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FERROCLEAN - Cleaning Treatment

Description

FERROCLEAN cleaning treatment is a unique, patented, highly effective water-based cleaner containing penetrating, dissolving and dispersing agents. FERROCLEAN cleaning treatment removes, dissolves and disperses iron oxide deposits from diesel cooling water systems while providing a passivating film to protect the base metal from corrosion. Iron fouling in cooling water systems can negatively affect the overall operation of the system resulting in reduced operating efficiency, increased maintenance costs and downtime as well as shortened equipment life. FERROCLEAN cleaning treatment effectively removes iron oxides without subjecting the system metallurgy to the hazards of handling and metal loss associated with using strong acid solutions. FERROCLEAN cleaning treatment also loosens and disperses organic debris trapped in the iron oxide deposits and removes mineral scale in the presence of light oil contamination.

FERROCLEAN cleaning treatment is not recommended for use on galvanized metal.

Application and Use

FERROCLEAN cleaning treatment is an effective cleaner for removing oxides, scale and oil without the need for eutralization. Using good quality, fresh water, circulate a 10% solution of FERROCLEAN cleaning treatment through the equipment. Depending upon the extent of the fouling, the solution strength, contact time and temperature may be varied. Elevated temperatures will improve the cleaning process. In the event of a heavily fouled cooling water system, more than one cleaning may be required. After the cleaning process has been completed using FERROCLEAN cleaning treatment, the system should be drained and thoroughly flushed with fresh water. A quality corrosion inhibitor, such as MAXIGARD® diesel engine treatment, LIQUIDEWT™ cooling water treatment, or DEWT® NC diesel engine water treatment should then be immediately used to protect the system. For a pre-commissioning cleaning, circulate a solution of 2% FERROCLEAN cleaning treatment through the equipment. If cleaning is to be performed without heat, circulate for several days, depending on the severity of the deposits. If heat is applied, 49-65° C (120-150° F), circulation can be reduced to less than a day, again, depending on the severity of the deposits. The following supplies are required to perform the cleaning procedure described below:

1. Circulating pump - either electric or air-driven, which would be capable of circulating the water system 1-2 times per hour.

2. Mixing tank. An open end, 120-liter drum, such as Drew’s Chemical Cleaning Circulating Unit or equivalent, is suitable.

3. Steel piping, flexible hoses, fittings and valves as required to perform the job.

IMPORTANT: This should include a vent pipe leading from the top of the engine system to an upper deck area outside of the engine room.

4. Protective clothing for personnel. This includes goggles, rubber gloves, rubber aprons, etc. See Material Safety Data Sheet.

5. Sufficient FERROCLEAN® cleaning treatment to prepare a 10% solution based on the normal water capacity of the system being cleaned.

Cleaning Diesel Engine Cooling Systems (Out of Service)

A. Where possible, connect the discharge side of the circulating pump to the lowest practical point on the diesel cooling system using a length of flexible hose and the appropriate fittings. Using a second section of flexible hose with fittings, connect a cleaning solution return with a valve from the highest point on the cooling jacket system to the top of the mixing tank, which is the suction supply for the circulating pump.

B. Add approximately 120 liters (32 U.S. gallons) of fresh water to the tank.

C. Before commencing the cleaning, heat the water in the cooling system until it reaches a temperature of 60-82° C (140-180° F). The heat can be provided by a heating coil or steam line in the cleaning solution mixing tank or a system heat exchanger.

D. Secure the engine. This only applies if the engine had to be run to heat the water.

E. Be sure all valving in the mixing tank, pump, return and vent system are open. Start the chemical circulating pump and adjust the flow rate so that the level of the solution in the mixing tank remains constant.

F. Add sufficient FERROCLEAN cleaning treatment to the mixing tank to prepare the required proportions of cleaning solution based on the water volume in the system. An equal amount of water will need to be drained from the system before adding the

FERROCLEAN cleaning treatment.

G. Continue circulation and maintain the cleaning solution temperature for a minimum of 12 hours. As the cleaning progresses after adding FERROCLEAN cleaning treatment, the system water may start to change to a dark green/black color. The system pH will drop to 5.0 - 6.0.

H. Drain and flush the system with fresh water. Continue flushing the system with fresh water until the discharge water is completely clear.

I. Inspect the cooling system interior for cleanliness. Repeat the procedure if the system is not completely clean.

J. Disconnect the vent system and the cleaning system from the engine. Secure all inlet and outlet cleaning points.

K. Fill the engine system with distillate or good quality fresh water and add the correct amount of corrosion inhibitor prior to returning the equipment to service.

NOTE: Should foaming occur during cleaning, we recommend the addition of an anti-foam agent. Contact your local Drew Marine representative for further information.

Typical Physical Properties

Appearance: Light yellow liquid

Specific Gravity at 25° C (77° F): 1.14

Flash Point (PMCC): None

Freeze Point: -7.7° C (18° F)

pH (neat product): 5.1

Packaging

FERROCLEAN cleaning treatment is available in 25-liter pails.

Important Information

Ashland maintains Material Safety Data Sheets on all of its products. Material Safety Data Sheets contain health and safety information for your development of appropriate product handling procedures to protect your employees and customers.

Our Material Safety Data Sheets should be read and understood by all of your supervisory personnel and employees before using Ashland products in your facilities.