In the production of dewaxed oils, ensuring high - quality products is a top priority. This article focuses on the core pain points of post - dewaxing oil quality control, covering five key indicators: cloud point testing, wax content determination, acid value change, color stability, and fluidity assessment.
Under industry standards such as ASTM, there are specific laboratory testing processes and on - site rapid detection techniques. For example, the ASTM standard provides a detailed framework for cloud point testing. The laboratory testing process usually includes precise sample preparation, strict temperature control, and accurate observation of phase changes. On - site rapid detection techniques, on the other hand, are designed for quick feedback, allowing for timely adjustments in the production process. It is crucial to follow the operation specifications and pay attention to details during these tests to ensure accurate results.
There are several common reasons for unqualified dewaxed oils. One of the main causes is improper crystallization temperature. If the temperature is too high, the wax may not crystallize completely, leading to a high wax content and cloud point in the oil. Another issue is incomplete filtration. Insufficient filtration can result in wax particles remaining in the oil, affecting its clarity and fluidity. Solvent residue is also a significant problem, which can not only affect the taste and quality of the oil but also pose potential safety risks.
To address these problems, targeted improvement measures are needed. For example, by optimizing the temperature control system, the crystallization temperature can be maintained within the appropriate range. Improving the filtration precision, such as using high - quality filter materials and increasing the number of filtration steps, can effectively remove wax particles. Additionally, enhancing the solvent recovery process can reduce solvent residue.
"The ASTM standard for cloud point testing requires that the sample be cooled at a specific rate, and the cloud point is recorded when the first sign of cloudiness appears."
To achieve stable product quality and improve batch consistency, it is essential to establish a closed - loop quality management system. This system involves continuously monitoring the key quality indicators, analyzing the data, and making dynamic adjustments to the process parameters. For example, if the cloud point of the oil is found to be slightly higher than the standard, the temperature or filtration process can be adjusted accordingly.
By implementing this closed - loop system, production managers can ensure that the products consistently meet the quality standards, thereby enhancing customer satisfaction and the competitiveness of the enterprise in the market.
If you are facing challenges in dewaxed oil quality control, such as cloud point超标 solutions or improving the fluidity of edible oils, our QIE Group professional team can provide you with customized dewaxing quality diagnosis and process optimization suggestions. Click here to contact us and take the first step towards high - quality oil production.
