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21.发明申请公开(公告)号：US20190010060A1
公开(公告)日：2019-01-10
申请号：US15766318
申请日：2017-10-10
申请人： LG CHEM, LTD.
发明人： Kyoung Shil OH , Je Kyun LEE
CPC分类号： C01B33/1585 , B01J23/04 , B01J27/24 , B01J31/0237 , B01J31/0244 , C01B33/143 , C01B33/154 , C01B33/158 , C01P2006/32 , F16L59/02 , F16L59/028 , F16L59/029 , F16L59/14
摘要： The present invention relates to a hydrophilic silica aerogel blanket for ultra-high temperature insulation, a production method thereof, and a construction method thereof. More specifically, the present invention provides a production method a hydrophilic silica aerogel blanket, the method capable of strengthening the structure of a silica gel by adding a basic catalyst in an aging step, reducing processing time and cost by omitting a surface modification step, thereby reducing manufacturing cost, and suppressing the generation of a bad odor during construction by fundamentally blocking a volatile organic compound (VOC), a hydrophilic silica aerogel blanket produced thereby, and a construction method of a hydrophilic silica aerogel blanket, the method capable of suppressing the generation of a bad odor when constructing the hydrophilic aerogel blanket on an ultra-high temperature piping equipment, and at the same time, preventing the loss of heat insulation performance due to moisture in the air.
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22.发明申请公开(公告)号：US20170369326A1
公开(公告)日：2017-12-28
申请号：US15527663
申请日：2016-11-04
申请人： LG CHEM, LTD.
发明人： Young Hun KIM , Jin Hee OH , Je Kyun LEE
IPC分类号： C01B33/154 , C01B33/159 , C07F7/10 , C09C1/30 , C01B33/158
CPC分类号： C01B33/154 , C01B33/1585 , C01B33/159 , C01P2006/11 , C07F7/10 , C09C1/30 , C09C1/3018 , C09C1/3027 , C09C1/3081
摘要： The present invention relates to a method of preparing a high hydrophobic silica aerogel having a low tap density and a hydrophobic silica aerogel prepared thereby. The method of preparing a hydrophobic silica aerogel according to the present invention may have good productivity and economic efficiency, because preparation time is reduced by simultaneously performing surface modification and solvent substitution in a single step, and may control a degree of hydrophobicity of the prepared silica aerogel by controlling a surface modification reaction by including a step of adding ammonium hydroxide. Thus, a hydrophobic silica aerogel having excellent physical properties, such as tap density and specific surface area, as well as high hydrophobicity obtained by controlling the degree of hydrophobicity may be prepared.
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公开(公告)号：US20110092363A1
公开(公告)日：2011-04-21
申请号：US12992678
申请日：2009-04-21
申请人： Dong-Kyun Seo , Danielle Ladd , Alex Volosin
发明人： Dong-Kyun Seo , Danielle Ladd , Alex Volosin
CPC分类号： C01B33/154 , B22F2998/00 , C01B13/324 , C01B32/05 , C01B33/16 , C01F7/02 , C01F7/306 , C01G1/02 , C01G23/053 , C01P2002/72 , C01P2002/86 , C01P2004/03 , C01P2004/04 , C01P2006/12 , C01P2006/14 , C01P2006/16 , B22F3/11 , B22F3/23
摘要： Preparing porous particles includes forming a gel including a first liquid and an oxygen-containing compound of a metal, semi-metal, metalloid, or semi-conductor, including an oxide, hydroxide, alkoxide, oxohydroxide, oxoalkoxide, oxo salt, or oxo salt hydrate of the metal, semi-metal, metalloid, or semi-conductor; contacting the gel with a combustible liquid to form a combustible gel; and initiating combustion of the combustible gel to form a substance including porous metal, semi-metal, metalloid, or semi-conductor oxide particles. The combustible liquid can include a volatile solvent. The porous particles have open pores with a range of nanoscale pore sizes. The porous particles may be treated further to form, for example, a composite.
摘要翻译： 制备多孔颗粒包括形成包括金属，半金属，准金属或半导体的第一液体和含氧化合物的凝胶，其包括氧化物，氢氧化物，醇盐，氧代氢氧化物，氧代醇盐，氧代盐或含氧盐 金属，半金属，准金属或半导体的水合物; 将凝胶与可燃液体接触以形成可燃性凝胶; 并引发可燃性凝胶的燃烧以形成包括多孔金属，半金属，准金属或半导体氧化物颗粒的物质。 可燃液体可以包括挥发性溶剂。 多孔颗粒具有一定范围的纳米孔径的开孔。 可以进一步处理多孔颗粒以形成例如复合材料。
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公开(公告)号：US20100040747A1
公开(公告)日：2010-02-18
申请号：US12189892
申请日：2008-08-12
IPC分类号： C12H1/12
CPC分类号： C12H1/0408 , C01B33/154
摘要： The present invention provides a method of reducing chill haze in a protein containing liquid (especially beverages resulting from fermentation such as beer and wine) by contacting the liquid with silica microgels having an average microgel diameter of at least 18 nm, more preferably at least 45 nm, and most preferably at least 70 nm. It has now been discovered that microgels having an average microgel diameter of less than about 18 nm do not adequately reduce chill haze of a protein containing liquid. In particular, while microgels having an average microgel diameter of less than about 18 nm cause the coagulation of haze-forming components, these components remain suspended in liquid and continue to cause haze despite allowing the liquid to settle for long periods of time. Conversely, it has now been discovered that microgels having an average microgel diameter of at least about 18 nm cause the coagulation and precipitation of haze-forming components and the rapid settling thereof without the use of an organic polymer which acts as a flocculating agent.
摘要翻译： 本发明提供了一种通过使液体与平均微凝胶直径为至少18nm，更优选至少为45nm的二氧化硅微凝胶相接触来降低含蛋白质液体（特别是啤酒和葡萄酒发酵产生的饮料）中的冷却雾度的方法 nm，最优选至少70nm。 现在已经发现，平均微凝胶直径小于约18nm的微凝胶不能充分降低含蛋白质液体的冷却雾度。 具体地说，虽然平均微凝胶直径小于约18nm的微凝胶导致雾化形成组分的凝结，但是这些组分保持悬浮在液体中并且继续引起雾度，尽管允许液体长时间沉降。 相反，现在已经发现，平均微粒凝胶直径至少约为18nm的微凝胶导致雾化形成组分的凝结和沉淀及其快速沉降，而不使用充当絮凝剂的有机聚合物。
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公开(公告)号：US20090314493A1
公开(公告)日：2009-12-24
申请号：US11919495
申请日：2006-05-02
CPC分类号： C09K8/5045 , C01B33/154 , C01B33/325 , C04B28/26 , C04B2103/0067 , C04B2111/00112 , C04B2111/00215 , C09K8/426 , C09K8/46 , C09K8/508 , C04B24/285 , C04B24/06
摘要： A process for forming a gel, which process comprises mixing an alkaline silicate solution with a polymer in solid form, the polymer being capable of being converted by hydrolysis into one or more organic acids; and allowing the polymer to release sufficient acid to cause formation of a silicate gel.
摘要翻译： 一种形成凝胶的方法，该方法包括将碱性硅酸盐溶液与固体形式的聚合物混合，所述聚合物能够通过水解转化成一种或多种有机酸; 并允许聚合物释放足够的酸以引起硅酸盐凝胶的形成。
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公开(公告)号：US06638354B2
公开(公告)日：2003-10-28
申请号：US10060761
申请日：2002-01-30
IPC分类号： C01B3312
CPC分类号： C01B33/193 , C01B33/143 , C01B33/154 , C01P2002/02 , C01P2006/10 , C01P2006/12 , C01P2006/14 , C01P2006/16 , C01P2006/19 , C01P2006/80 , C01P2006/90 , C04B18/101 , C09C1/3054 , C09K3/1409 , Y02W30/92 , Y10T428/2991 , C04B20/023
摘要： Disclosed are amorphous precipitated silicas, silica gels, and amorphous carbons derived from biomass and methods of producing them with and without adhered or deposited amorphous carbons produced by acidifying a caustic silicate solution produced by caustic digestion of biomass ash containing silica with and without activated carbon, the ash being obtained from thermal pyrolysis of the biomass, the acidifying effective to produce a slurry of the precipitated silica and silica gels with and without adhered or deposited amorphous carbon, and separated from the slurry the precipitated silicas and silica gels with and without the adhered or deposited amorphous carbons. The properties of the precipitated silica with adhered or deposited carbon being within the range as utilized in rubber compositions thereby avoiding the blending of silica and carbon components for such use. The precipitated silicas and silica gels without adhered or deposited carbon having metal contaminants present in low concentrations which when used in formulation of chemical-mechanical-planerization slurries used in polishing silicon wafers in the manufacture of computer chips and other electronic devices do not contaminate the wafer and final chip product and the other electronic devices.
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公开(公告)号：US5759506A
公开(公告)日：1998-06-02
申请号：US836184
申请日：1997-05-01
IPC分类号： C01B33/154 , C01B33/16 , C04B30/00 , B01D3/34 , C01B33/12
CPC分类号： C01B33/154 , C01B33/1543 , C01B33/16 , C04B30/00
摘要： The invention relates to a process for preparing modified SiO.sub.2 gels, in which the gel is aged using a solution of a condensable alkyl and/or aryl orthosilicate, or using an aqueous silicic acid solution, in order to strengthen the structure of the gel.
摘要翻译： PCT No.PCT / EP95 / 04141 Sec。 371日期1997年5月1日 102（e）日期1997年5月1日PCT提交1995年10月23日PCT公布。 WO96 / 14266 PCT公开号 日期1996年5月17日本发明涉及一种制备改性SiO 2凝胶的方法，其中使用可冷凝的烷基和/或原硅酸盐溶液或使用硅酸水溶液使凝胶老化，以加强 凝胶。
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公开(公告)号：US5614177A
公开(公告)日：1997-03-25
申请号：US485513
申请日：1995-06-07
申请人： Jacques Persello
发明人： Jacques Persello
IPC分类号： A61K8/25 , A61Q11/00 , C01B33/154 , C01B33/193 , A61K7/16 , A61K7/18 , C01B33/12 , C01B14/04
CPC分类号： C01B33/154 , A61K8/25 , A61Q11/00 , C01B33/193 , C01P2004/61 , C01P2006/10 , C01P2006/12 , C01P2006/19 , C01P2006/60 , C01P2006/80 , C01P2006/90
摘要： Novel silica particulates especially adapted for formulation to dentifrice compositions exhibit unique physical and chemical properties. In one embodiment, silica particulates have a unique surface chemistry as to be at least 50% compatible with zinc values, and have a number of OH functions, expressed as OH/nm.sup.2, of at most 15 and a zero charge point (PZC) of from 3 to 6.5. In a second embodiment, particulates have a surface chemistry as to be at least 65%, and preferably at least 90% compatible with guanidine values, notably chlorhexidine, and acidity function thereof, Ho, of at least 3.3. In a third embodiment, silica particulates are compatible with organic amines, and have a pH, in aqueous suspension, which varies according to the equations pH.ltoreq.7.5-0.7 log(C) and pH.gtoreq.5.0-0.5 log(C) and which also varies as a function of the electrical conductivity thereof, according to the equations pH.ltoreq.8.5-0.4 log(D) and pH.gtoreq.7.0-0.6 log(D) wherein (C) represents the weight concentration of said silica suspension, expressed % SiO.sub.2 and (D) represents the electrical conductivity of such aqueous silica suspension expressed in microsiemens.multidot.cm.sup.-1. In a fourth embodiment, novel silica particulates are compatible with such metal cations as zinc, tin, strontium, and the like, as well as with the fluorides, and have a unique surface chemistry such that the number of OH.sup.- functions thereof, expressed in OH.sup.- /nm.sup.2, is equal to or less than 10, and also have a zero charge point (ZCP) ranging from 3 to 6.5 and a pH, in aqueous suspension, which varies as a function of the electrical conductivity thereof according to the equation pH=b-a log (D) in which a is a constant equal to or less than 0.6; b is a constant equal to or less than 8.5; and (D) represents the electrical conductivity of such aqueous silica suspension, expressed in microsiemens.multidot.cm.sup.-1.
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公开(公告)号：US4696808A
公开(公告)日：1987-09-29
申请号：US933961
申请日：1986-11-24
IPC分类号： C01B33/154 , C30B5/00 , C01B33/12
CPC分类号： C30B5/00 , C01B33/154 , C30B29/12 , C30B29/46
摘要： A process for the preparation of transparent silica gels which can be used as crystal growth media is disclosed. A quantity of cation exchange resin beads is placed in a solution of a soluble potassium salt and stirred for several hours to allow the potassium ions to replace the cations on the resin beads. The supernatant liquid is then decanted through a filter, and the treated resin beads are rinsed with distilled water to remove excess salts. The treated resin beads are then transferred into a sodium silicate solution. The resulting mixture is stirred to allow the potassium ions on the treated resin beads to exchange with the sodium ions in the sodium silicate solution. The treated silicate solution is then poured through a coarse filter. A volume of boiled, cooled distilled water is added to a volume of the treated silicate solution, after which a volume of acetic acid solution is added to the mixture of distilled water and treated silicate solution. This mixture is then allowed to gel at room temperature, whereby a transparent silica gel is produced. The transparent silica gel is used as a crystal growth medium to simulate the convectionless environment of space and produce structurally perfect crystals.
摘要翻译： 公开了可用作晶体生长介质的透明硅胶的制备方法。 将一定数量的阳离子交换树脂珠置于可溶性钾盐溶液中并搅拌数小时以使钾离子替代树脂珠上的阳离子。 然后将上清液通过过滤器倾析，用蒸馏水冲洗经处理的树脂珠以除去过量的盐。 然后将经处理的树脂珠转移到硅酸钠溶液中。 搅拌所得混合物，使处理后的树脂珠上的钾离子与硅酸钠溶液中的钠离子交换。 然后将经处理的硅酸盐溶液通过粗过滤器倒入。 将一定量的煮沸的冷却的蒸馏水加入一定体积的经处理的硅酸盐溶液中，然后将一定体积的乙酸溶液加入到蒸馏水和经处理的硅酸盐溶液的混合物中。 然后将该混合物在室温下凝胶化，由此制备透明硅胶。 透明硅胶用作晶体生长介质，以模拟空间的无对流环境，并产生结构完美的晶体。
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公开(公告)号：US4640807A
公开(公告)日：1987-02-03
申请号：US758623
申请日：1985-07-24
IPC分类号： C01B33/16 , B01J21/08 , C01B33/154 , C01B33/157 , C01B33/12
CPC分类号： C01B33/1546 , B01J21/08 , C01B33/154
摘要： Silica spheres are prepared in a process comprising:(a) preparing a silica hydrosol by mixing an aqueous solution of an alkali metal silicate with an aqueous solution of an acid;(b) converting the hydrosol into droplet form;(c) aging the droplets in a fluid to produce hydrogel particles;(d) partially drying the hydrogel particles at 10.degree. to 60.degree. C. in air having a relative humidity in the range of from 45 to 95%, to a water content in the range of from 0.3 to 1.3 kg/kg solids;(e) decreasing the cation content of the hydrogel particles by ion-exchange in an aqueous medium to less than 10% w, calculated on dry material; and(f) finally drying the hydrogel particles to obtain silica spheres.
摘要翻译： 二氧化硅球体的制备方法包括：（a）通过将碱金属硅酸盐的水溶液与酸的水溶液混合来制备二氧化硅水溶胶; （b）将水溶胶转化成液滴形式; （c）使流体中的液滴老化以产生水凝胶颗粒; （d）在相对湿度为45至95％的空气中将水凝胶颗粒部分干燥至10至60℃，水含量范围为0.3至1.3kg / kg固体; （e）通过在水性介质中的离子交换将水凝胶颗粒的阳离子含量降低至低于10％w，以干材料计算; 和（f）最后干燥水凝胶颗粒以获得二氧化硅球体。
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