Case Studies of Neem Processing Projects Assisted by GTZ in Kenya, Dominican Republic, Thailand and Nicaragua (GTZ, 2000, 152 p.): 2. Survey of neem-processing methods: Extraction technologies: D) Extraction with Supracritical CO2

Case Studies of Neem Processing Projects Assisted by GTZ in Kenya, Dominican Republic, Thailand and Nicaragua (GTZ, 2000, 152 p.)

2. Survey of neem-processing methods

Extraction technologies

		(introduction...)
		A) Extraction with alcohol (also called one-step extraction)
		B) Refined neem extracts - AZADIRACHTIN-ENRICHED EXTRACTS (also called two-step extraction plant)
		C) Extraction using centrifuges
		D) Extraction with Supracritical CO2

D) Extraction with Supracritical CO2

This technology has recently been used in India in a joint venture with a German company and is considered a very "elegant" technology from the technical point of view.

The technology is relatively environmentally friendly, using CO₂ under high pressure and a transport carrier. The investment costs are quite high, at approx. US$ 3.5 million. Very little is known about experience with this technology so far.