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There are nearly 200 kinds of chemical derivatives produced by castor oil, which had been widely used in synthetic fibers, rubber, paint, pesticides, pharmaceuticals, cosmetics, lubricants, brake fluids and a variety of chemicals. Castor oil can produce glycerol, heptaldehyde, sebacic acid, nylon 11 resin, 12 - hydroxy stearic and other high value-added products through deep processing. These products are important raw materials of aerospace, aviation, military, telecommunications, machinery manufacturing, fine chemicals and so on. Castor oil as an energy crop has the following advantages in development Castor can be planted in most parts of China due to its wide adaptability, drought-enduring and stress tolerance, and does not compete fields with food and other staple crops; castor with strong growth potential, has deep roots and luxuriant leaves, can greatly improve the ecological environment of castor growing areas, prevent soil erosion, increase the green area; in addition to use as energy crops, castor in industry, medicine, cosmetics material, sericulture even the military and other aspects also widely used; China has traditional cultivation habits, requirements on castor cultivation and management techniques are relatively extensive; in the past nearly 10 years, Chinese castor production area, yield, total production has been ranked second in the world, only next to India. Castor also has the following disadvantages in development Castor has long growth cycle, lower yields, lower economic benefit; as a raw material for biodiesel production, the cost is higher; The biodiesel produced by castor oil has high viscosity, must be mixed with regular diesel in the ratio of 2:8; since castor is a kind of unlimited inflorescence plant, cluster's maturity period is different between branches, need to be harvested in batches, so that increased labor costs. The current problems of castor oil deep processing a. Crop Breeding: At present, China's feature castor species have more than 30 varieties, of which 10 are hybrids. Most of the castor varieties are suitable for growing in northern China, varieties which resist pest, resist staining and suitable for grew in southern China are very few. All varieties yield are not high, averaging about 1000KG/HM2. b. Harvest, transport, storage, processing and so on: Castor is a kind of unlimited inflorescence plant, cluster's maturity period is different between branches, need to be harvested in batches. Before processing and utilized, the harvested capsule should be through shelling. Because castor beans with a smaller proportion, it is preferable to process into crude oil to transport in origin. Castor’s store requires a certain temperature and moisture content (seed moisture content <9%), storage period cannot be too long, otherwise, the acid value will be too high lead to the processing oil quality not high. Chinese castor processing technology is mature, with excessive processing capacity, so that many plants are in a semi-shutdown or shutdown state. c. Planting: The production cycle of castor is long. Chinese castor production and management technology are relatively extensive, it is difficult to obtain high yields, and unit comparative benefits are relatively low. Recommendations for deep processing castor oil Increase the intensity of breeding new varieties, breeding new varieties which have high-yielding, high oil content, multi-resistant to improve unit area efficiency, increase the income of farmers and processing enterprises; in order to perfect the castor's acquisition systems and networks, idle wasteland, barren, edge of a field, houses around can be make full use of planting castor; for reducing harvest and transportation costs also can breed the species which have relatively consistent branch maturity and can be mechanized harvesting, in the raw material production base, castor beans can be processed into castor oil to transport. Article Source:http://www.cosprm.com
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