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21 条记录 (耗时 0.026 秒)

    Catalytic dewaxing process employing surface acidity deactivated zeolite catalysts
    6.
    发明授权
    Catalytic dewaxing process employing surface acidity deactivated zeolite catalysts 失效
    催化脱蜡工艺采用表面酸性失活沸石催化剂

    公开(公告)号：US5015361A

    公开(公告)日：1991-05-14

    申请号：US299905

    申请日：1989-01-23

    申请人： Robert J. Anthes ,  Ross A. Kremer

    发明人： Robert J. Anthes ,  Ross A. Kremer

    IPC分类号： B01J29/74 ,  C10G45/64

    CPC分类号： B01J29/068 ,  B01J29/7046 ,  B01J29/7492 ,  C10G45/64 ,  B01J2229/123 ,  B01J2229/34 ,  B01J2229/42

    摘要： Catalytic dewaxing of a waxy component-containing hydrocarbon feed is accomplished with improved selectivity employing, as catalyst, a zeolite the surface acid catalytic activity of which has been at least partially reduced by chemisorption of a surface-deactivating agent such as a bulky amine thereon. The invention is especially useful for the hydrodewaxing of a waxy lube range product to provide a high viscosity index, low pour point, low cloud point lubricating oil product.

    摘要翻译： 含有蜡组分的烃进料的催化脱蜡是通过改进的选择性来实现的，所述选择性使用作为催化剂的沸石，其表面酸催化活性已通过化学吸附表面活性剂如其中大体积胺而被部分还原。 本发明特别可用于蜡状润滑油产品的加氢脱蜡以提供高粘度指数，低倾点，低浊点润滑油产品。

    Treatment of water used in preparing phosphate matrix slurries
    7.
    发明授权
    Treatment of water used in preparing phosphate matrix slurries 失效
    处理用于制备磷酸盐基质浆料的水

    公开(公告)号：US4585629A

    公开(公告)日：1986-04-29

    申请号：US649235

    申请日：1984-09-10

    申请人： Ross A. Kremer ,  Stephen W. Saunders

    发明人： Ross A. Kremer ,  Stephen W. Saunders

    IPC分类号： B03B1/04 ,  C01F11/00

    CPC分类号： B03B1/04

    摘要： There are disclosed method and compositions for reducing the viscosity of phosphate matrix slurries and improving consolidation characteristics of slimes resulting from the beneficiation of the slurries. An unexpectedly greater degree of viscosity reduction and clay consolidation characteristics improvement is obtained by adding the compositions to the water utilized to slurry the phosphate matrix prior to the information of the slurries. The compositions include water-soluble compounds, such as organic acids, mineral acids, monovalent inorganic salts and polyvalent inorganic salts.

    摘要翻译： 公开了用于降低磷酸盐基质浆料的粘度的方法和组合物，并且改善由浆料的选择产生的泥浆的固结特性。 通过在浆料的信息之前将组合物加入到用于浆料磷酸盐基质的水中，可以获得意想不到的更大程度的粘度降低和粘土固结特性的改善。 组合物包括水溶性化合物，例如有机酸，无机酸，一价无机盐和多价无机盐。

    Method for beneficiating ores
    9.
    发明授权
    Method for beneficiating ores 失效
    矿石选矿方法

    公开(公告)号：US4532033A

    公开(公告)日：1985-07-30

    申请号：US612176

    申请日：1984-05-21

    申请人： Robert J. Anthes ,  Ross A. Kremer

    发明人： Robert J. Anthes ,  Ross A. Kremer

    IPC分类号： B03D1/02 ,  B03D1/14

    CPC分类号： B03D1/021

    摘要： In conventional froth floatation procedures for phosphate flotation, the feed is conditioned, diluted and floated. By lowering the pH with acid after the conditioning step, but before flotation, to a pH of from about 6.4 to about 7.0, one can improve phosphate selectivity.

    摘要翻译： 在用于磷酸盐浮选的常规泡沫漂浮方法中，进料被调节，稀释和漂浮。 通过在调节步骤之后但在浮选之前用酸降低pH至约6.4至约7.0的pH，可以提高磷酸盐选择性。

    Vapor phase dechlorination process
    10.
    发明授权
    Vapor phase dechlorination process 失效
    气相脱氯工艺

    公开(公告)号：US4341899A

    公开(公告)日：1982-07-27

    申请号：US118174

    申请日：1980-02-04

    申请人： Ross A. Kremer ,  Leopoldo C. Mansueto, Jr.

    发明人： Ross A. Kremer ,  Leopoldo C. Mansueto, Jr.

    IPC分类号： C07C69/78

    CPC分类号： C07C69/78

    摘要： This invention provides a selective dechlorination process that comprises contacting a vaporized mixture of methyl 2,5-dichlorobenzoate and hydrogen, in a molar ratio respectively of 1:3-4, optionally together with between about 1% and about 10% of methanol by weight of methyl 2,5-dichlorobenzoate with a nickel catalyst at a temperature between about 200.degree. C. and about 300.degree. C. and for a residence time of between about 2.0 seconds and about 5.0 seconds.

    摘要翻译： 本发明提供一种选择性脱氯方法，其包括使摩尔比为1：3-4，任选地与约1％至约10％甲醇的摩尔比的2,5-二氯苯甲酸甲酯和氢气的蒸发混合物 的2,5-二氯苯甲酸甲酯与镍催化剂在约200℃至约300℃之间的温度下进行，停留时间为约2.0秒至约5.0秒。