会议:
 
第十二届欧洲超临界流体会议
本届欧洲超临界流体会议将与2010年5月9至12日在奥地利的格拉茨举办。会议将讨论超临界流体性质及超临界流体在反应、材料、新能源方面的应用及进展,及超临界的新应用。届时,未来化学科技有限公司与法国SEPAREX公司将参加此次会议,并展示我们的超临界萃取设备、超临界微粒制备与结晶系统、超临界流体相平衡仪、超临界反应装置、超临界干燥设备、超临界水氧化设备、各种高压流体泵、循环泵等。
 
第十届国际超临界流体会议

第10界国际超临界流体学术研讨会将于2012年5月13日至16日在美国旧金山举办。

 
 
 
 
Extraction                     实验室超临界萃取仪
 
Supercritical extraction mostly uses carbon dioxide at high pressure to extract the high value products from natural materials. Unlike other processes, the extraction process leaves no solvent residue behind. Moreover the CO2 is non-toxic, non-flammable, odorless, tasteless, inert, and inexpensive. Due to its low critical temperature 31°C, carbon dioxide is known to be perfectly adapted in food, aromas, essential oils and nutraceutical industry.
 
Supercritical Fluid Extraction Process
 
The schematic process diagram shown above describes the "classical" batch extraction process. The equipment is composed of one or several extractors consisting in high pressure autoclave(s) with fast-opening systems in which the material to be treated is set inside a “ basket ” easy to put in and to remove, and a separation section where extract and fluid are separated prior to fluid recycle through condensation and liquid pumping. The major issue of such operation is the fact that it is a batch process.
 
Separex can now proposes a continuous extraction process on solid material. Very encouraging results are obtained on continuous extraction at high pressure (on hops, caraway...)
 
Some examples of extracted molecules
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Supercritical Extraction of natural products


Among the dozens of natural products extracted in Separex since 20 years, we can mention coriander, black pepper, basil, paprika, marjoram, celery, curcuma, pimento, vanilla, cinnamon, ginseng, peanut, sunflower... The picture here below shows the aspect of four extracts.
 
 
 
 
 
Purification
 
Many molecules can be extracted or refined by supercritical fluid processes : colorants (deodorization of blue color from red cabbage juice, orange color from pot marigold flower, carotenoids from palm oil or shellfish or carrots…), antioxidant preservatives (deodorization of rosemary extract), or texture agents (lecithin purification from vegetal oil). fish oils or derivatives deodorized and purified by SFF; moreover, some stuffs are treated for elimination of pesticides (ginseng) or toxaphenes (fish oils);
 
Some examples of deodorization/purification

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Pesticides extraction from Ginseng roots
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Allergens elimination form rose extracts
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Chlorophenol and chloroanisol from corks
 
 
 
实验室超临界萃取仪    中试超临界萃取设备    工业超临界萃取设备
 
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