Abstract: A tablet of compacted detergent powder comprises an anionic detergent-active compound, a detergency builder, and optionally other detergent ingredients. The tablet is the compaction product of a particulate mixture of:(a) from 2 to 40 wt % of a first particulate component comprising from 20 to 100 wt % of anionic detergent-active compound,(b) from 60 to 98 wt % of other ingredients, comprising from 0 to 3 wt % of anionic detergent-active compound.
Type:
Grant
Filed:
July 12, 1991
Date of Patent:
July 6, 1993
Assignee:
Lever Brothers Company, Division of Conopco, Inc.
Inventors:
Alan J. Fry, Michael J. Garvey, Geoffrey Newbold, Jonathon Osler, John M. Robb, Douglas Wraige
Abstract: Disclosed is an electrocatalyst which comprises an inorganic support and four-element alloy essentially consisting of 10 to 39 atomic percent of platinum, 30 to 5 atomic percent of nickel, 30 to 5 atomic percent of cobalt and 30 to 3 atomic percent of manganese supported on the inorganic support. The electrocatalyst possesses excellent anti-poisoning against carbon monoxide.
Type:
Grant
Filed:
February 24, 1992
Date of Patent:
July 6, 1993
Assignees:
Tanaka Kikinzoku Kogyo K.K., Stonehart Associates Inc.
Abstract: An automatic dishwasher detergent composition having improved chlorine stability is formulated as a linear viscoelastic, pseudoplastic, gel-like aqueous product of exceptionally good physical stability, low bottle residue, low cup leakage, and improved cleaning performance, Linear viscoelasticity and pseudoplastic behavior is attributed by incorporation of cross-linked high molecular weight polyacrylic acid type thickener. Potassium to sodium weight ratios of at least 1/1 minimize amount of undissolved solid particles to further contribute to stability and pourability. Control of incorporated air bubbles functions to provide the product with a bulk density of about 1.32 to 1.40 g/cc which roughly corresponds to the density of the liquid phase. Stearic acid or other fatty acid or salt further improve physical stability.
Abstract: A contact material of a fluorine-containing compound of at least one of Sr, Ba, Sc, Y or La, as well as such contact material compositions themselves, is provided.
Abstract: A catalyst useful for hydroprocessing a hydrocarbon-containing oil contains at least one hydrogenation component on an amorphous, porous refractory oxide containing delta alumina. The catalyst is prepared by impregnating support particles having a narrow pore size distribution and a median pore diameter greater than about 185 angstroms with a solution containing a precursor of the hydrogenation components, followed by drying and calcining. The catalyst is useful for promoting a number of hydrocarbon hydroprocessing reactions, particularly hydrogenative desulfurization, demetallation and denitrogenation, and most particularly, hydrodemetallation of residuum-containing oils.
Abstract: The present invention relates to a fluidized-bed catalyst for propylene ammoxidation to produce acrylonitrile, which consists of silica support and a composite of the formulaA.sub.a B.sub.b C.sub.c Ni.sub.d Co.sub.e Na.sub.f Fe.sub.g Bi.sub.h M.sub.i Mo.sub.j O.sub.xwherein A is potassium, rubidium, cesium samarium, thallium, or mixture thereof; B is manganese, magnesium, strontium, calcium, barium, lanthanum, rare earth, or mixture thereof; C is phosphorus, arsenic, boron, antimony, chromium, or mixture thereof; M is tungsten, vanadium, or mixture thereof. The catalyst of the present invention is highly active and selective for preparing acrylonitrile, more specifically, is suitable for catalyzing the reaction between air and propylene at a rather low ratio hence to greatly enlarge the processing capacity of the reactor. By using the catalyst of the present invention, the processing capacity of the reactor increases by 10-15 percent compared with that using conventional catalysts.
Abstract: The invention relates to a nickel on alumina catalyst which has been promoted with sulfur, having an atomic S/Ni ratio of between 0.06 and 0.10, an atomic Ni/Al ratio of between 2 and 10, and a particle size distribution, defined as (d.sub.90-10)/d.sub.50, of between 0.4 and 1.5, d.sub.50 ranging from 4 to 20 .mu.m.
Abstract: A hydroprocessing catalyst and process of using such catalyst wherein such catalyst has at least one hydrogenation metal deposited on an inorganic oxide support and is further characterized by a surface area of greater than about 220 m.sup.2 /g, a pore volume of about 0.23-0.30 cc/g in pores greater than about 600 Angstroms radius, an average pore radius of about 30-70 Angstroms in pores less than 600 Angstroms, and an incremental pore volume curve with a maximum at about 25-50 Angstroms radius.
Type:
Grant
Filed:
March 25, 1992
Date of Patent:
June 22, 1993
Assignee:
Amoco Corporation
Inventors:
Frederick T. Clark, Albert L. Hensley, Jr., Simon G. Kukes, David C. Arters
Abstract: Coated catalyst particulates, well adopted for the oxidation of olefins into .alpha.,.beta.-unsaturated aldehydes, e.g., for the oxidation of propylene into acrolein, and the coating layer of which comprising a catalytically active phase including a catalytically effective amount of bismuth and iron molybdate and dopant amounts of phosphorus and potassium, are prepared by providing a calcined and ground catalytically active intermediate composition devoid of phosphorus and potassium values, coating this intermediate composition onto a particulate support substrate comprising rough-surfaced inert and solid spheres, also coating phosphorus and potassium values onto the particulate support substrate, and then calcining the support particulates thus coated.
Abstract: The present invention relates to a novel route for the synthesis of methanol, and more specifically to the production of methanol by contacting synthesis gas under relatively mild conditions in a slurry phase with a catalyst combination comprising reduced copper chromite and basic alkali salts or alkaline earth salts. The present invention allows the synthesis of methanol to occur in the temperature range of approximately 100.degree.-160.degree. C. and the pressure range of 40-65 atm. The process produces methanol with up to 90% syngas conversion per pass and up to 95% methanol selectivity. The only major by-product is a small amount of easily separated methyl formate. Very small amounts of water, carbon dioxide and dimethyl ether are also produced. The present catalyst combination also is capable of tolerating fluctuations in the H.sub.2 /CO ratio without major deleterious effect on the reaction rate. Furthermore, carbon dioxide and water are also tolerated without substantial catalyst deactivation.
Type:
Grant
Filed:
March 26, 1991
Date of Patent:
June 22, 1993
Assignee:
The University of Pittsburgh
Inventors:
John W. Tierney, Irving Wender, Vishwesh M. Palekar
Abstract: A process for producing the precursor of a precipitated catalyst for the sub.3 synthesis, based on Fe, Al, Co and K oxides, which comprises the steps of:(A) preparing an aqueous solution of water-soluble compounds of Fe, Al and Co--adding iron as a water-soluble ferrous salt of an organic acid--and causing, by addition of an alkaline precipitating solution, the co-precipitation of the corresponding (Fe, Al and Co) hydroxides, which still contain iron in the ferrous form;(B) oxidizing the hydroxide suspension prepared according to point (A) until divalent iron and trivalent iron are in a ratio to each other which ranges from 0.20 to 0.50;(C) operating an alkaline doping with a potassium compound and heating in an inert atmosphere up to above 850.degree. C.
Type:
Grant
Filed:
May 29, 1991
Date of Patent:
June 22, 1993
Assignee:
Ministero dell'Universita' e della Ricerca Scientifica e Tecnologica
Inventors:
Franco Montino, Luigi Balducci, Francesco Ferrero, Nicola Pernicone
Abstract: This invention relates to electroless nickel plating of metals which are normally noncatalytic for electroless nickel initiation. It is especially useful in the electronics industry, such as for production of electroless nickel/electroless gold tabs or surface mount pads on printed circuit boards, and for use in electroless nickel plating over copper for radiofrequency interference shielding. More particularly, it comprises ammonium halide salt solutions of a palladium salt with another Group VIII precious metal salt and acid and optionally an alkali halide salt for effectively and completely catalyzing the initiation of electroless nickel plating on copper substrates.
Abstract: Peanut hulls are processed into dust free granules suitable for use as chemical carriers and moisture absorbent materials by being pulverized to a powder. This is done by milling the hulls through a screen having interstices no larger than 3/32 inch. The powder is then compacted into compact masses that are divided into granules and screened.
Abstract: A liquid detergent composition containing anionic detergent, nonionic detergent, excess caustic and high amounts of water is disclosed, together with processes for its preparation and use.
Type:
Grant
Filed:
December 16, 1991
Date of Patent:
June 15, 1993
Assignee:
Lever Brothers Company, Division of Conopco, Inc.
Abstract: Automatic dishwasher detergent composition is formulated as a linear viscoelastic, pseudoplastic, gel-like aqueous product of exceptionally good physical stability, low bottle residue, low cup leakage, and improved cleaning performance, Linear viscoelasticity and pseudoplastic behavior is attributed by incorporation of cross-linked high molecular weight polyacrylic acid type thickener. Potassium to sodium weight ratios of at least 1/1 minimize amount of undissolved solid particles to further contribute to stability and pourability. Control of incorporated air bubbles functions to provide the product with a bulk density of about 1.26 to 1.40 g/cc which roughly corresponds to the density of the liquid phase. Stearic acid or other fatty acid or salt further improve physical stability.
Abstract: A supported catalyst and a method of making a supported catalyst useful in the dehydrogenation of light paraffins. This catalyst comprises 0.3 to 5 wt. % Ga and 0.1 to 5 wt. % Pt on a spinel type support material characterized by the formula Mg.sub.x Al.sub.2 O.sub.3+x where x is a number from about 0.1 to 1.1. The improvement comprises the incorporation of a water soluble Mg salt into said support prior to the impregnation of Pt and Ga.
Abstract: A monolithic, structured catalyst for the preparation of aldehydes. Alcohol is converted to a corresponding aldehyde by partial oxidation of the alcohol using the catalyst which includes an active catalytic material and a monolithic, inert carrier for the same. The active material includes oxides of molybdenum and oxides of chromium, vanadium, aluminum, iron, tungsten, manganese and mixtures thereof.
Type:
Grant
Filed:
March 12, 1992
Date of Patent:
June 8, 1993
Assignee:
Haldor Topsoe A/S
Inventors:
Bent Sarup, Poul E. H. Nielsen, Viggo L. Hansen, Keld Johansen
Abstract: A zirconia-based catalyst is prepared by mulling a mixture of a zirconia source and a solvent, which mixture has a solids content of from 20% by weight to 60% by weight, and extruding the mixture.
Abstract: An SiO.sub.2 -containing copper oxide-chromium oxide catalyst is obtained through heat treatment of copper oxide and chromium oxide, or of a precursor compound convertible into copper oxide or chromium oxide in the presence of an SiO.sub.2 component; it is characterized by the fact that, after the heat treatment,(a) the intensity ratio between the X-ray diffraction lines (XRD reflexes) of the copper oxide with d=0.232 nm and of the CuCr.sub.2 O.sub.4 spinel with d=0.240 nm formed through heat treatment, determined as the ratio of the reflex amplitudes, is 0.7 to 4.0:1, and(b) the copper mass, which is dissolved by stirring 10 g of the catalyst in 100 ml of 10 weight percent acetic acid at 20.degree. C. for 2 minutes, amounts to a maximum of 200 mg.
Type:
Grant
Filed:
November 21, 1991
Date of Patent:
June 8, 1993
Assignee:
Sud-Chemie Aktiengesellschaft
Inventors:
Michael Schneider, Gerd Maletz, Karl Kochloefl
Abstract: Reticulated ceramic or metal substrate coated with Cobalt compounds, noble metals or mixtures thereof are superior catalysts for the oxidation of ammonia to produce nitric oxide.