NDLI: Insight into Green Phase Transfer Catalysis

Content Provider	Springer Nature Link
Author	Yadav, G.D.
Copyright Year	2004
Abstract	There is a need to develop green, clean and smart chemical technologies. Waste reduction through clever strategies and catalysis are at the heart of green chemistry. In the case of over 600 industrial phase transfer catalyzed (PTC) processes in several industries, mostly practised as liquid–liquid PTC, the catalyst is not recovered and disposed as a waste. Liquid–liquid PTC can be replaced by solid–liquid (S–L), liquid–liquid–liquid (L–L–L), solid (catalyst)–liquid–liquid, solid–liquid–omega liquid, gas–liquid–solid (G–L–S) and capsule membrane PTC to recover and reuse the catalyst and also to enhance selectivity, thereby advocating the realm of green PTC. Use of microwaves and ultrasound will also help in increasing rates. MILL–PTC and MISL–PTC are attractive techniques to enhance rate and selectivities under mild input of microwave irradiation (MI). In cascade-engineered PTC, several steps are combined in a reactor using the same catalyst and solvent, if used at all, without separation, or with partial replenishment of the reactants for all the steps to get substantial waste minimization. This paper provides a new insight into PTC for some reactions of industrial importance.
Starting Page	145
Ending Page	161
Page Count	17
File Format	PDF
ISSN	10225528
Journal	Topics in Catalysis
Volume Number	29
Issue Number	3-4
e-ISSN	15729028
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2004-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Physical Chemistry Industrial Chemistry/Chemical Engineering Catalysis Characterization and Evaluation Materials Pharmacy
Content Type	Text
Resource Type	Article
Subject	Chemistry Catalysis

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