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The main types of composite special scale and corrosion inhibitors and cleaning pre film agents commonly used in water treatment

2020-07-20 17:00:33
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DT-201 high hardness water scale and corrosion inhibitor is a fully organic composite product composed of sulfonate polymer, organic phosphonic acid, carboxylic acid polymer, copper corrosion inhibitor, etc; Suitable for high alkali and high hardness scaling water treatment, with strong scale inhibition and good corrosion inhibition effect; Especially suitable for high pH water quality, it can adjust the pH value without adding acid and operate in alkaline environments; Used for open loop cooling water systems, particularly suitable for systems containing copper equipment. Widely used in circulating cooling water systems such as petrochemical, chemical, power, metallurgy, and central air conditioning. The general dosage concentration is 10-20mg/L, without adjusting the pH value, and residual chlorine is controlled at 0.5-1.0mg/L through chlorine treatment.


DT-202 medium hard water scale and corrosion inhibitor is mainly composed of organic phosphonic acid, carboxylic acid polymers, sulfonate containing copolymers, azoles, etc; It has good chelating and dispersing effects on calcium carbonate, calcium phosphate, etc; Has good corrosion inhibition effect on carbon steel and copper; When operating at higher pH values, it has good stability towards zinc salts and is a water treatment agent that has a dual effect of corrosion and scale inhibition. Used in open circulating water systems to prevent scaling and corrosion of heat exchangers, suitable for a wide range of water quality, can be used in alkaline circulating cooling water, and forms a uniform protective film on the metal surface. Widely used in circulating cooling water systems such as petrochemical, chemical, power, metallurgy, and central air conditioning. The normal operating dosage is 10-20mg/L.


DT-203 low hardness water scale and corrosion inhibitor, composed of various organic phosphonic acids, carboxylic acid polymers, sulfonate containing copolymers, copper corrosion inhibitors, etc; It has good corrosion inhibition performance and dispersion effect, and can form a uniform protective film on the metal surface, suitable for low alkali and low hardness corrosive water treatment. Suitable for corrosion and scale inhibition treatment of industrial circulating cooling water systems, with good corrosion and scale inhibition performance, widely used in circulating cooling water systems such as petrochemical, chemical, power, metallurgy, central air conditioning, etc. It can also be used as a non-stop cleaning agent for cooling water systems. The normal usage concentration is 15-30mg/L, and when used as a cleaning agent, it is generally added at 200-500mg/L.


DT-204 gray water scale inhibitor is composed of organic phosphonic acid, polycarboxylic acid, and sulfonate copolymers; A composite scale inhibitor with chelating and dispersing properties, which has a synergistic effect and can cause lattice distortion in crystals, making it difficult to form a dense and firm scale layer between grains; The dispersibility of the agent makes it difficult for particles to come into contact and collide, allowing them to disperse in water for a long time and be discharged along with the sewage system to maintain the normal operation of the gray water pipeline; If a composite scale inhibitor is selected for the water quality conditions of ash water in thermal power plants, such as high pH value, high alkalinity, and high hardness. Mainly used as a scale inhibitor for ash return water in thermal power plants, it can be used as a specialized scale inhibitor for ash return water in power plants. The general usage concentration is 3-10mg/L.


DT-205 steel plant scale and corrosion inhibitor is composed of organic phosphonic acid, polycarboxylic acid, carbon steel corrosion inhibitor, etc; It has good chelating and dispersing effects on calcium carbonate, calcium phosphate, etc., and has a good corrosion inhibition effect on carbon steel. Mainly used for corrosion and scale inhibition treatment of open circulating cooling water in steel plants, with good corrosion inhibition effect and strong scale inhibition force. The general usage concentration is 5-20mg/L.




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DT-206 oilfield reinjection water scale and corrosion inhibitor. The scale inhibitor DT-206 is composed of various organic phosphoric acids, special surfactants, synergists, etc. It has a chelating effect on Ca2+and Mg2+in water and inhibits scale formation through lattice distortion; It has good chelating and dispersing effects on calcium carbonate, calcium sulfate, and calcium phosphate in water. Mainly used for scale inhibition and descaling of formations and pipelines during oil extraction, to prevent blockage of formations and pipelines caused by scaling. The scale inhibitor DT-206 has the characteristics of high temperature resistance, alkali resistance, salt resistance, stability under oil reservoir conditions, and low usage dosage.


DT-206B oilfield reinjection water barium strontium special scale inhibitor, DT-206B barium strontium scale inhibitor is a new type of Ba2+and Sr2+ion stabilizer. The scale inhibitor DT-206B has an excellent inhibitory effect on the deposition of barium and strontium scales in water that cannot be controlled by existing scale inhibitors in China. It also has an excellent scale inhibition effect on the deposition of insoluble salts such as calcium carbonate, calcium sulfate, and magnesium carbonate in water. It can be widely used as a scale inhibitor and dispersant in oilfield water injection systems and industrial circulating cooling water systems, especially suitable as a Ba2+and Sr2+ion stabilizer.


DT-207 is a phosphorus free scale and corrosion inhibitor, which does not contain phosphorus. In areas with strict requirements for the discharge of phosphorus in wastewater, it can greatly reduce the cost of sewage treatment; Due to the absence of phosphorus, the reproduction of microorganisms in the circulating water system is reduced, and the amount of algae killing agents and mud stripping agents is reduced.


DT-208 is a special scale and corrosion inhibitor for power plants. The scale and corrosion inhibitor DT-208 is a composite of organic phosphonic acid, polycarboxylic acid, carbon steel corrosion inhibitor, and copper corrosion inhibitor. It has a good chelating and dispersing effect on calcium carbonate, calcium sulfate, calcium phosphate, etc. in water and has a good corrosion inhibition effect on carbon steel and copper. The corrosion and scale inhibitor DT-208 is mainly used for corrosion and scale inhibition in circulating cooling water systems, such as power plants, chemical plants, petrochemicals, steel and other circulating cooling water systems. The corrosion and scale inhibitor DT-208 has good corrosion inhibition effect and strong scale inhibition force.


DT-208B is a special corrosion and scale inhibitor for power plants. It is a composite of organic phosphonic acid, polycarboxylic acid, carbon steel corrosion inhibitor, and copper corrosion inhibitor, mainly aimed at low hardness corrosive water quality. It mainly controls the corrosion of circulating water and takes into account the scale inhibition effect. It has a good chelating and dispersing effect on calcium carbonate, calcium sulfate, calcium phosphate, etc. in water and has a good corrosion inhibition effect on carbon steel and copper. The corrosion and scale inhibitor DT-208B is mainly used for corrosion and scale inhibition in circulating cooling water systems, such as power plants, chemical plants, petrochemicals, steel and other circulating cooling water systems. The corrosion and scale inhibitor DT-208B has good corrosion inhibition effect and strong scale inhibition force.


DT-503 boiler specific scale inhibitor, DT-503 boiler specific corrosion and scale inhibitor is a composite product composed of high polymers such as organic phosphonic acid and polycarboxylic acid, which has high corrosion and scale inhibition performance. Its temperature resistance is particularly good, and it can be effectively applied to the treatment of boiler water in low-pressure boilers. Boilers include water heating, steam, locomotive boilers, etc. The boiler specific corrosion and scale inhibitor DT-503 can also be used for corrosion and scale inhibition in systems such as seawater desalination, distillation, and automotive water tanks.


DT-505 is a special corrosion and scale inhibitor for heating water. The corrosion and scale inhibitor DT-505 is mainly composed of chelating dispersants, which use the protective film formed by chelating agents on the metal surface to inhibit corrosion. At the same time, it has a lattice distortion effect on scaling factors such as calcium carbonate and calcium sulfate in water, making it difficult for scale to firmly adhere to the wall of the device, demonstrating excellent scale inhibition effect. This product has the characteristics of high temperature resistance, high scale inhibition rate, and not easy to decompose. The corrosion and scale inhibitor DT-505 does not contain carcinogens such as sodium nitrite. It is an all organic formula with good biodegradability and is a special corrosion and scale inhibitor for heating water. Using DT-505 as a corrosion and scale inhibitor can directly use tap water as heating water without the need for softening and desalination, which can greatly reduce heating costs and create good economic and social benefits for enterprises.


DT-403 cleaning pre film agent, DT-403 cleaning pre film agent is a composite of agents with chelating, cleaning, dispersing, and film-forming functions. DT-403 cleaning pre film agent has a dual function of cleaning and pre film, and has advantages such as fast cleaning speed, good cleaning effect, fast film-forming speed, dense and uniform film-forming, and low corrosion rate in the application process. DT-403 type non-stop neutral cleaning pre film agent has strong adaptability to various water qualities and is not affected by harmful ions such as iron and copper in water. It is suitable for cleaning pre films in circulating cooling water systems, especially for non-stop cleaning pre films in circulating water systems.


DT-405 cleaning and degreasing agent is a composite of agents with multiple functions such as chelation, cleaning, degreasing, dispersion, and penetration. It has unique degreasing, rust removal, and cleaning effects and is a good degreasing and cleaning agent. It can effectively remove dirt on equipment, emulsified oil in water, and oil film adhered to the surface of pipeline equipment, without generating secondary pollution. DT-405 cleaning and degreasing agent has a good effect on removing oil leaked into circulating water, which is comparable to the degreasing effect of biological enzyme preparations. At the same time, it has water-saving and time-saving properties, does not damage water balance, and has good compatibility with phosphorus series corrosion and scale inhibitors. DT-405 cleaning and degreasing agent is suitable for cleaning and degreasing oily circulating water systems, mainly used for cleaning and degreasing before pre membrane of new systems, providing conditions for pre membrane.


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