Lubrication oil composite type demulsifier and application thereof

A demulsifier and composite technology, which is applied in the directions of chemical dehydration/demulsification, transportation and packaging, dissolution, etc., can solve problems such as changes in anti-emulsification properties, and achieve the effect of improving the anti-emulsification effect.
CN101721841AActive Publication Date: 2010-06-09CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2010-06-09

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Abstract

The invention relates to a lubrication oil composite demulsifier which is composed of the following components in percent by weight relative to 100 percent of the total weight of the composite demulsifier: 0.5-15 percent of kilfoam, 1-25 percent of demulsifier and 60-98 percent of solvent, wherein the kilfoam is one or more components comprising silicone oil, fluorine-bearing silicone oil and acrylate copolymer, and the demulsifier is a polyethers demulsifier. The invention combines the kilfoam and the demulsifier and gives a full play to the advantages of the kilfoam and the demulsifier, thereby further improving the emulsification resistance of oils.
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Description

technical field

[0001] The invention relates to a composite demulsifier for lubricating oil and its application. Background technique

[0002] Demulsifiers used in lubricating oils are often also called demulsifiers. There are many reasons for poor water separation or emulsification of lubricating oil. One is the high viscosity of lubricating oil; the other is that various additives are added to industrial lubricating oil, most of which are surfactants with emulsifying function; Compounds that deteriorate the demulsibility of the oil. Deepening the refining depth of base oil and selecting appropriate additives are of course a problem that should be considered first, but adding demulsifier is the main way to improve the demulsibility of lubricating oil.

[0003] After adding the demulsifier, the demulsifier is adsorbed on the oil / water interface film, which can change the oil / water interfacial tension, eliminate the obstacle of the mutual combination of the dispersed phase...

Claims

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