Abstract: A method of applying flavorings and edible fats on to deep-frozen foods with free apportionability so as to obtain a food product ready for consumption merely by adding water and applying heat, characterized in that the intended flavoring and aromatic substances are prepared in a separate mixture and swelling substances are incorporated into this mixture, which swelling substances are capable of binding, as a result of their swelling characteristics, the free water occurring during the mixing with the deep-frozen products and also in the end product, to such an extent that a free-flowing mixture is obtained.

Abstract: An apparatus for electrostatically concentrating mineral particles includes a pair of oppositely charged collector electrodes spaced apart from each other and oriented so that a flow path is formed between them where material containing mineral particles can fall by gravity through at least a major portion of the flow path and the mineral particles will be charged and attracted to the electrodes. Each electrode includes a collector surface formed of a dielectric material which defines at least a substantial portion of the flow path. Ionizers are located midway between the collector electrodes for charging mineral particles at a plurality of locations along the flow path.

Abstract: An animal waste collection and disposal device of the type which contains a litter material into which animal waste matter is deposited including a pair of opposed receptacles. Each of the receptacles has wall portions defining a litter-receiving chamber which is open over at least a portion of one major planar face of the receptacle, with the open portion of each receptacle being in facing relation to the open portion of the other receptacle. A screen member is positioned in interposed relation between the opposed receptacles. Tracks on the screen member slidably receive the receptacles to interlockingly detachably engage the receptacles with the screen member to permit inversion of the assembled receptacles to, in turn, transfilter the granular litter material through the screen. Abutment members limit the longitudinal sliding movement of the receptacles relative to the screen member to align the receptacles relative to the screen member and relative to each other.

Abstract: Disclosed is an improved froth flotation process wherein preselected solid particles are selectively separated under froth flotation conditions as a froth phase from remaining solid feed particles as an aqueous phase in the presence of a collector amine. Such improvement comprises conducting said froth flotation in the presence of an effective proportion of an amine oxide promoter. The preferred feed particles comprise sylvinite ore.

Abstract: A rotor-type electrostatic separator is described with means to remove a boundary layer of entrained air from the rotating collector surface prior to depositing on the surface a particulate feed for particle separation. Following the feed hopper a new boundary layer of air with particles in it is entrained on the rotating collector surface. Means are also provided to shield from the action of corona wind the region immediately following the feed hopper where the particles enter the newly-forming boundary layer.

Abstract: A process for recovery of phosphates in ores with silico-carbonate gangue:(1) overall flotation of the ore with a collector comprising essentially a phosphoric ester in an amount and under conditions capable of causing the silicate compounds to pass into the flotation residue, and in recovering a float product containing the phosphate and carbonate compounds.(2) conditioning the float product in an acid medium for a length of time sufficient to cause the flotation of carbonates, while the phosphates constituting the valuable product desired, remain in the residue.

Abstract: Hop extracts useful in the preparation of anactinic or light stable malt beverages are obtained by a method which does not use organic solvents. The extracts are obtained by first treating a crude hop extract containing humulone with an aqueous reducing solution, heating the resulting mixture to form reduced isohumulone, acidifying the reaction mixture to form an aqueous phase and an organic phase, and then adjusting the temperature to facilitate the separation of the two phases. The organic phase which is obtained contains the desired isomerized and reduced humulone and it can be used per se as an anactinic brew kettle flavoring additive for beer or ale. In a preferred embodiment, the organic phase is further treated with an amount of an aqueous KOH solution sufficient to neutralize the reduced isohumulone and to form both an aqueous phase and a solid phase.

Abstract: A method of recovering copper from ores containing copper as atacamite/paratacamite by froth flotation is described which comprises utilizing as a collecting or flotation agent, a combination of two chelating agents having the formulaR--C(OH).dbd.N--OR.sup.1andR.sup.2 OCSSXwherein R is an aliphatic or aromatic group containing from 5 to 10 carbon atoms,R.sup.1 is hydrogen or an alkali metal,R.sup.2 is an alkyl group containing up to 10 carbon atoms, andX is an alkali metal.The method of the invention is useful in treating copper ores containing very small percentages by weight of copper.

Abstract: An apparatus for sizing or separating different types of particulate material such as grain, seeds and the like without the need for replacing the sizing screens includes a movable diverter disposed between upper and lower sets of screens. When the diverter is in a first position, material passing through a first sizing screen is directed to the top of a second sizing screen and material which has not passed through the first sizing screen is directed to a discharge pan. When the diverter is in a second position, material which has passed through the first sizing screen is directed toward a discharge pan and material which has not passsed through the first sizing screen is directed toward a second sizing screen.

Abstract: In a method of and assembly for sorting a granular two- or multi-component mixture, containing a number p of granular, polydisperse solid components to be sorted out the particles of which differ in density and/or shape and have at least partially overlapping particle size and settling rate (particulate characteristics) distributions the mixture, in which the components are present sortable, is subjected to two dry classification steps in which different particulate characteristics of the particles are decisive.

Abstract: The use of primary aliphatic ether amines as silica collectors in the concentration of minerals by the froth flotation process. More specifically, the use of mixtures of primary methyl branched aliphatic ether amines and the partially-neutralized salts thereof as flotation reagents. In further aspect, the use of mixtures of 3-isooctoxypropyl monoamine and 3-isodecoxypropyl monoamine and/or the partially-neutralized acetate salts thereof as collectors for silica in the beneficiation of oxidized taconite ores.

Abstract: A method of dividing a mixture of pieces or fragments of different materials and different sizes, e.g. fragments of domestic wastes, into two or more fractions, enriched with respect to one or more materials, in which method the mixture is charged to the lower part of an inclined shaking table arranged for rotary movement about two shafts at an amplitude and a speed of rotation so adjusted that large pieces or fragments of material of high elasticity and/or rigidity are caused to bounce on the shaking table and, as a result of the inclination of said table, bounce down to the lower end thereof and away from said lower end to form a first fraction, while pieces or fragments of material which lack, or have only slight rigidity and/or elasticity are moved as a result of the rotary movement of the shaking table, and are discharged from the upper end of said table to form a second fraction.

Abstract: A process for separating molybdenite from copper and iron ores is disclosed. A copper concentrate containing molybdenite is treated during an attritioning stage with a surfactant which is an alkyl ester of sodium and/or calcium succinic or succinamic acids and a molybdenite concentrate is recovered by flotation. The molybdenite concentrate contains at least 90% of the original molybdenite and less than 5% of the undesirable ores.

Abstract: An adjustable vortex finder and kit in a cyclone for adjusting the flow of light fractions from the top outlet of a cyclone comprising a vortex finder, a kit comprising a plurality of sleeve attached by welding with the vortex finder so that each sleeve of the kit may replace any other sleeve. All sleeves of the kit have the same length. The lower edge of each sleeve is even with the top edge of the cyclone dish or is above the top edge of the cyclone by a distance no greater than 0.26B where B is the inner diameter of the cyclone bowl. A collar having an inner opening receives the sleeves of the kit. Each sleeve has a different diameter than the other sleeve in the set of sleeves forming the kit and these diameters vary in dimension between the 0.3B up to 0.5B wherein B is the inner diameter of the cyclone bowl.

Abstract: A process for the separate recovery of phosphate and carbonate minerals from finely-divided phosphate-carbonate-silicate ores or concentrates with a carbonate to phosphate ratio of over 1 is disclosed, in which an anionic collector agent is added to an aqueous slurry of these ores and concentrates, the slurry is then exposed to froth-flotation in order to separate a silicate-bearing residue from phosphate-carbonate concentrate, thereafter(a) the combined phosphate-carbonate concentrate is either treated with a base in order to remove the collector-agent coatings from the surfaces of the mineral particles, whereafter the combined concentrate is froth-flotated with a cationic collector agent using a depressing agent for carbonate in order to recover the phosphate concentrate and the carbonate concentrate separately, or(b) the aqueous slurry to which the anionic collector agent has been added and which has been froth-flotated is treated with sulfur dioxide or carbon dioxide in order to inactivate the collector-a

Abstract: A flotation agent comprising both an aromatic hydrocarbon oil and a dihydrocarbyl trithiocarbonate improves the collecting and separating efficiency of an ore froth flotation process as compared to using any one of the ingredients of the flotation agent alone. The flotation agent and process are particularly useful for the recovery of molybdenum minerals.

Abstract: Stable carotenoid solutions useful as colorants in foods and which are dispersible in water or soluble in oil-based products or emulsions are disclosed.

Abstract: The electromagnetic separator comprises a cylindrical housing with a conical bottom, a circular electromagnetic system embracing the separator housing on the outside, a cylindrical pulp feeding device with a paddle agitator, a system of disks, a wash water feeding device, a nonmagnetic product discharging device and a magnetic product discharge branch.In order to increase the efficiency of separator operation by providing the appropriate hydrodynamic conditions of pulp flow, the separator comprises a system of disks with holes. The disks are spaced apart and installed one under the other directly underneath the pulp feeding device. The bottom disk is provided with a wash water feeding device constructed in the form of a circular element with tangential branches, there being a gap around the outer side of said circular element.The paddle agitator is located inside the bottom part of the pulp feeding device whose top part is provided with tangential branches.

Abstract: Vibrating surface apparatus comprising a base member, vibratory motion producing member, a first spring coupling the vibratory motion producing member to the base member; a first surface adapted to be vibrated; a second spring coupling said surface to the vibratory motion producing member; and a third spring coupling the surface to the base member.

Abstract: An arcuate shaped magnetic system is housed in a fixed cryostat within a rotating drum. A slurry containing magnetizable particles is charged into an operating area defined by the magnetic system at the lower part of the drum and magnetic particles adhering to the drum are removed as the drum rotates the same to a discharge location. The cryostat has an outer wall which conforms to the shape of the drum and houses a sector-shaped refrigeration tank. The refrigeration tank has an arcuate wall section conforming to the shapes of the cryostat wall and the drum and is positioned in close proximity to the outer cryostat wall only in the operating area in order to minimize inward heat transfer.