1
Chien C Chao: Adsorbent compositions. Union Carbide Corporation, Gary L Wamer, October 2, 1984: US04474896 (147 worldwide citation)

Adsorbent compositions and their preparation are disclosed for the adsorption of elemental mercury.


2
Chien C Chao: Process for separating nitrogen from mixtures thereof with less polar substances. UOP, Richard G Miller, August 22, 1989: US04859217 (87 worldwide citation)

The highly lithium exchanged forms of zeolite X, particularly the low silica forms of zeolite X which contain more than ninety equivalent percent lithium cations, have been found to exhibit extraordinary capacities and selectivities for nitrogen adsorption. Such adsorbents are to a surprising degree ...


3
Chien C Chao, John D Sherman, Joseph T Mullhaupt, Cornelius M Bolinger: Mixed ion-exchanged zeolites and processes for the use thereof in gas separations. UOP, Thomas K McBride, Richard G Miller, December 29, 1992: US05174979 (81 worldwide citation)

Lithium/alkaline earth metal X zeolites in which the lithium:alkaline earth metal equivalent ratio is from about 95:5 to about 50:50 and lithium/alkaline earth metal A zeolites in which the lithium:alkaline earth metal equivalent ratio is from about 10:90 to about 70:30 are useful for separating oxy ...


4
Henry Rastelli, Chien C Chao, Desh R Garg: Selective adsorption of CO.sub.2 on zeolites. Union Carbide Corporation, Richard G Miller, October 4, 1988: US04775396 (53 worldwide citation)

Carbon dioxide is selectively adsorbed and separated from non-acidic gases such as nitrogen, hydrogen and methane using a pressure swing adsorption process in a fixed adsorption bed containing a faujasite type of zeolitic aluminosilicate containing at least 20 equivalent percent of at least one cati ...


5
Chien C Chao, Henry Rastelli: Process for modifying clinoptilolite adsorbent. UOP, Thomas K McBride, John G Tolomei, May 26, 1992: US05116793 (40 worldwide citation)

Clinoptilolites, including both natural and synthetic clinoptilolites which have been ion-exchanged with metal cations such as lithium, sodium, potassium, calcium, magnesium, barium, strontiun, zinc, copper, cobalt, iron and manganese, are useful for the removal of traces of ammonia from streams of ...


6
Chien C Chao, John D Sherman: Bulk separation of inositol and sorbitol by selective adsorption on zeolitic molecular sieves. Union Carbide Corporation, Richard G Miller, November 13, 1984: US04482761 (32 worldwide citation)

A process for the bulk separation of inositol and/or sorbitol is disclosed which comprises the selective adsorption of same on certain types of zeolitic molecular sieves. The process is especially useful for separating inositol from aqueous solutions containing same, using type X and type Y zeolite ...


7
Chien C Chao, Henry Rastelli: Process for purification of hydrocarbons using metal exchanged clinoptilolite to remove carbon dioxide. UOP, Thomas K McBride, Richard G Miller, June 19, 1990: US04935580 (23 worldwide citation)

Clinoptilolites, including both natural clinoptilolites and those which have been ion-exchanged with metal cations such as lithium, sodium, potassium, calcium, magnesium, barium, strontium, zinc, copper, cobalt, iron and manganese, are useful for the removal of traces of carbon dioxide and water fro ...


8
John D Sherman, Chien C Chao: Separation of mannose by selective adsorption on zeolitic molecular sieves. Union Carbide Corporation, Gary L Wamer, September 11, 1984: US04471114 (22 worldwide citation)

A process for the separation of mannose is disclosed which comprises the selective adsorption of same on certain types of zeolitic molecular sieves. The process is especially useful for separating mannose from glucose epimerization product or plant tissue hydrolyzate, using zeolites selected from th ...


9
Chien C Chao, John D Sherman, Joseph T Mullhaupt, Cornelius M Bolinger: Mixed ion-exchanged zeolites and processes for the use thereof in gas separations. Praxair, A H Fritschler, May 9, 1995: US05413625 (21 worldwide citation)

Lithium/alkaline earth metal X zeolites in which the lithium:alkaline earth metal equivalent ratio is from about 95:5 to about 50:50 and lithium/alkaline earth metal A zeolites in which the lithium:alkaline earth metal equivalent ratio is from about 10:90 to about 70:30 are useful for separating oxy ...


10
Andrew S Zarchy, Chien C Chao: Hydrocarbon conversion with additive loss prevention. UOP, Thomas K McBride, John G Tolomei, August 9, 1994: US05336834 (18 worldwide citation)

An adsorption arrangement in combination with a catalytic hydrocarbon conversion process suspends non-hydrocarbon materials that act to enhance the operation of the conversion zone by using an adsorption zone arrangement to keep the compounds in recirculation about the reaction zone. The process of ...