1
A A Gregoli, Uriel M Oko, Frederic Leder: Process for converting heavy crudes, tars, and bitumens to lighter products in the presence of brine at supercritical conditions. Cities Service Oil and Gas Corporation, John Wade Carpenter, April 4, 1989: US04818370 (269 worldwide citation)

A majority amount of a heavy hydrocarbon crude is reacted with a minor amount of brine, at supercritical temperature and pressure for the brine, for a predetermined period of time in order to upgrade and convert the heavy hydrocarbon crude into a lighter hydrocarbon crude of higher API gravity. The ...


2
Guido Sartori, Frederic Leder: Process for removing carbon dioxide containing acidic gases from gaseous mixtures using aqueous amine scrubbing solutions. Exxon Research & Engineering Co, Albert P Halluin, September 5, 1978: US04112052 (133 worldwide citation)

Carbon dioxide containing acidic gases are substantially removed from a normally gaseous mixture by a process comprising contacting the normally gaseous mixture with an aqueous amine solution, wherein at least one of the amines is a sterically hindered amine. The process is operated at a thermodynam ...


3
Guido Sartori, Frederic Leder: Process and amine-solvent absorbent for removing acidic gases from gaseous mixtures. Exxon Research & Engineering Co, Albert P Halluin, September 5, 1978: US04112051 (129 worldwide citation)

Acidic gases are substantially removed from a normally gaseous mixture by a process comprising contacting the normally gaseous mixture with an amine-solvent liquid absorbent comprising (i) an amine comprised of at least about 50 mol % of a sterically hindered amine, and (ii) a solvent for said amine ...


4
Guido Sartori, Frederic Leder: Process for removing carbon dioxide containing acidic gases from gaseous mixtures using a basic salt activated with a hindered amine. Exxon Research & Engineering Co, Albert P Halluin, September 5, 1978: US04112050 (117 worldwide citation)

Carbon dioxide containing acidic gases are removed from a normally gaseous mixture by a process comprising contacting the normally gaseous mixture with an aqueous solution comprising (a) a basic alkali metal salt or hydroxide and (b) an activator for said basic salt or alkali metal salt or hydroxide ...


5
Guido Sartori, Frederic Leder: Process for removing carbon dioxide containing acidic gases from gaseous mixtures using a basic salt activated with a hindered amine. Exxon Research & Engineering Co, Albert P Halluin, August 12, 1980: US04217237 (24 worldwide citation)

Carbon dioxide containing acidic gases are removed from a normally gaseous mixture by a process comprising contacting the normally gaseous mixture with an aqueous solution comprising (a) a basic alkali metal salt or hydroxide and (b) an activator for said basic salt or alkali metal salt or hydroxide ...


6
Christa G Kuehn, Frederic Leder: Three compartment electrolytic cell method for producing hydrogen peroxide. Occidental Research Corporation, Walter A Hackler, November 2, 1982: US04357217 (22 worldwide citation)

Apparatus and method for the production of hydrogen peroxide in either a neutral, acidic or an alkaline solution utilizes a three compartment cell having an acid resistant anode, a gas-diffusion cathode, and both an anion and a cation membrane. Acid electrolyte is introduced between the anode and th ...


7
Guido Sartori, Frederic Leder: Process and amine-solvent absorbent for removing acidic gases from gaseous mixtures. Exxon Research & Engineering Co, Albert P Halluin, December 23, 1980: US04240923 (15 worldwide citation)

Acidic gases are substantially removed from a normally gaseous mixture by a process comprising contacting the normally gaseous mixture with an amine-solvent liquid absorbent comprising (i) an amine comprised of at least about 50 mol % of a sterically hindered amine, and (ii) a solvent for said amine ...


8
Frederic Leder: Forced convection heat exchanger for warming articles. Arnold Grant, August 7, 1979: US04163471 (10 worldwide citation)

A forced convection heat exchanger for warming articles such as baby bottles is provided comprising a container having walls extending upwardly from a bottom end to define an open top end. A platform to receive and support the article to be warmed is mounted within the container spaced apart from th ...


9
Cyrus A Irani, Stephen S Kasegrande, Daniel J McHugh, Frederic Leder: Process for aromatics extraction from a 300.degree.-430.degree. F. boiling range naphtha. James H Callwood, Edward H Mazer, December 18, 1979: US04179362 (7 worldwide citation)

Petroleum fractions may be separated into aromatic rich and paraffinic-rich hydrocarbon streams by the use of methanol/water mixtures having at least 10% water by volume. The paraffinic-rich stream is recovered as raffinate and the aromatic-rich as extract. After the extraction step additional water ...


10
Frederic Leder, George M Kramer, Herman J Solomon: Hydrocarbon isomerization process. Exxon Research & Engineering Co, M L Gibbons, March 23, 1976: US03946088 (2 worldwide citation)

A hydrocarbon feed is isomerized in liquid phase in the presence of a metal halide catalyst, a hydrogen halide solvent and hydrogen at a temperature ranging from at least 50.degree.C and not greater than the critical temperature of the mixture of the hydrocarbon feed and the hydrogen halide. The par ...



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