Cyclohexanedione oxygen scavengers
    1.
    发明授权
    Cyclohexanedione oxygen scavengers 失效
    环己酮氧清除剂

    公开(公告)号:US5512243A

    公开(公告)日:1996-04-30

    申请号:US420270

    申请日:1995-04-11

    申请人: Paul V. Roling

    发明人: Paul V. Roling

    IPC分类号: C02F1/20

    CPC分类号: C02F1/20 C23F11/10

    摘要: An oxygen scavenger for aqueous mediums is disclosed. The oxygen scavengers comprise cyclohexanediones which, when added to basic aqueous solutions, effectively scavenge oxygen from the aqueous solutions. The oxygen scavenger has particular utility as an oxygen scavenger from water in heating systems such as boilers and heat exchangers.

    摘要翻译: 公开了一种用于水性介质的除氧剂。 氧清除剂包括环己二酮,当加入到碱性水溶液中时,有效地从水溶液中清除氧。 氧气清除剂在诸如锅炉和热交换器的加热系统中作为来自水的除氧剂具有特别的用途。

    Methods and compositions for inhibiting (meth)acrylic acid polymerization
    4.
    发明授权
    Methods and compositions for inhibiting (meth)acrylic acid polymerization 失效
    抑制(甲基)丙烯酸聚合的方法和组合物

    公开(公告)号:US5171888A

    公开(公告)日:1992-12-15

    申请号:US690430

    申请日:1991-04-23

    申请人: Paul V. Roling

    发明人: Paul V. Roling

    IPC分类号: C07C51/50

    CPC分类号: C07C51/50

    摘要: Methods and compositions are provided for inhibiting the polymerization of acrylic acid monomers during elevated temperature processing thereof or during storage or shipment of acrylic acid product. The compositions comprise a combination of a Mn source compound and a phenylenediamine compound having at least 1 N--H bond. The methods comprise adding from about 1-10,000 ppm of the combination to the particular acrylic acid containing medium for which such anti-polymerization protection is desired, per million parts of the acrylic acid medium.

    摘要翻译: 提供了用于在高温处理过程中或在丙烯酸产品的储存或运输过程中抑制丙烯酸单体聚合的方法和组合物。 组合物包含Mn源化合物和具有至少1NH-H键的苯二胺化合物的组合。 该方法包括每百万份丙烯酸介质将约1-10,000ppm的组合添加到需要这种抗聚合保护的特定含丙烯酸的培养基中。

    Method and composition for inhibiting acrylate ester polymerization
    5.
    发明授权
    Method and composition for inhibiting acrylate ester polymerization 失效
    抑制丙烯酸酯聚合的方法和组合物

    公开(公告)号:US4797504A

    公开(公告)日:1989-01-10

    申请号:US916267

    申请日:1986-10-07

    申请人: Paul V. Roling

    发明人: Paul V. Roling

    IPC分类号: C07C67/62 C07C69/54

    CPC分类号: C07C67/62

    摘要: This invention relates to compositions and methods of inhibiting acrylate monomer polymerization at elevated temperatures comprising adding to the acrylate monomer an effective amount for the purpose of (a) a hydroxylamine having the formula ##STR1## wherein R and R' are the same or different and are hydrogen, alkyl, aryl, alkaryl or aralkyl groups, and (b) a para-phenylenediamine or derivative thereof having at least one N-H group. Preferably the phenylenediamine is a para-phenylenediamine having the formula ##STR2## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are the same or different and are hydrogen, alkyl, aryl, alkaryl, or aralkyl groups with the proviso that at least one of R.sup.1, R.sup.2, R.sup.3 or R.sup.4 is hydrogen.

    摘要翻译: 本发明涉及在升高的温度下抑制丙烯酸酯单体聚合的组合物和方法,其包括向丙烯酸酯单体添加有效量,目的是(a)具有式“IMAGE”的羟胺,其中R和R'相同或不同, 是氢,烷基,芳基,烷芳基或芳烷基,和(b)具有至少一个NH基团的对苯二胺或其衍生物。 优选地,苯二胺是具有下式的对苯二胺:其中R 1,R 2,R 3和R 4相同或不同,为氢,烷基,芳基,烷芳基或芳烷基,条件是R 1, R2,R3或R4是氢。

    Method for the extraction of iron from liquid hydrocarbons
    6.
    发明授权
    Method for the extraction of iron from liquid hydrocarbons 失效
    从液态烃中提取铁的方法

    公开(公告)号:US5282959A

    公开(公告)日:1994-02-01

    申请号:US851586

    申请日:1992-03-16

    IPC分类号: C10G21/12 C10G17/04

    CPC分类号: C10G21/12

    摘要: A method of extracting iron species from a liquid hydrocarbon medium comprising adding to the medium a composition comprised of an aminocarboxylic acid, methoxypropylamine and a solvent selected from the group consisting of 2-ethylhexanol, cresylic acid, ethylene glycol and hexylene glycol.

    摘要翻译: 从液体烃介质中提取铁物质的方法,包括向该介质中加入由氨基羧酸,甲氧基丙胺和选自2-乙基己醇,甲酚酸,乙二醇和己二醇的溶剂组成的组合物。

    Method for inhibiting fouling in caustic scrubber systems
    7.
    发明授权
    Method for inhibiting fouling in caustic scrubber systems 失效
    抑制苛性碱洗涤系统污染的方法

    公开(公告)号:US5194143A

    公开(公告)日:1993-03-16

    申请号:US793754

    申请日:1991-11-18

    申请人: Paul V. Roling

    发明人: Paul V. Roling

    IPC分类号: C10G70/06

    CPC分类号: C10G70/06 Y10S585/95

    摘要: A method for inhibiting the formation of polymeric based fouling deposits normally formed during the caustic washing to hydrocarbons is disclosed. The method comprises adding an effective amount for the purpose of an acetoacetate ester compound to the caustic wash system.

    摘要翻译: 公开了一种抑制通常在苛性碱洗涤期间形成的聚合物基污垢沉积物形成的方法。 该方法包括将乙酰乙酸酯化合物的有效量添加到苛性碱洗涤系统中。

    Methods of extracting iron species from liquid hydrocarbons
    8.
    发明授权
    Methods of extracting iron species from liquid hydrocarbons 失效
    从液态烃中提取铁物质的方法

    公开(公告)号:US5078858A

    公开(公告)日:1992-01-07

    申请号:US561049

    申请日:1990-08-01

    IPC分类号: C10G21/16 C10G29/22

    CPC分类号: C10G29/22 C10G21/16

    摘要: Methods of extracting iron species, such as iron naphthenate, and iron sulfides, from a liquid hydrocarbon, such as crude oil are disclosed. A chelant selected from oxalic or citric acid is added directly to the liquid hydrocarbon and mixed therewith. Then, wash water is added to form a water in oil emulsion. The emulsion is resolved, with iron laden aqueous phase being separated.

    摘要翻译: 公开了从诸如原油的液体烃中提取铁物质如环烷酸铁和硫化铁的方法。 将选自草酸或柠檬酸的螯合剂直接加入到液体烃中并与其混合。 然后,加入洗涤水以形成油包水乳液。 乳液被分离,含铁的水相被分离。

    Methods and compositions for inhibiting styrene polymerization
    9.
    发明授权
    Methods and compositions for inhibiting styrene polymerization 失效
    抑制苯乙烯聚合的方法和组合物

    公开(公告)号:US4929778A

    公开(公告)日:1990-05-29

    申请号:US361170

    申请日:1989-06-05

    申请人: Paul V. Roling

    发明人: Paul V. Roling

    IPC分类号: C07C7/20

    CPC分类号: C07C7/20

    摘要: Methods and compositions are provided for inhibiting the polymerization of styrene monomer during elevated temperature processing thereof or during storage or shipment of styrene containing product. The compositions comprise a combination of (a) a phenylenediamine compound having at least one N-H bond and (b) a hindered phenol compound. The methods comprise adding from 1-10,000 ppm of the combination to the styrene medium, per one million parts of styrene.

    摘要翻译: 提供了用于在高温处理期间或在含苯乙烯产品的储存或运输期间抑制苯乙烯单体的聚合的方法和组合物。 组合物包含(a)具有至少一个N-H键的苯二胺化合物和(b)受阻酚化合物的组合。 该方法包括每100万份苯乙烯将1-10,000ppm的组合加到苯乙烯介质中。

    Inhibition of pyrophoric iron sulfide activity
    10.
    发明授权
    Inhibition of pyrophoric iron sulfide activity 失效
    抑制自发硫化铁活性

    公开(公告)号:US6063347A

    公开(公告)日:2000-05-16

    申请号:US112883

    申请日:1998-07-09

    IPC分类号: C01B17/16 C09K15/04 C01F17/32

    摘要: Methods for inhibiting pyrophoric iron sulfide activity are disclosed. Methods are disclosed for inhibiting the oxidation of iron sulfide to inhibit pyrophoric activity. The methods comprise contacting iron oxides and/or iron sulfide with a liquid, solution, aerosol, or gaseous inhibitor comprising aromatic hydrocarbons such as alkyl substituted benzenes.

    摘要翻译: 公开了抑制自发性硫化铁活性的方法。 公开了抑制硫化铁氧化以抑制发火活性的方法。 所述方法包括使铁氧化物和/或硫化铁与包含芳族烃如烷基取代的苯的液体,溶液,气溶胶或气态抑制剂接触。