REMOVAL AND RECOVERY OF DYE WASTE FROM EFFLUENTS USING CLAY
    13.
    发明申请
    REMOVAL AND RECOVERY OF DYE WASTE FROM EFFLUENTS USING CLAY 审中-公开
    使用粘土从废液中去除和回收染色废物

    公开(公告)号:US20110017098A1

    公开(公告)日:2011-01-27

    申请号:US12830198

    申请日:2010-07-02

    IPC分类号: C04B14/04 C02F1/42

    摘要: The present invention describes the use of clay (palygorskite) to concurrently remove indigo dye and salts from the wastewater and subsequent conversion of recovery by-products into Maya blue, an organic-inorganic hybrid pigment with applications in the paint and coating industry. The present invention provides an attractive alternative to discharging the untreated effluent into municipal treatment plants or the environment through the production of a secondary commercial product from waste stream through a by-product synergy process.

    摘要翻译: 本发明描述了使用粘土(坡缕石)同时从废水中去除靛蓝染料和盐,随后将回收副产物转化成玛雅蓝,这是在涂料和涂料工业中应用的有机 - 无机混合颜料。 本发明提供了一种有吸引力的替代方案,其通过从废物流通过副产物协同过程生产次级商业产品将未经处理的流出物排放到市政处理厂或环境中。

    Catalytic processes
    15.
    发明授权
    Catalytic processes 失效
    催化工艺

    公开(公告)号:US5186818A

    公开(公告)日:1993-02-16

    申请号:US743957

    申请日:1991-08-12

    CPC分类号: C10G45/72 C10G45/02

    摘要: The hydrotreating of petroleum feedstock is improved by using a layered transition metal catalyst, a mixture of such catalysts or a stocked bed of transition metal catalysts that has a selected ratio of edge to rim sites sufficient to provide a product having a predetermined sulfur and nitrogen content.In another aspect of the present invention, there is provided a method for selecting a transition metal catalyst system for use in hydrotreating nitrogen and sulfur containing feedstocks to provide a hydrotreated product having a predetermined nitrogen and sulfur content and at a predetermined reaction residence time, which method comprises: selecting the amount of sulfur and nitrogen to be removed from a given feedstock by hydrotreating to obtain a product having a predetermined nitrogen and sulfur content; determining the variation in the reaction kinetics for sulfur and nitrogen removal of the given feedstock by hydrotreating with a transition metal catalyst of varying edge to rim ratios; selecting, for a predetermined reaction residence time, that ratio from the varying edge to rim ratios of the transition metal catalyst that provides the requisite sulfur and nitrogen removal to provide the product of predetermined sulfur and nitrogen content.

    Process for preparing a supported, promoted molybdenum and/or tungsten
sulfide hydroprocessing catalyst
    17.
    发明授权
    Process for preparing a supported, promoted molybdenum and/or tungsten sulfide hydroprocessing catalyst 失效
    制备负载,促进的钼和/或硫化钨加氢催化剂的方法

    公开(公告)号:US4801570A

    公开(公告)日:1989-01-31

    申请号:US008008

    申请日:1987-01-29

    摘要: This invention relates to the preparation and use of supported, manganese sulfide promoted molybdenum and tungsten sulfide catalysts useful for hydroprocessing processes, particularly hydrotreating. These catalysts are prepared by heating a composite of support material and precursor salt under oxygen-free conditions and in the presence of sulfur, wherein said precursor salt contains a thiometallate anion of Mo, W or mixture thereof and a cation comprising one or more promoter metals which are chelated by at least one neutral, nitrogen-containing polydentate ligand, and wherein said promoter metal comprises Mn alone or a mixture of Mn with Co, Ni, Zn, Cu or mixture thereof.

    摘要翻译: 本发明涉及用于加氢处理工艺,特别是加氢处理的负载型硫化锰促进的钼和硫化钨催化剂的制备和用途。 这些催化剂通过在无氧条件和硫存在下加热载体材料和前体盐的复合物而制备,其中所述前体盐含有Mo,W或其混合物的金属硫酸盐阴离子和包含一种或多种助催化剂金属的阳离子 其由至少一种中性的含氮多齿配体螯合,并且其中所述促进剂金属包含单独的Mn或Mn与Co,Ni,Zn,Cu或其混合物的混合物。

    Supported transition metal sulfide promoted molybdenum or tungsten
sulfide catalysts and their uses for hydroprocessing
    18.
    发明授权
    Supported transition metal sulfide promoted molybdenum or tungsten sulfide catalysts and their uses for hydroprocessing 失效
    负载过渡金属硫化物促进了钼或硫化钨催化剂及其在加氢处理中的应用

    公开(公告)号:US4755496A

    公开(公告)日:1988-07-05

    申请号:US44347

    申请日:1987-04-30

    摘要: Hydrocarbon feeds are upgraded by contacting a feed, at elevated temperature and in the presence of hydrogen, with a supported self-promoted catalyst prepared by heating a composite of support material and one or more catalyst precursor salts under oxygen-free conditions and in the presence of sulfur at a temperature of at least about 250.degree. C. The precursor salt or salts will be of the general formula (ML) (Mo.sub.y W.sub.1-y S.sub.4) wherein M comprisess one or more promoter metals selected from the group consisting essentially of Mn, Fe, Co, Ni, Zn and mixtures thereof, wherein y is any value ranging from 0 to 1 and wherein L is one or more neutral, nitrogen-containing ligands at least one of which is a chelating, polydentate ligand.

    摘要翻译: 通过在升高的温度和在氢的存在下使进料接触与在无氧条件下和在存在下加热载体材料和一种或多种催化剂前体盐的复合物而制备的负载型自促进催化剂来提高烃进料 的硫在至少约250℃的温度下。前体盐或盐将具有通式(ML)(MoyW1-yS4),其中M包含一种或多种助催化剂金属,其选自基本上由Mn,Fe ,Co,Ni,Zn及其混合物,其中y是0至1的任何值,并且其中L是一种或多种中性含氮配体,其中至少一种是螯合多齿配体。

    Carbon-containing molybdenum and tungsten sulfide catalysts
    20.
    发明授权
    Carbon-containing molybdenum and tungsten sulfide catalysts 失效
    含碳钼和硫化钨催化剂

    公开(公告)号:US4508847A

    公开(公告)日:1985-04-02

    申请号:US552404

    申请日:1983-11-16

    CPC分类号: B01J27/20 B01J27/24 C10G45/04

    摘要: Catalysts comprising a carbon-containing sulfide of molybdenum or tungsten are prepared by contacting, in the presence of sulfur, hydrogen and a hydrocarbon, ammonia and ammonium substituted molybdate, thiomolybdate, tungstate and thiotungstate salts at a temperature of from about 200.degree.-600.degree. C. These catalysts are useful for hydrotreating reactions. In a preferred embodiment, these catalysts will be promoted with certain transition metal sulfides, such as cobalt sulfide, which results in catalysts having greater activity than conventional catalysts such as cobaltmolybdate on alumina.

    摘要翻译: 包含钼或钨的含碳硫化物的催化剂通过在硫,氢和烃,氨和铵取代的钼酸盐,硫钼酸盐,钨酸盐和硫代钨酸盐的存在下,在约200-600℃的温度下接触来制备 这些催化剂可用于加氢处理反应。 在优选的实施方案中,这些催化剂将被某些过渡金属硫化物如硫化钴促进,这导致催化剂比常规催化剂如氧化铝上的钼酸钼具有更大的活性。