摘要:
A water base hydraulic fluid is disclosed. The fluid comprises 40 wt % of an amphoteric surfactant of the formula:CH.sub.3 (CH.sub.2).sub.5 --CH(CH.sub.3)--NHCH.sub.2 CH.sub.2 COOHand 10 wt % polypropylene glycol in water.The diluted hydraulic fluid is noted for its good wear characteristics, anticorrosiveness and non foaming nature.
摘要:
A process for recovering bitumen from oil-in-water (O/W) emulsions is disclosed wherein water soluble demulsifiers are used. These demulsifiers are polymers of specific quaternary ammonium monomers or co-polymers of these quaternary ammonium monomers wth other types of monomers wherein the greater portion of the co-polymer is comprised of the quaternary ammonium monomers. To resolve the bituminous petroleum emulsions, the process is carried out between 25.degree. and 160.degree. C. wherein the demulsifier of the invention is contacted with the bituminous emulsion.
摘要:
A process for recovering bitumen from oil-in-water (O/W) emulsions is disclosed wherein water soluble demulsifiers are used. These demulsifiers are salts of polymers and/or co-polymers of specific cationic monomers. To resolve the bituminous petroleum emulsions, the process is carried out between 25.degree. and 160.degree. C. wherein the demulsifier of the invention is contacted with the bituminous emulsion.
摘要:
A process for recovering bitumen from oil-in-water (O/W) emulsions is disclosed wherein water soluble demulsifiers are used. These demulsifiers are ionenes prepared generally by reaction of ditertiary amines and dihalides. To resolve the bituminous petroleum emulsions, the process is carried out between 25.degree. and 160.degree. C. wherein the demulsifier of the invention is contacted with the bituminous emulsion.
摘要:
A process for recovering bitumen from oil-in-water (O/W) emulsions is disclosed wherein water soluble demulsifiers are used. These demulsifiers are polymers of diquaternary ammonium monomers containing hydroxyl groups. To resolve the bituminous petroleum emulsions, the process is carried out between 25.degree. and 160.degree. C. wherein the demulsifier of the invention is contacted with the bituminous emulsion.
摘要:
Water soluble thickeners made by alkoxylating monohydric alcohol hydrophobes are described. The monohydric alcohol should have at least 18 carbon atoms to be properly hydrophobic. In addition, a large proportion of ethylene oxide must be added, such that the molar ratio of ethylene oxide to monohydric alcohol hydrophobe is at least 40:1. Improved results are obtained if 8-15 moles of propylene oxide are added as a block to the single mole of hydrophobe first. The alkoxylations are necessary to provide the desired viscosities and hydrophilic nature. These thickeners are particularly useful in the glycol-water based fluids of this invention.
摘要:
A corrosion-inhibited antifreeze composition is disclosed. Specifically, the antifreeze composition comprises a major portion of a liquid alcohol freezing point depressant and a minor portion of at least one hydroxyl-substituted aromatic carboxylic acid having the hydroxyl radical disposed proximate to the carboxylic radical. The above described acid is employed as a corrosion inhibitor. Other conventional corrosion inhibitors may be employed in conjunction with the acids.In another embodiment, the present invention relates to a process for inhibitig the corrosion of metals present in the cooling system of an internal combustion engine which comprises intimately contacting the metal surface to be inhibited against corrosion with the antifreeze composition described above. Most preferably, the target substrate is high lead solder.
摘要:
This invention relates to reaction injection molded elastomers derived from high molecular weight amine terminated polyethers and/or high molecular weight polyols, a chain extender, a polyisocyanate, a chloro and/or isocyanate silane coupling agent, and untreated filler material. The reaction injection molded (RIM) elastomers of this invention are useful, for example, as automobile body parts.
摘要:
A process for recovering bitumen from oil-in-water (O/W) emulsions is disclosed wherein water soluble demulsifiers are used. These demulsifiers are polyamine salts prepared by contacting poly(ethyleneimines) with organic or inorganic acids. The polyamines have a molecular weight of at least 1,000. To resolve the bituminous petroleum emulsions, the process is carried out between 25.degree. and 160.degree. C. wherein the demulsifier of the invention is contacted with the bituminous emulsion.
摘要:
A dicyclopentadiene derived ethoxysulfonate alone or combined with a petroleum sulfonate surfactant is dissolved in water to form an effective surfactant fluid that is stable in high salinity and/or high temperature environments. The surfactant fluid is injected into an underground petroleum-containing reservoir in an enhanced oil recovery process.