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    • 94. 发明授权
    • System for liquid extraction, and methods
    • 液体提取系统及方法
    • US08323500B2
    • 2012-12-04
    • US12979181
    • 2010-12-27
    • Robert A. WillsJames A. Faulconbridge
    • Robert A. WillsJames A. Faulconbridge
    • C02F1/00F26B3/00
    • F26B5/005B01D11/0223B01D11/0257B01D11/028B01D11/0284B01D11/0426B01D11/0488B01D11/0492
    • A process for removing water from solid material using liquid-solid extraction and liquid-liquid extraction. In most embodiments, multiple solvents are used to step-wise remove the water from the solids and obtain dry solids. Multiple solvents facilitate the removal of the water from the solids, by step-wise replacing the water with a solvent, replacing that solvent with a different solvent, and then eventually removing the second solvent from the solids. The process utilizes a lesser amount of thermal energy to dry the solids and separate the solvents than conventionally used in drying processes. The first solvent selected has a lower heat of vaporization, enthalphy of vaporization, boiling point, or other such physical property, than water. Each subsequent solvent has a still lower heat of vaporization, enthalphy of vaporization, boiling point, or other such physical property then its predecessor.
    • 一种使用液 - 固萃取和液 - 液萃取从固体物料中除去水分的方法。 在大多数实施方案中,使用多种溶剂逐步从固体中除去水并获得干固体。 多个溶剂有助于从固体中去除水,通过用溶剂逐步取代水,用不同的溶剂代替该溶剂,然后最终从固体中除去第二溶剂。 该方法使用较少量的热能来干燥固体并分离出干燥过程中常规使用的溶剂。 选择的第一种溶剂比水具有较低的蒸发热,汽化热,沸点或其它此类物理性质。 每个后续溶剂的蒸发,蒸发焓,沸点,或其他前所未有的物理性能仍然较低。
    • 96. 发明授权
    • Method and apparatus for treating ground roasted coffee
    • US5399370A
    • 1995-03-21
    • US057905
    • 1993-05-07
    • Sheng H. Hsu
    • Sheng H. Hsu
    • A23F5/26B01D11/02B01D35/02B01F7/18
    • A23F5/262A23F5/265B01D11/0257B01F7/186
    • A method and apparatus for the continuous countercurrent treatment of roast and ground coffee particles in which a bed of the coffee particles is suspended in an aqueous liquid and the suspended bed is agitated in a manner which facilitates removal of evolved coffee gases from the bed to thereby effect complete, uniform wetting and/or extraction of the coffee grounds. The apparatus comprises a tank in which water flows upward from the bottom and is removed from the top of the tank, with fresh coffee grounds being fed onto the liquid at the top of the tank. Two pairs of interleaved blade assemblies are mounted in the tank for relatively counter rotation to submerge coffee particles into the aqueous liquid and form a bed of suspended coffee particles. A submerging auger, mounted on a central shaft in the tank, facilitates submerging the coffee grounds in the liquid. Both pairs of blade assemblies, which are arranged one above the other, have a set of downwardly extending blade members and an opposed set of upwardly extending blade members interleaved with the downwardly extending blades. One of the sets of blade members in each pair is stationary and the other set of blade members is mounted for rotation on the central shaft. Rotation of the rotatable set of blade members through the suspended bed removes evolved coffee gases from the surface of the coffee particles and creates dynamic vertical channels in the suspended bed of coffee particles permitting the escape of evolved coffee gases and providing paths for wetted coffee particles to settle through the suspended bed. A screw conveyor is mounted on the side of the tank at the base of the suspended bed at a desired to remove grounds from the base of the suspended bed and thereby control the height of the bed in the tank. Coffee grounds which settle to the bottom of the tank are removed by suitable means. The operation of the tank may be controlled to fully and uniformly wet coffee particles which are recovered for use in a coffee extraction operation, or to also extract soluble solids from the coffee particles in the tank.
    • 97. 发明授权
    • Extraction process to remove PCBs from soil and sludge
    • 从土壤和泥沙中去除PCBS的萃取过程
    • US5055196A
    • 1991-10-08
    • US289219
    • 1988-12-22
    • Saeed T. DarianStephen P. Weinberg
    • Saeed T. DarianStephen P. Weinberg
    • B01D11/02B09C1/02B09C1/08C02F11/00C10G1/04
    • C10G1/04B01D11/0257B09C1/02Y10S210/909
    • This invention relates to a process for treating soil and sludge for removal of contaminants in contact with the soil or sludge. More particularly, this invention relates to a process where contaminants such as inorganic contaminants such as metal or metal salts or organic contaminants such as PCBs are removed from water-wet soil and sludge. In particular, this invention relates to a process for treating or cleaning a contaminated water-wet solid containing mixture by contacting the contaminated water-wet mixture with a solvent, the solvent containing a comminuting surfactant. The solvent used is a solvent for the contaminant and is sparingly soluble in water. The purpose of adding a comminuting surfactant to the solvent is to form a dispersed mixture of the solids, contaminants, and water whereby the contaminants are extractable into the solvent. The solvent containing the contaminants is easily separated from the solids and then the solvents and contaminants are separated and the solvent is reused. The solvent is preferably a hydrocarbon solvent containing a comminuting surfactant.
    • 本发明涉及一种处理土壤和污泥以去除与土壤或污泥接触的污染物的方法。 更具体地说,本发明涉及污染物如金属或金属盐等无机污染物或PCB等有机污染物从水湿土壤和污泥中去除的方法。 特别地,本发明涉及通过使污染的水 - 湿混合物与溶剂接触来处理或清洗受污染的含水湿固体的混合物的方法,所述溶剂含有粉碎表面活性剂。 使用的溶剂是污染物的溶剂,并且微溶于水。 将粉碎表面活性剂加入到溶剂中的目的是形成固体,污染物和水的分散混合物,由此污染物可以提取到溶剂中。 含有污染物的溶剂容易与固体分离,然后分离溶剂和污染物,并重新使用溶剂。 溶剂优选为含有粉碎性表面活性剂的烃溶剂。
    • 98. 发明授权
    • Parallel plate extractor system and method for using same
    • 平行板提取系统及其使用方法
    • US4747948A
    • 1988-05-31
    • US942671
    • 1986-12-17
    • Darryl L. North
    • Darryl L. North
    • B01D11/02B01D11/04B01D11/00B01D21/02
    • B01D11/0257B01D11/0453
    • An improved extraction apparatus comprises (a) an elongated trough-like vessel; (b) first and second inlets for introducing relatively heavy and light materials, respectively, into the vessel; (c) first and second outlets for removing relatively light and heavy materials, respectively, from the vessel; (d) a plurality of horizontally spaced parallel plate assemblies located in the vessel to provide for material separation based on material density and to provide the relatively light and heavy materials to be removed from the vessel; and (e) a plurality of agitation devices, at least one device being located in each space between the parallel plate assemblies to facilitate contact between the materials present in the space.Improved methods for extraction are also disclosed.
    • 一种改进的提取装置包括(a)细长的槽状容器; (b)第一和第二入口分别将相当重和轻的材料引入该容器; (c)第一和第二出口,分别从容器中取出相对较轻和重的材料; (d)位于容器中的多个水平间隔开的平行板组件,以提供基于材料密度的材料分离并提供要从容器中取出的相对较轻和重的材料; 和(e)多个搅拌装置,至少一个装置位于平行板组件之间的每个空间中,以便于存在于该空间中的材料之间的接触。 还公开了改进的提取方法。