Wanhua Chemical is a leading enterprise in the domestic toluene diisocyanate (TDI) industry. 300,000 tons/year of TDI industrial production, the product quality and environmental protection level have reached the first-class in the industry.
99.98%! TDIIndustry-leading in purity
From a global perspective, the purity of TDI can be roughly divided into the following three levels: 99.90% or less, which is the mainstream level in the market, suitable for general products and production processes; 99.95% or more, for high-end customer groups, downstream products, and production processes Customers and industries with high requirements; about 99.98%, which can meet the needs of some foreign emerging markets.
In order to better meet the needs of downstream customers, Wanhua Chemical took about 2-3 years to achieve a steady increase in the purity of TDI. Wanhua Chemical continuously optimizes the production process, and minimizes the generation of by-products and impurities from the source through the development of high-efficiency reaction technology, optimized adjustment and precise control of key parameters. At the same time, in view of the impurities produced in the reaction, the impact of each component on downstream production and application is studied one by one, and the TDI product refining technology is independently developed to effectively remove solvents, light and heavy components and trace impurities, which greatly improves the quality of TDI products. The product purity has been improved and stabilized at 99.98%, the hydrolyzed chlorine, acidity and other indicators have been greatly reduced, and the overall quality is far higher than the national product standard, reaching the industry-leading level.
It is reported that the production process of TDI is complicated and the requirements for environmental protection are strict. It is difficult to achieve large-scale production and product quality improvement for a single set of equipment. The purity of Wanhua Chemical's TDI products reaches 99.98%, which means that it has achieved a "milestone" breakthrough in product quality while realizing large-scale production and manufacturing of a single set of equipment.
Helping the quality upgrade of soft home furnishing and high-end coating industry
In the sponge industry, TDI with high purity and low hydrolyzed chlorine has better reaction efficiency with active hydrogen-containing compound molecules, and the prepared sponge products have fine cell structure, softer hand feeling and significantly improved user comfort. Generally, downstream applications such as underwear cotton and high-end furniture products have higher requirements for sponges, and sponges made of high-purity TDI provide a better choice for these applications.
In the high-end coating curing agent industry, the color impurities and free components of high-purity TDI products are significantly reduced, and the prepared curing agent has a lower color number, lighter color, and less volatile matter, making the coating products excellent in appearance, healthy and safe. High-purity TDI products are also suitable for the high-temperature process in the coating production process, which can guarantee the color effect in the high-temperature production process.
At the same time, high-purity TDI products can effectively improve reaction efficiency, help downstream customers improve production efficiency, reduce catalyst consumption, and help downstream industries reduce costs, improve efficiency, and upgrade industries.
At present, Wanhua Chemical's TDI products with a purity of 99.98% are widely used in the soft home furnishing and high-end coating industries, and have received unanimous praise from customers. Wanhua Chemical's penetration in the sponge and coatings industry continues to grow. On the one hand, the purity and batch stability of TDI products continue to improve, empowering the quality upgrade of downstream industries; on the other hand, the factories, storage tanks and fast logistics services distributed near the customer area provide a strong support for the stable supply of products Assure. With Wanhua Chemical's latest breakthrough in the purity of TDI products, it is believed that it will be favored by more downstream markets.
微信扫一扫打赏
