPC分类号： C01F700
CPC分类号： C01F7/062
摘要： The process according to the invention to raise simultaneously to an optimum level the temperature and concentration of an aqueous medium intended for use in bauxite ore digestion in an alumina production plant according to the Bayer process, which includes successive phases (a) to (f) in which: a) the aqueous medium coming from digestion containing pregnant liquor is cooled and evaporated in a multiple staged flash evaporation zone; b) the sterile residue is separated, the aluminium trihydroxide is precipitated and the aqueous medium, consisting of spent liquor, intended for use in digestion is recovered; c) if need be, the required quantity of water, additional to that already evaporated in phase (a) is eliminated by evaporation in a specific evaporation section; d) the aqueous medium intended for use in digestion is heated in several stages; e) the flash vapour generated in each of the stages of the evaporation phase (a) is used in each of the stages of the heating phase (d); f) the aqueous medium intended for use in digestion coming from the heating phase (d) is heated by live steam. is characterised in that, in addition to all these phases, a simultaneous heating and evaporation phase is carried out on the aqueous medium intended for use in digestion.
摘要翻译：根据本发明的方法同时提高根据拜耳方法在氧化铝生产设备中用于铝土矿矿石消解的水性介质的温度和浓度的最佳水平，其包括连续阶段（a）至（f）其中：a）来自含有怀疑液体的消化的水性介质被冷却并在多级闪蒸蒸发区中蒸发; b）分离无菌残余物，沉淀出三氢氧化铝，并将由废液组成的含水介质回收用于消化的用途; c）如果需要，在特定蒸发段中通过蒸发消除在相（a）中已蒸发的所需量的水，d）用于消化的水性介质为在几个阶段加热; e）在加热阶段（d）的每个阶段中使用在蒸发阶段（a）的每个阶段中产生的闪蒸蒸气; f）水中我们用于来自加热阶段（d）的消化的培养基通过活蒸汽加热。其特征在于，除了所有这些相之外，在用于以下的水性介质中进行同时加热和蒸发阶段消化。

10. 发明授权

US06440886B1 Zeolite beta and its use in aromatic alkylation 失效
标题翻译：沸石β及其在芳族烷基化中的应用
公开(公告)号：US06440886B1
公开(公告)日：2002-08-27
申请号：US09705615
申请日：2000-11-03
申请人： Gregory J. Gajda , Richard T. Gajek
发明人： Gregory J. Gajda , Richard T. Gajek
IPC分类号： C01F700
CPC分类号： B01J29/7007 , B01J29/7415 , B01J2229/26 , B01J2229/42 , C07C2/66 , C07C6/126 , C07C2529/70 , Y02P20/52 , Y10S423/27 , C07C15/085
摘要： There is disclosed a new form of zeolite beta which shows substantially greater stability and greater catalyst lifetime when used in the alkylation and transalkylation of aromatic compounds. The new, surface-modified zeolite beta is characterized by having surface aluminum 2p binding energies, as measured by X-ray photoelectron spectroscopy, of at least 74.8 electron volts. This surface-modified zeolite beta is prepared by treating an as synthesized and templated zeolite beta with an acid at a pH between about 0 and about 2 at a temperature up to about 125° C. for a time sufficient to modify the chemical environment of the surface aluminum atom without bringing about dealumination of the zeolite beta, then calcining the acid-treated templated material at 550-700° C. to remove the template.
摘要翻译：公开了一种新型沸石β，当用于芳族化合物的烷基化和烷基转移时，其表现出显着更大的稳定性和更大的催化剂寿命。新的表面改性沸石β的特征在于具有至少74.8电子伏特的通过X射线光电子能谱测量的表面铝2p结合能。该表面改性沸石β通过在约至约125℃的温度下用pH在约0和约2之间的酸处理合成的和模板化的沸石β来制备，时间足以改变化合物的化学环境表面铝原子，而不会使β沸石脱铝，然后在550-700℃煅烧酸处理的模板材料以除去模板。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式