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    • 1. 发明授权
    • Phenate product and process
    • 苯甲酸产品和工艺
    • US4664824A
    • 1987-05-12
    • US818862
    • 1986-01-14
    • Yuehsiung ChangLarry C. Satek
    • Yuehsiung ChangLarry C. Satek
    • C10M159/22C10N10/04C10N30/00C10N30/04C10N30/18C10N40/25C10N70/00C10M129/00
    • C10M159/22
    • There is provided a process for the preparation of an overbased sulfurized alkaline earth metal alkylphenate product which provides improved bright stock solubility and reduced foam stability, the overbased alkylphenate products produced thereby, and lubricating oil compositions containing such overbased alkylphenate products. According to the process, a mixture of an alkylphenol having an alkyl group containing from about 8 to about 40 carbon atoms, elemental sulfur, a dihydric alcohol containing from 2 to 6 carbon atoms, an alkaline earth metal compound, a lubricating oil, and a high boiling point linear monohydric alcohol having from about 18 to about 60 carbon atoms is heated to a first temperature within the range of about 121.degree. C. (250.degree. F.) to about 204.degree. C. (400.degree. F.); the resulting intermediate product mixture is contacted with carbon dioxide at a second temperature below 193.degree. C. (380.degree. F.) to provide a carbonated product mixture; the carbonated product mixture is treated to remove unreacted alkylphenol, unreacted dihydric alcohol, and substantially all of the remaining water of reaction to provide a final product mixture; and the final product mixture comprising said overbased alkylphenate and substantially all of the high boiling point linear monohydric alcohol is recovered.
    • 提供了制备高碱性硫化碱土金属烷基酚盐产品的方法,其提供改善的光亮溶解度和降低的泡沫稳定性,由此生产的高碱性烷基酚盐产物和含有这种高碱性烷基酚盐产品的润滑油组合物。 根据该方法,将含有约8〜约40个碳原子的烷基的烷基酚,元素硫,2〜6个碳原子的二元醇,碱土金属化合物,润滑油和 将具有约18至约60个碳原子的高沸点直链一元醇加热至约121℃(250°F)至约204℃(400°F)的第一温度; 所得中间产物混合物在低于193℃(380°F)的第二温度下与二氧化碳接触以提供碳酸化产物混合物; 处理碳酸化产物混合物以除去未反应的烷基酚,未反应的二元醇和基本上所有剩余的反应水,得到最终产物混合物; 并回收包含所述高碱性烷基酚盐和基本上所有高沸点线性一元醇的最终产物混合物。
    • 2. 发明授权
    • Aqueous recovery of cobalt or cobalt and manganese from solution also
containing oxygenated aromatic compounds
    • 从还含有氧化芳族化合物的溶液中回收钴或钴和锰
    • US4680098A
    • 1987-07-14
    • US850534
    • 1986-04-11
    • Yuehsiung Chang
    • Yuehsiung Chang
    • B01D61/44C01G45/00C01G51/00C07C51/265C07C51/42C22B3/16C22B47/00B01D13/02
    • B01D61/44B01D67/0093B01D71/32B01D71/60C01G45/00C01G51/00C07C51/265C07C51/42C22B23/04C22B3/1658C22B47/0009B01D2311/04B01D2311/103C01P2006/40Y02P10/214Y02P10/234
    • Cobalt and manganese oxidation catalyst metals are recovered from trimellitic anhydride process residue by extracting the residue with water and using the extract solution as a diluting solution in an electrodialyzer the separation stack of which comprises an anode channel and at least one three channel repeating unit wherein each repeating unit having in sequence channels A, B, and C. In this separation stack the anode channel is formed by an anode and a cation permeation membrane, Channel A is formed by two cation permeation membranes, Channel B is formed by a cation permeation membrane and an anion permeation membrane, and Channel C is formed by an anion permeation membrane and either a cation permeation membrane or a cathode. A suitable anolyte flows through the anode channel. The diluting solution is fed to the A channels. An electrolyte is fed to the B channels. A suitable catholyte is fed to the C channels. Concentrating solution of cobalt and manganese substantially free of metal and organic contaminants is effluent from the B channels.The metals cobalt or cobalt and manganese can be recovered as an aqueous solution of acetate salts from an aqueous solution containing aromatic compounds including benzoic acid and one or more of the toluic acid, phthalic acid, and carboxybenzaldehyde isomers by electrodialysis using acetic acid and the catholyte, water as the metal acetate solvent, and the aqueous solution acid oxygen-containing aromatic compounds, and the metal ions as a more efficient than precipitating the metals from such solution as their carbonates and dissolving the carbonate precipitate in acetic acid.
    • 钴和锰氧化催化剂金属由偏苯三酸酐工艺残渣中回收,通过用水萃取残余物,并使用提取液作为电渗析器中的稀释溶液,其分离层包括阳极通道和至少一个三通道重复单元,其中每个 重复单元具有顺序通道A,B和C.在该分离堆中,阳极通道由阳极和阳离子渗透膜形成,通道A由两个阳离子渗透膜形成,通道B由阳离子渗透膜 和阴离子渗透膜,通道C由阴离子渗透膜和阳离子渗透膜或阴极形成。 合适的阳极电解液流过阳极通道。 稀释溶液送入A通道。 电解质被供给到B通道。 将合适的阴极电解液送入C通道。 基本不含金属和有机污染物的钴和锰的浓缩溶液是来自B通道的流出物。 金属钴或钴和锰可以通过使用乙酸和阴极电解液的电渗析从包含苯甲酸和一种或多种甲苯甲酸,邻苯二甲酸和羧基苯甲醛异构体的芳族化合物的水溶液中回收作为乙酸盐的水溶液 ,作为金属乙酸酯溶剂的水,以及含水溶液酸性含氧芳香族化合物,以及金属离子比从其碳酸盐溶液中沉淀金属更有效,并将碳酸盐沉淀物溶解在乙酸中。
    • 5. 发明授权
    • Lubricant overbased phenate detergent with improved water tolerance
    • 具有改善耐水性的润滑剂高碱性酚盐清净剂
    • US4865754A
    • 1989-09-12
    • US120829
    • 1987-11-16
    • Yuehsiung Chang
    • Yuehsiung Chang
    • C10M159/22C10M159/24
    • C10M159/24C10M159/22G01N33/287G01N33/2876
    • An improved overbased sulfurized alkaline earth metal phenate detergent lubricating oil additive and the process for its preparation are disclosed. The overbased sulfurized alkaline earth metal phenate detergent lubricating oil additive comprises the reaction product of an alkaline earth metal compound, sulfur, and an alkylphenol in the presence of a polyhydroxy compound and, an alkaline earth metal alkylbenzene sulfonate wherein the reaction mixture is carbonated with carbon dioxide. A lubricating oil composition comprising a major amount of a lubricating oil as base oil and a minor amount of said overbased sulfurized alkaline earth metal phenate detergent lubricating oil additive demonstrates improved storage at elevated temperatures, improved water tolerance and improved compatibility of the phenate-sulfonate mixture, particularly if water is present.
    • 公开了一种改进的高碱性硫化碱土金属酚盐洗涤剂润滑油添加剂及其制备方法。 高碱性硫化碱土金属酚盐洗涤剂润滑油添加剂包括在多羟基化合物和碱土金属烷基苯磺酸存在下的碱土金属化合物,硫和烷基酚的反应产物,其中反应混合物与碳酸化 二氧化碳 包含主要量的润滑油作为基础油和少量所述高碱性硫化碱土金属酚盐洗涤剂润滑油添加剂的润滑油组合物表现出改善的高温储存,改进的耐水性和改善酚盐 - 磺酸盐混合物的相容性 ,特别是如果存在水。