Oil Slick Dispersant for marine use on fuel and crude oils

OT 775

KEY PROPERTIES

For use in treating lube oil emulsions containing oil, water and heavy metals (ash). OT 775 is a De-Ashing demulsifier designed to typically reduce the Ash content of treated emulsions by up to 80 − 90%.
Note − This is a two part process using demulsifier OT 775 together with Sulphuric Acid. It is important to use only treatment tanks with a corrosion resistant construction.

APPLICATION

The process requires a treatment-tank, which, preferably, has the following options:

Corrosion resistant construction (i.e. plastic or coated/lined steel) preferred.
Mixing or circulating facility (bottom to top).
Heating-facility or heat-exchanger installed in the circulating system.
Insulation: in order to maintain the temperature during the setting-process.
Injection-pump: to add the demulsifier into the oil.

The Process consists of the following steps:

Fill the treatment tank with the oil-emulsion to be treated.
Sample the tank contents to determine the water-content in the oil.
If necessary, add extra water and mix in to ensure a total water-content of approximately 20%.
Heat the oil/water mixture to 80°C.
Add sulphuric acid to the tank at typically 2,500 ppmv (2.5 litres per m3).
Ensure good mixing during and after adding the sulphuric acid.
Add Demulsifier OT 775 to the tank (normally between 2,500 and 5,000 ppmv).
Ensure good mixing during and after adding the demulsifier.
Stop the mixing/circulating and shut off the heating.
Leave the contents of the tank to settle for one to three days.

After the settling period the water-phase should be separated at the bottom of the tank. Normally this water-phase is quite acidic: pH=~2. The discharged water-phase will be slightly corrosive, and adequate protection measures are required (Settling tanks, pipelines etc). There will be a thin interphase layer present containing water, oil and “sediments”. Top phase will be the oil, containing typically less than 0.5% of water: the ash-content will be reduced by 80 to 90% compared to the original waste oil to be treated.

TECHNICAL DATA

SG	0.96 − 0.98	VOC	Zero
pH	< 2	Freezing Point	< -5°C

AVAILABLE PACK SIZES

1000Ltr, 200Ltr.

SAFE HANDLING AND STORAGE

Store in original containers and avoid extremes of temperature.
For guidance on handling and disposal see Material Safety Data Sheet.

	Manufactured & supplied by Oil Technics Ltd.
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