Abstract: Olefin complexing reagents comprising Cu(I) carboxylate/BF, adducts in aromatic solvents and a method of preparation therefor, and use of said reagents in the separation of olefins from paraffins are provided.

Abstract: Olefin complexing reagents comprising Cu(I) carboxylate/BF.sub.3 adducts in aromatic solvents and a method of preparation therefor, and use of said reagents in the separation of olefins from paraffins are provided.

Abstract: At least one decomposable molybdenum compound selected from the group consisting of molybdenum dithiophosphates and molybdenum dithiocarbamates is mixed with a hydrocarbon-containing feed stream. The hydrocarbon-containing feed stream containing such decomposable molybdenum compound is then contacted in a hydrovisbreaking process with hydrogen under suitable hydrovisbreaking conditions.

Abstract: This invention comprises improvements to processes for the catalytic cracking of hydrocarbon feedstocks. One such improvement to catalytic cracking processes provides compositions comprising metals passivating agents having an increased degree of stability. These compositions comprise aqueous suspensions of antimony by vinyl copolymers, aqueous suspensions of antimony oxide by diesters of phosphoric acid, or aqueous suspensions of antimony oxide by cellulose derivatives. Another improvement to catalytic cracking processes provides a process for reducing the viscosity of liquid suspensions of metals passivating agents without substantially reducing the stability of the liquid suspension by the utilization of at least two different particle ranges of metals passivating agents. A further improvement to catalytic cracking processes provides an efficient utilization of metals passivating agents by introducing the selected agent into the catalyst regeneration cycle of a catalytic cracking unit.

Abstract: This invention comprises improvements to processes for the catalytic cracking of hydrocarbon feedstocks. One such improvement to catalytic cracking processes provides compositions comprising metals passivating agents having an increased degree of stability. These compositions comprise aqueous suspensions of antimony by vinyl copolymers, aqueous suspensions of antimony oxide by diesters of phosphoric acid, or aqueous suspensions of antimony oxide by cellulose derivatives. Another improvement to catalytic cracking processes provides a process for reducing the viscosity of liquid suspensions of metals passivating agents without substantially reducing the stability of the liquid suspension by the utilization of at least two different particle ranges of metals passivating agents. A further improvement to catalytic cracking processes provides an efficient utilization of metals passivating agents by introducing the selected agent into the catalyst regeneration cycle of a catalytic cracking unit.

Abstract: This invention comprises improvements to processes for the catalytic cracking of hydrocarbon feedstocks. One such improvement to catalytic cracking processes provides compositions comprising metals passivating agents having an increased degree of stability. These compositions comprise aqueous suspensions of antimony by vinyl copolymers, aqueous suspensions of antimony oxide by diesters of phosphoric acid, or aqueous suspensions of antimony oxide by cellulose derivatives. Another improvement to catalytic cracking processes provides a process for reducing the viscosity of liquid suspensions of metals passivating agents without substantially reducing the stability of the liquid suspension by the utilization of at least two different particle ranges of metals passivating agents. A further improvement to catalytic cracking processes provides an efficient utilization of metals passivating agents by introducing the selected agent into the catalyst regeneration cycle of a catalytic cracking unit.

Abstract: This invention comprises improvements to processes for the catalytic cracking of hydrocarbon feedstocks. One such improvement to catalytic cracking processes provides compositions comprising metals passivating agents having an increased degree of stability. These compositions comprise aqueous suspensions of antimony by vinyl copolymers, aqueous suspensions of antimony oxide by diesters of phosphoric acid, or aqueous suspensions of antimony oxide by cellulose derivatives. Another improvement to catalytic cracking processes provides a process for reducing the viscosity of liquid suspensions of metals passivating agents without substantially reducing the stability of the liquid suspension by the utilization of at least two different particle ranges of metals passivating agents. A further improvement to catalytic cracking processes provides an efficient utilization of metals passivating agents by introducing the selected agent into the catalyst regeneration cycle of a catalytic cracking unit.

Abstract: A process for filtering contaminants from oil is provided. A polyalkoxyalkylamine is admixed with the oil in an amount sufficient to improve the filtration rate thereof. The polyalkoxyalkylamine is particularly suitable for use in processes for removing impurities from used lubricating oil wherein the oil is admixed with a treating agent to form a precipitate of the impurities and the impurities are filtered from the oil.

Abstract: A hydrogen donor solvent selected from the group consisting of a full range crude oil and an atmospheric topped crude oil is used in a hydrovisbreaking process. The heavy fraction being processed is heated in the presence of hydrogen and the solvent under suitable hydrovisbreaking conditions. As a result, the amount of heavies in the feed to the hydrovisbreaking process is substantially reduced.

Abstract: Oil containing solid impurities is contacted with a tetraalkylammonium salt wherein the alkyl groups have from 1 to 6 carbon atoms, preferably from 2 to 5 carbon atoms, and solid impurities are then removed from the thus treated oil by filtration.

Abstract: A method for purifying used oil without the use of hydrogen comprising contacting a demetallized used oil with an acid such as sulfuric acid and an adsorbent such as clay.

Abstract: Iron (II) hexacyanocobaltate and ruthenium (III) hexacyanocobaltate have been found to be useful in the catalytic hydrogenation of organic materials.

Abstract: In a process for the re-refinement of used lubricating oil containing fuel fraction, an upgraded fuel fraction is provided by combining fuel fraction with demetallized lubricating oil prior to the hydrotreatment stage.

Abstract: In a process for producing an essentially ash-free oil stock from a lubricating oil containing ash forming components comprising reacting the oil with an aqueous ammonium salt capable of reacting with the ash-containing components and heating the thus treated oil at a temperature in the range of about 300.degree. C. to about 420.degree. C. to increase the amount of the ash-forming components removed, the improvement comprising not exposing the oil to a temperature greater than 200.degree. C. before the oil is passed into a large volume of the oil already at a temperature in the range of about 300.degree. C. to about 400.degree. C.

Abstract: Iron (II) hexacyanocobaltate and ruthenium (III) hexacyanocobaltate have been found to be useful in the catalytic hydrogenation of organic materials.

Abstract: A process and apparatus for separating monoolefins from diolefins comprising contacting a mixture of monoolefins and diolefins with a complexing agent selected from the group consisting of copper(I) salts of sulfonic acids and copper(I) salts of dialkylphosphates and a suitable hydrocarbon solvent for the complexing agent under such conditions that the monoolefins and diolefins form complexes with the complexing agent. The monoolefin complex can be separated from the diolefin complex based either on the relative solubilities of the two complexes in the hydrocarbon solvent for the complexing agent or based on the relative strengths of the two complexes.

Abstract: A process and apparatus for separating monoolefins from other monoolefins comprising contacting a mixture of different monoolefins with a complexing agent selected from the group consisting of copper (I) salts of sulfonic acids and copper (I) salts of dialkyl phosphates and a suitable hydrocarbon solvent for the complexing agent under such conditions that the monoolefins form different strength complexes with the complexing agent. The different strength of the complexes provides a mechanism by which even closely boiling monoolefin isomers may be separated.

Abstract: Iron (II) hexacyanocobaltate and ruthenium (III) hexacyanocobaltate have been found to be useful in the catalytic hydrogenation of organic materials.

Abstract: Synthesis of ammonia employing at least one salt selected from alkali metal-, an alkaline earth metal-, iron- and cobalt hexacyanocobaltate and hexacyanoruthenate on a suitable support and then heating the composition to provide it with suitable activity.

Abstract: Synthesis of ammonia employing at least one salt selected from alkali metal-, an alkaline earth metal-, iron- and cobalt hexacyanocobaltate and hexacyanoruthenate on a suitable support and then heating the composition to provide it with suitable activity.