Case study

Key Technologies in the Adipic Acid Industry Adipic acid is a vital organic chemical raw material widely used in the production of resins, food additives, plastics, and other industries, as well as in pharmaceuticals and fragrances. Currently, the nitric acid oxidation of alcohols and ketones is the most traditional and dominant process for adipic acid […]

Nylon 6, also known as polyamide 6, is a high-molecular compound that is polymerized through a series of reactions, including hydrolytic ring-opening, addition polymerization, condensation, and equilibrium processes, using caprolactam as the monomer. The purification process of Nylon 6 extraction water resin. During the polymerization process of Nylon 6 chips using caprolactam as the raw

Ion exchange resin is an insoluble, cross-linked polymer with a three-dimensional network structure capable of exchanging ions with other ions in a solution. Based on the nature of the exchangeable ions, ion exchange resins can be classified into cation exchange resins and anion exchange resins. Additionally, they can be further categorized into strong acid, weak

Ternary lithium-ion batteries, due to their superior performance, have been widely used in portable electronic devices and new energy vehicles worldwide. As the demand for lithium-ion batteries continues to grow, a large number of these batteries are reaching their “retirement” peak. To achieve the circular utilization of valuable metal resources and reduce the environmental impact

With the increasing use of low-grade cobalt ores as the main raw material in the cobalt industry, many companies are processing these ores via hydrometallurgical methods to produce cobalt intermediates, aiming to reduce costs. However, these cobalt intermediates often contain high levels of cobalt, zinc, manganese, and other elements. After acid leaching, it is necessary

The etherification reaction is generally a chemical reaction carried out under acidic catalytic conditions. In the petrochemical industry, processes such as light gasoline etherification and MTBE production currently use resin catalysts (e.g., Southwind) for reaction catalysis, while unreacted methanol is recovered. However, the introduction of acidic catalysts during the etherification process generates a certain level

Southwind, as the largest domestic manufacturer of macroporous adsorption resins, has successfully applied its macroporous resin technology to the field of waste gas treatment. As the core material manufacturer, Southwind Technology holds complete intellectual property rights. Additionally, the company has developed different macroporous adsorption resins with varying pore sizes, polarities, frameworks, specific surface areas, and

Industrial wastewater includes production wastewater, process sewage, and cooling water, often carrying industrial raw materials, intermediates, by-products, and pollutants. Here’s a summary of common treatment methods: 1. Multi-Effect Evaporation Crystallization Technology Used for saline industrial wastewater treatment, this method involves low-temperature multi-effect evaporation and crystallization. Wastewater is separated into desalinated water and concentrated slurry. Crystallizable

Overview of DioxinsDioxins are persistent organic pollutants (POPs) that include 210 compounds of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs). These substances are highly toxic, chemically stable, resistant to photodegradation, and bio-degradation, making them persist in the environment for extended periods. Known for their teratogenic, carcinogenic, and mutagenic properties, they are referred to as the

Gas Treatment Process Flow Diagram Acidic Waste Gas Treatment Activated Coke Flue Gas Desulfurization Technology Process Flow Power Plant Desulfurization Process Limestone-Gypsum Method for Treating Sulfur-Containing Gases Double Alkali Desulfurization Process Magnesium Oxide Desulfurization Process Indirect Limestone-Gypsum Method Citric Acid Absorption Desulfurization New Dual Exhaust Gas Treatment System for Waste Incineration Double Alkali Flue Gas