二、Raw Material Composition and Characteristics

1.Vegetable Acid Oils: Common types include soybean acid oil, rapeseed acid oil, sunflower seed acid oil, palm acid oil, etc. Different vegetable acid oils have distinct fatty acid profiles. For example, soybean acid oil has high linoleic acid content, while palm acid oil has a high proportion of saturated fatty acids. Blending them balances the fatty acid structure and improves the overall performance of the product.

2.Animal Acid Oils: Such as lard acid oil, tallow acid oil, etc. Animal acid oils have higher saturated fatty acid content. Blending them with vegetable acid oils can enhance the stability and melting point of the mixed acid oil, making it suitable for applications with specific requirements for the physical state of the oil.

3.Other Additives: During the mixing process, functional additives such as antioxidants or emulsifiers may be added according to requirements to further improve the storage stability, processing performance, etc., of the mixed acid oil.

三.Quality standards (reference indicators)

四、Properties and Characteristics

1.Compositional Advantage: Blending different acid oils allows for optimization of the fatty acid composition. For instance, blending vegetable acid oil high in unsaturated fatty acids with animal acid oil high in saturated fatty acids ensures certain chemical reactivity while enhancing oxidation stability, broadening the application scope of the product.

2.Adjustable Performance: Key indicators such as acid value, iodine value, and melting point of the mixed acid oil can be customized by adjusting the blending ratio according to different industry needs. For example, for biodiesel production, a mixed acid oil meeting specific combustion performance requirements can be formulated; for the feed industry, its fatty acid ratio can be adjusted to meet animal nutritional needs.

3.Cost Effectiveness: Utilizing acid oils from various sources allows leveraging price differences and resource advantages, reducing production costs. Simultaneously, performance optimization increases product added value and enhances market competitiveness.

4.Stability: Compared to single-source acid oil, mixed acid oil can exhibit better stability under certain conditions. A rational composition blend can slow down oxidative rancidity, extending the storage period. However, storage under suitable conditions (avoiding high temperature, light exposure) is still necessary.

五、Production Process

(一) Raw Material Selection and Pretreatment

Select suitable single-source acid oil raw materials based on the target product performance. Conduct strict quality testing on each raw material, including acid value, moisture, impurities, etc. Subsequently, perform pretreatment such as removing solid impurities and adjusting moisture content to ensure stable raw material quality.

(二) Blending and Formulation

Add different acid oil raw materials into a mixing tank according to the predetermined ratio. Mix thoroughly at a specific temperature (typically 40-60°C) and stirring speed to ensure uniform dispersion of all components. The mixing time depends on raw material characteristics and tank capacity, generally ranging from 0.5 to 2 hours.

(三) Post-Treatment

1.Homogenization: Process the mixed acid oil through a high-pressure homogenizer to further reduce particle size, improve mixing uniformity, and prevent stratification during storage.

2.Addition of Functional Components: Add antioxidants (such as BHA - Butylated Hydroxyanisole, BHT - Butylated Hydroxytoluene), antioxidant synergists (like citric acid), etc., according to product requirements to enhance performance.

3.Filtration and Refining: Use precision filtration equipment to remove impurities and flocculants that may have been introduced during mixing, obtaining a pure mixed acid oil product.

六. Precautions

1.Safe Use: Mixed acid oil is not edible. Strict separation from food-grade oils/fats must be maintained during production, storage, and use to prevent accidental ingestion or misuse.

2.Environmental Treatment: Pollutants such as wastewater and waste residue generated during production must undergo professional treatment to ensure compliance with environmental discharge standards and avoid environmental pollution.

3.Storage Management: Store in a cool, dry, well-ventilated warehouse in sealed containers, avoiding direct sunlight and high-temperature environments. Regularly test the quality of stored mixed acid oil to prevent oxidation, rancidity, and other issues.

4.Market Fluctuations: Its price is significantly influenced by factors such as the supply-demand relationship of various raw materials and international oil/fat price trends. Relevant enterprises need to closely monitor market dynamics and reasonably plan production, procurement, and sales strategies to mitigate market risks.