Abstract:
MELAMINE-FORMALDEHYDE MOLDING RESINS CONTAINING FROM ABOUT 10 TO ABOUT 900 PARTS OF ALUMINA HYDRATE PER HUNDRED PARTS OF RESIN ARE OUTSTANDING FOR PREPARING MOLDED RESIN ARTICLES REQUIRING EXCEPTIONAL HEAT AND LIGHT STABILITY AND A MINIMUM OF POST-MOLD SHRINKAGE.
Abstract:
Disclosed is a method for collecting hydrocarbon vapors before they are dispersed in the atmosphere surrounding a site where loading or unloading of flammable fuels occur. The collected vapors are monitored to determine when the air-hydrocarbon vapor mixture is near or in the combustible range. When it is determined that the mixture is near or in the combustible range, a hydrocarbon gas such as propane is injected into the mixture to remove the danger of explosion or fire. The collected vapors are held in a holding tank and, preferably, are periodically burned.
Abstract:
PROTEIN-CONTAINING SINGLE CEL MICRO-ORGANISMS ARE PREPARED INTO TEXTURIZED PRODUCTS BY A PROCESS IN WHICH AN AQUEOUS SLURRY OF PROTEIN-CONTAINING MICROBIAL CELLS IS MIXED WITH AN ACID OR ALKALINE ACTIVATING AGENT TO ACTIVATE THE CELL MIXTURE AFTER WHICH THE ACTIVEATED MIXTURE OF PROTEIN-CONTAINING MICROBIAL CELLS AND ACTIVATING AGENT IS PASSED THROUGH AN ACID BATH, IF AN ALKALINE ACTIVATING AGENT IS EMPLOYED, OR THROUGH AN ALKALINE BATH, IF AN ACID ACTIVATING AGENT IS EMPLOYED, THE ACID BATH HAVING A PH IN THE RANGE OF ABOUT 3.5 TO 5.5 AND THE ALKALINE BATH HAVING A PH IN THE RANGE OF ABOUT 7.5 TO 10.5. THE TEXTURIZED PROTEIN PRODUCT PREPARED BY THE PROCESS IS SUITABLE FOR USE AS AN ADDITIVE TO OR A SUBSTITUTE FOR CONVENTIONAL FOODS. IN ADDITION, THE PROTEIN PRODUCTS PREPARED BY THE PROCESS ARE SUITABLE, FOR EXAMPLE, IN THE PREPARATION OF BIO-DEGRADABLE CONTAINERS, PACKAGING MATERIALS, AND UTENSILS.
Abstract:
COPOLYMER COMPOSITIONS OF THE AMIDE-IMIDE VARIETY ARE MADE BY POLYMERIZING PRIMARY DIAMINES WITH AZOBENZENETETRACARBOXYLIC ACID DIANHYDRIDE AND AROMATIC POLYCARBOXYLIC ACID ANHYDRIDE COMONOMERS. THE POLYMERS ARE LINEAR, SHAPABLE, HIGHLY-SOLUBLE COMPOSITIONS WHICH AS FORMED CONTAIN AMIDE ACID GROUPS. THE POLYMERS IN DRY POWDER FORM ARE USEFUL FOR COMPRESSION MOLDING AND IN SOLUTION FORM ARE USEFUL FOR ADHESIVE COATINGS, POROUS MATERIAL IMPREGNATING, CASING FILMS, PREPARING FIBERS AND INSULATING COATINGS. THE POLYMERS ARE HEAT-MODIFIABLE CONVERTING TO THE IMIDE FORM AT ELEVATED TEMPERATURES PRODUCING COMPOSITIONS HAVING EXCELLENT SOLVENT RESISTANCE, THERMAL STABILITY AND ELECTRICAL PROPERTIES.
Abstract:
The catalyst comprises a hydrogenation component, a small amount of rhenium, and a small amount of gallium on a solid catalytic support comprising a porous refractory inorganic oxide. The rhenium and the gallium may be present either in the elemental form or as compounds. The preferred hydrogenation component is a Group VIII noble metal and the preferred porous refractory inorganic oxide is a catalytically active alumina. The reforming process comprises contacting a petroleum hydrocarbon stream in a reforming zone under reforming conditions and in the presence of hydrogen with the above-described catalyst. In one embodiment, the process comprises contacting a partially-reformed hydrocarbon stream in a reforming zone under reforming conditions and in the presence of hydrogen with the above catalyst. In another embodiment, the process comprises contacting a naphtha in a reforming zone under reforming conditions and in the presence of hydrogen with the above catalyst. In a third embodiment, the process comprises contacting the petroleum hydrocarbon stream in a first reforming zone under reforming conditions and in the presence of hydrogen with a first reforming catalyst to produce a first reformate and subsequently contacting the first reformate in a second reforming zone under reforming conditions and in the presence of hydrogen with a second reforming catalyst, said second reforming catalyst being the catalyst described in the preceding paragraph.
Abstract:
THE PROCESS COMPRISES CONTACTING THE FEEDSTOCK IN A FIRST REACTION ZONE WITH A FIRST CATALYST IN THE PRESENCE OF HYDROGEN AND UNDER HYDROPROCESSING CONDITIONS TO PRODUCE A FIRST EFFLUENT AND CONTACTING SAID FIRST EFFLUENT IN A SECOND REACTION ZONE WITH A SECOND CATALYST IN THE PRESENCE OF HYDROGEN AND UNDER HYDROPROCESSING CONDITIONS. THE FIRST CATALYST COMPRISES A MEMBER SELECTED FROM THE GROUP CONSISTING OF A METAL OF GROUP VI-A AND A METAL OF GROUP VIII, OXIDES OF SAID METALS, SULFIDES OF SAID METALS, AND MIXTURES, THEREOF ON A SOLID CATALYTIC SUPPORT COMPRISING AN OXIDE OF ZINC OXIDE AND CATALYSTICALLY ACTIVE ALUMINA AND HAS AN AVERAGE PORE DIAMETER OF ABOVE 50 A. TO ABOUT 100 A. THE SECOND CATALYST COMPRISES A HYDROGENATION COMPONENT AND A SOLID NON-ACIDIC OR WEAKLY-ACIDIC SUPPORT AND HAS AN AVERAGE PORE DIAMETER THAT IS GREATER THAN THE AVERAGE PORE DIAMETER OF THE FIRST CATALYST. FEEDSTOCKS MAY BE SELECTED FROM THE GROUP CONSISTING OF PETROLEUM HYDROCARBON, RESIDUA, SHALE OIL, LIQUIFIED COAL, OIL FROM TAR SANDS, AND COMBINATIONS THEREOF.
Abstract:
There is described the separation of aliphatically unsaturated hydrocarbons from mixtures by the combined use of liquid barrier permeation and metal complexing techniques. The liquid barrier is in contact with a film membrane, and the barrier contains complex-forming metal ions in aqueous solution. The metal ions may be, for example, noble metal, mercuric, cuprous or other metal ions, and mixtures of these metal ions, with or without other cations, may be used. The separation of ethylene from ethane and methane is of particular interest.
Abstract:
THE METHOD COMPRISES ADDING AN INHIBITOR TO A HYDROFINISHED DISTILLATE OR A HYDROFINISHED RAFFINATE FROM A DISTILLATE PRIOR TO THE TIME THAT SAID DISTILLATE OR SAID RAFFINATE IS CONTACTED WITH AIR. THE INHIBITOR IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF HINDERED PHENOLS, AMINES, AND METAL COMPLEXES OF MANNICH CONDENSATION PRODUCTS FROM PHENOLS, ALDEHYDES, AND POLYAMINES. IF THE DISTILLATE HAS BEEN HYDROFINISHED IN A TWO-STAGE PROCESS UNDER RELATIVELY SEVERE CONDITIONS, AN INHIBITOR MAY BE ADDED TO THE EFFLUENT FROM THE FIRST STAGE AND AN INHIBITOR MAY BE ADDED TO THE PRODUCT FROM THE SECOND STAGE.
Abstract:
Mass transfer operations between two or more materials which are contacted within a system made up of a combination of selectively arranged sub-contacting units which are so combined as to provide for countercurrent phase contacting while having some cocurrent phase contacting within the combination.
OIL SOLUTIONS OF BORON-CONTAINING DERIVATIVE OF PRODUCTS OF MANNICH REACTION BY CONDENSATION OF REACTANTS (1) A HIGH MOLECULAR WEIGHT ALKYL-SUBSTITUTED HYDROXYAROMATIC COMPOUND WHOSE ALKYL SUBSTITUENT HAS UPWARD FROM 40 TO 20,000 CARBON ATOMS, (2) A LOWER ALKYL-SUBSTITUTED PHENOL WHOSE ALKYL GROUP HAS 2 TO 20 CARBON ATOMS, (3) AN AMINE WHICH CONTAINS A HN WHEREIN THE BORON CONTENT OF SAID DERIVATIVE OF THE MANNICH REACTION EXPRESSED AS A BORON TO NITROGEN WEIGHT RATIO (B/N) IS IN THE RANGE OF 0.1-5.5:1.0 AND SAID BORON DERIVATIVE IS PRESENT IN WEIGHT CONCENTRATIONS OF 0.05 TO 70 PERCENT AS SOLUTE IN MINERAL OIL OF THE LUBRICATING OIL TYPES. SUCH OIL SOLUTIONS ARE USEFUL AS CRANKCASE LUBRICATING COMPOSITIONS, OR AS CONCENTRATES FOR FORTIFYING USED CRANKCASE LUBRICATING COMPOSITION AND FOR PREPARATION OF CRANKCASE LUBRICATING COMPOSITON. SUCH SOLUTIONS PROVIDE DETERGENCY, DISPERSANCY AND ANTIOXIDANT PROPERTIES NECESSARY FOR CRANKCASE OIL FUNCTION UNDER HIGH SEVERITY ENGINE OPERATION.