Process for producing low sodium sea salt from seawater
    11.
    发明授权
    Process for producing low sodium sea salt from seawater 有权
    从海水中生产低钠海盐的方法

    公开(公告)号:US07621968B1

    公开(公告)日:2009-11-24

    申请号:US11509901

    申请日:2006-08-25

    IPC分类号: C01D7/24

    摘要: There is provided a low sodium sea salt and a method for producing the same. A first amount of natural seawater containing sodium, chloride, potassium, magnesium, sulfate and other trace minerals is introduced into a containment structure which is periodically exposed to the sun. Preferably, the containment structure is located outdoors in an arid climate with direct exposure to sunlight. An amount of water is evaporated forming a brine. An amount of sodium chloride is crystallized and an amount of the crystallized sodium chloride is removed so that the remaining brine includes substantial amounts of potassium, magnesium and sulfate. A second amount of natural seawater is combined with the remaining brine forming a diluted brine. An amount of water is evaporated from the diluted brine. Sodium chloride, potassium sulfate and magnesium sulfate is crystallized forming a low sodium sea salt whereby the sodium chloride is no more than 70 weight percent.

    摘要翻译: 提供了低钠海盐及其制备方法。 将含有钠,氯化物,钾,镁,硫酸盐和其他微量矿物质的天然海水的第一量引入周期性暴露在阳光下的遏制结构中。 优选地,容纳结构位于直接暴露在阳光下的干燥气候中的室外。 蒸发一定量的水形成盐水。 结晶一定量的氯化钠,除去一定量的结晶氯化钠,使得剩余的盐水含有大量的钾,镁和硫酸盐。 将第二量的天然海水与剩余的盐水混合形成稀盐水。 从稀释的盐水中蒸发出一定量的水。 氯化钠,硫酸钾和硫酸镁结晶形成低钠海盐,由此氯化钠不超过70重量%。

    Separation of Purified Potassium Sulfate from Glaserite
    13.
    发明申请
    Separation of Purified Potassium Sulfate from Glaserite 有权
    从硅酸盐分离纯化的硫酸钾

    公开(公告)号:US20090104106A1

    公开(公告)日:2009-04-23

    申请号:US12252591

    申请日:2008-10-16

    IPC分类号: C01D5/00

    CPC分类号: C01D5/00

    摘要: A method can, in one general aspect, include steps for the recovery of potassium sulfate and mirabilite from glaserite. In another general aspect, a method includes dissolving glaserite in water at an elevated temperature to produce a saturated or nearly saturated solution, and cooling the solution to a temperature where potassium sulfate and mirabilite will crystallize from the solution as stable phases. In yet another general aspect, a method includes adding glaserite to a saturated solution of glaserite in water and mixing for enough time at a temperature where the glaserite will decompose into potassium sulfate and mirabilite as stable phases. In yet another general aspect, a method includes separating potassium sulfate from mirabilite using a froth floatation process.

    摘要翻译: 在一个一般方面,一种方法可以包括从闪锌矿中回收硫酸钾和芒硝的步骤。 在另一个总体方面,一种方法包括在高温下将芒桃石溶解在水中以产生饱和或接近饱和的溶液,并将溶液冷却至硫酸钾和芒硝从溶液中以稳定相结晶的温度。 在另一个总体方面,一种方法包括将镁硅酸盐在水溶液中加入氟硅藻土的饱和溶液,并在闪锌矿分解成硫酸钾和芒硝作为稳定相的温度下混合足够的时间。 在另一个总体方面,一种方法包括使用泡沫漂浮法从芒硝中分离出硫酸钾。

    Low sodium salt compositions and methods of preparation and uses thereof
    14.
    发明申请
    Low sodium salt compositions and methods of preparation and uses thereof 有权
    低钠盐组合物及其制备方法及用途

    公开(公告)号:US20090041900A1

    公开(公告)日:2009-02-12

    申请号:US12073541

    申请日:2008-03-06

    IPC分类号: A23L1/237 A23L1/302

    CPC分类号: C01D5/00 A23L27/40 C01D3/08

    摘要: Low sodium salt compositions containing a blend of sodium chloride and one or more magnesium, sodium and potassium salts are provided. Also provided are methods for making and using the compositions. Further provided are food products containing the compositions.

    摘要翻译: 提供了含有氯化钠和一种或多种镁,钠和钾盐的混合物的低钠盐组合物。 还提供了制备和使用组合物的方法。 进一步提供含有组合物的食品。

    Method for Crystallizing Soluble Salts of Divalent Anions from Brine
    15.
    发明申请
    Method for Crystallizing Soluble Salts of Divalent Anions from Brine 有权
    从盐水中结晶二价阴离子的可溶性盐的方法

    公开(公告)号:US20080056981A1

    公开(公告)日:2008-03-06

    申请号:US11666000

    申请日:2005-10-18

    IPC分类号: C01D3/06

    摘要: The invention pertains to a method for at least partially removing soluble divalent anions from an aqueous divalent anion-containing brine solution comprising a crystal growth inhibitor (CGI) for the divalent anion, the method comprising the process steps: obtaining a sodium chloride concentration between 100 g/L and saturation in the presence or absence of a CGI for sodium chloride or a sodium chloride concentration above saturation in the presence of a CGI for sodium chloride, and acidifying the solution to a pH below 11.5; subjecting the solution to a membrane filtration step thereby separating the brine solution into a brine stream being supersaturated for the divalent anion (concentrate), and a brine stream being undersaturated for the divalent anion (permeate); subjecting the supersaturated brine stream comprising the crystal growth inhibitor for the divalent anion to a crystallization process, removing crystallized divalent anion; and optionally, recycling the overflow of the crystallizer to the brine solution for subjecting it again to the membrane filtration step.

    摘要翻译: 本发明涉及从含二价阴离子的含水二价阴离子盐水溶液中至少部分除去可溶性二价阴离子的方法,该方法包括二价阴离子的结晶生长抑制剂(CGI),该方法包括以下步骤:获得100 在存在或不存在用于氯化钠的CGI或在氯化钠的CGI存在下高于饱和的氯化钠浓度的情况下的饱和度,并将溶液酸化至低于11.5的pH; 使溶液进行膜过滤步骤,从而将盐水溶液分离成用于二价阴离子(浓缩物)过饱和的盐水流,并且对于二价阴离子(渗透物)不饱和的盐水流; 将包含结晶生长抑制剂的过饱和盐水流作为二价阴离子进行结晶处理,除去结晶二价阴离子; 并且可选地,将结晶器的溢流器再循环到盐水溶液中,以再次使其进行膜过滤步骤。

    Integrated hydrogen sulfide absorber system for making potassium-sulfur fertilizer
    16.
    发明申请
    Integrated hydrogen sulfide absorber system for making potassium-sulfur fertilizer 审中-公开
    综合硫化氢吸收系统,用于制造硫酸钾肥

    公开(公告)号:US20060236735A1

    公开(公告)日:2006-10-26

    申请号:US11114790

    申请日:2005-04-26

    IPC分类号: C05D9/00

    摘要: A method of scrubbing hydrogen sulfide (H2S) from a gas stream employing a potassium-based sorbent to remove at least a portion of the H2S. This results in reaction products that are oxidized and converted into potassium-sulfur based fertilizers. The potassium based sorbent may be potassium hydroxide (KOH) made on site from potash. Hydrogen chloride (HCI) may be a byproduct when the sorbent is made from potash.

    摘要翻译: 从使用钾基吸附剂的气流中洗涤硫化氢(H 2 S 2 S)以除去H 2 S 2 S的至少一部分的方法。 这导致反应产物被氧化并转化为基于硫酸钾的肥料。 钾基吸附剂可以是从钾盐现场制成的氢氧化钾(KOH)。 当吸附剂由钾肥制成时,氯化氢(HCl)可能是副产物。

    Process for removing sodium sulfate from nickel hydroxide effluent streams
    17.
    发明授权
    Process for removing sodium sulfate from nickel hydroxide effluent streams 失效
    从氢氧化镍流出物流中除去硫酸钠的方法

    公开(公告)号:US06652603B2

    公开(公告)日:2003-11-25

    申请号:US09896806

    申请日:2001-06-29

    申请人: Juraj Babjak Feng Zou

    发明人: Juraj Babjak Feng Zou

    IPC分类号: B01D900

    摘要: A method for removing sodium sulfate from nickel and ammonia containing aqueous effluents. The effluents, typically from a nickel hydroxide production process, are cooled to or below 30° C. to crystallize and precipitate the sodium sulfate and dewater the effluent. The sodium sulfate is retrieved and the remaining solution is recycled back to the nickel hydroxide production process.

    摘要翻译: 从含镍和含氨水的废水中除去硫酸钠的方法。 通常来自氢氧化镍生产过程的流出物被冷却至或低于30℃以结晶并沉淀硫酸钠并使流出物脱水。 回收硫酸钠,将剩余的溶液循环回氢氧化镍生产过程。

    Apparatus and method for treating sesquisulfate waste streams
    18.
    发明授权
    Apparatus and method for treating sesquisulfate waste streams 失效
    用于处理过硫酸盐废物流的设备和方法

    公开(公告)号:US06475447B1

    公开(公告)日:2002-11-05

    申请号:US09651524

    申请日:2000-08-29

    IPC分类号: B01D900

    CPC分类号: C01D5/00

    摘要: The specification discloses an apparatus and method for treating a slurry containing sodium sesquisulfate to recover sulfate and acid constituents therefrom. The apparatus includes a treatment vessel having a separation wall delineating a clarifying zone and a mixing zone. Slurry containing sesquisulfate crystals is introduced into the mixing zone along with water and the material is mixed to promote dissolution of the crystals and formation of sodium sulfate solids. Sodium sulfate solids are collected in a lower portion of the treatment vessel and conveyed out of the vessel, and liquid from the clarifying zone is conducted from an upper end of the treatment vessel to a conventional liquid processing unit. Treatment of a sesquisulfate-containing slurry in accordance with the invention provides sodium sulfate containing little or no sesquisulfate crystals thereby reducing the need for vacuum filtration or other expensive separation techniques to recover sulfuric acid and sodium sulfate solids from the slurry.

    摘要翻译: 本说明书公开了一种处理含有倍半硫酸钠的浆料以从其中回收硫酸盐和酸成分的装置和方法。 该设备包括具有描绘澄清区和混合区的分隔壁的处理容器。 将含有倍半硫酸盐晶体的浆料与水一起引入混合区,并将该物质混合以促进晶体的溶解和形成硫酸钠固体。 将硫酸钠固体收集在处理容器的下部并输送到容器中,并且来自澄清区的液体从处理容器的上端传导到常规的液体处理单元。 根据本发明的处理含有倍半硫酸盐的浆料提供了含有很少或不含有四异硫酸盐晶体的硫酸钠,从而减少了对真空过滤或其它昂贵的分离技术从浆料中回收硫酸和硫酸钠固体的需要。

    Proces for making calcium chlorides
    19.
    发明申请
    Proces for making calcium chlorides 失效
    处理氯化钙

    公开(公告)号:US20020076375A1

    公开(公告)日:2002-06-20

    申请号:US10000410

    申请日:2001-11-02

    IPC分类号: C01F011/22

    摘要: A new process for producing calcium chloride and other metal halides from the carbonates, bicarbonates, oxides of these metals. The process utilizes the discovery that hydrogen halides, when used in a true or conventional fluidizing medium in shallow beds of the aforementioned solids at moderately elevated temperatures in a continuous counter current process results in the conversion of the metal carbonates, bicarbonates, and oxides, into metal halides and carbon dioxide gas and/or water vapor. The process is carried out in a series of true or conventional fluidized beds preferable but not necessarily arranged in a vertical configuration so that the solids flow downward due to the fluidized process and the hydrogen halides flow counter currently in an upward direction producing metal halides at the bottom and pure carbon dioxide gas and/or water vapor at the top.

    摘要翻译: 从碳酸盐,碳酸氢盐,这些金属的氧化物生产氯化钙和其他金属卤化物的新方法。 该方法利用了这样一种发现:当在连续的逆流过程中在适度升高的温度下在上述固体的浅层中的真实或常规的流化介质中使用氢卤化物时,导致金属碳酸盐,碳酸氢盐和氧化物的转化为 金属卤化物和二氧化碳气体和/或水蒸汽。 该方法在一系列真实或常规流化床中进行,优选但不必须以垂直构型设置,使得固体由于流化过程而向下流动,并且卤化氢目前处于向上的方向流动,从而产生金属卤化物 底部和纯二氧化碳气体和/或水蒸气在顶部。

    Process for manufacturing potassium sulfate fertilizer and other metal sulfates
    20.
    发明授权
    Process for manufacturing potassium sulfate fertilizer and other metal sulfates 失效
    硫酸钾肥及其他金属硫酸盐生产工艺

    公开(公告)号:US06365122B1

    公开(公告)日:2002-04-02

    申请号:US09100994

    申请日:1998-06-22

    IPC分类号: C01D500

    摘要: A new process of preparing potassium sulfate fertilizer and other metal sulfates from the chlorides and other halides of these metals. The process utilizes the discovery that sulfur dioxide or trioxide, when introduced as a fluidizing medium into shallow beds of the halide salts at moderately elevated temperatures (1000° F.-1150° F.) in a counter current process results in the conversion of the metal halides into metal sulfates and the halide gas. The process is carried out in a series of true fluidized beds preferably but not necessarily arranged in a vertical configuration so that the solids flow downward due to the fluidized process and the sulfur dioxide or trioxide gases flow counter currently in an upward direction producing pure metal sulfates at the bottom and pure halide gas at the top.

    摘要翻译: 从这些金属的氯化物和其他卤化物制备硫酸钾肥料和其他金属硫酸盐的新工艺。 该方法利用二氧化硫或三氧化硫作为流化介质以适当升高的温度(1000°F-1150°F)在逆流过程中被引入卤化物盐的浅层中的结果是导致 金属卤化物变成金属硫酸盐和卤化物气体。 该方法在一系列真正的流化床中进行,优选但不必须以垂直形式布置,使得固体由于流化过程而向下流动,并且二氧化硫或三氧化硫气体当前向上流动,产生纯金属硫酸盐 在底部和纯的卤化物气体在顶部。