Abstract: A slurry, such as might be obtained from acid leaching nickeliferous ores having a high iron content, is treated to separate dissolved nickel or cobalt from iron oxide solids. The treatment involves a controlled precipitation of the non-ferrous metal with the aid of calcium sulfide or barium sulfide followed by flotation to recover a high grade concentrate of the non-ferrous metal.

Abstract: An electroplating bath and process for producing a nickel-zinc alloy electrodeposit containing about 8% to 35% nickel characterized in that the bath is essentially a boric acid-containing sulfamate bath maintained at a pH of 2.5 to 4.0 and operated at a cathode current density of about 10 to 25 mA cm.sup.-2 and at a temperature of about 20.degree. C. to 70.degree. C.

Abstract: An essentially planar electrowinning anode made of infiltrated sintered metal, e.g. lead infiltrated sintered titanium having longitudinally extending bars of lead metallurgically bonded to and shielded by the infiltrated metal. Advantageously the anode is made up of at least two strips of lead infiltrated, sintered titanium with a lead bar bridging the junction of the strips.

Abstract: A photoelectrochemical system comprising an n-type photoelectrode, means associated with said photoelectrode for storing charges produced at the interface of the photoelectrode and an electrolyte and a hydrogen storage electrode in contact with a hydrogen-containing electrolyte.

Abstract: A home safety unit having an emergency light system for providing light in the event of a power failure or the detection of a fire condition, and a fire detection system for providing an alarm indicating the existence of a fire. The safety unit is designed to have an aesthetically pleasing appearance and to be installed inconspicuously between the base of an existing light fixture and a wall or ceiling. Installation of the safety unit is a simple process, whether installing it when constructing a new building or by retro-fitting it into an existing building.A modified light switch having parallel impedance across the light switch terminals is installed to provide continuous power to the safety unit when the switch is in its off position. Also included is a low voltage dropout system for disconnecting the auxiliary lights when the battery voltage falls below a certain level and for providing an audible alarm indicating this low voltage condition.

Abstract: An improvement in the production of tube electrodes for lead storage batteries comprising mixing a small amount (0.1 to 3 weight percent) of polytetrafluoroethylene (PTFE) with lead powder, the mixture is heated and shear stresses are applied thereto sufficient to convert substantially all of the PTFE in the mixture to fibrous form and to form a non-powdery dough. The dough is then granulated and the doughy granules about 100.mu. to 500.mu. in major dimension are used for filling tube elctrodes of a lead-acid storage battery.

Abstract: A process for chemical vapor deposition of ruthenium on heat resistant substrates employing ruthenium 1, 3 dione compounds as volatile sources and causing the volatile material to impact on a heated receiving substrate in random fashion in a quiescent, low-pressure atmosphere.

Abstract: Discloses a hydridable compound of the general formula MNi.sub.x-y Fe.sub.y, where M is mischmetal, x is a number between 4.5 and 5.5 and y is a number between about 0.1 and 1.3.

Abstract: A polymeric electroforming mandrel having a metal base, eg. a layer of expanded sheet steel, and a polymeric layer surrounding such base, the layer having inserts of electroconductive polymer interspersed in a continuous area of non-conductive polymer and the layer comprising welded or otherwise hermetically joined units lying in the same plane.

Abstract: A process of producing copper-cored titanium wire of less than 16 gauge comprising cold drawing, in a multiplicity of passes, a titanium tube filled with copper powder.

Abstract: Nickel-base superalloys suitable for the production of cast parts for use at elevated temperatures in corrosive atmospheres contain in weight percent about 14% to 22% chromium, 5% to 25% cobalt, 1% to 5% tungsten, 0.5% to 3% tantalum, 2% to 5% titanium, 1% to 4.5% aluminum, the sum of the titanium plus aluminium being 4.5 to 9% up to 2% niobium, 0.31% to 1.2% boron, up to 3.5% molybdenum, up to 0.5% zirconium, up to 0.2% in total of yttrium or lanthanum or both, up to 0.1% carbon, the balance apart from impurities being nickel. Advantageously the alloys are controlled such that%Ti+%Al+%Nb+0.5(%Ta)+0.2(%Cr)=11.2 to 12.4.

Abstract: An electrode for water electrolyzers comprising a steel base having a sintered porous layer of nickel, nickel-iron or iron on the steel base and having an electrochemically formed oxidic layer or hydrogen saturation associated with the sintered layer.

Abstract: A circuit for a home safety unit having an emergency light system for providing light in the event of a power failure or when a fire is detected, and a fire detection system for providing an audible alarm indicating the existence of a fire. The circuit includes a battery which is constantly being charged and a low voltage responsive system for indicating a low voltage condition on the battery. A latching system causes the emergency light to be turned off when this low voltage condition is reached, and to remain off until the battery is recharged.

Abstract: A hydrogen-storage vessel having particles of hydrideable alloy in a multiplicity of closed containers permeable to hydrogen within the vessel to prevent localized pressure effects acting against the walls of the vessel.

Abstract: An improvement in the process of flotation of sulfide minerals from basic gangue involving employing in association with a collector an alkylamidohydroxylated quaternary amine salt.