Vanconol® FPI-S100 Series Fatty Acid Polyamine Imidazoline Corrosion Inhibitors
Product Overview
Vanconol® FPI-S100 series corrosion inhibitors are produced from fatty acids and polyethylene polyamines via a high-temperature dehydration and cyclization reaction. The products are environmentally friendly, non-toxic and free of heavy metals. They are highly effective corrosion inhibitors suitable for formulating oil and gas field corrosion inhibitors, petroleum refining corrosion inhibitors and industrial cleaning corrosion inhibitors. They can also serve as raw materials for cationic surfactants: modification by quaternization or by attaching other functional groups yields nitrogen-containing surfactants.
Chemical Description
Fatty acid polyamine imidazoline.
Typical Grades
| Grade | Chemical Name | CAS No. | Number of Ethylene Amine Units |
|---|---|---|---|
| FPI-S101 | Oleic acid-based polyamine imidazoline | 20565-75-7 | 1 to 4 |
| FPI-S102 | Tall oil-based polyamine imidazoline | 61790-69-0 | 1 to 4 |
| FPI-S103 | Tung oil acid-based polyamine imidazoline | 25749-86-4 | 1 to 4 |
| FPI-S104 | Lauryl polyamine imidazoline | 95-37-4 | 1 to 4 |
Benefits
- High cyclization rate: advanced reaction technology promotes amide ring closure, achieving high conversion to the imidazoline product.
- Good coordination stability: the imidazoline ring and imino groups form multi-point anchoring with metal surfaces, improving film durability.
- Good film formation: the molecular structure adsorbs strongly onto metal surfaces to form a dense protective film that inhibits corrosion.
Typical Properties
| Property | Range | Test Method |
|---|---|---|
| Appearance (25 °C) | Yellow to reddish-brown clear liquid | Visual inspection |
| Density (20 °C, g/cm³) | 0.90–0.95 | Gravimetric method |
| Non-volatile matter content | ≥97% | Oven drying method |
| Solubility | Miscible with organic solvents | Visual inspection |
Applications
- Crude oil production: protection of downhole equipment; corrosion inhibition in oil and gas gathering and transportation pipelines, reinjection water pipelines and storage tanks.
- Petrochemical industry: corrosion control in equipment and pipelines.
- Water treatment: feedwater purification, circulating water treatment, circulating cooling systems, boiler water treatment, etc.
- Iron and steel manufacturing: protection of equipment and pipelines against corrosion.
- Others: power generation, textiles, food and pharmaceutical industries.
Handling Recommendations
- This product is oil-soluble and can be diluted directly in solvent-based systems. For waterborne systems, it is recommended to first reduce viscosity with an alcohol solvent and adjust with acetic acid (approximately 3 parts acetic acid per 10 parts product), then dilute with softened water.
- Without a synergist, the dosage for the final application (e.g., refinery corrosion inhibitor) is above 20 ppm; laboratory testing is recommended to verify optimum performance.
Storage and Transportation
- Packed in plastic drums with a net content of 220 L per drum; other packaging is available on request.
- During storage and transportation, protect from sunlight, fire, moisture and impact; store in a clean, cool and dry warehouse.
- Shelf life: one year at room temperature.