Abstract: Lithium diorganoamide compositions are prepared in ethers with an ether to diorganoamide mole ratio of from about 2.0 to about 5.0. These compositions have enough thermal stability generally due to the addition of stabilizers that the decomposition rate for lithium diorganoamide is less than 0.20% per day. Preferred stabilizers are LiBr, LiCl, LiI or Li-tert-butoxide, or combinations thereof. A preferred diorganoamide is lithium diisopropylamide.

Abstract: The present invention relates to a novel process for producing, from a lithium-containing brine, a low boron lithium carbonate compound. This compound is particularly useful for conversion to a highly pure lithium chloride for the production of lithium metal by electrolysis.

Abstract: A method for preparing a poorly soluble lithium amides in greater concentration by preparing a mixture of lithium amides wherein one of said lithium amides is soluble and another lithium amide is less soluble, and the reagent compositions formed thereby.

Abstract: A composition of at least one lithium cycloalkyl imide of the formula: ##STR1## wherein R and R' each represent a hydrogen or alkyl of 1 to 4 carbon atoms, and x and y are integers of 1 to 3.

Abstract: A method for preparing lithium amides in a monocyclic aromatic solvent and the reagent compositions formed thereby.

Abstract: A process for the preparation of ethynyl carbinols of the formula: ##STR1## wherein R" is hydrogen, a substituted or unsubstituted aliphatic or aromatic hydrocarbon, R'" is a substituted or unsubstituted aliphatic or aromatic hydrocarbon or R" and R'" together to the carbon atom to which they are joined represent a steroid, which comprises the steps ofA. reacting in a solvent system comprising an aromatic hydrocarbon, at least one lithium alkylamide selected from the group consisting of: ##STR2## wherein R is a hydrogen or lower alkyl, R' is hydrogen, lower alkyl, a substituted or unsubstituted aliphatic, alicyclic or aromatic hydrocarbon, x is an integer of 2 to 8, y and z are each 0 to 1, with acetylene to form a monolithium acetylideB. reacting in a solvent system comprising an aromatic hydrocarbon, the monolithium acetylene from Part A with a ketone of the formula R"R'"C.dbd.O, wherein R" and R'" are as hereinbefore defined, and thenC.

Abstract: The present invention relates to a novel process for producing, from a lithium-containing brine, a substantially pure lithium chloride product. This product is particularly useful for the production of lithium metal by electrolysis.

Abstract: There is provided a novel active-oxygen rich lithium, boron, oxygen compound having the empirical formulaLiOH.multidot.0.5Li.sub.2 O.sub.2 .multidot.LiBO.sub.5and a method for making the same.

Abstract: Compacted graphite (CG) cast iron is obtained in the inmold casting process employing as an additive an alloy comprising 1.5-3 percent magnesium, 10-20 percent titanium, 40-80 percent silicon, 0-2 percent rare earth, 0-0.5 percent calcium, 0-2 percent aluminum and balance iron.

Abstract: The location of a leak in a pond liner made of a sheet of electrically insulating material, such a polyvinyl chloride, supported by an electrically conductive medium, an example of which is a salar, is determined by immersing a power electrode in an electrically conductive fluid within the pond and a second or ground electrode in the supporting medium and creating therewith an electric potential between the pond fluid and supporting medium. A detector, having a pair of spaced probe electrodes which are electrically connected, is introduced to the fluid near the power electrode with the ends of the probe electrodes adjacent the liner. The detector is rotated until a maximum current reading is obtained by a galvanometer electrically connected to the detector probes. With the probes so aligned with respect to the power electrode, the probes are cause to traverse the liner and the location of a leak is noted by a sharp change in the galvanometer reading as one of the probes passes over the leak.

Abstract: A stabilizing inoculant for gray iron which increases the tensile strength thereof while reducing chill containing as essential elements chromium, silicon, and rare earths (primarily cerium).

Abstract: A boron alloying additive for continuous casting of boron steel having the desired hardenability without tundish nozzle blockage. The additive comprises 0.25-3.0% boron, 2.5-40% rare earth metals (RE), 6-60% titanium, and the balance iron. The additive may also contain silicon, calcium, manganese, and zirconium. In the additive the weight ratios of Ti to B and (Ti+RE) to B are 20:1-60:1 and 30:1-90:1, respectively.

Abstract: A magnesium ferrosilicon alloy for in-mold nodulization of ductile iron consisting of 5-15%, by weight of magnesium, 60-80% silicon, 0.1-1.5% calcium, 0.1-3.0% aluminum, 0-2.5% rare earth, and balance iron.

Abstract: Lithium chloride containing small amounts of inorganic and/or organic impurities is purified by heating the lithium chloride above about 200.degree. C., cooling the compound to ambient temperatures and extracting it with isopropanol, separating the liquid and solid phases, removing the isopropanol and recovering lithium chloride of high purity.

Abstract: Highly pure lithium chloride suitable for use in production of lithium metal by electrolysis is obtained directly from impure natural or other lithium chloride brines by an integrated process in which the brine is first concentrated by solar energy to a lithium chloride concentration of about 3%, after which the brine is treated with lime and calcium chloride to convert such impurities as boron, magnesium and sulfate to a calcium borate hydrate, magnesium hydroxide and calcium sulfate dihydrate, respectively, and separating the precipitated calcium sulfate dihydrate from the brine. The brine is then further concentrated to 40% or more lithium chloride by means of solar or other energy, during which concentration step the calcium borate hydrate, magnesium hydroxide and calcium sulfate dihydrate precipitate from the brine. The highly concentrated brine is subjected to evaporation at a temperature above 101.degree. C. to produce anhydrous lithium chloride which is further heated to a temperature of 200.degree.

Abstract: Boron, as well as magnesium and sulfate impurities, are removed from or at least substantially reduced in a lithium containing brine to minimize lithium losses on further concentration of the brine by adding to the brine an aqueous slurry of slaked lime and a solution of calcium chloride to form a calcium borate hydrate, magnesium hydroxide and calcium sulfate dihydrate, the last named compound being precipitated and separated from the brine. On further concentration of the brine, calcium boron hydrate and magnesium hydroxide precipitate and they are also removed from the brine. In an alternate procedure, the pH of the brine is adjusted to 8.0-8.4 by addition of hydrochloric acid to form a calcium borate hydrate, which on further evaporation, is also separated from the brine. The brine is then concentrated further to recover lithium values.

Abstract: By evaporation employing solar energy, a brine having a lithium chloride concentration greater than that of a brine whose vapor pressure under ambient conditions is substantially equal to the partial pressure of moisture in the atmosphere above the brine is obtained. The process by which such result is accomplished involves the use of a pond system consisting of a series of shallow ponds of relatively large surface area to which a dilute lithium chloride brine is introduced. The flow of the brine through the pond system is controlled so that, at a point intermediate the points of introduction of the brine to and withdrawal of the brine from the pond system, the concentration of the brine is such that its vapor pressure under ambient conditions is substantially equal to the partial pressure of the moisture in the atmosphere immediately above the pond system.

Abstract: An effective alloying additive for adding small (5-30 ppm) quantities of boron to steel which is continuously cast, said additive containing 0.5-1.5% boron, 8-15% calcium, 8.5-20% titanium, 40-60% silicon, up to 1.5% of aluminum, and balance iron.The additive makes possible continuous casting of boron steel without the tundish nozzle-clogging problem associated with aluminum-killed steel, and the cast steel contains sufficient soluble boron to provide a good hardenability effect.

Abstract: A continuous integrated process for the production of lithium hyroxide monohydrate and high purity lithium carbonate of large average particle size comprising converting impure lithium carbonate to lithium hydroxide by a causticization step, separating precipitated calcium carbonate from the resulting lithium hydroxide solution, precipitating lithium hydroxide monohydrate from a major portion of the lithium hydroxide solution and recovering same, introducing carbon dioxide or lithium carbonate to the remaining minor portion of the lithium hydroxide solution to precipitate additional calcium as calcium carbonate, separating the precipitated calcium carbonate from the lithium hydroxide solution, introducing carbon dioxide to the lithium hydroxide solution to precipitate high purity lithium carbonate of large average particle size, separating and recovering said lithium carbonate from the resulting lithium carbonate solution, and recycling said lithium carbonate solution to said causticization step.

Abstract: Manganese is alloyed into aluminum using a solid compact prepared by blending finely divided particles comprising beta manganese with aluminum particles and then compacting the mixture into a readily useable form such as a briquette. The resultant briquette provides rapid dissolution of the beta manganese in the aluminum and improved manganese recoveries. The beta manganese may be prepared by heating manganese to 1305.degree.-1990.degree. F. followed by water quenching and crushing to obtain a product of controlled particle size having a reduced percentage of fines.