Abstract: An underwater hydrogen generator can include a watertight reaction housing enclosing a metering chamber. The metering chamber can have an upper portion that terminates at a piston opening, and a lower portion that merges into a funnel, which can further terminate at a metering opening. The metering chamber can be filled with an acid accelerator, and the watertight reaction void can be partially filled with NaBH4 in solution. The generator can further include a seawater float valve that can be in fluid communication between the external environment, the metering chamber and the void defined by the reaction housing. The float valve, metering chamber and reaction housing can cooperate to generate hydrogen when said generator is submerged, by allowing seawater to contact both the acid accelerator and the NaBH4. The size of the metering opening can determine the rate at which acid accelerator is added to the NaBH4 solution.

Abstract: Elemental fluorine is often manufactured electrochemically from a solution of KF in hydrogen fluoride and contains varying amounts of entrained electrolyte salt in solid form as impurity. The invention concerns a process for the purification of such impure elemental fluorine by contact with liquid hydrogen fluoride, e.g., in a jet gas scrubber or by bubbling the raw fluorine through liquid hydrogen fluoride. After this purification step, any entrained hydrogen fluoride is removed by adsorption, condensing it out or both. After passing through a filter with very small pores, the purified fluorine is especially suited for the semiconductor industry as etching gas or as chamber cleaning gas in the manufacture of semiconductors, TFTs and solar cells, or for the manufacture of micro-electromechanical systems (“MEMS”).

Abstract: A process for production of an alkali metal borohydride. The process comprises three steps. The first step is combining a phenyl ester of a boric acid ester precursor with a compound of formula MAlH4-31 x(OPh)x, where x is from zero to three, M is an alkali metal and Ph is phenyl; to produce an alkali metal borohydride and Al(OPh)3. The second step is separating sodium borohydride from Al(OPh)3. The third step is heating Al(OPh)3 to produce diphenyl oxide.

Abstract: A method for synthesizing ammonia borane includes (a) preparing a reaction mixture in one or more solvents, the reaction mixture containing sodium borohydride, at least one ammonium salt, and ammonia; and (b) incubating the reaction mixture at temperatures between about 0° C. to about room temperature in an ambient air environment under conditions sufficient to form ammonia borane. Methods for synthesizing ethylenediamine bisborane, and methods for dehydrogenation of ethylenediamine bisborane are also described.

Abstract: A CO2 recovery system includes an absorber 2 and a regenerator 3. The absorber 2 includes a CO2 absorbing section 21 and at least one water-washing section 22. The CO2 absorbing section 21 allows flue gas 101 to come into contact with a basic amine compound absorbent 103 so that the basic amine compound absorbent 103 absorbs CO2 in the flue gas 101. The at least one water-washing section 22 allows the decarbonated flue gas 101A in which the amount of CO2 has been reduced in the CO2 absorbing section 21 to come into contact with wash water 104A and 104B to reduce the amounts of the basic amine compounds entrained in the decarbonated flue gas 101A. The regenerator 3 releases the CO2 from the basic amine compound absorbent 103 containing CO2 absorbed therein.

Abstract: A compound of formula M(AlH3OR1)y, wherein R1 is phenyl substituted by at least one of: (i) an alkoxy group having from one to six carbon atoms; and (ii) an alkyl group having from three to twelve carbon atoms; wherein M is an alkali metal, Be or Mg; and y is one or two.

Abstract: A process for production of a borohydride compound. The process comprises combining a compound comprising boron and oxygen with an adduct of alane.

Abstract: The invention provides new methods for the synthesis of isotopically enriched metal borohydrides, metal tetrahydroundecaborate salts, and decaborane from isotopically enriched 10B-boric acid or 11B-boric acid. The invention is particularly useful for synthesis of isotopically enriched sodium or lithium borohydride, MB11H14 (where M is Li, Na, K, or alkylammonium), and decaborane.

Abstract: A compound of formula M(AlH3OR1)y, wherein R1 is phenyl substituted by at least one of: (i) an alkoxy group having from one to six carbon atoms; and (ii) an alkyl group having from three to twelve carbon atoms; wherein M is an alkali metal, Be or Mg; and y is one or two.

Abstract: A process for production of a borohydride compound M(BH4)y. The process has three steps. The first step combines a compound of formula (R1O)yM with aluminum, hydrogen and a metallic catalyst containing at least one metal selected from the group consisting of titanium, zirconium, hafnium, niobium, vanadium, tantalum and iron to produce a compound of formula M(AlH3OR1)y, wherein R1 is phenyl or phenyl substituted by at least one alkyl or alkoxy group; M is an alkali metal, Be or Mg; and y is one or two; wherein the catalyst is present at a level of at least 200 ppm based on weight of aluminum. The second step combines the compound of formula M(AlH3OR1)y with a borate, boroxine or borazine compound to produce M(BH4)y and a byproduct mixture containing alkali metal and aluminum aryloxides. The third step separates M(BH4)y from the byproduct mixture.

Abstract: A method for preparing M2B12H12, wherein M is an alkali metal, from an alkali metal borohydride and an amine borane. The method includes a step of allowing the alkali metal borohydride to react with excess amine borane in contact with a complexing agent.

Abstract: This idea relates to the synthesis of salts of dodecahydrododecaborate B12H12 (2-). In the proposed process a metal hydride is reacted with an alkyl borate in the presence of a Lewis base to produce Lewis base-borane compex, which is thermally decomposed to produce salts of B12H12 (2-), while alkyl borare is recovered from the reaction by-product and is recycled.

Abstract: The invention provides new methods for the synthesis of isotopically enriched metal borohydrides, metal tetrahydroundecaborate salts, and decaborane from isotopically enriched 10B-boric acid or 11B-boric acid. The invention is particularly useful for synthesis of isotopically enriched sodium or lithium borohydride, MB11H14 (where M is Li, Na, K, or alkylammonium), and decaborane.

Abstract: The invention provides new methods for the synthesis of isotopically enriched metal borohydrides, metal tetrahydroundecaborate salts, and decaborane from isotopically enriched 10B-boric acid or 11B-boric acid. The invention is particularly useful for synthesis of isotopically enriched sodium or lithium borohydride, MB11H14 (where M is Li, Na, K, or alkylammonium), and decaborane.

Abstract: A process for production of a borohydride compound. The process comprises combining a compound comprising boron and oxygen with an adduct of alane.

Abstract: A process for production of a borohydride compound. The process comprises the steps of: (a) combining a boron-containing salt, at least one of a metal and its hydride; wherein the metal is Be, Mg, Ca, Sr, Ba, Al, Ga, Si or a transition metal; and a solvent in which the borohydride compound is soluble; (b) grinding a mixture formed in step (a) to form the borohydride compound; and (c) separating a solution comprising the borohydride compound.

Abstract: A method and apparatus for forming a chemical hydride is described and which includes a pseudo-plasma-electrolysis reactor which is operable to receive a solution capable of forming a chemical hydride and which further includes a cathode and a movable anode, and wherein the anode is moved into and out of fluidic, ohmic electrical contact with the solution capable of forming a chemical hydride and which further, when energized produces an oxygen plasma which facilitates the formation of a chemical hydride in the solution.

Abstract: A process for production of a borohydride compound. The process comprises the steps of: (a) combining a boron-containing salt, at least one of a metal and its hydride; wherein the metal is Be, Mg, Ca, Sr, Ba, Al, Ga, Si or a transition metal; and a solvent in which the borohydride compound is soluble; (b) grinding a mixture formed in step (a) to form the borohydride compound; and (c) separating a solution comprising the borohydride compound.

Abstract: A method of producing a chemical hydride is described and which includes selecting a composition having chemical bonds and which is capable of forming a chemical hydride; providing a source of a hydrocarbon; and reacting the composition with the source of the hydrocarbon to generate a chemical hydride.

Abstract: A process for production of sodium borohydride. The process comprises the steps of: (a) combining a boric acid ester, B(OR)3 and sodium aluminum hydride to produce sodium borohydride and Al(OR)3; and (b) combining Al(OR)3 and sulfuric acid to produce alum and ROH.

Abstract: The present invention relates to compositions and processes for producing borohydride compounds. In particular, the present invention provides efficient processes and compositions for the large-scale production of borohydride compounds.

Abstract: A process for production of sodium borohydride. The process comprises the steps of: (a) combining a boric acid ester, B(OR)3 and sodium aluminum hydride to produce sodium borohydride and Al(OR)3; and (b) combining Al(OR)3 and sulfuric acid to produce alum and ROH.

Abstract: Processes for synthesizing borohydride compounds with reduced energy requirements are disclosed.

Abstract: The invention relates to a process for the preparation of an alkali metal borohydride.According to this process, a mixture of an alkali metal hydride, boric anhydride and a hydrogenation catalyst such as Raney nickel is raised to a temperature of 250.degree. to 300.degree. C. under a hydrogen atmosphere. This gives an alkali metal borohydride, such as lithium-n borohydride, in accordance with the following reaction:4LiH+B.sub.2 O.sub.3 .fwdarw.LiBH.sub.4 +Li.sub.3 BO.sub.3,with a yield which can reach 93.3% at a temperature of 300.degree. C.

Abstract: A process for producing acidic boratozirconium chloride sols which comprises: reacting a zirconium compound with a boron compound in molar ratios of B/Zr of 0.3-1.2 together with a compound of a metal M, the metal M being selected from the group consisting of divalent, trivalent, tetravalent and pentavalent metals in molar ratios of M/Zr of about 0.01-1 in water in the presence of chloride ions in molar ratios of Cl/Zr of not less than about 1.The acidic boratozirconium chloride sol may be converted to basic boratozirconium sols by reacting the acidic sol with a basic carbonate compound such as ammonium carbonate.The sols, either acidic or basic, are readily gelled by contact with a dehydration solvent such as methanol or actone.The gel is calcined at relatively low temperatures to provide zirconia which is either very pure or stabilized in varied degrees.

Abstract: A process for granulating crystalline fertilizer borate to produce a product with exceptionally satisfactory physical and chemical properties in regard to bulk blending with other fertilizer blend materials and also in regard to storage and handling properties. The process involves specialized procedures in processing the solid feedstock and granulating the solids with use of a small amount of acid solution. Product drying is not required.

Abstract: A process for improved three-way emissions control comprising the steps of contacting the emissions stream with a first catalyst consisting of rhodium supported on a refractory substrate to effect the selective chemical reduction of nitric oxide to nitrogen, said rhodium being present in an amount of at least about 0.002% by weight of the catalyst, said emissions stream being then contacted with a second catalyst consisting of at least one of the noble metals selected from the group of platinum and palladium, said noble metal being present in a small but effective amount to accomplish the oxidation of the hydrocarbons and carbon monoxide left in said emissions stream, said process being accomplished without the addition of oxygen to said emissions stream.

Abstract: This invention provides a method for the recycling of lithium borate to lithium borohydride which can be reacted with water to generate hydrogen for utilization as a fuel. The lithium borate by-product of the hydrogen generation reaction is reacted with hydrogen chloride and water to produce boric acid and lithium chloride. The boric acid and lithium chloride are converted to lithium borohydride through a methyl borate intermediate to complete the recycle scheme.

Abstract: This invention provides a method for the recycling of lithium borate to lithium borohydride which can be reacted with water to generate hydrogen for utilization as a fuel. The lithium borate by-product of the hydrogen generation reaction is reacted with hydrogen chloride and water to produce boric acid and lithium chloride. The boric acid and lithium chloride are converted to lithium borohydride through a diborane intermediate to complete the recycle scheme.