Desalter Demulsifiers

1. Waste Oil demulsifiers
2. Crude Oil demulsifiers
3. Desalting demulsifiers
4. Cutting Oil demulsifiers
5. Reverse-demulsifiers (watersoluble)
6. Polymers


Price unit: inch/KG
Incoterm : EXW or DAP

1. Water-based
2. Oil-based



Price unit: inch/KG
incoterm : EXW or DAP

1. Corrosion Inhibitors
2. Scale Inhibitors
3. Oxygen scavengers
4. Defoaming Agents
5. Cleaning Agents


Price unit: Inch/KG
Incoterm : EXW or DAP

We offer polymers used as flocculation agents to clarify oil-in-water emulsions in industrial processes such as filtration, flotation, sedimentation, and API separation.
They are also effective in sludge thickening and support mechanical separation methods.

Price unit: (inch/kg)
Incoterms: EXW or DAP

The water-soluble reverse-demulsifiers can be used to treat contaminated cutting oils, but also for other industrial oil-in-water emulsions, as can be encountered in various industries. Clarification of the waterphase is the main objective.
Coalescence agents are used to destabilise this type of emulsions by increasing the size of the oil-droplets present.
They can be used together with flocculation agents to accelerate the separation process and/or to improve overall clarification.

Price unit: inch/KG
incoterm : EXW or DAP

Cutting oil emulsions are so called (oil-in-water) emulsions.
Emulsifiers have been deliberately added to ensure a good mixture of the oil and water for cooling purposes. Used cutting oils contain, of course, a lot of contaminations like metal particles.
In order to recover the oil from the used waste cutting oil or to reduce the volume, OWT has water-soluble reverse-demulsifiers.
Especially when a certain batch of such kind of waste has to be treated, we prefer that you send us a representative sample (approx. 3-5 ltrs) of this emulsion together with a description of the process conditions: treatment-temperature, settling or mechanical (centrifuge) separation process and so much more.
In our laboratory we will then select the best cost-performing demulsifier to treat this particular batch, and advice you what goals are obtainable within the shortest possible time limit. This evaluation will be free of charge.

Crude oil flowing from wells contain fair amount (often 20-30%, sometimes up to 60-65%) of water with dissolved salts from basis point up to 1-2%. This significantly increases viscosity of crude oil, generates stable emulsion and makes the oil inadequate for refining and transportation. Water produced together with oil is usually in very unusual state, i.e. it is spread in oil in the form of droplets (emulsified form). Less the size of droplets, more stable the emulsion. One of the main reasons of emulsion stability is also the presence of resin, pyrobitumen, paraffin, and other oil admixtures like glycerine, microcrystal of paraffin, ceresin in crude oil. These substances generate quite firm and thick (protective films) on the surface of water and solid particles thus preventing merging of water drops and solid particles and their spontaneous segregation from oil. At present physical, thermal, physico-chemical, electrical and combined methods of oil emulsion breaking are used for oil dehydration and oil desalting. One of the widelyused and most effective methods is physicochemical combined method using chemical reagents demulsifiers. Demulsifiers are substances with high surface activity. They are concentrated in interfacial areas of oil emulsion, break protective films covering solid particles, water droplets and neutralise their electric charges. After this, small droplets will merge into bigger drops under the influence of mutual attraction, loosen and segregated from oil.Oil demulsifying is carried out in oil field and oil refinery plants.

At present “KARVAN-L” company tries to provide integrated work cycle: – development production supply and implementation of produced demulsifiers together with consumer. Demulsifier Karvan-200 is designed for oil dehydration and desalting in gathering system and oil treatment plant. Reagent can also inhibit corrosion processes.Demulsifier Karvan-201 is designed for separation of both light and heavy crude emulsion. This reagent is the composition of macroglycols and nitrogen-bearing surfactants in organic solvent environment
Demulsifier discharge per 1 ton crude is 10-60gr. Dosage depends on emulsion stability, treatment temperature, water separation period and desired depth of oil processing. Optimum dosage and demulsifier application process ensuring necessary results can only be defined as per test results carried out in practical use sites.