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237 条记录 (耗时 0.014 秒)

    Calcination of strontium carbonate
    81.
    发明授权
    Calcination of strontium carbonate 失效
    煅烧碳酸锶

    公开(公告)号：US3875298A

    公开(公告)日：1975-04-01

    申请号：US38011273

    申请日：1973-07-17

    申请人： KAISER ALUMINIUM CHEM CORP

    发明人： COATNEY RICHARD L ,  HOUSH LLOYD M ,  VAN DRESER MERTON L

    IPC分类号： C01F11/06

    CPC分类号： C01F11/06

    摘要： Strontium carbonate can be calcined in a rotary kiln without excessive liquid formation if it is admixed with at least 8 percent finely divided carbon and the kiln is operated with not less than 2 percent combustibles in the exit gases when at least 85 percent of the strontium carbonate feed passes a 325 mesh screen. Under these conditions, the mixture of strontium carbonate and carbon forms agglomerates soon after entering the kiln, minimizing premature burning of the carbon and preventing sticking of the strontium carbonate to the kiln wall.

    摘要翻译： 碳酸锶可以在回转窑中煅烧而不会过多的液体形成，如果它与至少8％的细碎碳混合，并且当至少85％的碳酸锶与出口气体中不少于2％的可燃物一起操作窑时， 饲料通过325目筛网。 在这些条件下，碳酸锶和碳的混合物在进入窑后立即形成附聚物，最小化碳的过早燃烧并防止碳酸锶粘附在窑壁上。

    Method and device for thermically treating fine-grained materials suspended in a hot gas stream
    82.
    发明授权
    Method and device for thermically treating fine-grained materials suspended in a hot gas stream 失效
    用于热处理在热气流中悬浮的细粒材料的方法和装置

    公开(公告)号：US3645513A

    公开(公告)日：1972-02-29

    申请号：US3645513D

    申请日：1970-01-15

    申请人： KLOECKNER HUMBOLDT DEUTZ AG

    发明人： DEUSSNER HERBERT

    IPC分类号： B01J8/18 ,  C01F11/06 ,  F26B17/10 ,  F27B15/00

    CPC分类号： C01F11/06 ,  B01J8/1836 ,  F26B17/101 ,  Y02P20/129

    摘要： Fine-grained material, such as lime, dolomite and magnesite, is subjected to a thermic treatment in suspension in a hot gas stream and the desired product is subsequently separated in a separator. A vertically disposed treatment chamber is divided into two vertical parallel reaction zones and is connected at its lower end with a hot gas producer whose hot gases pass through the treatment zones and into separator. The material to be treated is so introduced into the treatment chamber that the coarser fraction of the material drops in one of the reaction zones into an upstream of the hot gas having a relatively low velocity while subsequently in the other reaction zone the material is caused to flow with increased velocity and then into the separator. The exhaust gas leaving the separator is conducted to a preheater, preferably a multistage cyclone heat exchanger, and the dust discharge conduit of the latter is connected with one of the two reaction zones of the treatment zone. The treated material which leaves the separator is cooled and the extracted heat is conducted to the hot gas producer as additional combustion air.

    摘要翻译： 将微粒材料如石灰，白云石和菱镁矿在热气流中悬浮进行热处理，随后将所需产物在分离器中分离。 垂直设置的处理室分为两个垂直平行反应区，并在其下端与热气体生产者连接，其热气体通过处理区并进入分离器。 待处理的材料被引入处理室中，较粗的材料部分在一个反应​​区域中滴落到具有相对较低速度的热气体的上游，而在另一个反应区域中，材料被引到 流速增加，然后进入分离器。 离开分离器的废气被传送到预热器，优选多级旋风分离器热交换器，并且后者的排放管道与处理区域的两个反应区域中的一个相连。 离开分离器的经处理的材料被冷却并且提取的热量作为附加的燃烧空气被传导到热气体生产者。

    CARBON DIOXIDE REMOVAL USING FLASH CALCINED QUICKLIME
    87.
    发明公开
    CARBON DIOXIDE REMOVAL USING FLASH CALCINED QUICKLIME 审中-公开

    公开(公告)号：US20240351901A1

    公开(公告)日：2024-10-24

    申请号：US18642386

    申请日：2024-04-22

    申请人： Mississippi Lime Company

    发明人： Martin L. Gran ,  Paul Ramer ,  Nathan Hooper ,  Elizabeth J. Vitale

    IPC分类号： C01F11/06 ,  C01F11/18

    CPC分类号： C01F11/06 ,  C01F11/18

    摘要： Systems and methods for using calcium oxide as a carbon dioxide capture tool. The calcium oxide is repeatedly formed from calcium carbonate and is reacted with calcium dioxide back to calcium carbonate where liberated calcium dioxide from calcination of the calcium carbonate is done in a flash calciner and liberated carbon dioxide is captured using a different carbon capture methodology. This method allows for carbon dioxide capture at a location where other methodologies would not be useable and where the stable and generally safe nature of calcium carbonate allows for efficient transport of captured carbon dioxide.

    Sodium hydroxide production with carboxylic acid and sulfur dioxide intermediates
    89.
    发明授权
    Sodium hydroxide production with carboxylic acid and sulfur dioxide intermediates 有权

    公开(公告)号：US12030846B2

    公开(公告)日：2024-07-09

    申请号：US18198664

    申请日：2023-05-17

    申请人： INNOVATOR ENERGY, LLC

    发明人： Ethan Novek

    IPC分类号： C07C51/02 ,  C01F11/02 ,  C01F11/04 ,  C01F11/06 ,  C07C51/47

    CPC分类号： C07C51/02 ,  C01F11/02 ,  C01F11/04 ,  C01F11/06 ,  C07C51/47

    摘要： The present application pertains to processes producing oxides using a weak acid intermediate. In one embodiment a material comprising calcium carbonate is reacted with a solution comprising aqueous carboxylic acid to form a gas comprising carbon dioxide and a solution comprising aqueous calcium carboxylate. The solution comprising aqueous calcium carboxylate is reacted with sodium sulfate to form a solution comprising aqueous sodium carboxylate and a solid comprising calcium sulfate. The solution comprising aqueous sodium carboxylate is reacted with sulfur dioxide to form sodium sulfite and an aqueous carboxylic acid. The sodium sulfite is separated from said aqueous carboxylic acid and reacted to form a solid comprising calcium sulfite which is decomposed to form calcium oxide and sulfur dioxide.