Corrosion probe for use in measuring corrosion rate under specified heat
transfer conditions
    2.
    发明授权
    Corrosion probe for use in measuring corrosion rate under specified heat transfer conditions 失效
    腐蚀探头用于在特定传热条件下测量腐蚀速率

    公开(公告)号:US4098662A

    公开(公告)日:1978-07-04

    申请号:US644201

    申请日:1975-12-24

    IPC分类号: G01N17/00 G01N25/18 G01N27/46

    CPC分类号: G01N17/00 G01N25/18

    摘要: A corrosion probe assembly for use in measuring corrosion and deposition rates for test specimens in corrodant electrolyte solutions is disclosed. The probe is designed for versatility, simplicity of construction, and serviceability and comprises a heated (hot) test specimen and, preferably, an unheated (cold) test specimen. Thus, the effects of heat load on the corrosion rates and on the deposition rates on various metallic surfaces can be readily determined. By sensing the inside temperature of the hot test specimen and the corrodant temperature, the heat transfer coefficient across the hot test specimen can readily be measured.

    摘要翻译: 公开了一种用于测量腐蚀电解质溶液中测试样品的腐蚀和沉积速率的腐蚀探测器组件。 该探针设计用于多功能性,简单的结构和可使用性,并且包括加热(热)试样,优选未加热(冷)试样。 因此,可以容易地确定热负荷对各种金属表面的腐蚀速率和沉积速率的影响。 通过检测热试样的内部温度和腐蚀温度,可以容易地测量热试样上的传热系数。

    Chromate reduction in aqueous medium
    3.
    发明授权
    Chromate reduction in aqueous medium 失效
    水性介质中的铬酸盐还原

    公开(公告)号:US4033867A

    公开(公告)日:1977-07-05

    申请号:US627629

    申请日:1975-10-31

    IPC分类号: C02F9/00 C02C5/02

    CPC分类号: C02F1/725 C02F2101/22

    摘要: A method for reducing the residual chromate level in effluent waters comprising catalytic reduction of the chromate ion by hydrogen to the trivalent chromium state and removal of the chromium by passage through a cation exchange resin column or by base precipitation in a settling pond.

    摘要翻译: 一种用于降低流出水中残留铬酸盐含量的方法,其包括用氢将铬酸根离子还原为三价铬状态,并通过阳离子交换树脂柱除去铬或通过沉淀池中的碱沉淀除去铬。

    Micellar process for preparing hydrophobically functionalized cationic
polymers (C-2114)
    6.
    发明授权
    Micellar process for preparing hydrophobically functionalized cationic polymers (C-2114) 失效
    制备疏水官能化阳离子聚合物的胶束方法(C-2114)

    公开(公告)号:US4831092A

    公开(公告)日:1989-05-16

    申请号:US54027

    申请日:1987-05-26

    摘要: This invention provides a process for preparing novel hydrophobically associating terpolymers containing cationic functionality which are useful for clean-up of waste waters containing organic contaminants. These water soluble polymers contain both water soluble and water insoluble monomers. The water soluble monomers are acrylamide (AM) and a salt of an unsaturated amine base (C) and the water insoluble monomer is a higher alkyl(meth)acrylamide or alkyl(meth)acrylate (R). These polymers are referred to as CRAM. The process for their preparation relies on solubilizing the water insoluble monomer into an aqueous micellar solution containing one or more surfactants and the water soluble monomers. The surfactants are specifically selected to enable homogeneous dispersion of the hydrophobic monomer(s) in the presence of cationic monomers, such as 3-methacrylamidopropyltrimethylammonium chloride (MAPTAC), 2-methylacrylatoethyltrimethylammonium chloride (METAC), or diallyl dimethylammonium chloride (DMDAAC). Redox or free radical initiators are used to copolymerize both the water soluble and water insoluble monomers forming terpolymers of ethylenically unsaturated amine base salts, alkyl(meth)acrylamides or alkyl(meth)acrylates and acrylamide. These polymers provide exceptional clean-up of waste waters containing organic contaminants. Also, they are very effective for resolving oil-in-water emulsions, such as those found in oil production.

    摘要翻译: 本发明提供了一种制备新颖的含有阳离子官能团的疏水缔合三元共聚物的方法,其可用于清除含有机污染物的废水。 这些水溶性聚合物含有水溶性和水不溶性单体。 水溶性单体是丙烯酰胺(AM)和不饱和胺碱(C)的盐,水不溶性单体是高级烷基(甲基)丙烯酰胺或(甲基)丙烯酸烷基酯(R)。 这些聚合物被称为CRAM。 其制备方法依赖于将水不溶性单体溶解到含有一种或多种表面活性剂和水溶性单体的水性胶束溶液中。 特别选择表面活性剂以使阳离子单体如3-甲基丙烯酰胺基丙基三甲基氯化铵(MAPTAC),2-甲基丙烯酰基乙基三甲基氯化铵(METAC)或二烯丙基二甲基氯化铵(DMDAAC)的存在下均匀分散疏水性单体。 氧化还原或自由基引发剂用于共聚形成烯键式不饱和胺碱盐,(甲基)丙烯酸烷基酯或(甲基)丙烯酸烷基酯和丙烯酰胺的三元共聚物的水溶性和水不溶性单体。 这些聚合物可以清除含有机污染物的废水。 此外,它们非常有效地解决水包油乳液,例如在石油生产中发现的那些。

    Measuring corrosion rate under specified heat transfer conditions
    7.
    发明授权
    Measuring corrosion rate under specified heat transfer conditions 失效
    在规定的传热条件下测量腐蚀速率

    公开(公告)号:US4097341A

    公开(公告)日:1978-06-27

    申请号:US774723

    申请日:1977-03-07

    IPC分类号: G01N17/00 G01N25/18 G01N27/46

    CPC分类号: G01N17/00 G01N25/18

    摘要: A corrosion probe assembly for use in measuring corrosion and deposition rates for test specimens in corrodant electrolyte solutions is disclosed. The probe is designed for versatility, simplicity of construction, and serviceability and comprises a heated (hot) test specimen and, preferably, an unheated (cold) test specimen. Thus, the effects of heat load on the corrosion rates and on the deposition rates on various metallic surfaces can be readily determined. By sensing the inside temperature of the hot test specimen and the corrodant temperature, the heat transfer coefficient across the hot test specimen can readily be measured.

    摘要翻译: 公开了一种用于测量腐蚀电解质溶液中测试样品的腐蚀和沉积速率的腐蚀探测器组件。 该探针设计用于多功能性,简单的结构和可使用性,并且包括加热(热)试样,优选未加热(冷)试样。 因此,可以容易地确定热负荷对各种金属表面的腐蚀速率和沉积速率的影响。 通过检测热试样的内部温度和腐蚀温度,可以容易地测量热试样上的传热系数。

    Hydrophobically functionalized cationic polymers
    8.
    发明授权
    Hydrophobically functionalized cationic polymers 失效
    疏水官能化阳离子聚合物

    公开(公告)号:US4835234A

    公开(公告)日:1989-05-30

    申请号:US54382

    申请日:1987-05-26

    摘要: Novel hydrophobically associating terpolymer compositions containing cationic functionality are described. These water soluble or water dispersible polymers contain both water soluble and water insoluble monomers. The water soluble monomers are ethylenically unsaturated nonionic monomers, such as acrylamide (AM), and cationic monomers, such as a salt of an amine base (C), such as 3-methacrylamidopropyltrimethylammonium chloride (MAPTAC), 2-methacrylatoethyltrimethylammonium chloride (METAC) and diallyldimethylammonium chloride (DMDAAC). The hydrophobic or water insoluble monomer is a higher alkyl(meth)acrylamide or alkyl (meth)acrylate (R). These polymers are referred to as CRAM. While the novel compositions of this invention impart unusual properties to water based fluids, they are extremely efficient for clean-up of waste waters containing organic contaminants and for breaking oil-in-water emulsions.

    摘要翻译: 描述了含有阳离子官能团的新型疏水缔合三元共聚物组合物。 这些水溶性或水分散性聚合物含有水溶性和水不溶性单体。 水溶性单体是烯键式不饱和非离子单体,如丙烯酰胺(AM)和阳离子单体,如胺碱(C)的盐,如3-甲基丙烯酰胺基丙基三甲基氯化铵(MAPTAC),2-甲基丙烯酰基乙基三甲基氯化铵(METAC) 和二烯丙基二甲基氯化铵(DMDAAC)。 疏水或不溶于水的单体是高级烷基(甲基)丙烯酰胺或(甲基)丙烯酸烷基酯(R)。 这些聚合物被称为CRAM。 虽然本发明的新型组合物赋予水基流体不寻常的性质,但是它们对于清除含有机污染物的废水和用于破坏水包油乳液是非常有效的。

    Hydrophobically associating polymers for oily water clean-up
    10.
    发明授权
    Hydrophobically associating polymers for oily water clean-up 失效
    疏水缔合聚合物,用于油性水清洗

    公开(公告)号:US4734205A

    公开(公告)日:1988-03-29

    申请号:US905073

    申请日:1986-09-08

    IPC分类号: B01D17/04 C02F1/54 C02F1/56

    CPC分类号: B01D17/047 C02F1/54

    摘要: The present invention teaches an improved process for clean-up of waste waters containing organic contaminants. In addition, the process is useful for breaking or resolving oil-in-water emulsions, such as those produced during oil recovery operations. Both the extent of clean-up based on residual oil left in the waste water and the efficiency of clean-up based on the treat rate of additive have been found to be significantly improved using the novel process of this invention. The novel process involves the use of a low level of a water dispersible terpolymer consisting of acrylamide, acrylic acid or its salts, and alkylacrylamide or alkylacrylate or alkylmethacrylate; or copolymers consisting of acrylamide and alkylacrylamide or alkylacrylate or alkylmethacrylate alone or in combination with a cationic species used to control the charge, usually negative charge reduction to near neutral, of the oil or organic contamination droplets in the emulsion being treated. The process of this invention is effective for the clean-up of waste waters containing organic contaminants and for the breaking of oil-in-water produced emulsions.

    摘要翻译: 本发明教导了一种用于清理含有有机污染物的废水的改进方法。 此外,该方法可用于破坏或分解水包油乳液,例如在油回收操作期间产生的那些。 已经发现使用本发明的新方法,基于废水中残留的油的净化程度和基于添加剂的处理速率的净化效率都得到了显着改善。 该新方法涉及使用低水平的由丙烯酰胺,丙烯酸或其盐和烷基丙烯酰胺或丙烯酸烷基酯或甲基丙烯酸烷基酯组成的水分散性三元共聚物; 或由丙烯酰胺和烷基丙烯酰胺或丙烯酸烷基酯或甲基丙烯酸烷基酯单独或与用于控制待处理的乳液中的油或有机污染液滴的电荷(通常为负电荷减少到接近中性)组合的共聚物。 本发明的方法对于清除含有机污染物的废水和用于水包油的乳液的破坏是有效的。