The defoaming process and alkali, acid and other advantages of display-Iota

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News > Dynamic industry > The defoaming process and alkali, acid and other advantages of display

The defoaming process and alkali, acid and other advantages of display

In the process of industrial production, a lot of harmful foam is produced, which need to be added. Widely used in removal of latex, textile sizing, food fermentation, bio pharmaceutical, coatings, petrochemical, paper, industrial cleaning, sewage treatment and other industries in the production process of harmful foam. Various sewage treatment and various industrial and other water systems, such as the elimination of bubbles and bubble.
Anti foaming agent defoaming origin and mechanism is the senior alcohol or vegetable oil spread on the bubble, when its into the foam fluid, will significantly reduce the surface tension. Because these substances are generally less soluble in water, the reduction of surface tension is confined to the local bubble, and the surface tension of the foam is hardly changed. Part of the surface tension reduction is strongly stretched, extended, and finally ruptured.
In the foam system, the foam agent is added to the gas liquid interfacial diffusion, which makes it difficult for the surface active agent to recover the membrane elasticity. The rate of foam drainage can reflect the stability of the foam, add a kind of material which can accelerate the discharge of foam. The hydrophobic solid particles in the bubble surface can attract the hydrophobic end of the surface active agent, so that the hydrophobic particles produce hydrophilic and enter the water phase, so as to play a role in the bubble.
Some low molecular substances, which can be mixed with the solution, can make the surface active agent of the bubble be reduced, and the effective concentration of the surface active agent can be reduced. This kind of effect of low molecular substances such as alcohol, ethanol, propyl alcohol, not only can reduce the concentration of surface layer of surface active agent and also into the surfactant adsorption layer, reduce the close degree between the surfactant molecules, thereby weakening the stability of foam.
For the use of the foam surface active agent to interact with the double layer, the stability of the foam liquid, adding ordinary electrolyte to the breakdown of the surface active agent of the double layer of foam.
1, alkali defoaming agent
Rapid defoaming in high temperature alkali condition, lasting foam. Good stability, less dosage, high efficiency, no floating oil; widely used in papermaking black liquor treatment, textile printing and dyeing industry in alkali refining agent, alkali condition cleaning agent and other high temperature alkali aqueous system defoaming.
2, anti acid and anti foaming agent
By fatty esters and fatty acid amide and other substances, widely used in wet process phosphoric acid, titanium dioxide production, production of boric acid and other acid system.
3, high viscous foam fire foam agent the goods is for pulping black liquor, chemical processing, special chemical reaction to generate foam, its high viscosity, fine bubbles, eliminate difficult developed a kind of high efficient compound fire foam agent.
4, the dope eliminating foam agent contains a variety of high-quality antifoaming ingredient, and wide range of application, it is particularly applicable to the elimination of styrene acrylic latex, latex of ethylene and propylene, pure acrylic latex, vinyl acetate latex system bubble.
5, defoaming agent can effectively control the paper pulp, papermaking and improve the quality of foam flooding. Widely used in paper pulp defoaming system, can also be used for papermaking wastewater treatment, antifreeze, distillation system defoaming.
6, cement mortar foam agent can effectively control the foam in the cement mortar system, so that the concrete components more compact bright.
7, the oil field industry can effectively control the oil field in the process of the bubble, improve oil production efficiency.
8, cleaning with the bubble can effectively control the cleaning agent.
9 and cation system fire foam agent can effectively control containing cationic foam system, widely used in paper pulp with cationic rosin size, cationic type cleaning agent, can also be used for papermaking wastewater treatment, antifreeze, distillation system defoaming.
10. High efficiency and low temperature resistance of the common organic silicon foam agent is the disadvantage of the low temperature and time. The foam can be eliminated quickly in the fermentation tank, and the product has the advantages of no time to compare.

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