The formulation of an evaporated solvent depends on the specific solvent being used. Solvents can be organic or inorganic, and their formulation is typically described by their chemical composition and physical properties.
If you have a specific solvent in mind, please provide its name or chemical formula, and I can provide more detailed information about its formulation.
The solvent consists of Ethylcyclopentan and 2-Methylheptan
In several batches, some solvent enters the reactor and due to the high temperature of the reactor (110), some of the solvent evaporates and the temperature of the reactor decreases (98).
We have the amount of condensate at different times.
The purpose of adding solvent is to separate the polymer pigments of recycled plastics and dissolve LDPٍ.
Ethylcyclopentane (C8H16): Ethylcyclopentane is a saturated hydrocarbon with a five-membered cyclopentane ring and an ethyl group (-C2H5) attached to one of the carbon atoms. It is a colorless, flammable liquid with a sweet odor. Ethylcyclopentane is commonly used as a solvent in various industrial processes due to its low toxicity and good solvency properties.
2-Methylheptane (C8H18): 2-Methylheptane is another saturated hydrocarbon, also known as isoheptane. It has a seven-carbon chain with a methyl group (-CH3) attached to the second carbon atom. 2-Methylheptane is a clear, colorless liquid with a mild odor. It is often used as a solvent and can be a component in gasoline.
In your application, these two solvents are likely blended in specific ratios to create a mixture that can effectively dissolve and separate polymer pigments from recycled plastics and LDP (Low-Density Polyethylene). The choice of solvents may depend on their solvency properties, boiling points, and compatibility with the materials you are working with.
The process you described involves introducing this solvent mixture into a reactor at an elevated temperature (110°C). Due to the high temperature, some of the solvent evaporates, which can lead to a decrease in the reactor's temperature (to 98°C). This change in temperature is likely due to the endothermic nature of the solvent evaporation process, where heat is absorbed during vaporization.
The amount of condensate collected at different times provides valuable data for monitoring and controlling the process. It allows you to quantify the amount of solvent lost through evaporation and potentially recycle or replenish it as needed to maintain the desired solvent concentration in the reactor.
Overall, the formulation of your evaporated solvent involves blending Ethylcyclopentane and 2-Methylheptane to create a solvent mixture suitable for your polymer pigment separation and dissolution application. The process is carefully controlled to optimize solvent usage and separation efficiency.
The formulation of evaporated solvent is a process of removing the solvent from a solution to obtain the solute. The solvent can be evaporated by heating, applying vacuum, or exposing to air flow. The rate of evaporation depends on the vapor pressure, boiling point, and relative evaporation rate of the solvent. The vapor pressure is the pressure exerted by the vapor of the solvent at a given temperature. The boiling point is the temperature at which the vapor pressure equals the atmospheric pressure. The relative evaporation rate is the ratio of the evaporation rate of the solvent to a standard solvent, such as n-butyl acetate1.
Some references for more information on the formulation of evaporated solvent are:
7.1: Evaporation - Chemistry LibreTexts, a web page that explains the basics of evaporation and its applications.
Determining Solvent Evaporation Rates Faster with Science-based Tool, an article that discusses how to calculate the key parameters of solvent evaporation using a science-based tool.
Solvent Evaporation | Practical Coatings Science | Prof Steven Abbott, a web page that provides an interactive calculator for solvent evaporation and coating drying.