It is reported that Huafeng Group nylon 66 integration project and annual output of 300000 tons of adiponitrile project started in Chongqing. This is China's first independent research and development of adiponitrile industrial production technology, the first time applied to 300000 tons of projects. The total investment is expected to be 3 billion yuan, and the annual production capacity of 100000 tons can be reached as soon as the beginning of 2021.
Meanwhile, the 400000 T / a adiponitrile project of NVIDIA nylon chemical (China) Co., Ltd., located in Shanghai Chemical Industrial Zone, has recently obtained all construction permits for the project, and has entered the comprehensive construction stage. The construction of the project started several months ago and is progressing smoothly. It is estimated that the installation of process equipment will start in January 2020 and will be put into operation in 2022.
Adiponitrile (c6h8n2) is a chemical intermediate that can be used to produce nylon 6, 6 and other high value products.
Hexanediamine is produced by hydrogenation of adiponitrile, and nylon 66 salt is produced by the neutralization reaction of hexanediamine and adipic acid, which is the most important industrial application of adiponitrile so far.
Nylon-66 has high strength, good wear resistance, delicate handle and good comprehensive performance. It is widely used in industrial silk and engineering plastics, especially in the downstream automobile field.
According to Pacific Securities data, in 2018, the consumption of nylon 6 and 6 in the Chinese market was 520000 tons, accounting for 20% of the total global consumption. Among them, 270000 tons are imported, and the reason for the high degree of dependence on foreign countries is the lack of core raw material adiponitrile.
Highly monopolized market supply pattern of adiponitrile
The production process of adiponitrile is long, the catalyst system is complex, and the reactants also contain highly toxic cyanide, so the technical barrier is very high.
At present, the global capacity of adiponitrile is concentrated in the United States, France and Japan. The suppliers of adiponitrile are only 14 sets of production units of NVIDIA, aoshengde, Solvay and Asahi chemical, with a total global capacity of about 2 million tons. Among them, INVISTA's capacity accounts for 60% of the total capacity of the four companies.
The production capacity of invita adiponitrile is 1.04 million tons / year
Aoshengde adiponitrile production capacity of 400000 tons / year
Butachimie's adiponitrile production capacity is 520000t / a (butachimie is a joint venture factory established in France by NVIDIA (50%) and Solvay (50%)
Asahi's adiponitrile production capacity is 43000 tons / year
Due to the foreign monopoly and blockade of adiponitrile technology, there is no enterprise in China that can produce adiponitrile on a large scale.
Adiponitrile manufacturers all over the world have set up supporting hexanediamine production units. Most of the production capacity is used for the production of hexanediamine and PA66, and only a small amount is exported, resulting in the global supply of adiponitrile becoming tense.
For a long time, the external dependence of adiponitrile in China is 100%.
In October 2020, the price of Shenma nylon 6 and 6 will soar, from 16000 yuan / ton in May and June to 28000 yuan / ton in one month, and the supply is in short supply and the goods are limited. The main reason for the price increase is due to the problem in the supply of INVISTA adiponitrile. The capacity utilization rate is about 65% due to the maintenance of the unit. It will take 3 months to restart after the subsequent maintenance, so the supply is tight for at least half a year.
Shenma Co., Ltd. has a basically complete nylon industrial chain, but adiponitrile is the only imported material. In order to solve the neck sticking problem, Shenma Group has invested 300 million yuan to build a 50000 T / a adiponitrile plant.
Localization has a long way to go
In 2019, China's demand for imported and locally produced adiponitrile containing products is slightly higher than 400000 tons (including nylon 6,6 polymer / fiber / compound, polyurethane and high-performance polyamide), and the apparent demand of China's Nylon 66 is expected to reach 600000 tons in 2020. However, due to the lack of a set of its own adiponitrile production plant in China, domestic nylon 66 manufacturers can only purchase adiponitrile or hexanediamine, resulting in large profits being obtained by multinational companies, which also seriously limits and affects the development of China's Nylon industry and product competitiveness.
Domestic production of adiponitrile is imminent!
In fact, in order to realize the localization of adiponitrile, domestic chemical enterprises began to try from the 20th century
Domestic production of adiponitrile in China
With the efforts of Chinese people, the production technology of adiponitrile has made a breakthrough. For example, after more than 3000 days of independent research and development by the research team of China Tianchen Engineering Co., Ltd., a key research team of China chemical, will be used in the construction of Tianchen Qixiang project, while Shenma Co., Ltd. will adopt its original "direct hydrocyanidization of butadiene to adiponitrile technology".
After the technical breakthrough, domestic enterprises have also set up projects one after another, and began to prepare and invest in the construction of adiponitrile projects.
If the construction starts smoothly, 1 million tons of adiponitrile production capacity will be released in China from 2021 to 2023, and the shortage of domestic and even global adiponitrile supply will be alleviated.
In the face of the coming competition of domestic devices and devices, there is a need for quality to catch up with the market. In terms of quality, compared with NVIDIA's adiponitrile production technology which has been upgraded for many times, the domestic adiponitrile production is still in its infancy, and the process flow needs to be continuously optimized; in terms of cost, the consumption cost of catalyst and the operation efficiency of the device are the key to the competitiveness of the domestic device
Source: official account of the Mo Bay
