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Yunnan find new sources of natural benzaldehyde


Enterprise already has a production capacity. Ro Co., Ltd. After several years of research, has acquired the leading large-scale DME production technology and production capacity, in the promotion and application of this new energy has also made important contributions. According to China's energy needs of this growing new market situation, Ro Co.,[link widoczny dla zalogowanych], Ltd. is building the production capacity of 30,000 tons of dimethyl ether production line put into operation the first half of this year. Benzaldehyde in Yunnan found a new source of natural flavor research and development center in Yunnan Province researchers in when the property peach Rosaceae species found in natural benzaldehyde, which is recently held in Shanghai, China F & F industry, technology exchange and development seminar, Zhou Tiesheng by the deputy director of the center revealed. Study found that some species of Rosaceae species of peach leaves with strong odor of bitter almonds, the researchers extracted by steam distillation of essential oils of two varieties of leaf; found that the main component of benzaldehyde, and hydrocyanic acid, etc. without any toxic substances. According to reports, the quality of the natural aroma of benzaldehyde is better than synthetic products, is a very broad application in food flavor, which comes mainly from the natural bitter almond oil or cinnamaldehyde in cinnamon oil. Peach rose family found in Yunnan plants rich in resources, new sources of natural benzaldehyde. Industry experts said it can replace bitter almond oil daily for food flavor and fragrance, the market prospect is very broad. Si 3 methylbutyrate domestic production and a 3-methyl ketone is mainly used for dye intermediates, pharmaceutical, pesticide intermediates. It may also be used for dewaxing, extraction and separation of tantalum and niobium metals, food additives, cyclodextrins,[link widoczny dla zalogowanych], rosin extraction, synthesis of phosphorus hydroxybutyrate ethoxy pyrrole, and other organic synthetic raw materials. At present, the main activity of cationic dye intermediates for a whisper of the production of indole. China has two 3-methyl ketone production companies, namely Hong Kong Yixing, Jiangsu Fine Chemical Plant (500t /, Jilin Chemical Fertilizer Plant (250t / its production method is the use of acid, an acid oxidation, process is the oxidation of isobutyraldehyde isobutyric acid production, and then mixed with acetic acid by a certain percentage of backward people ketone reactor, in the role of a catalyst to produce acetone, methyl ethyl ketone and other products from 3 Finally, condensation, separation and other processes to obtain pure into 9 soul above the finished 3-methyl ketone products. the two companies total approximately 650t / production cost is 150,017,000 yuan / 70 products of indole whisper about 9 exports, only 1 for domestic consumption, more popular products. At present , 3-methyl ketone domestic product demand in eastern China is about 1800t / a South China 300t / other areas 4OOt / total domestic demand of about 2500t / a present, the domestic product from 3-methyl ketone production capacity can not meet the domestic demand for production of indole methotrexate, to import 1502000t | a1993 3 on the domestic market price of a methyl ethyl ketone and reached the highest 3800O yuan / t, 1995 since the second half, by the chemical market downturn influence the market price all the way down. current market prices in 2600 Um / t fluctuate and are on the rise. At present, 3-methyl ethyl ketone 1,800 tons of gaps in the market. Thus, a positive development of 1000t / a more ,[link widoczny dla zalogowanych], low-power,[link widoczny dla zalogowanych], low-cost production facilities, economies of scale, and its prospects. Aminodiphenylamine development Aminodiphenylamine referred to the Secretary for RT training is an important fine chemical intermediates, can be used in rubber chemicals, dyes , textiles, printing and pharmaceutical industries, mainly for the production of rubber antioxidant 401ONA402O benzene diamines and so on. According to incomplete statistics,[link widoczny dla zalogowanych], in tire manufacturing, 40IONA ~ 402oR antioxidant in developed countries use more than 7 total. With the rapid development of rubber chemicals, stimulate and promote the production of Aminodiphenylamine rapid development in China during the 20th century has been 9O new or expanded production facilities Aminodiphenylamine, now nearly 10 production plants, production capacity of about 2001 to 2.7 million t / a, but there are still some companies planned or under construction Aminodiphenylamine devices, such as Sinopec Nanjing Chemical Plant is under construction�� million t / a of the new device, first half of 2002 production; Tongling letter of hydrogenation of nitrobenzene in improving the current technology, the program will expand to 20,000 existing installations t / a; Shandong Sunon Group also plans to expand its production facilities. If these devices be completed on the domestic production capacity is expected in 2002 up to 40,000 t / a, 2004 will reach 60 000 t / a or so. now 2.7 million t / a production capacity has been able to meet domestic market demand, there is a considerable part of the exports, has been an oversupply Aminodiphenylamine situation, domestic competition will intensify.
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