21 |
Ammonia storage for on-vehicle engine |
US11692373 |
2007-03-28 |
US20080241033A1 |
2008-10-02 |
Gholam-Abbas Nazri |
Ammonia is used as precursor source of hydrogen fuel in an on-vehicle internal combustion engine. Ammonia is stored as, for example, a ligand in an on-vehicle transition metal composition. Upon demand for hydrogen by the vehicle's engine control system, ammonia is expelled as a gas from some of the composition and the ammonia gas is dissociated into a mixture of hydrogen and nitrogen and delivered as a fuel-containing mixture to the engine. In a preferred embodiment, the hydrogen is used as a supplement to gasoline as a fuel for engine operation. |
22 |
Battery-grade nickel hydroxide and method for its preparation |
US708655 |
1996-09-05 |
US5788943A |
1998-08-04 |
Boyko Aladjov |
Nickel hydroxide for use in an electrode of a rechargeable battery is prepared by controlled precipitation from a neutralized reaction mixture of a nickel salt and an alkali metal hydroxide. The controlled precipitation results in the formation of generally spherical particles having a high density. Pulsed or constant ultrasonic energy is applied to the mixture or to a portion thereof during the reaction to cause an alteration in the micro and macrostructures and the surface characteristics of the particles. These alterations result in enhanced performance characteristics of the resultant electrode. |
23 |
Stripping a solution containing molybdenum, tungsten and/or vanadium
values |
US582365 |
1984-02-22 |
US4515757A |
1985-05-07 |
Gale L. Hubred; Dean A. Van Leirsburg |
A method of stripping an organic extraction solvent containing quaternary alkyl ammonium complexes. The extraction solvent is contacted with an aqueous stripping solution having at least 75 g/l bicarbonate ion, while maintained at between pH 7 and 9 at a temperature of no more than 50.degree. C. |
24 |
Recovering metals from spent hydroprocessing catalysts |
US519180 |
1983-08-01 |
US4500495A |
1985-02-19 |
Gale L. Hubred; Dean A. Van Leirsburg |
A process for recovering the metal values from spent hydroprocessing catalyst particles. The metal values will include at least one metal of Group VIII of the Periodic Table and at least one metal of Group Vb or Group VIb of the Periodic Table. The spent catalyst particles are first roasted at between 400.degree. C. and 600.degree. C. and then contacted with a first aqueous solution of ammonia and an ammonium salt forming a first pregnant liquor. The once-leached spent hydroprocessing catalysts are contacted with a second aqueous solution of sulfur dioxide forming a second pregnant liquor. The metal values are precipitated from the second pregnant liquor with hydrogen sulfide and the precipitate is roasted with unroasted spent hydroprocessing catalysts. The metal values of Group Vb and Group VIb in the first pregnant liquor are transferred into a first organic solution by liquid ion exchange. The first organic solution is stripped by an aqueous strip solution and the metal values separated by sequential precipitation. The metals of Group VIII are separated and purified by serial liquid ion exchange. |
25 |
Leaching cobalt from spent hydroprocessing catalysts with sulfur dioxide |
US422813 |
1982-09-24 |
US4432953A |
1984-02-21 |
Gale L. Hubred; Dean A. Van Leirsburg |
A process for enhancing recovery of cobalt from spent hydroprocessing catalysts when the spent catalyst particles are first roasted at between 400.degree. C. and 600.degree. C. and then contacted with a first aqueous solution of ammonia and an ammonium salt to recover nickel, cobalt, molybdenum and vanadium. The once-leached spent hydroprocessing catalysts are contacted with a second aqueous solution of sulfur dioxide. The metal values are precipitated with hydrogen sulfide and the precipitate is roasted with unroasted spent hydroprocessing catalysts. |
26 |
Separation of cobalt from nickel in ammoniacal solutions using
8-hydroxyquinolines |
US632201 |
1975-11-17 |
US4012483A |
1977-03-15 |
William S. Kane; Paul H. Cardwell |
This invention provides a method for selectively extracting cobalt value from an aqueous ammoniacal solution containing dissolved nickel and cobalt. The solution is contacted, at a pH of at least about 8.5, with an organic solution of a hydrocarbon-substituted 8-hydroxyquinoline while maintaining the pH of the aqueous solution at least at about 8.5. by adding ammonia or ammonium hydroxide. There are also dissolved in the aqueous solution ammonium ion and halide ion. The cobalt value is selectively extracted into the organic solution which is then separated from the aqueous solution; the cobalt can be stripped from the organic solution. |
27 |
Process for recovering nickel and/or cobalt ammonium sulfate from solutions containing nickel and/or cobalt values |
US23706651 |
1951-07-16 |
US2647820A |
1953-08-04 |
ARTHUR FORWARD FRANK |
|
28 |
고체 암모니아 저장 및 수송 물질 |
KR1020077002781 |
2005-08-03 |
KR1020070057143A |
2007-06-04 |
크리스텐센,클라우스,비드; 조한네센,츄; 쿠아데,울리치; 뇌르스코브,겐스,케레트; 쇠렌센,라스무스,진크 |
A solid ammonia storage and delivery material A solid ammonia storage material comprising: an ammonia absorbing salt, wherein the ammonia absorbing salt is an ionic salt of the general formula: Ma(NH3)nXz, wherein M is one or more cations selected from alkaline earth metals, and/or one or more transition metals, such as Mn, Fe, Co, Ni, Cu, and/or Zn, X is one or more anions, a is the number of cations per salt molecule, z is the number of anions per salt molecule, and ri is the coordination number of 2 to 12, wherein M is Mg provides a safe, light-weight and cheap compact storage for ammonia to be used in the automotive industry. |
29 |
Solid ammonia storage and transport material |
JP2007524179 |
2005-08-03 |
JP2008508186A |
2008-03-21 |
イェンス・ケーレット・ネルスコヴ; ウルリヒ・クアード; クラウス・ヒヴィード・クリステンセン; トゥー・ヨハネッセン; ラスムス・ズィンク・セレンセン |
Disclosed is a method for the selective catalytic reduction of NOx in waste/exhaust gas by using ammonia provides by heating one or more salts of formula Ma(NH3)nXz, wherein M represents one or more cations selected from alkaline earth metals and transition metals, X represents one or more anions, a represents the number of cations per salt molecule, z represents the number of anions per salt molecule, and n is a number of from 2 to 12, the one or more salts having been compressed to a bulk density above 70% of the skeleton density before use thereof. |
30 |
Method for producing a metal hydroxide |
JP33096794 |
1994-12-09 |
JP3529115B2 |
2004-05-24 |
アルミン・オルブリヒ; デイルク・ナウマン; トマス・リヒター; ビルフリート・グトクネヒト; ヨゼフ・シユモル |
|
31 |
JPH0350805B2 - |
JP17617583 |
1983-09-22 |
JPH0350805B2 |
1991-08-02 |
GEERU ERU FUBURETSUDO; DEIIN EI BAN REIAAZUBAAGU |
|
32 |
Recovery of metals from waste hydrogenation catalyst |
JP17617583 |
1983-09-22 |
JPS5980737A |
1984-05-10 |
GEERU ERU FUBURETSUDO; DEIIN EI BAN REIAAZUBAAGU |
|
33 |
Refining method for nickel |
JP9923981 |
1981-06-26 |
JPS581028A |
1983-01-06 |
TAMAI YASUKATSU; OKABE TAIJIROU; TOMITA AKIRA |
PURPOSE: To refine nickel in simple stages with high efficiency by reducing nickel oxide in ore then adding this as an aq. nickel ammine salt soln. to coal, and recovering nickel from the residues obtained by gasifying such coal.
CONSTITUTION: Nickel ore which is ground to small grain sizes is roasted by a reducing gas at about 400W800°C, whereby nickel oxide is reduced to metallic nickel. Nickel is leached in the presence of O
2 in an aq. ammonical ammonium carbonate soln. or the like in the presence of ammonia, whereby an aq. nickel ammine salt soln. is obtained. Coal is impregnated with the aq. nickel ammine salt soln. formed in this way to adsorb nickel ammine salt on the coal, after which the ammonia separated and further gasifying agents such as steam, CO
2, H
2, O
2 and the like are introduced to gasify the coal catalytically at relatively low temps. above about 450°C, whereby the fuel gas consisting of H
2, CO, CH
4, etc. is obtained. The nickel ammine salt turns to metallic nickel and form solid residues together with the ashes in the coal.
COPYRIGHT: (C)1983,JPO&Japio |
34 |
JPS50100000A - |
JP8253373 |
1973-07-19 |
JPS50100000A |
1975-08-08 |
|
|
35 |
JPS4837358A - |
JP8943272 |
1972-09-06 |
JPS4837358A |
1973-06-01 |
|
|
36 |
A SOLID AMMONIA STORAGE AND DELIVERY MATERIAL |
PCT/DK2005000516 |
2005-08-03 |
WO2006012903A3 |
2006-03-23 |
CHRISTENSEN CLAUS HVIID; JOHANNESSEN TUE; QUAADE ULRICH; NOERSKOV JENS KEHLET; SOERENSEN RASMUS ZINK |
A solid ammonia storage and delivery material A solid ammonia storage material comprising: an ammonia absorbing salt, wherein the ammonia absorbing salt is an ionic salt of the general formula: Ma(NH3)nXz, wherein M is one or more cations selected from alkaline earth metals, and/or one or more transition metals, such as Mn, Fe, Co, Ni, Cu, and/or Zn, X is one or more anions, a is the number of cations per salt molecule, z is the number of anions per salt molecule, and ri is the coordination number of 2 to 12, wherein M is Mg provides a safe, light-weight and cheap compact storage for ammonia to be used in the automotive industry. |