专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

91. 发明授权

US4025295A Method of burning pulverous raw material and rotary kiln plant therefor 失效
标题翻译：烧粉原料和回转窑厂的方法
公开(公告)号：US4025295A
公开(公告)日：1977-05-24
申请号：US587864
申请日：1975-06-18
申请人： Jorn Touborg
发明人： Jorn Touborg
IPC分类号： C04B7/44 , B01J6/00 , C04B2/02 , C04B2/12 , C04B7/43 , C04B7/45 , F27B7/20 , F27B7/34 , F27B15/12 , F27B15/14 , F27D13/00 , F27B15/00 , F26B17/00
CPC分类号： C04B7/434 , C04B2/12 , F27B7/2033
摘要： An improved method is disclosed for heat treating a preheated, pulverous raw material such as cement raw meal wherein a stream of oxygen containing gas is directed through a calcination chamber and the preheated raw meal and a calcining fuel are fed separately therein in a manner which provides mixing of the raw meal and the fuel and thereafter creates eddys of the mixture when it contacts the oxygen containing gas. The combined stream is directed out of the chamber and particles of raw meal are separated therefrom. A calcination plant is disclosed for practicing the method of the invention and a rotary kiln plant is disclosed for burning cement raw meal in a manner which includes at least partial calcination according to the inventive method.
摘要翻译：公开了一种改进的方法，用于对预热的粉末原料如水泥生料进行热处理，其中含氧气体流通过煅烧室，预热的生料和煅烧燃料以其提供的方式单独供给，混合生料和燃料，然后在与含氧气体接触时产生混合物的混合物。将组合的流引导出室，并将生料的颗粒与其分离。公开了一种用于实施本发明方法的煅烧设备，并且公开了一种用于以至少包括根据本发明方法的部分煅烧的方式燃烧水泥生料的回转窑设备。

92. 发明授权

US3998928A Process for calcining pellet-shaped calcium hydroxide 失效
标题翻译：煅烧颗粒状氢氧化钙的方法
公开(公告)号：US3998928A
公开(公告)日：1976-12-21
申请号：US549175
申请日：1975-02-12
申请人： Joachim Stendel , Wilhelm Portz , Georg Strauss , Heinrich Weiler , Gunther Moormann , Horst Witt
发明人： Joachim Stendel , Wilhelm Portz , Georg Strauss , Heinrich Weiler , Gunther Moormann , Horst Witt
IPC分类号： C04B2/02 , C01F11/02 , C01F11/04 , C04B2/10 , F27B9/24
CPC分类号： C04B2/10 , C01F11/04 , C01P2004/61 , Y02P40/42
摘要： Pellet-shaped calcium hydroxide forming part of the mixture of flux and ores in electrothermal calcium carbide furnaces is calcined. The pellets are made by granulating or briquetting moist calcium hydroxide, delivered to a sintering grate and conveyed thereon through a heating zone, wherein high temperatures are produced by the combustion of gas, above the grate, and wherein the combustion gas is exhausted, below the grate. The calcium hydroxide pellets are more especially placed on to the grate, covered with a layer of broken limestone and the undried pellets are directly conveyed through the heating zone, in an apparatus for carrying out the process.
摘要翻译：在电热碳化钙炉中形成焊剂和矿石混合物的一部分的颗粒状氢氧化钙被煅烧。颗粒通过将湿氢氧化钙造粒或压块而制成，输送到烧结炉排并通过加热区在其上输送，其中通过燃烧气体，在炉排上方产生高温，并且其中燃烧气体被排出，低于炉排氢氧化钙颗粒更特别地放置在炉排上，被一层破碎的石灰石覆盖，未干燥的颗粒通过加热区直接输送到用于进行该过程的装置中。

93. 发明授权

US3969493A Thermochemical process for manufacture of hydrogen and oxygen from water 失效
标题翻译：从水中制造氢气和氧气的热化学工艺
公开(公告)号：US3969493A
公开(公告)日：1976-07-13
申请号：US588873
申请日：1975-06-20
申请人： Kinjiro Fujii , Wakichi Kondo
发明人： Kinjiro Fujii , Wakichi Kondo
IPC分类号： C04B2/02 , C01B3/02 , C01B3/04 , C01B3/06 , C01B7/13 , C01B11/22 , C01B13/02 , C01F11/04 , C01F11/20 , C01B13/00
CPC分类号： C01B13/0203 , C01B11/22 , C01B3/068 , C01F11/20 , Y02E60/364
摘要： Calcium hydroxide and iodine are reacted with each other in the presence of water to produce calcium iodate and calcium iodide, the former of which precipitates from the reaction solution and is obtained by filtration and the latter of which is thereafter separated from the filtrate by evaporation separation. The calcium iodate is heated until it is converted into calcium oxide, whereafter there ensues generation of a mixed gas of iodine and oxygen. The mixed gas is cooled causing the iodine component thereof to solidify and pure oxygen gas is consequently liberated to be obtained as one product. The calcium iodide is solidified and subsequently heated under a current of steam to cause it to undergo conversion into calcium oxide with liberation of hydrogen iodide gas. The hydrogen iodide gas thus liberated is then separated by a known method into iodine and hydrogen which is obtained as another product. The calcium oxide and iodine remaining after separation of oxygen and hydrogen are recycled to serve again as starting reactants.
摘要翻译：氢氧化钙和碘在水的存在下彼此反应，产生碘酸钙和碘化钙，其中前者从反应溶液中沉淀出来，通过过滤得到，后者通过蒸发分离从滤液中分离出来。将碘酸钙加热直至其转化为氧化钙，然后产生碘和氧气的混合气体。将混合气体冷却，使其碘成分固化，从而释放纯氧气作为一种产物。将碘化钙固化并随后在蒸汽电流下加热，使其在释放碘化氢气体时转化为氧化钙。然后将如此释放的碘化氢气体通过已知方法分离成碘和氢气，其作为另一产物获得。分离氧气和氢气后剩余的氧化钙和碘被再循环，作为起始反应物。

94. 发明授权

US3597271A Method of producing air stable alkaline-earth metal oxide while avoiding eutectic melting 失效
标题翻译：防止保护性熔融时生产空气稳定的碱土金属氧化物的方法
公开(公告)号：US3597271A
公开(公告)日：1971-08-03
申请号：US3597271D
申请日：1969-07-09
申请人： WESTINGHOUSE ELECTRIC CORP
发明人： CAWLEY JOHN M , YOUNG ROBERT G , WAINIO ALBERT W
IPC分类号： C04B2/02 , H01J9/04 , H01J9/12 , B44D1/02 , C23C , C23D
CPC分类号： H01J9/125 , H01J9/042 , H01J2201/32
摘要： THE METHOD OF PRODUCING AIR STABILIZED-EARTH METAL OXIDE EMISSION MATERIAL BY MEANS OF A TWO-STEP HEATING PROCESS OF MIXED ALKALINE-EARTH METAL CARBONATE, BY WHICH THE EUTECTIC MELTING STAGE OF THE CARBONATE-OXIDE MIXTURE IS AVOIDED. ALKALINE-EARTH METAL CARBONATE IS HEATED TO A TEMPERATURE WHICH IS BELOW THE EUTECTIC MELTING TEMPERATURE FOR ALKALINE-EARTH CARBONATE-OXIDE MIXTURES. THE HEATING IS CONTINUED UNTIL ALL OF THE ALKALINEEARTH METAL CARBONATE IS CONVERTED TO ALKALINE EARTH METAL OXIDE. THE ALKALINE-EARTH METAL OXIDE IS THEN HEATED FROM ABOUT 1300*C. TO ABOUT 1750*C. FOR A PREDETERMINED TIME TO RENDER THE OXIDE AIR STABLE.

95. 发明公开

US20240368469A1 COMPOSITIONS AND METHODS FOR ACCELERATED SOIL STABILIZATION 审中-公开
公开(公告)号：US20240368469A1
公开(公告)日：2024-11-07
申请号：US18654912
申请日：2024-05-03
申请人： University of Maine System Board of Trustees
发明人： Aaron P. Gallant , Warda Bint Ashraf
IPC分类号： C09K17/04 , C04B2/02 , C09K105/00
CPC分类号： C09K17/045 , C04B2/02 , C09K2105/00
摘要： The present disclosure provides compositions and methods for accelerating soil stabilization using carbon dioxide.

96. 发明公开

US20240240072A1 METHOD FOR STABILIZING WELLBORE, STABILIZED WELLBORE AND WELLBORE STABILIZING FLUID 审中-公开
公开(公告)号：US20240240072A1
公开(公告)日：2024-07-18
申请号：US18620446
申请日：2024-03-28
申请人： SAUDI ARABIAN OIL COMPANY , KING FAHD UNIVERSITY OF PETROLEUM & MINERALS
发明人： Mahmoud H. Desouky , Murtada Saleh Aljawad , Theis Solling , Murtadha J. AlTammar , Khalid Mohammed Alruwaili
IPC分类号： C09K8/46 , C04B2/02 , C04B7/345 , C04B26/32 , C09K8/44 , E21B33/138 , C04B103/00
CPC分类号： C09K8/46 , C04B2/02 , C04B7/345 , C04B26/32 , C09K8/44 , E21B33/138 , C04B2103/0093
摘要： A method for stabilizing a wellbore includes introducing a hardening agent into the wellbore, mixing the hardening agent with a carrier fluid in the wellbore to produce a wellbore stabilizing fluid, and treating a wellbore wall of the wellbore by contacting the wellbore stabilizing fluid to a surface of the wellbore wall for at least 48 hours. A wellbore stabilizing fluid includes a hardening agent and a carrier fluid. The hardening agent is selected from one of 10 to 100 g/L of the calcium hydroxide nanocrystals, 5 to 99.9% by volume of tetraethyl orthosilicate (TEOS), and 10 to 50 g/L of zinc sulfate. A stabilized wellbore includes a wellbore having a wellbore wall treated with a wellbore stabilizing fluid comprising a hardening agent. The Young's modulus of the treated wellbore wall is at least 5% higher than a Young's modulus of a non-treated wellbore wall.

97. 发明授权

US11773020B2 Gypsum composition comprising uncooked starch having mid-range viscosity, and methods and products related thereto 有权
公开(公告)号：US11773020B2
公开(公告)日：2023-10-03
申请号：US17306460
申请日：2021-05-03
申请人： UNITED STATES GYPSUM COMPANY
发明人： Yijun Sang , Brian J. Christ
IPC分类号： C04B24/10 , B32B13/02 , C04B24/38 , C04B28/14 , E04B2/72 , C08B31/06 , C08L3/02 , C08L3/06 , C04B2/02 , C04B111/00
CPC分类号： C04B24/10 , B32B13/02 , C04B24/38 , C04B28/14 , B32B2607/00 , C04B2111/0062 , C04B2201/10 , C04B2235/447 , E04B2/723 , C04B28/14 , C04B22/16 , C04B24/38 , C04B2103/408
摘要： Disclosed are product (e.g., board), slurry, and methods relating to an uncooked starch that can be used to enhance strength in one or more gypsum layers in the board. The uncooked starch has a hot water viscosity of from about 20 BU to about 300 BU according to the HWVA method, and/or a mid-range peak viscosity of from about 120 Brabender Units to about 1000 Brabender Units.

98. 发明申请

US20220380265A1 FORMULATIONS AND PROCESSING OF CEMENTITIOUS COMPONENTS TO MEET TARGET STRENGTH AND CO2 UPTAKE CRITERIA 有权
公开(公告)号：US20220380265A1
公开(公告)日：2022-12-01
申请号：US17840809
申请日：2022-06-15
申请人： The Regents of the University of California
发明人： Gaurav Sant , Iman Mehdipour , Gabriel D. Falzone
IPC分类号： C04B40/02 , C04B2/02
摘要： Provided herein are compositions and methods of carbonation processing for the fabrication of cementitious materials and concrete products. Embodiments include manufacturing processes of a low-carbon concrete product comprising: forming a cementitious slurry including portlandite; shaping the cementitious slurry into a structural component; and exposing the structural component to a CO2 waste stream, thereby enabling manufacture of the low-carbon concrete product.

99. 发明授权

US10221094B1 Method of manufacturing hydrated lime 有权
公开(公告)号：US10221094B1
公开(公告)日：2019-03-05
申请号：US15466097
申请日：2017-03-22
申请人： Mississippi Lime Company
发明人： Randy J. Griffard , Gerald K. Bequette , William S. Allebach, Sr. , Paul J. Ramer
IPC分类号： C04B2/04 , C01F11/16 , B07B7/00 , B02C19/00 , C04B2/02 , C04B2/00
摘要： A method of providing highly reactive hydrated lime and the resultant lime hydrate where an initial lime feed comprising calcium and impurities is first ground to a particle-size distribution with relatively coarse particles. Smaller particles are then removed from this ground lime and the smaller particles are hydrated, allowed to mature in a damp state, and flash dried to form a hydrated lime, which is then milled to a significantly smaller particle size than that of the relatively coarse particles.

100. 发明申请

US20180065887A1 High Quality Calcium Hydroxide Slurries 审中-公开
公开(公告)号：US20180065887A1
公开(公告)日：2018-03-08
申请号：US15684444
申请日：2017-08-23
申请人： Lhoist North America, Inc.
发明人： Kevin D. Ingram , Deborah Ballard , Lacey N. Kucerak
IPC分类号： C04B2/02 , C01F11/02 , C09K15/06 , C02F5/06
CPC分类号： C04B2/02 , C01F11/02 , C01P2006/22 , C02F1/00 , C02F5/06 , C04B2/06 , C09K15/06
摘要： A calcium hydroxide slurry is formed by combining a polymer additive with lime and water to form an aqueous slurry. The slurry so produced is viscostable, resists hard packing even after prolonged storage, is easily redispersed and has antiscaling properties. The amount of lime used is between 35 to 55% by weight of the slurry. The polymer additive is a polycarboxylate dispersing agent and is added in an amount between about 0.1 to 3% by weight of lime.

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