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33 条记录 (耗时 0.017 秒)

    Process for regenerating spent bleaching earth
    1.
    发明授权
    Process for regenerating spent bleaching earth 失效
    废弃漂白土再生过程

    公开(公告)号：US5256613A

    公开(公告)日：1993-10-26

    申请号：US935975

    申请日：1992-08-27

    申请人： Pieter J. A. Maes ,  Albert J. Dijkstra

    发明人： Pieter J. A. Maes ,  Albert J. Dijkstra

    IPC分类号： B01J20/12 ,  B01J20/34 ,  C10G25/12 ,  C11B3/10 ,  C11B13/04 ,  B01J38/30 ,  B01J38/38

    CPC分类号： B01J20/12 ,  B01J20/3433 ,  B01J20/3458 ,  B01J20/3483 ,  B01J2220/56

    摘要： The present invention relates to a process for the regeneration of spent bleaching earth, comprising an oxidative heat treatment in which the amount of oxygen supplied exceeds the stoichiometrical requirement of complete oxidation of all organics present in the spent bleaching earth, wherein the spent bleaching earth and the oxygen are blown through a stationary fluidized bed of inert granulate material. The stationary fluidized bed should be as high as to limit the temperature in the freeboard to less than 1000.degree. C. As a matter of fact, it has been found that, if the fluidized bed is not high enough, the oxygen required to burn off the organics content of the spent bleaching earth would blow out the powdered bleaching earth from the bed at the stage of incomplete oxidation of the organics present on the earth, resulting in an uncontrolled temperature rise in the freeboard and local overheating of the bleaching earth.

    Recovery of domestic oil from spent clay
    2.
    发明授权
    Recovery of domestic oil from spent clay 失效
    从废粘土回收家用油

    公开(公告)号：US4110356A

    公开(公告)日：1978-08-29

    申请号：US831958

    申请日：1977-09-09

    申请人： Allan S. Hodgson ,  Jerry F. P. Red

    发明人： Allan S. Hodgson ,  Jerry F. P. Red

    IPC分类号： C11B13/04

    CPC分类号： C11B13/04 ,  Y02W30/74

    摘要： Spent clay from the bleaching of C.sub.18+ domestic glyceride esters ("oils") is deoiled by slurrying such spent clay with aqueous alkali at a temperature of at least about 80.degree. C. and a weight ratio of water to clay of about 2-6:1 at a high "pH window" for such oil recovery.

    摘要翻译： 通过在至少约80℃的温度和水与粘土的重量比为约2-6：5的温度下将这种废弃的粘土与碱性水溶液浆化，来消除C18 +家用甘油酯（“油”）漂白的废粘土。 1在高“pH窗口”用于这种油回收。

    Dry fractionation method for oil or fat
    6.
    发明授权
    Dry fractionation method for oil or fat 有权
    油或脂肪的干分馏方法

    公开(公告)号：US08772518B2

    公开(公告)日：2014-07-08

    申请号：US13995680

    申请日：2011-12-19

    申请人： Kenji Murai ,  Kazuhisa Ogawa ,  Shin Yoneda

    发明人： Kenji Murai ,  Kazuhisa Ogawa ,  Shin Yoneda

    IPC分类号： C07C51/43 ,  C11B13/04

    CPC分类号： C11B7/0083 ,  A23D9/007 ,  C11B3/008 ,  C11B7/0075

    摘要： The purpose of the present invention is to provide a method, whereby, in the dry fractionation of an oil or fat, a decrease in solid-liquid separation efficiency, said decrease being caused by the engulfment of a filtrate fraction into a crystal fraction after crystallization and press filtration, can be prevented and thus the crystal slurry can be efficiently separated after the crystallization. A method for the dry fractionation of an oil or fat, said method comprising, before or after crystallization, adding a definite amount of a filtration aid followed by mixing and then press-filtering the thus obtained crystal slurry. Thus, the crystal slurry can be easily separated into a crystal fraction with little engulfment of a liquid fraction and the liquid fraction.

    摘要翻译： 本发明的目的是提供一种方法，其中在油或脂肪的干分级中，固液分离效率的降低，所述减少是由于滤液部分在结晶之后被吸收到结晶部分中而引起的 并且可以防止压滤，从而可以在结晶后有效地分离晶体浆料。 一种油或脂肪的干馏分离方法，所述方法包括在结晶之前或之后，加入一定量的助滤剂，然后混合，然后对由此得到的晶体浆料进行压滤。 因此，可以容易地将晶体浆料分离成几乎没有液体馏分和液体馏分的流失的结晶部分。

    Method of recovering residual vegetable oil contained in spent bleaching clay and processing the bleaching clay for reuse
    8.
    发明授权
    Method of recovering residual vegetable oil contained in spent bleaching clay and processing the bleaching clay for reuse 失效
    回收废弃漂白泥中含有的残留植物油并处理漂白泥以便再利用的方法

    公开(公告)号：US4285832A

    公开(公告)日：1981-08-25

    申请号：US176990

    申请日：1980-08-11

    申请人： George O. Orth, Jr.

    发明人： George O. Orth, Jr.

    IPC分类号： B01J20/20 ,  C11B13/04 ,  B01J20/30 ,  B01J20/14 ,  B01J20/28

    CPC分类号： C11B13/04 ,  B01J20/20 ,  Y02W30/74

    摘要： A method is disclosed for extracting residual vegetable oil contained in spent bleaching clays used in refining and processing of such oil and for processing the extracted clay for reuse. The spent bleaching clay containing the residual vegetable oil is mixed with water, an organic binder and a plastic clay to form a composition of putty-like consistency which can be formed into particulate solids of suitable size for solvent extraction of the oil. The vegetable oil in the particulate solids is then extracted by solvent extraction with a suitable solvent. The remaining particulate solids with the oil removed may be retorted to produce an activated carbon/clay product useful to lighten the color of the oil being processed, as a filter aid, for water treatment purposes or for other uses where activated carbon is generally used.

    摘要翻译： 公开了一种用于提取用于精炼和加工这种油的废漂白粘土中含有的残余植物油并用于处理提取的粘土以供再利用的方法。 将含有残留植物油的废漂白粘土与水，有机粘合剂和塑料粘土混合以形成油灰状稠度的组合物，其可形成适当尺寸的颗粒固体，用于溶剂萃取油。 然后用合适的溶剂通过溶剂萃取提取颗粒状固体中的植物油。 除去油的剩余颗粒固体可以被蒸馏以产生用于减轻被处理油的颜色的活性炭/粘土产品，作为助滤剂用于水处理目的或用于通常使用活性炭的其它用途。