Oil recovery method and apparatus
    71.
    发明授权
    Oil recovery method and apparatus 失效
    采油方法及装置

    公开(公告)号:US5040605A

    公开(公告)日:1991-08-20

    申请号:US546518

    申请日:1990-06-29

    IPC分类号: E21B36/00 E21B36/02

    摘要: A method and apparatus are provided for the recovery of a heavy oil, contained in an outcropping formation, without any significant adverse environmental impact. Broadly, the invention comprises indirectly heating an oil containing formation to reduce the viscosity of the oil therein and concurrently thermally insulating an upper portion of the well, extending into the formation, to eliminate any increased seepage of oil from the formation to the surface.

    摘要翻译: 提供了一种方法和装置,用于回收包含在露头地层中的重油,而没有任何明显的不利环境影响。 广泛地,本发明包括间接加热含油地层以降低其中的油的粘度,并且同时将井的上部隔热延伸到地层中,以消除油从地层到地面的任何增加的渗透。

    Fast cure, zero formaldehyde binder for cellulose
    73.
    发明授权
    Fast cure, zero formaldehyde binder for cellulose 失效
    快速固化,用于纤维素的零甲醛粘合剂

    公开(公告)号:US5028655A

    公开(公告)日:1991-07-02

    申请号:US132923

    申请日:1987-12-15

    申请人: Dennis P. Stack

    发明人: Dennis P. Stack

    IPC分类号: C08L13/02 D04H1/64 D06M15/263

    摘要: Non-formaldehyde emitting binders for nonwoven cellulosic materials comprise a solution copolymer of an olefinically unsaturated organic compound having at least one carboxylate group conjugated with the olefinic linkage, which is reacted with a hydroxyalkyl ester of an olefinically unsaturated carboxylic acid. The product of said reaction is admixed with a non-formaldehyde containing latex carrier to produce a binder composition which will reach substantially fully cured wet strength in 8 seconds or less.

    摘要翻译: 用于非织造纤维素材料的非甲醛发射粘合剂包括具有至少一个与烯键连接的羧酸酯基的烯属不饱和有机化合物与烯属不饱和羧酸的羟烷基酯反应的溶液共聚物。 将所述反应的产物与不含甲醛的胶乳载体混合以产生粘合剂组合物,其在8秒或更短时间内达到基本上完全固化的湿强度。

    Animal feed supplement suspension
    76.
    发明授权
    Animal feed supplement suspension 失效
    动物饲料补充剂悬浮液

    公开(公告)号:US4994284A

    公开(公告)日:1991-02-19

    申请号:US447542

    申请日:1989-12-07

    申请人: Alex E. Miller

    发明人: Alex E. Miller

    摘要: An alkaline supplement for ruminant feeds is a fluid suspension comprising the components: about 20 to about 40 percent by weight water; about 2 to about 10 percent by weight sodium carbonate; about 2 to about 10 percent by weight calcium phosphate; about 10 to about 40 percent by weight molasses; about 5 to about 30 percent by weight limestone; up to about 15 percent by weight urea; up to about 5 percent by weight magnesium oxide; up to about 20 percent by weight dolomite; up to about 30 percent by weight fat; up to about 30 percent by weight protein meal; and a suspending agent.

    摘要翻译: 反刍动物饲料的碱性补充剂是包含组分的流体悬浮液:约20至约40重量%的水; 约2至约10重量%的碳酸钠; 约2至约10重量%的磷酸钙; 约10至约40重量%的糖蜜; 约5至约30重量%的石灰石; 高达约15重量%的尿素; 高达约5重量%的氧化镁; 高达约20%的白云石; 高达约30%的脂肪; 高达约30重量%的蛋白粉; 和悬浮剂。

    Scale removal treatment
    77.
    发明授权
    Scale removal treatment 失效
    除垢处理

    公开(公告)号:US4992182A

    公开(公告)日:1991-02-12

    申请号:US311378

    申请日:1989-02-15

    摘要: A method for treating a subterranean formation, or a well penetrating the formation, comprises injecting into the well an aqueous composition containing an aminopolycarboxylic acid and a water-soluble organosilicon compound. By use of the method, scale is removed from well equipment and/or openings in the formation, and fine particles within the formation are stabilized to prevent their subsequent movement, resulting in increased, more stable fluid flow through the formation and well.

    摘要翻译: 用于处理地层或渗透地层的井的方法包括向井中注入含有氨基多羧酸和水溶性有机硅化合物的含水组合物。 通过使用该方法,从地层中的井设备和/或开口中去除垢,并且地层内的细颗粒被稳定以防止其随后的运动,导致通过地层和井的增加的,更稳定的流体流动。

    Synthesis of hydroxy sulfonic acids
    78.
    发明授权
    Synthesis of hydroxy sulfonic acids 失效
    羟基磺酸的合成

    公开(公告)号:US4987250A

    公开(公告)日:1991-01-22

    申请号:US299728

    申请日:1989-01-19

    IPC分类号: C07C303/16

    CPC分类号: C07C303/16

    摘要: Hydroxy sulfonic acids in general and isethionic acid (2-hydroxy ethyl sulfonic acid) in particular can be prepared at 99+% purity and good yields by the selective oxidation of a precursor hydroxy mercaptan with hydrogen peroxide. The resulting product is pure enough to be used directly in the synthesis of sulfo-acrylic esters which are finding considerable use as stabilizers in producing vinylidene chloride copolymers used for FDA approved packaging films.

    摘要翻译: 通常通过用过氧化氢选择性氧化前体羟基硫醇,通常可以制备羟基磺酸和羟乙磺酸(2-羟基乙基磺酸),其纯度为99 +%,产率高。 所得产物纯度足以直接用于磺基丙烯酸酯的合成中,其在制备用于FDA批准的包装膜的偏二氯乙烯共聚物中被认为可用作稳定剂。

    Attrition resistant cracking catalyst
    79.
    发明授权
    Attrition resistant cracking catalyst 失效
    耐磨裂化催化剂

    公开(公告)号:US4987110A

    公开(公告)日:1991-01-22

    申请号:US359112

    申请日:1989-05-31

    申请人: Julius Scherzer

    发明人: Julius Scherzer

    IPC分类号: B01J29/08 C10G11/05

    CPC分类号: C10G11/05 B01J29/084

    摘要: An attrition resistant catalytic cracking catalyst is prepared by spray drying an aqueous slurry containing a molecular sieve having cracking activity, a clay such as kaolin, a silica sol and aluminum chlorhydroxide. The resultant catalyst has a high attrition resistance as compared to commercially available cracking catalysts.

    摘要翻译: 通过喷雾干燥含有具有裂解活性的分子筛的水性浆料,高岭土等粘土,二氧化硅溶胶和氢氧化铝铝,制备耐磨耗催化裂化催化剂。 与市售的裂化催化剂相比,所得催化剂具有高耐磨性。

    Method of filtering a brine
    80.
    发明授权
    Method of filtering a brine 失效
    过滤盐水的方法

    公开(公告)号:US4978457A

    公开(公告)日:1990-12-18

    申请号:US485123

    申请日:1990-02-26

    IPC分类号: C02F1/72

    CPC分类号: C02F1/72

    摘要: Condensate of steam derived from a geothermal brine is treated to enhance its utility as wash water for a brine filter. The condensate is sprayed into a tank in the presence of air to effect substantial oxidation of oxidizable sulfur species contained therein, and the pH of the condensate is adjusted to be within about 1.0 pH units of the pH of the brine. Such treatment substantially extends the life of the filter media used in the brine filter.

    摘要翻译: 处理来自地热盐水的蒸汽冷凝物,以提高其作为盐水过滤器的洗涤水的效用。 在空气存在下将冷凝物喷入罐中,以使其中所含的可氧化硫物质实质上氧化,并将冷凝物的pH调节至盐水pH值的约1.0 pH单位内。 这种处理基本上延长了在盐水过滤器中使用的过滤介质的寿命。