利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

23 条记录 (耗时 0.026 秒)

    Method for producing magnesium borate overbased metallic detergent and to a hydrocarbon composition containing said detergent
    1.
    发明授权
    Method for producing magnesium borate overbased metallic detergent and to a hydrocarbon composition containing said detergent 失效
    制备硼酸镁高碱性金属洗涤剂的方法和含有所述洗涤剂的烃组合物

    公开(公告)号：US5854182A

    公开(公告)日：1998-12-29

    申请号：US728052

    申请日：1996-10-09

    申请人： Krishan Kumar Swami ,  Anurag Ateet Gupta ,  Shanti Parkash ,  Madan Mohan Rai ,  Akhilesh Kumar Bhatnagar

    发明人： Krishan Kumar Swami ,  Anurag Ateet Gupta ,  Shanti Parkash ,  Madan Mohan Rai ,  Akhilesh Kumar Bhatnagar

    IPC分类号： C10M159/24

    CPC分类号： C10M159/24

    摘要： Magnesium borate overbased metallic detergent having magnesium borate uniformally dispersed in an extremely fine particle size is prepared by using magnesium alkoxide and boric acid. The process for preparation involves reacting neutral sulphonate of an alkaline earth metal with magnesium alkoxide and boric acid under anhydrous conditions in the presence of a dilution solvent followed by distillation to remove alcohol and part of dilution solvent therefrom. The borated mixture is then cooled, filtered to recover magnesium borated metal detergent. The magnesium borated metal detergent exhibited excellent cleaning and dispersing performance, very good hydrolytic and oxidation stability, good extreme pressure and antiwear properties. Such a detergent can advantageously be used in a hydrocarbon composition.

    摘要翻译： 通过使用烷氧化镁和硼酸制备硼酸镁高碱性金属洗涤剂，其具有均匀分散在极细颗粒中的硼酸镁。 制备方法包括在无水条件下在稀释溶剂存在下使碱土金属的中性磺酸盐与烷氧基镁和硼酸反应，然后蒸馏以除去醇和部分稀释溶剂。 然后将硼酸化的混合物冷却，过滤以回收硼酸镁金属洗涤剂。 镁硼化金属洗涤剂表现出优异的清洗和分散性能，非常好的水解和氧化稳定性，极好的极压和抗磨性能。 这种洗涤剂可以有利地用于烃组合物中。

    Process of preparing multi-functional amino di(alkylcyclohexyl) phosphordithioate additive for lubricant composition from saturated cashew nut shell liquid
    7.
    发明授权
    Process of preparing multi-functional amino di(alkylcyclohexyl) phosphordithioate additive for lubricant composition from saturated cashew nut shell liquid 失效
    从饱和腰果壳液制备润滑剂组合物的多官能氨基二（烷基环己基）磷酸酯添加剂的方法

    公开(公告)号：US06638898B2

    公开(公告)日：2003-10-28

    申请号：US09823688

    申请日：2001-03-30

    申请人： Krishan Kumar Swami ,  Shanti Parkash ,  Rakesh Sarin ,  Deepak Kumar Tuli ,  Akhilesh Kumar Bhatnagar

    发明人： Krishan Kumar Swami ,  Shanti Parkash ,  Rakesh Sarin ,  Deepak Kumar Tuli ,  Akhilesh Kumar Bhatnagar

    IPC分类号： C10M13708

    CPC分类号： C10M137/105 ,  C10M2223/047 ,  C10N2240/10 ,  C10N2240/101 ,  C10N2240/104 ,  C10N2240/106

    摘要： A process for the preparation of multi-functional additive, amino di(alkylcyclohexyl) phosphorodithioate, for use as an additive in a lubricant composition so as to impart improved coefficient of friction, wear reduction, antioxidant and extreme pressure properties, including the steps of (a) hydrogenating distilled technical cashew nut shell liquid with palladium or nickel or platinum catalyst; to fully hydrogenate the olefinic chain and aromatic ring of the precursor; (b) reacting fully hydrogenated technical cashew nut shell liquid with phosphorus pentasulfide to obtain unpolymerized hydrogenated cashew nut shell liquid phosphorodithioic acid, the reaction being carried out at a temperature ranging from 20 to 140° C. ; and (c) condensing the unpolymerized fully saturated cashew nut shell liquid phosphorodithioic acid with at least one amine to obtain the amino di(alkylcyclohexyl) phosphorodithioate. A lubricant containing a major proportion of a material selected from the group consisting of an oil of lubricating viscosity and a grease; and remainder an additive including amino di(alkylcyclohexyl)phosphorodithioate prepared by the foregoing process.

    摘要翻译： 一种用于制备多功能添加剂，氨基二（烷基环己基）二硫代磷酸酯的方法，用作润滑剂组合物中的添加剂，以便赋予改进的摩擦系数，磨损降低，抗氧化和极压性能，包括以下步骤： a）用钯或镍或铂催化剂氢化蒸馏的技术腰果壳液; 完全氢化前体的烯链和芳环; （b）使完全氢化的技术腰果壳液与五硫化二磷反应，得到未聚合的氢化腰果壳液体二硫代磷酸，反应在20-140℃的温度下进行; 和（c）将未聚合的完全饱和的腰果壳液体二硫代磷酸与至少一种胺缩合，得到氨基二（烷基环己基）二硫代磷酸酯。 含有大部分选自润滑粘度油和油脂的材料的润滑剂的润滑剂; 其余为通过上述方法制备的氨基二（烷基环己基）二硫代磷酸酯的添加剂。

    Process for the preparation of aromatic solvent from a dioxane contaminated aromatic stream
    8.
    发明授权
    Process for the preparation of aromatic solvent from a dioxane contaminated aromatic stream 有权
    从二恶烷污染的芳香物流中制备芳香族溶剂的方法

    公开(公告)号：US6090993A

    公开(公告)日：2000-07-18

    申请号：US178581

    申请日：1998-10-26

    申请人： Anurag Ateet Gupta ,  Suresh Kumar Puri ,  Arunagiri Samy ,  Arvind Pratap Singh ,  Biswajit Basu ,  Som Prakash Srivastava ,  Akhilesh Kumar Bhatnagar

    发明人： Anurag Ateet Gupta ,  Suresh Kumar Puri ,  Arunagiri Samy ,  Arvind Pratap Singh ,  Biswajit Basu ,  Som Prakash Srivastava ,  Akhilesh Kumar Bhatnagar

    IPC分类号： C07C7/12 ,  C07C7/13

    CPC分类号： C07C7/12 ,  C07C7/13

    摘要： A process for preparing benzene containing less than 1 ppm (wt) dioxane from an aromatic stream containing benzene which is contaminated with dioxane, the process including providing an aromatic stream containing benzene which is contaminated with dioxane; subjecting the aromatic stream to liquid phase adsorption by contacting an adsorbent contained in at least one column, which adsorbent comprises at least one substance selected from the group consisting of molecular sieves and clay; and recovering benzene containing less than 1 ppm (wt) dioxane. Preferably, the liquid phase adsorption is carried out at a pressure ranging from atmospheric pressure to 20 kg/cm.sup.2 and at a temperature ranging from ambient temperature to 50.degree. C. Preferably, the molecular sieves have a pore size of 10 .ANG.. The process may further include regenerating the adsorbent by passing a flow of nitrogen gas through the adsorbent at a temperature ranging from 200 to 300.degree. C. Alternatively, the process may further include regenerating the adsorbent by heating the adsorbent at a temperature ranging from 200 to 300.degree. C. for a period of time which is effective to regenerate the adsorbent.

    摘要翻译： 由含有被二恶烷污染的苯的芳族物流制备含有少于1ppm（重量）二恶烷的苯的方法，该方法包括提供含有被二恶烷污染的苯的芳族物流; 通过使包含在至少一个塔中的吸附剂接触而使芳族物流进行液相吸附，该吸附剂包含选自分子筛和粘土的至少一种物质; 并回收含有少于1ppm（重量）二恶烷的苯。 优选地，液相吸附在大气压至20kg / cm 2的压力和在环境温度至50℃的温度下进行。优选地，分子筛的孔径为10安。 该方法还可以包括通过在200-300℃的温度范围内使氮气流通过吸附剂来再生吸附剂。或者，该方法还可以包括通过在200至200℃的温度范围内加热吸附剂来再生吸附剂 在300℃下持续一段有效再生吸附剂的时间。