Abstract:
Data corresponding to the amount of a sale and the account number of the customer are received and stored in an apparatus using a modular cassette tape recorder. A customer''s credit card including machine readable data indicia corresponding to the customer''s account number is placed in a holding station on the apparatus. Then, manually operable means are adjusted to provide machine readable data indicia corresponding to the value of a purchase. The apparatus includes a movable data imprinting and reading head mounted so that it can scan the indicia on the card and also the indicia corresponding to the purchase. This head generates electromagnetic signals corresponding to the indicia and these signals are recorded and stored on the tape in the cassette recorder. A sales ticket at the station and overlying the card is simultaneously imprinted when the indicia is scanned by the head.
Abstract:
DISCLOSED IS A METHOD AND APPARATUS FOR IMPROVING THE EFFICIENCY OF A GAS-SOLID SEPARATION SYSTEM. THE CONVENTIONAL SYSTEM CONTAINING A REGENERATION CHAMBER AND ONE OR MORE SETS OF CYCLONES LOCATED WITHIN THE CHAMBER IS IMPROVED BY PROVIDING EXTENSIVES GAS DISCHARGE TUBE "NECKIN" IN THE CYCLONES AND A FINAL-STAGE SOLIDS DISCHARGE TO AN EXTERNAL, LOW-PRESSURE LOW-COST SEPARATOR. THE INVENTION HAS PARTICULAR APPLICATION IN REDUCING DUST EMISSIONS FROM THE REGENERATOR OF A FLUID CATALYTIC CRACKING UNIT.
Abstract:
There is described the separation of aliphatically-unsaturated hydrocarbons of two to four carbon atoms from gaseous 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 film membrane is contacted with a swelling agent to increase the selectivity of the separation and, preferably, increase permeation by the aliphatically unsaturated hydrocarbon to be separated. The metal ions in the liquid barrier may be, for example, noble metal, nickel, mercurous, cuprous or other metal ions, and mixtures of the metal ions, with or without other cations, may be used. The separation of ethylene from ethane and methane is of particular interest.
Abstract:
The invention is a multiple flare stack support system consisting of a base vertically extended from a horizontal surface, said base having an outer surface and an inner surface. On the outer surface of said base, two or more flare stacks are pivotably mounted in such manner that the top of the flare stack can be conveniently lowered away from the base for maintenance.
Abstract:
THE NUCLEIC ACID CONTENT OF SINGLE-CELL PROTEIN (SCP) MATERIALS IS REDUCED TO A LEVEL ACCEPTABLE IN FOOD PRODUCTS BY PHSIOLOGICAL CONDITIONING OF UNICELLULAR MICROORGANISMS FOLLOWED BY DEGRADATION OF NUCLEIC ACIDS BY ENDOGENOUS NUCLEASES AND LEAKAGE OF DEGRADED PRODUCTS INTO THE SURROUNDING MEDIUM. THE TREATMENT IS ACCOMPLISHED UNDER CONDITIONS OF CONTINOUS SPARGING WITH OXYGEN, CONTROLLED TEMPERATURE STAGES AND BUFFERED PH CONTROL. THERE IS NO SUBSTANTIAL REMOVAL OF PROTEIN MATERIAL FROM THE CELLS.
Abstract:
Fuel oil compositions, containing a pour depressant to provide a pour point below 0*F., exhibit improved pumpability as a result of the inclusion of a minor amount of certain styrenebutadiene copolymers.
Abstract:
IMPACT-RESISTANT POLYMERS WHICH HAVE LOW PERMEABILITY TO GASES AND VAPORS ARE PREPARED BY POLYMERIZING AN OLEFINIC NITRILE, SUCH AS ACRYLONITRILE, WITH A VINYL ETHER, SUCH AS BUTYL VINYL ETHER, TO AT LEAST ABOUT 50% CONVERSION, AND THEN INTRODUCING INTO THE POLYMERIZATION REACTION MEDIUM A CONJUFATED DIENE MONOMER, SUCH AS BUTADIENE-1,3, AND COMPLETING THE POLYMERIZATION REACTION IN THE PRESENCE OF SAID DIENE MONOMER.
Abstract:
THE PROCESS COMPRISES CONTACTING A DESULFURIZED NAPHTHA IN A REFORMING ZONE IN THE PRESENCE OF A HYDROGENCONTAINING GAS WITH A REFORMING CATALYST COMPRISING A GROUP VIII NOBLE METAL, A SMALL AMOUNT OF A METAL PROMOTER, AND A COMBINED HALOGEN ON A CATALYTICALLY ACTIVE ALUMINA AT A PRESSURE OF ABOUT 50 P.S.I.G. TO ABOUT 250 P.S.I.G. AND AN INLET TEMPERATURE OF AT LEAST 970* F. TO PROVIDE A REFORMED EFFLUENT CONTAINING INCREASED AMOUNTS OF HYDROGEN AND GASOLINE BOILING COMPONENTS; SEPARATING THE HYROGEN-CONTAINING GAS FROM THE GASOLINE BOILING COMPONENTS AND PASSING THE HYDROGEN-CONTAINING GAS SEQUENTIALLY THROUGH A NAPHTHA-HYDRODESULFURIZATION ZONE, A GASOIL-HYDRODESULFURIZATION ZONE, AND A HEAVY DISTILLATE-HYDRODESULFURIZATION ZONE. THE NAPHTHA BEING HYDRODESULFURIZED IN THE NAPHTHA-HYDRODESULFURIZATION ZONE IS THE DESULFURIZED NAPHTHA THAT IS EMPLOYED IN THE REFORMING ZONE THE PREFERRED METAL PROMOTER OF THE REFORMING CATALYST IS RHENIUM.
Abstract:
There is described the separation of aliphatically-unsaturated hydrocarbons from gaseous mixtures by the combined use of flooded-cell, liquid barrier permeation and metal complexing techniques. The liquid barrier is disposed as a continuous, distinct or separate liquid phase in contact with a film membrane composite, and the barrier contains complex-forming metal ions in aqueous solution. The film is composed of a hydrophobic membrane having a hydrophilic surface on its feed inlet side. The hydrocarbon feed gas is contacted with the liquid barrier and the presence of the hydrophilic surface on the feed inlet side of the hydrophobic film membrane serves to improve the selectivity of the separation. The metal ions in the liquid barrier may be, for example, noble metal, nickel, mercurous, cuprous or other metal ions, and mixtures of metal ions, with or without other cations, may be used. The separation of ethylene from ethane and methane is of particular interest.
Abstract:
AAN IMPROVED COMPOSITION OF MATTER USEFUL, WHEN PROMOTED BY CERTAIN METALS OR THEIR HYDRIDES, FOR CATALYZING THE POLYMERIZATION OF ETHYLENE AND MIXTURES THEREOF WITH MINOR AMOUNTS OF PROPYLENE TO PRODUCE NORMALLY SOLID, CRYSTALLINE POLYMERS AND COPOLYMERS WHICH IS MADE BY A PROCESS COMPRISING CONTACTING A PARTIALLY REDUCED, ALUMINA-SUPPORTED MOLYBDENUM (VI) COMPOUND WITH A CHLORINE-CONTACTING SUBSTANCE THAT IS CAPABLE OF REMOVING A MAJORITY OF THE MOLYBDENUM, CALCULATED AS MOO3.