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Robert J Wittenbrink, Daniel F Ryan, Douglas R Boate: Production of synthetic lubricant and lubricant base stock without dewaxing. Exxon Research and Engineering Company, Jay Simon, August 15, 2000: US06103099 (69 worldwide citation)

A lubricating base stock useful for forming lubricants such as a multigrade automotive oils, automatic transmission oils, greases and the like is prepared by hydroisomerizing a waxy hydrocarbon feed fraction having an initial boiling point in the 650-750.degree. F. range and an end point of at least ...


2
Ian A Cody, Douglas R Boate, William J Murphy, Daniel P Leta: Hydroconversion process for making lubricating oil basestocks. Exxon Research and Engineering Co, James H Takemoto, August 10, 1999: US05935417 (33 worldwide citation)

A process for producing a lubricating oil basestock having at least 90 wt. % saturates and a VI of at least 105 by selectively hydroconverting a raffinate from a solvent extraction zone in a two step hydroconversion zone followed by a hydrofinishing zone and a dewaxing zone.


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Ian A Cody, Douglas R Boate, Sandra J Alward, William J Murphy, John E Gallagher, Alberto Ravella, Richard A Demmin: Hydroconversion process for making lubricating oil basestocks. Exxon Research and Engineering Co, James H Takemoto, August 1, 2000: US06096189 (24 worldwide citation)

A process for producing a lubricating oil basestock having at least 90 wt. % saturates and a VI of at least 105 by selectively hydroconverting a raffinate from a solvent extraction zone in a two step hydroconversion zone followed by a hydrofinishing zone.


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Ian A Cody, Douglas R Boate, Sandra J Linek, William J Murphy, John E Gallagher, Alberto Ravella, Richard A Demmin: Hydroconversion process for making lubricating oil basestocks. ExxonMobil Research and Engineering Company, James H Takemoto, November 27, 2001: US06322692 (19 worldwide citation)

A process for producing a lubricating oil basestock having at least 90 wt. % saturates and a VI of at least 105 by selectively hydroconverting a raffinate from a solvent extraction zone in a two step hydroconversion zone followed by a hydrofinishing zone, and a lubricating oil basestock produced by ...


5
Ian A Cody, Douglas R Boate: Raffinate hydroconversion process. Exxon Research and Engineering Co, J H Takemoto, June 15, 1999: US05911874 (16 worldwide citation)

A process for upgrading a wax-containing feedstock to produce a wax and a high VI/low volatility lubricating oil basestock. The process comprises subjecting the raffinate from a solvent extraction step to a two step, single stage hydroconversion process wherein the first step involves severe hydroco ...


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Ian A Cody, Douglas R Boate, William J Murphy, Daniel P Leta: Raffinate hydroconversion process. Exxon Research and Engineering Co, James H Takemoto, August 10, 1999: US05935416 (9 worldwide citation)

A process for producing a high VI/low volatility lubricating oil basestock. The process comprises subjecting the raffinate from a solvent extraction step to a two-step, single-stage hydroconversion process wherein the first step involves severe hydroconversion of the raffinate followed by a cold hyd ...


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Douglas R Boate, Michael J Zaworotko: Organic non-quaternary clathrate salts for petroleum separation. Exxon Research and Engineering Company, Joseph J Allocca, June 15, 1993: US05220106 (8 worldwide citation)

Organic non-quaternary clathrate salts are useful for separating hydrocarbon feed streams into aromatics rich fraction and aromatics lean fraction. The organic non-quaternary clathrate salts are characterized by having cations containing less than 16 carbon atoms. Preferred salts are collidinium tri ...


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Ian A Cody, Douglas R Boate, Sandra J Alward, William J Murphy, John E Gallagher, Gary L Harting: Raffinate hydroconversion process (JHT-9601). Exxon Research and Engineering Co, James H Takemoto, November 2, 1999: US05976353 (6 worldwide citation)

A process for producing a high VI/low volatility lubricating oil basestock. The process comprises subjecting the raffinate from a solvent extraction step to a two step, single stage hydroconversion process wherein the first step involves severe hydroconversion of the raffinate followed by a cold hyd ...


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Ian A Cody, Douglas R Boate, Sandra J Linek, William J Murphy, John E Gallagher, Gary L Harting: Raffinate hydroconversion process. ExxonMobile Research and Engineering Company, James H Takemoto, December 4, 2001: US06325918 (2 worldwide citation)

A process for producing a high VI/low volatility lubricating oil basestock and a lubricating oil basestock prepared by said process. The process comprises subjecting the raffinate from a solvent extraction step to a two step, single stage hydroconversion process wherein the first step involves sever ...


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