Blown Castor Oil – High-Performance Oxidized Castor Oil for Lubricants, Coatings, Inks & Industrial Applications | Nova Industries

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Blown Castor Oil – High-Performance Oxidized Castor Oil for Lubricants, Coatings, Inks & Industrial Applications | Nova Industries

 

Blown Castor Oil, also known as Oxidized Castor Oil or Stand Oil, is produced by passing air (oxygen) through castor oil at controlled temperature and pressure. This process increases its viscosity, film-forming ability, lubricity, adhesion, and chemical stability, making it an indispensable ingredient in coatings, inks, lubricants, cosmetics, plasticizers, and textile chemicals.

Nova Industries manufactures premium-grade blown castor oil with consistent viscosity, low acidity, and excellent color stability using modern oxidation systems.

1. Manufacturing Process of Blown Castor Oil

A. Raw Material Selection

 

  • High-quality castor oil (FSG/PPG) is selected.

  • Seeds and oil are checked for:

    • Moisture

    • Free fatty acid (FFA)

    • Color

    • Ricinoleic acid content

B. Oxidation / Blowing Process

Blown Castor Oil is produced through controlled oxidation:

  1. Oil is heated to 80°C – 130°C, depending on the target viscosity.

  2. Dry air / oxygen is blown through the oil using:

    • Air spargers

    • Diffusers

    • Stainless steel reactors

  3. The process initiates:

    • Polymerization

    • Oxidation

    • Partial dehydration

  4. This increases:

    • Viscosity

    • Density

    • Film-forming properties

    • Adhesion strength

C. Temperature & Pressure Control

  • Precise temperature is maintained to prevent thermal degradation.

  • Oxidation rate is controlled for uniform viscosity.

D. Filtration Phase

After oxidation:

  • Oil is filtered to remove oxidation residues.

  • Multi-stage polishing ensures bright, clean, high-quality oil.

E. Degassing & Settling

  • Removal of entrapped air bubbles.

  • Oil is allowed to settle naturally for clarity.

F. Quality Control

Every batch is tested for:

  • Viscosity

  • Acid value

  • Density

  • Moisture

  • Color

  • Polymerization stability

  • Solubility

G. Packaging

  • Packed in MS drums, HDPE drums, IBC, or ISO tanks for export.

2. Applications & Industries Using Blown Castor Oil

Blown Castor Oil is preferred where high viscosity, strong adhesion, flexibility, and film strength are required.

A. Major Industries

  • Lubricants

  • Coatings

  • Printing Inks

  • Adhesives & sealants

  • Plasticizers

  • Rubber processing

  • Leather & textile chemicals

  • Cosmetics & personal care

  • Hydraulic & specialty oils

B. Key Applications

  • High-performance greases & lubricants

  • Alkyd & epoxy resin modification

  • Leather finishing chemicals

  • Plasticizers for PVC & polymers

  • Offset printing inks

  • Waterproofing compounds

  • Textile finishes & softeners

  • Hair oils, massage oils & cosmetic formulations

  • Additives in rubber & elastomers

  • Anti-corrosion coatings

  • Industrial paints & varnishes

3. Benefits of Blown Castor Oil

Functional Benefits

  • Excellent film-forming ability

  • Strong adhesion to surfaces

  • Higher viscosity for stable formulations

  • Superior lubricity

  • Non-yellowing, good color stability

Technical Benefits

  • Resistance to hydrolysis

  • Oxidative stability

  • High molecular weight (due to polymerization)

  • Improved compatibility with solvents & resins

  • Strong dispersing properties

Commercial Benefits

  • Enhances product performance at low dosage

  • Cost-effective alternative to synthetic polymers

  • Versatile use across multiple industries

4. Technical & Premium Quality Details

Premium blown castor oil is defined by strict parameters:

Typical Technical Specifications

  • Appearance: Clear to pale yellow viscous liquid

  • Viscosity: High (varies widely based on grade: 300 – 5000+ cP)

  • Acid Value: 2 – 5 mg KOH/g (typical)

  • Iodine Value: 70 – 85

  • Saponification Value: 175 – 185

  • Density @ 25°C: 0.96 – 0.98

  • Moisture: ≤ 0.25%

  • Flash Point: > 250°C

Quality Highlights

  • Controlled polymerization

  • Uniform viscosity

  • Excellent thermal stability

  • Non-toxic and biodegradable

5. Key Specifications & Features

Physical Features

  • Thick, viscous liquid

  • Smooth film-forming texture

  • Mild odor

  • High clarity

Chemical Features

  • Strong hydroxyl functionality

  • Partially polymerized fatty structure

  • Enhanced oxidative stability

  • Non-volatile

Available Variants

  • Low viscosity blown oil

  • Medium viscosity blown oil

  • High viscosity blown oil

  • Custom viscosity grades (300 cP to 5000+ cP)

6. Why Choose Nova Industries for Blown Castor Oil

A. Advanced Manufacturing Technology

  • Modern oxidation reactors

  • Controlled temperature & air-flow systems

  • Automated viscosity control

  • Clean and safe processing environment

B. Stringent Quality Control

  • GC/HPLC analysis

  • Viscosity index testing

  • Acid value monitoring

  • Color & clarity testing

  • Zero contamination assurance

C. Certifications & Compliance

  • ISO-certified production

  • REACH-compliant exports

  • GMP-aligned processes

  • GMO-free, vegan, biodegradable

D. Global Customer Trust

  • Exporting worldwide:

    • USA

    • Europe

    • Japan

    • South Korea

    • Middle East

    • Latin America

  • High repeat orders due to consistent quality

E. Customization Capability

  • Viscosity customization

  • Color-controlled grades

  • Specialized performance grades for lubricants, inks, and coatings

7. Environmental & Sustainability Points

Renewable & Eco-Friendly

  • Derived from castor seeds, a 100% renewable resource

  • Grows in semi-arid regions, no deforestation

Biodegradable

  • Breaks down naturally

  • Safe for environment & aquatic life

Lower Carbon Footprint

  • Lower greenhouse gas emissions compared to petrochemicals

  • Ideal for green chemistry formulations

Supports Sustainable Development

  • Used in eco-friendly lubricants & bio-based polymers

8. High-Performance Characteristics

  • Excellent heat resistance

  • Strong adhesion & binding capability

  • High lubricity

  • Stable viscosity across temperature variations

  • Superior dispersing ability in inks & coatings

  • Excellent water resistance

  • Durable & flexible film formation

These properties make blown castor oil an essential additive in premium industrial, chemical, and cosmetic formulations.

9. Additional Value-Added Information

A. Packaging Options

  • 180–200 kg MS drums

  • 180 kg HDPE drums

  • 1000 L IBC tanks

  • ISO tank containers

  • Custom packaging available

B. Storage Guidelines

  • Store in cool, dry environment

  • Avoid direct sunlight

  • Keep container sealed

  • Ideal temperature: 20–30°C

C. Shelf Life

  • 24 months under proper storage

D. Safety & Handling

  • Non-toxic

  • Use gloves during handling

  • Avoid eye contact

  • Follow standard industrial safety practices

E. Export Advantages

  • High demand in:

    • Lubricants

    • Inks

    • Coatings

    • PVC plasticizers

  • India is the #1 global supplier of castor oil & derivatives

  • Competitive shipping via Mundra Port

F. Global Market Demand

  • Rising demand for bio-based lubricants

  • Growing use in sustainable coatings & inks

  • Increased acceptance as a natural polymer and plasticizer

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