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Cortec Corporation

Cortec Corporation. Water Treatment Products. Water Treatment Concerns. Bio-growth Scaling Corrosion. Corrosion Tendency Scaling Tendency. pH. 1 2 3 4 5 6 7 8 9 10 11 12 13 14. pH Testing. Bio-Growth. Combating Micro-Biologicals. BioClean 610

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Cortec Corporation

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  1. Cortec Corporation Water Treatment Products

  2. Water Treatment Concerns • Bio-growth • Scaling • Corrosion Corrosion Tendency Scaling Tendency pH 1 2 3 4 5 6 7 8 9 10 11 12 13 14

  3. pH Testing

  4. Bio-Growth

  5. Combating Micro-Biologicals BioClean 610 • Biodegradable, coconut oil-based phospholipid for preservation of system free of bio-growth starting at 300-600ppm BioClean 612 • Aliphatic amide based organic penetrating agent for dispersion of bio-growth deposits/films starting at 50-100ppm

  6. Scaling

  7. Combating Scaling • S-14, dosage starting at 10ppm • S-14F, dosage starting at 10ppm • Meets requirements of 21CFR 173.310 for use in boilers • Meets requirements of 21CFR 176.170 and 176.180 for use in paper production applications • ANSI NSF standard 60 approval for potable water applications up to 10 ppm • S-14RO

  8. Control Coupons without VpCI Additive Coupons withVpCI Additive Corrosion

  9. Cortec’s H2O Products • Cortec has products for the following systems: • Cooling Tower systems (open recirc. loops) • Closed loop systems (heating/cooling; e.g. chillers, heat exchangers, water/glycol loops) • Boilers (low, medium, & high pressure) • Miscellaneous: • Hydrotesting • Sea Water • Pickling processes, • Lay-Up, & more

  10. VpCI Water Additives Reach the metal through Vapor/Liquid Phase Vapor Phase Liquid Phase Film-forming mechanism of protection How VpCI Water Products Work

  11. High Performance of VCIs for H2O Treatment Confirmed by: • Laboratory corrosion test at static and dynamic conditions • Electrochemical study • Application at the Cortec plant (cooling system for the extruder and a boiler) • Field results (Drew/Ashland, US Waters Services, Cortec’s cooling tower and boiler, etc.)

  12. Immersion and Partial Immersion Corrosion Tests ASTM G-316 • Sanded and methanol cleaned metal panels • Immersed in containers filled with water-based solutions/electrolytes with or without added treatment (‘Control’) • Weight loss was determined or panels were visually evaluated for the presence of corrosion after cleaning according to ASTM G-1.7

  13. Reference: SSCE Calomel Saturated Working: Z15001 Zinc Counter: High-density graphite Electrochemical Testing Test Equipment: Potentiostat/Galvanostat “Versastat” with corrosion software model 352/252 SoftCorr™

  14. Tests in Pilot Cooling Tower Model 005 cooling tower manufactured by RSD Towers • 16 GPM recirculation rate • 1.5 inch inlet and outlet diameters • Tap water with 2.3-2.5 cycles of concentration • Temperature = 45-50C • pH = 8.6-8.8 • TDS = 1250-1300ppm • Conductivity = 1850-2000uS Weight loss on corrosion coupons in contact with the tower water passing used to calculate corrosion rates

  15. Toxicity Testing Aquatic Toxicity Testing Terms • NOEC = Highest Concentration with No Observable Effect • LOEC = Lowest Concentration with an Observable Effect • LC50 = Lethal Concentration in the water for 50% of the population tested in the test period • IC25= It is the level at which the organisms exhibit 25 percent reduction in a biological measurement such as reproduction or growth. It is calculated statistically and used in chronic toxicity testing. • LD50 = Lethal Dose (based on body weight of species tested) for 50% of the population tested

  16. Cortec Water Treatment Products for In-Use Applications

  17. Boilers

  18. Boilers and Steam Line Products Low/Medium Pressure working Boilers: • VpCI-617 (USDA approved), VpCI-615 • S-10/S-10F (Corrosion inhibitor for steam condensate lines in the boiler system). • S-7 Oxygen scavenger High Pressure Boilers • S-15Blend of VpCI, CCI, and Oxygen Scavenger

  19. Cooling Systems

  20. Cooling System Problems Left Unchecked Can Cause: • Loss of Heat Transfer • Increased Energy (Resources) Use • Reduced Equipment Life / Failures • Lost Production / Profits • Increased Maintenance Costs • Potential Safety / Health Harm • System / Plant Shutdown

  21. VpCIs for Closed LoopRe-circulating Systems Same water is used over and over, new chemicals and minerals are not added to system as often

  22. VpCIs for Closed LoopRe-circulating Systems VpCI-649, VpCI-649 P Sodium Molybdate tracer Metals: Ferrous, Copper & Brass, Aluminum & alloys, Galvanized Chemistry: Vapor & contact film-forming inhibitor; aminocarboxylate-based salts & polyacrylate dispersant/anti-scalant

  23. Building Blocks for Water Treatment formulations • S-69 (liquid) and S-69 P • Building block for formulations • sodium molybdate as a tracer • Enhances corrosion inhibition for blended products for open loop & closed loop systems • A good VpCI & CCI package

  24. Detecting Concentration http://www.hach.com Molybdate Test Kit, Model MO-2, Color Disc, 100 tests Range (0-50mg/L) Product #: 1419301

  25. VpCIs for Open Systems As new water is continually added, new minerals are also added. New chemical must also be added.

  26. VpCI for Once-through andRe-circulating Open Loop Cooling • VpCI-647 • Concentration Level: 100-200 PPM initial dosage. Maintenance dosage: 15-50 PPM • S-14 Bio • Concentration Level: Added to the make-up water at the rate 20-50 ppm. S-14 Bio is effective at a pH range of 6.0-9.0. Metals: Ferrous, Copper, Brass, Aluminum, & Galvanized steel Chemistry: Vapor and contact film-forming inhibitors along with anti-scalants

  27. Concentration Determination http://www.wet-international.com Kit # K-0142/1 http://www.hach.com Kit # 224800 Phosphorus, Orthophosphate (reactive) Test Kit, Model PO-19, Color Disc, 100 tests http://chemetrics.com Kit # 8510D

  28. Water/Glycol Systems • M-640 L/ M-640/M-95 • Protective concentration levels M-640 L, M-95: 2.0 – 2.5% by weight M-640: 0.5% by weight • Protects cast iron, carbon steel, copper, brass, solder and aluminum • Passes ASTM D 1389 test method for automotive coolants

  29. Test MethodsTitration-Color Wheel

  30. VACUettesauto-dilution ampoules Step 1.Hold the ampoule horizontally and touch the tip of the capillary to the sample to automatically fill. Step 3.A bubble of gas will appear. Tilt the ampoule several times, allowing the bubble to travel from end to end. Step 4.When color develops, quantify the results with a color comparator. Step 2.Fill the snap cup with diluent and immerse the ampoule/capillary tube assembly. Snap the tip.  The ampoule will fill with the diluted sample. www.chemetrics.com

  31. Test Methods • TDS – Total Dissolved Solids (ppm, mg/l) • Conductivity (mS, mhos) • Iron, Copper, Calcium, Hardness

  32. Cortec Water Treatment Products for Lay-Up Applications

  33. Boiler Lay-Up Boiler LizardTM • Ferrous metal protection • Bio-degradable, non-toxic, & non-irritating • Boiler Dry Lay-Up • Dry Lay-up Dosage: 1 bag per 1,000 gallons of total capacity (or, 3.8m3 or 134 ft3)

  34. Silica gels are hard to use and their removal before start up adds another laborious operation. Nitrogen Blankets require extremely tight seals, & often onsite generators. Hydrazine, a suspected carcinogen, is very hazardous. VpCI products in easy to use water soluble bags. Environmentally sound (100% biodegradable). Protects boiler internals; including hard to reach places, through vapor phase. No removal necessary for typical start-ups. Replaces O2 scavenger Boiler Lay-Up : Conventional Vs VpCIs

  35. Cooling Loop GatorTM Multi-metal protection including galvanized Non-toxic, & non-irritating Wet lay-up & flushing applications 4 bags/carton 1 carton/ 1000 gallons (4000 liters, 4m3) Cortec’s VpCI In Cooling Tower Lay-up

  36. Strictly CCIs. Hazardous to environment Oil products react with rubbers in the system & roof tars. Promotes microbial growth during the lay-up period & even after start up VpCIs tandem with CCIs Bio-degradable, environmentally friendly Safe for wide spectrum of rubbers and elastomers. Do not promote microbial growth. Cooling Tower Lay-Up :Conventional Vs VpCIs

  37. Oil based products do not apply evenly & forms gunk balls in Heat Transfer equipment Need expensive cleaners along with biocides to remove oil films before start-ups Easy application No removal needed for a typical start-up Cooling Tower Lay-Up :Conventional Vs VpCIs

  38. Cooling Tower Lay-up • Competitive products:Nalco 2572, 41 L, and other oil based products, a few other contact corrosion products • Easy methods of application with VpCIs: • Add required dosage to the tower make up water or basin. 4bags (1 box) treats up to 1,000gallons • Circulate for 12 to 24 hours (bags and product dissolves and treats system internals) • Drain water to desired level, and seal off pipe valves to external atmosphere. Lay-Up is complete!

  39. Cortec Water Treatment Products for Niche and Miscellaneous Apps.

  40. Pickling Process (acid cleaning) • S-11 / S-11Org /S-11 Powder • S-11 for mineral acids such as; nitric, hydrochloric, sulfuric, etc… Used at 0.5% - 1.0% by weight in final concentration. • S-11 Org for organic acids such as; acetic, citric, formic, oxalic, and also inorganic phosphoric, sulfuric, sulfamic. Used at 1.0 – 4.0% final concentration • S-11 Powder for sulfamic acid. Used at 1-4% final concentration.

  41. Salt Water/Brine • VpCI-644 & VpCI-645 • VpCI-644=0.1-0.3% by weight protective concentration • Strong film-forming properties, & vapor phase protection for difficult situations • VpCI-645=0.25-0.75% by weight concentration • Environmentally friendly option for less aggressive applications.

  42. Salt Water/Brine • M-605 designed to suppress corrosion caused by NaCl based deicer. • M-605 L especially effective when added to a MgCl2 based deicer • M-605 PS effective in CaCl2 based deicer • As a deicing salt additive, 4-5% by weight • As an inhibitor to brines in closed loop cooling systems, (3000-5000 ppm / 0.3-0.5 % weight)

  43. Salt Water • M-645 “Float Coat” Product • Perfect for; • Ballast Tank Protection • Salt Water Hydrotesting, or storage • Approved by EPA for discharge into seawater • Used at 0.15-0.3% as a float coat, or 1,300 – 1,900 sq ft/gallon surface applied

  44. Hydro-testing • VpCI-641, M-645, VpCI-609, S-69/S-69P, VpCI-377, VpCI-417P, VpCI-644, VpCI-645 Multiple Products, for multiple different applications. Depending upon length of protection needed, metal types (ferrous, copper, brass, cast iron, etc…) see hydrotesting chart for more information

  45. Cortec Team • Technical Sales Manager: Jim Holden 804.639.7644 • Technical Service Engineer: Andrea Hansen 651.429.1100 ext. 165 • R & D Chemists: Dr. Margarita Kharshan Dr. Alla Furman • www.cortecvci.com

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