Hubei Sanli Fengxiang Technology Blog

  Mono ethylene glycol (MEG), also known simply as ethylene glycol, might sound appealing, but don't be fooled! This widely used industrial chemical is a colorless, odorless liquid with diverse applications. From keeping your car's engine from freezing in winter to creating the soft fleece in your favorite jacket, MEG is involved in numerous aspects of daily life. But is MEG safe? How is it produced, and what exactly are its various applications? In this blog post, we’ll dive into the world of mono ethylene glycol, separating fact from fiction and uncovering the science behind this remarkable chemical.   Introduction to MEG   Mono ethylene glycol (MEG) , also known as EG, 1,2-ethanediol, or 1,2-dihydroxyethane, is a clear, colorless liquid with a slightly syrupy consistency. Despite its slightly sweet taste, it has almost no odor. MEG is a highly versatile compound that mixes well with water, alcohols, and many organic substances. Its most prominent uses are in the produc...

 Formaldehyde is the main raw material for the manufacture of value-added chemicals such as melamine, urea-formaldehyde and phenolic resins. The most common product is in a 37% aqueous solution, but concentrations can be as high as 57%. Today, there are two main routes for industrial-scale production of formaldehyde: oxidation-dehydrogenation using silver catalysts, including complete or incomplete conversion of methanol; and direct oxidation of methanol to formaldehyde using metal oxide catalysts (Formox process). As an important component of chemicals used in the production of resins, adhesives, plywood and particle board, insulation materials and lubricants, formaldehyde is produced commercially through the catalytic oxidation of methanol.  The production of formaldehyde  from methanol using a silver catalyst is carried out at high temperatures and produces formalin, a 37% aqueous solution of formaldehyde. Iron oxide catalysts used with molybdenum or vanadium in the fo...

  Monoethylene glycol (MEG) is a key raw material used to manufacture polyethylene terephthalate (PET) fibers:   PET Production Process   The basic raw materials in PET, pure terephthalic acid (PTA) and monoethylene glycol (MEG), are chemically reacted with a small amount of co-monomers via a “polycondensation” process to form a base polymer. The resulting polymer is a polyester that is commonly used to make films and fibers.   What is MEG (Monoethylene Glycol)?   MEG ( Monoethylene Glycol ) is a chemical that is used in many industrial applications, including the production of polyester fibers and PET resins. It is also used as a coolant, heat transfer agent, antifreeze, and a hydrate inhibitor in gas pipelines.   Key Properties of MEG: - Boiling Point: 197.3°C (387.1°F) - Freezing Point: -12.9°C (8.8°F) - Miscibility: Fully miscible with water, making it useful in various aqueous solutions.   MEG has a wide range of applications, including its use as...

  What Is Hydrogen Peroxide Good For?   Found in a brown bottle, hydrogen peroxide is an antiseptic liquid that in the past was typically used to treat cuts or other skin wounds, and kill germs. However, peroxide is often used in non-medical situations, including for cleaning, disinfecting and stain removal.    What is Hydrogen Peroxide?   Hydrogen peroxide (H₂O₂)  is essentially water (H₂O) with an extra oxygen molecule. This additional oxygen molecule gives hydrogen peroxide its powerful oxidizing properties, which enable it to kill germs and bleach porous surfaces like fabrics.   For everyday household use, medical-grade hydrogen peroxide—which is 3% peroxide and 97% water—is strong enough and widely available.   A more concentrated version, known as food-grade hydrogen peroxide, can have strengths up to 35%. Despite its name, "food-grade" peroxide is not intended for general cleaning or disinfecting and can be hazardous if inhaled or if it com...

  Sodium percarbonate is produced by the reaction of sodium carbonate with hydrogen peroxide, which can be done via dry, spray granulation and crystallization processes. In the dry process aqueous hydrogen peroxide solution is sprayed on solid sodium carbonate; a solid-liquid reaction yields sodium percarbonate.   What Is Sodium Percarbonate? Sodium percarbonate, also referred to as sodium carbonate peroxide, is a solid chemical compound made by combining sodium carbonate and hydrogen peroxide. Essentially, it is a form of solid hydrogen peroxide. The combination of these two chemicals forms a highly effective cleaning agent, often included in eco-friendly household products.   Production Process of Sodium Percarbonate 1. Raw Materials: Hydrogen Peroxide and Sodium Carbonate The two key ingredients in the production of sodium percarbonate are  hydrogen peroxide (H₂O₂)  and sodium carbonate (Na₂CO₃). These chemicals undergo a reaction that results in the formatio...

  Methyl methacrylate (MMA)  is a widely used organic compound, primarily known for its role in the production of polymethyl methacrylate (PMMA) and various acrylic resins. The process of manufacturing MMA involves various raw materials, and different production methods are applied based on availability and economic factors. In this article, we’ll dive into the essential raw materials used in MMA production, explore the methods involved, and how these materials come together to create a compound critical to modern manufacturing.   Understanding Methyl Methacrylate (MMA) MMA is a liquid organic compound that forms the building blocks of numerous plastic products, especially acrylic materials. These plastics are used in a wide variety of industries, including automotive, construction, and healthcare. Due to its transparency, strength, and weather resistance, MMA has become indispensable in today’s manufacturing landscape.   Common Uses of Methyl Methacrylate Before div...