Chinese castor plants were containing 48.1 ~ 49.37% of oil, 5.83 ~ 6.26% of water.

 

France is a big castor oil importer in the world, it monopoly on the production technology of nylon 11. In recent years, France imports a large number of castor oil from India and China, and then refined into nylon 11 and other important fine chemicals to the world. With the use amount of nylon 11 increased, the international market price was fast-growing, the market price has reached $12,000, the hose which made of nylon was $270,000/T, nylon 11 for the automotive industry is the only workable hoses, in the aerospace, automotive, electronics and other cities oil pipelines also have large number of applications, it is difficult to find a completely satisfactory substitute of nylon 11 in a considerable period of time. At present, the price of castor oil on the international market has reached $8,000,000/T or more, the annual demand for castor oil in the world market is 450kt, the total output was 300kt, in a state of demand exceeds supply.

 

Developed castor industry is a systematic project. In China, the production of castor oil has been decreasing due to castor bean's purchasing price reduced. In 1999, China's total production of castor oil was 240kt, used in producing sebacic acid has 40kt, other new product was developed little amount, most of them are directly processed into primary products for exporting. Because of demand exceeding supply, China has been importing large quantities of castor oil. Currently, in China, castor oil's processing technology was lagging behind, developed new varieties are very less, with low yields, small range of applications, and some varieties are still blank. Therefore, developing deep processing products of castor oil have an important significance on China. From the view of the Chinese market, developing castor production has been urgent affairs, from the development momentum of view, China can speed up the development of a variety of castor oil derivative products.

 

Due to the influence of climatic conditions, India, Brazil's castor production has been on the decline, coupled with India has developed the process of manufacturing nylon 11, and it will greatly reduce its exports of castor oil. China now has 50% of castor beans and castor oil derivatives gap, if China could make full use of development advantages, developing castor beans and castor oil derivatives, can be used for export in large quantities. And it will have a significant role in promoting China's economy.

 

One of the most important uses of castor oil is synthesizing surfactant. There are many synthesis methods, but the method which used at the earliest is enzymatic hydrolysis the grease, under the action of enzymes bacteria, such as lipase or pancreatic enzyme by bio-fermentation principles hydrolyze the grease at room temperature, and the hydrolysis rate is 90%, products are best used for the cosmetic industry, then fatty acid methyl ester through ethoxylation, sulfonated or other reactions, it can form of hydrophilic components. At the same time, the ricinoleic acid methyl ester can be prepared purer derivatives. Fatty acids primary as basic raw material of surfactants has been widely used, fatty acid's application in the international markets distributed as: Fatty alcohols, metal Honey Donkeymilk soap natural Donkeymilk soaps handmade natural soaps Handmade natural cosmetics best all donkeymilk natural soap paprika donkeymilk soap benefits best natural Donkeymilk soap Castor oil benefits natural donkeymilk face cream oatmeal donkeymilk soap benefits honey donkeymilk soap benefits honey donkeymilk soap bar was accounted for 35~40%, detergent, soap was 30~40%, alkyd resin, paint was 10~15%, rubber, tyres was 3~5%, textiles, leather, paper was 3~5%, lubricants, grease was 2~3%, and other was 3~5%. Visible, the biggest application area of fatty acids is in daily chemical industry, in the cosmetics material industry also as raw materials for cream.

 

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