Demulsifying agents

Demulsifying agent Solution of a sulfonic acid, a phenolic resin, and alcohol 5 to 15... 

Effectiveness Testing. Initially, it was emphasized that oil spill-treating agents can be divided into four classes solidifiers, demulsifying agents, surfacewashing agents, and dispersants. 

In the same way, a crosslinked oxalkylated polyalkylene polyamine can be obtained by preparing a completely oxalkylated polyalkylene polyamine with a degree of polymerization of 10 to 300, crosslinked with a polyalcohol. The demulsifying agent is made from a mixture of the crosslinked oxalkylated polyalkylene polyamine with 25% to 75% by weight of an oxethylated or oxypropylated isoalkylphenol-formaldehyde resin [154]. 

Oxyalkylated compounds in deposit Indicates the presence of water- or oil-soluble cleaning agents or the presence of demulsifying agents... 

Demulsifying agents are usually added to the continuous phase and need to diffuse to the interface and displace, or otherwise destroy, the effectiveness of the original stabilizing agents at the interfaces. The demulsifier should usually be added far enough upstream to permit these actions to take place, and for droplet coalescence to occur, before the emulsion reaches a separating vessel. Demulsifiers are formu-... 

This treatment involves the addition of a demulsifier. For example acetone [85], n-butanol [130,131], and 2-propanol [132] have been found to be effective demulsifying agents for particular applications. Although this method is effective, it modifies the properties and prevents reuse because additional separation steps for recovery and recycling are required. Further recovery of the demulsifier by distillation is expensive [101,131]. 

This is usually determined by the ASTM method D 2550-66T (Water Separometer Index, Modified or WSIM test). The WSIM test helps to find one inhibitor among the others that is effective as a corrosion inhibitor, but produces minimal emulsification or that can be modified by a demulsifying agent without losing its corrosion inhibitive properties. 

Uses Surfactant, dispersant, wetting agent, emulsifier, demulsifying agent for Industrial and household detergents... 

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