What are some good downstream products for synthetic ammonia and urea at present?
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With the continuous increase in urea production, what downstream products can nitrogen fertilizer plants develop? Our factory has already developed triamines, and the returns have been quite good. Currently under consideration: 1. Project name: Feed-grade biuret. 2. Feasibility: The manufacturing process is mature, and our factory has an advantage in terms of raw materials. Feed-grade biuret is mainly added to cattle and sheep feed, and is considered a new type of industrial feed protein. Currently, feed prices have risen sharply; in particular, the price of soybean meal has increased by around 80%, reaching 4,000 yuan per ton. One ton of biuret is equivalent to 5 to 6 tons of soybean meal or soybean cake. It is a major province in the livestock industry, with very good market prospects. Dicyandiamide can also be used in industrial production such as sponges, foam plastics, adhesives, textiles, and pharmaceuticals. Currently, the import price of biuret with 99.50% purity in France is 57,500 yuan per ton. Domestic manufacturers include the Shanghai Fertilizer Factory and the Hunan Xiangjiang Nitrogen Fertilizer Factory. III. Process route: 1. Dow Corporation’s cyclic method in the United States. 2. There is a pressurization method for a small amount of water in Italy. 3. Polish urea pyrolysis method. 4. Continuous biuret method in the Czech Republic. 5. After research, the use of urea is currently the best method for the synthesis of ethylene glycol ether. I. Project Name: Modified urea-formaldehyde resin II. Feasibility: Currently, urea-formaldehyde resin adhesives account for 2/3 of all synthetic adhesives used in China; however, due to outdated manufacturing processes, the formaldehyde emission level from these adhesives exceeds the allowed limits by 80%. Amid the current restrictions on tree felling, artificial boards have seen rapid development. To address issues such as excessive formaldehyde emissions from these boards, the development of environmentally friendly urea-formaldehyde resins is a key priority in China’s 10th Five-Year Plan. Current environmentally friendly urea-formaldehyde resins use urea and formaldehyde as monomers, with melamine and polyvinyl alcohol serving as modifiers to reduce the formaldehyde content, thereby achieving the goal of producing environmentally friendly urea-formaldehyde resins. At present, our factory produces urea and melamine products. With the development of coal chemistry, formaldehyde is generated as a by-product in the production of methanol from coal, making it readily available as well. III. Process route: Currently, there are numerous production processes for environmentally friendly urea-formaldehyde resins in China, and many of these processes can achieve E1 or E0 grades. If developing such environmentally friendly urea-formaldehyde resins is to be pursued, further research and investigation in various aspects are necessary.
It’s difficult to develop new products these days; generally, a product that isn’t available in one’s own factory is considered a new product. In fact, other factories may already be producing that product, and the market might already be saturated.
Our factory has developed triamines, and the economic benefits are good.
Our factory has a production capacity of 18,000 tons per year of triamines. 180,000 tons per year of formaldehyde. However, modified urea-formaldehyde resin is difficult to sell. Small sales radius
Study on the synthesis of isobutyraldihydrazone: Isobutyraldihydrazone was synthesized by reacting urea with isobutyraldehyde under acid catalysis. Experiments showed that the highest yield of isobutyraldihydrazone was obtained at a temperature of 64–68°C and a pH value of 3, with a molar ratio of isobutyraldehyde to urea of 1:2; under these conditions, the purity of the product met the required standards, indicating them as the optimal reaction conditions. Research on isobutyraldihydrazone in our country started relatively late, and industrial production does not yet exist; therefore, investment in its development is needed. It will bring significant economic and social benefits. Benzaldehyde amidourea is synthesized in one-pot using hydrazine hydrate, urea, and benzaldehyde. In this process, the intermediate amidourea is not separated in the form of its hydrochloride salt; instead, it reacts directly with benzaldehyde, and no hydrazine-containing wastewater is generated. The suitable reaction conditions are: n (H2NNH2•H2O)∶n (H2NCONH2)∶n (C6H5CHO) = 1,0∶2,0∶0,8. The synthesis temperature for ureidoamine is 98–101°C, with a reaction time of 3–4 hours; for the condensation reaction, the pH is maintained at 3–4, the addition time is 1.5 hours, stirring is carried out at room temperature for 2 hours and under reflux for 1 hour. The yield of the product is 98.0%.
Urea-based skincare products are also a good choice; I saw online that a brand of urea hand cream was selling for 50 dollars (Japanese yen). Low cost, high profit! :lol
Currently, we have installed another set of triamines
Melamine should be a good downstream product of urea, but it is difficult to master this technology; production management and maintenance pose significant challenges. Domestic technology is primarily developed by Tsinghua University, while foreign technology is mainly associated with the Italian company Otech.
In my opinion, it is better to develop methanol, ethylene glycol, and dimethyl ether; in particular, dimethyl ether has promising prospects