Ten years of exploration, development and harvest

Rubber additives: ten years of exploration, ten years of development, ten years of harvest

China's rubber additives industry, which started in 1952, has experienced 59 years of development, spanning different historical periods, and has entered a sustainable and stable development stage in the new century. At the new beginning of the new century, in 2001, the professional committee of rubber additives of China Rubber Industry Association was established. Since then, in the big family of the association, the development of China's rubber additives industry has entered a 10-year development fast track with the development of the rubber industry

the 10 years is long, but the 10 years of entrepreneurship is short. After 10 years of exploration, China's rubber additive industry has changed too much: from 200 to only more than 100000 tons in the next year, to more than 800000 tons in 2010, accounting for more than 50% of the global output; From the establishment of a complete industrial system of various rubber additives and advanced technology to the completion of a national technology center... It has developed all the way for 10 years, but it has never left green manufacturing and cleaner production

there are thousands of difficulties and dangers, and the walker is in front. Today, through an exclusive interview with xuchunhua, vice president of China Rubber Industry Association, this edition will present the valuable achievements and experience created by rubber additives people in the past 10 years under the leadership of the professional committee of rubber additives of China Rubber Industry Association, as well as the future direction of sustainable development of the industry

new style in the past decade: the industry has changed from small to large

"after 10 years of development, the output of rubber additives in China has increased from more than 100000 tons in 2001 to more than 800000 tons, accounting for more than 50% of the global total output, and green environmental protection additives have accounted for more than 90% of the total output. A complete industrial system including all kinds of rubber additives and advanced technology has been established, and China has entered the world's leading ranks." Xu Chunhua said happily in an interview

"in addition to the increase in output, one of the major developments of rubber additives enterprises in the past 10 years is the large-scale, intensive degree and product concentration of the enterprise." Xuchunhua told

data show that the annual sales of China's rubber additives enterprises in the 20th century are almost less than 200million yuan. In the 21st century, the scale and intensification of China's rubber additives enterprises have increased significantly. At the end of the tenth five year plan, that is, at the end of 2005, there were 3 enterprises with sales of more than 500 million yuan, 8 enterprises with sales of more than 200 million yuan, 18 Enterprises with sales of more than 100 million yuan, and the total industrial output value was about 8 billion yuan. By 2010, the sales volume of two enterprises exceeded 1billion yuan, six enterprises with more than 500million yuan (an increase of 1 times), 20 enterprises with more than 200million yuan (an increase of 1.5 times), 28 Enterprises with more than 100million yuan (an increase of 50%), and the total industrial output value was about 13.6 billion yuan, an increase of 70%

product concentration is reflected in the fact that the sales of enterprises with more than 100 million yuan account for more than 70% of the sales of the whole industry. The products of many large enterprises have developed from only producing a certain type of products to a comprehensive variety, which not only reduces the production cost, but also facilitates the market supply. Some enterprises have also realized the matching of raw materials

xuchunhua said that over the past 10 years, scientific and technological innovation has injected inexhaustible impetus into the development of enterprises. In 2007, with the support of the Ministry of science and technology, the rubber additives industry established the national rubber additives engineering technology research center with Shandong Yanggu Huatai Chemical Co., Ltd. as the supporting unit, which built a platform for scientific and technological progress for the industry. Then, large and medium-sized enterprises have also established their own R & D centers and local provincial and municipal R & D centers to cultivate talent teams and improve innovation capabilities. These R & D centers not only include the R & D and testing of rubber additives products themselves, but also generally include the testing of various physical properties of products in rubber products, laying a good foundation for technical services, which is a change and improvement of consciousness

relying on scientific and technological innovation, during the "Eleventh Five Year Plan" period, China's rubber additives industry continued to strengthen the development of excellent varieties. Among the antioxidant, p-phenylenediamine 4020 series and quinoline series RD have become the main excellent varieties, accounting for 80% of the total output of antioxidant; Among accelerators, sulfosamide CZ, NS and thiazole m, DM have become the main large tonnage products of accelerators. At present, CZ and NS account for more than 36% of the total accelerators, and m and DM account for 30%; Other processing rubber additives and special functional adhesive products continue to develop steadily

xuchunhua told that over the years, the rubber additive industry has received dozens of projects supported by national key science and technology support plan projects, national innovation fund projects and high-tech industrialization projects. The implementation of the project has greatly promoted the improvement of the enterprise's technological innovation ability and the construction of the talent team, and achieved a large number of scientific and technological achievements. Since the "Eleventh Five Year Plan", various rubber additives enterprises have successively applied for more than 100 national patents, of which the authorized invention patents in 2010 touch more than 10 items, such as lithium titanate, lithium titanium phosphate, negative electrode materials, etc., laying a good foundation for the expansion and strength of China's rubber additives

ten years of new weather: adhere to green manufacturing

it is understood that in 2001, the professional committee of rubber additives of China Rubber Industry Association put forward the opinion of vigorously promoting the cleaner production of China's rubber additives industry at the beginning of its establishment. The opinion points out that the key point of cleaner production in rubber additive industry is to fundamentally change raw materials, reform production processes and adjust product structure, so as to eliminate pollution in the production process and products

this opinion has attracted the general attention of enterprises and accelerated the research and development of alternative products. And in the past 10 years, the idea of developing and replacing toxic and harmful products and improving the greening rate of product varieties has never changed

for example, secondary amine sulfosamide accelerants will produce nitrosamine carcinogenesis due to the automatic storage of experimental conditions and results in the processing process, which is very harmful to human body, mainly including nobs, DTBS, otos, etc. In the 1980s, the displacement sensor problem was eliminated from the German trgs5. Because the system of the universal tensile testing machine is a closed-loop system, 52 regulations and the U.S. Department of labor pointed out that the nitrosamine content in the rubber processing process, including the reserve area, should not exceed 2.5 μ G/m3 the European Union reach regulation in 2006 also clearly stipulates the content of nitrosamines. The primary amine accelerator NS (n-tert-butyl-2-benzothiazolesulfonamide) used to replace nobs has been rapidly developed by China's auxiliary enterprises. In 2001, the output of NS was less than 2000 tons, and in 2007, the output of NS reached 42200 tons, an increase of 20 times, 7.03 times that of nobs, meeting the requirements of industry development, and gradually exported to the world. The output of nobs has been growing negatively year after year, and has fallen to less than 5% of similar products in 2007

also, antioxidant D β- The carcinogenic mechanism of naphthylamine has been confirmed in the 1950s, but its use has not been eliminated in China. Through industry suggestions, accelerator nobs and antioxidant D were listed in the catalogue of high-risk and high environmental pollution products of the Ministry of environmental protection of the people's Republic of China in 2008 and in the catalogue of backward and obsolete production capacity of the country in 2010, so that their production was fundamentally controlled and industry self-discipline was realized

at present, the main domestic production enterprises have stopped the production of accelerator nobs and antioxidant D, and have basically solved the problems of secondary amine subsulfonamide and β- The carcinogenic problem of naphthylamine

"in addition to research and development to replace toxic and harmful products, clean process technology is the fundamental measure for rubber additives to save energy and reduce emissions and achieve green production. Through industry suggestions, China's clean production technology of rubber additives has been listed in the national scientific and technological innovation project guide." Xuchunhua showed some major breakthroughs made by China's rubber additives industry in the clean industry in the past 10 years

-- the fully enclosed clean process technology of silane coupling agent Si-69, which won the second prize of the national science and Technology Progress Award in 2002, has made new development during the "Eleventh Five Year Plan", developed a number of series products and exported them in large quantities, so that the production technology and output of silane coupling agent in China remain in the forefront of the world

-- the clean process technology of rt-peisi, an intermediate of p-phenylenediamine antioxidant, which won the second prize of the national scientific and technological progress award in 2004, has made new innovations during the "Eleventh Five Year Plan" period, expanded the scale of products and downstream products, achieved a sales volume of 2billion yuan/year at one stroke, and played a leading role in the cleaner production technology of China's rubber additive industry, making the production of China's 4000 series of Defense Antioxidant products rank first in the world and have an international leading level, And won a complete victory over the 337 investigation in the United States

-- in 2008, the Ministry of science and technology of the people's Republic of China approved the establishment of "cleaner production process and special functional product development of rubber additives" as the national key science and technology support plan project of the "Eleventh Five Year Plan", which mainly includes: the development of oxygen oxidation process route of accelerator NS; NS wastewater treatment and comprehensive utilization technology of water resources; Development of production technology of 10000 ton high thermal stability insoluble sulfur; Production technology development of 10000 ton pre dispersed rubber additives. This project aims to jointly tackle the common and key technologies of the development of China's rubber additive industry during the "Eleventh Five Year Plan". At present, the project has been fully completed, and a 1000 ton production device for oxygen oxidation of accelerator NS has been built. Ns wastewater treatment and comprehensive utilization of water resources have passed the production technology appraisal, and remarkable environmental and economic benefits have been achieved. Insoluble sulfur with high thermal stability has been built into a production scale of 10000 tons and won the first prize of scientific and technological progress of China Petroleum and Chemical Industry Federation. Pre dispersed rubber additives are a major transformation of the dosage form structure of rubber additives. The products have been sold in domestic and foreign markets and have a good development prospect. The implementation of the project for three years has laid a good foundation for the industrialization of cleaner production technology of rubber additives in China and the realization of self-sufficiency of rubber additives for radial tires in China

a new starting point for the decade: the heavy task of moving forward is on our shoulders

"10 years is a historical leap, and it is a new starting point for another 10 years. With the continuous transfer of the world's rubber additive industry to the East, the world's famous rubber additive manufacturers and traders are optimistic about the development and market of China's rubber additives; with the development and demand of China's rubber industry and even the global rubber industry, China's rubber additive industry has a long way to go, and must continue to adhere to green manufacturing." Xuchunhua introduced the future development direction of the production process of main rubber additives and the measures to strengthen the research and development to replace toxic and harmful products

on the one hand, it is a cleaner production process

the first is accelerator M. This is a universal thiazole accelerator developed and used for a long time in China in 1952, with an annual output of 150000 ~ 200000 tons, of which 70% - 80% are used as raw materials and pharmaceutical intermediates of other accelerators. At present, most enterprises adopt the "aniline method" to synthesize at high temperature and high pressure to prepare crude m, and then refine it. Generally, the reaction yield is only 85%, and the refining process uses acid-base method to produce a large amount of wastewater. At present, 1 ton of finished products usually produce 15 ~ 20 tons of salt containing organic wastewater, and the COD content is more than 4000mg/L, which is very difficult to treat. Therefore, M's clean process technology has become the top priority of the industry during the "12th Five Year Plan". During the "Eleventh Five Year Plan" period, M's clean process technology has already had a certain foundation: through reaction