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    • 1. 发明授权
    • Demulsification of water-in-oil emulsions
    • 油包水乳液的破乳
    • US4738795A
    • 1988-04-19
    • US781014
    • 1985-09-27
    • J. Redmond Farnand
    • J. Redmond Farnand
    • B01D17/04B01D17/05C09K8/60C10G33/04
    • C09K8/602B01D17/047C10G33/04
    • Crude petroleum water-in-oil emulsions such as those produced by steam injection or water flooding in secondary oil well treatments (and other emulsions of this type) can be very effectively broken by the addition of water-insoluble, polar compounds selected from certain aliphatic carboxylic acids, alcohols, ketones including diketones, acetates, nitropropane, nitrobutane; and alkyl-substituted phenols; in small amounts up to about 8% by weight based on the emulsion. It was found that the number of carbon atoms in the aliphatic compounds and in the phenol's alkyl substituents must be within certain ranges for effective demulsification. The dispersed aqueous droplets, on treatment with the selected compound and appropriate agitation, come together to form an aqueous phase which can be separated. The additives can be recovered from the organic phase and recycled. Certain additive mixtures have been found very effective.
    • 通过在二次油井处理(和其它类型的其它乳液)中通过蒸汽注入或水驱产生的原油石油油包水乳液可以非常有效地通过加入选自某些脂肪族的水不溶性极性化合物 羧酸,醇,酮,包括二酮,乙酸酯,硝基丙烷,硝基丁烷; 和烷基取代的酚; 基于乳液,其量少至多约8重量%。 发现脂肪族化合物和苯酚的烷基取代基中的碳原子数必须在有效的破乳的某一范围内。 分散的水滴在用所选择的化合物处理和适当的搅拌下合在一起形成可以分离的水相。 添加剂可以从有机相回收再循环。 已经发现某些添加剂混合物非常有效。
    • 3. 发明授权
    • Separation of fine solids from petroleum oils and the like
    • 从石油等分离精细固体
    • US4888108A
    • 1989-12-19
    • US220934
    • 1988-06-23
    • J. Redmond Farnand
    • J. Redmond Farnand
    • C10G21/00
    • C10G21/003
    • Dispersed solids, particularly fine peptized hydrophobic solids, present in some petroleum oils, bitumen solutions or concentrates, heavy oils and the like, may be removed by distributing an additive selected from resorcinol, catechol, formic acid, maleic acid or anhydride, chloral hydrate and asphaltene - precipitating solvents (preferably certain mixtures thereof) throughout the dispersion to cause small agglomerates containing the solids to form, and separating the agglomerates from the residual liquid. This residual liquid is rendered more suitable for various refining processes. Agglomerates containing asphaltenes and mineral solids may be used e.g. in hydrogen generation, for compounding roofing materials and in paving materials.
    • 存在于一些石油,沥青溶液或浓缩物,重油等中的分散固体,特别是细的胶溶疏水固体,可以通过分配选自间苯二酚,邻苯二酚,甲酸,马来酸或酸酐,水合氯醛和 沥青质 - 沉淀溶剂(优选其某些混合物)在整个分散体中引起含有固体的小团聚体,并将残留物与剩余液体分离。 这种残留液体更适合于各种精炼过程。 含有沥青质和矿物质固体的聚集体可以被使用。 在氢气生成中,用于复合屋顶材料和铺路材料。