1
Santi Kulprathipanja, Richard W Neuzil: Process for the separation of ethanol from water. UOP, James R Hoatson Jr, Raymond H Nelson, William H Page II, March 9, 1982: US04319058 (93 worldwide citation)

Ethanol may be separated from a feed mixture comprising ethanol and water by contacting said feed mixture with an adsorbent comprising a shaped replication of particle aggregates comprising carbonaceous pyropolymers containing recurring units of at least carbon and hydrogen atoms at a temperature in ...


2
Santi Kulprathipanja, Richard W Neuzil, Norman N Li: Separation of fluids by means of mixed matrix membranes. Allied Signal, Thomas K McBride, John F Spears Jr, Raymond H Nelson, April 26, 1988: US04740219 (61 worldwide citation)

A fluid feed mixture, either liquid or gaseous in nature, may be subjected to a gas enrichment separation process. The process is effected by contacting the mixture with the upstream face of a mixed matrix membrane which comprises an organic polymer having a solid particulate adsorbent incorporated ...


3
Santi Kulprathipanja, Anil R Oroskar: Separation of lactic acid from fermentation broth with an anionic polymeric absorbent. UOP, Thomas K McBride, John F Spears Jr, Jack H Hall, November 26, 1991: US05068418 (45 worldwide citation)

Lactic acid is separated from a fermentation broth by using an adsorbent comprising a water-insoluble macroreticular or gel weakly basic anionic exchange resin possessing tertiary amine or pyridine functional groups or a strongly basic anionic exchange resin possessing quaternary amine fuctional gro ...


4
Santi Kulprathipanja, Chin Hsiung Chang: Process for separating isoprene. UOP, Thomas K McBride, William H Page II, John G Tolomei, February 11, 1986: US04570029 (43 worldwide citation)

A process for separating isoprene from isobutylene, isopentane, and pentene-1. The process uses an adsorbent comprising activated carbon or molecular sieve carbon to selectively adsorb isoprene from the other hydrocarbons. High purity isoprene is recovered by desorption using desorbent materials whi ...


5
Stephen W Sohn, Santi Kulprathipanja: Olefinic hydrocarbon separation process. UOP, John G Tolomei, John F Spears Jr, August 22, 2000: US06106702 (43 worldwide citation)

A molecular sieve guard bed used in an adsorptive process for separating olefinic hydrocarbons from paraffinic hydrocarbons is regenerated in a method which recovers valuable hydrocarbons from the guard bed void volumes. The method comprises first contacting the sieve with a purge stream, with the i ...


6
Santi Kulprathipanja, Richard W Neuzil, Norman N Li: Separation of gases by means of mixed matrix membranes. Allied Signal, Raymond H Nelson, Harold N Wells, July 7, 1992: US05127925 (42 worldwide citation)

A fluid feed mixture, either liquid or gaseous in nature, may be subjected to a gas enrichment separation process. The process is effected by contacting the mixture with the upstream face of a mixed matrix membrane which comprises an organic polymer having a solid particulate adsorbent incorporated ...


7
Santi Kulprathipanja, Anil R Oroskar: Separation of an organic acid from a fermentation broth with an anionic polymeric adsorbent. UOP, Thomas K McBride, John F Spears Jr, Jack H Hall, November 26, 1991: US05068419 (36 worldwide citation)

An organic acid is separated from a fermentation broth by using an adsorbent comprising a water-insoluble macroreticular or gel weakly basic anionic exchange resin possessing tertiary amine or pyridine functional groups or a strongly basic anionic exchange resin possessing quaternary amine functiona ...


8
Santi Kulprathipanja: Separation of citric acid from fermentation broth with a neutral polymeric adsorbent. UOP, Thomas K McBride, John F Spears Jr, Jack H Hall, January 19, 1988: US04720579 (29 worldwide citation)

Citric acid is separated from a fermentation broth by using an adsorbent comprising a neutral, noniogenic, macroreticular, water-insoluble, crosslinked styrene-poly(vinyl)benzene and a desorbent comprising water and, optionally, acetone with the water. The pH of the feed is adjusted and maintained b ...


9
Santi Kulprathipanja, Sudhir S Kulkarni: Separation of polar gases from nonpolar gases. UOP, Thomas K McBride, John F Spears Jr, Raymond H Nelson, August 26, 1986: US04608060 (27 worldwide citation)

Polar gases such as hydrogen sulfide, sulfur dioxide and ammonia may be separated from nonpolar gases such as methane, nitrogen, hydrogen or carbon dioxide by passing a mixture of polar and nonpolar gases over the face of a multicomponent membrane at separation conditions. The multicomponent membran ...


10
Michael T Cleary, Santi Kulprathipanja, Richard W Neuzil: Process for separating fatty acids from rosin acids. UOP, James R Hoatson Jr, Louis A Morris, William B Page II, September 13, 1983: US04404145 (27 worldwide citation)

This invention comprises a process for separating a fatty acid from a mixture comprising a fatty acid and a rosin acid, which process comprises contacting the mixture at separation conditions with a molecular sieve comprising silicalite, thereby selectively retaining the fatty acid. The fatty acid m ...