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。

公开(公告)号：US5000840A

公开(公告)日：1991-03-19

申请号：US299856

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： C10G69/12

CPC分类号： C10G69/126 ,  C10G2400/10

摘要： A waxy component-containing lubricating oil stock derived from the multi-stage catalytic oligomerization of a lower olefin such as propylene is subjected to selective catalytic hydrodewaxing in the presence of certain acidic zeolites, e.g., H-ZSM-23 and H-ZSM-35, preferably associated with a hydrogenation component such as platinum, palladium or zinc, to provide a high viscosity, low pour point lubricating oil product.

摘要翻译： 在一些酸性沸石（例如H-ZSM-23和H-ZSM-35）的存在下，将衍生自低级烯烃如丙烯的多级催化低聚的含蜡组分的润滑油原料进行选择性催化加氢脱蜡 ，优选与氢化组分如铂，钯或锌相连，以提供高粘度，低倾点的润滑油产品。

公开(公告)号：US4851036A

公开(公告)日：1989-07-25

申请号：US98337

申请日：1987-09-18

申请人： Robert J. Anthes ,  Ross A. Kremer ,  Susanne Von Rosenberg

发明人： Robert J. Anthes ,  Ross A. Kremer ,  Susanne Von Rosenberg

IPC分类号： B03D1/001 ,  B03D1/02 ,  B03D1/24

CPC分类号： B03D1/1456 ,  B03D1/006 ,  B03D1/008 ,  B03D1/02 ,  B03D1/021 ,  B03D1/082 ,  B03D1/1481 ,  B03D1/245 ,  B03D2203/06

摘要： There is disclosed a process and an apparatus for beneficiating a mineral ore, such as phosphate-containing ore, in a substantially vertical column. The feed subjected to the benefication preferably has a particle size of less than 20 mesh. The feed is introduced into the column, containing at least one baffle, into which there is also introduced a gas at the bottom portion thereof and a liquid through at least one column inlet at the top of the column. The baffle and the rates of introduction of the feed, the gas, and the liquid are such as to create relatively high turbulence conditions within the column. The enriched, beneficiated product is removed at the top of the column, while the waste products, such as silica-containing material, in the case of a phosphate ore, are recovered at the bottom of the column. The column is either used as a single step flotation apparatus to recover mineral ore, or, preferably, as an apparatus of a multi-step flotation process wherein the rougher flotation step is carried out in the column and a subsequent cleaner flotation step in a conventional flotation apparatus, e.g., a Denver Flotation Cell.

摘要翻译： 公开了一种用于在基本垂直的塔中选矿矿物如含磷矿的矿石的方法和装置。 受益的进料优选具有小于20目的粒度。 将进料引入塔中，其至少包含一个挡板，其中还在其底部引入气体，并通过柱顶部的至少一个塔入口进入液体。 挡板和进料，气体和液体的引入速率使得在塔内产生相对较高的湍流条件。 富集的精选产物在塔顶部被除去，而在磷酸盐矿石的情况下，诸如含二氧化硅的材料的废产物在塔的底部被回收。 该柱用作单步浮选装置以回收矿石，或者优选地，作为多步浮选方法的装置，其中粗塔浮选步骤在柱中进行，随后的清洁剂浮选步骤在常规 浮选装置，例如丹佛浮选池。

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。