21 |
白金コロイドの製造方法およびその方法によって製造された白金コロイド |
JP2017545759 |
2016-12-22 |
JP6298580B2 |
2018-03-20 |
岩城 廣至 |
|
22 |
フィッシャー・トロプシュ合成のCo−Ru/Al2O3廃触媒からの金属コバルト、ルテニウムおよびアルミニウムの包括的回収方法 |
JP2014560232 |
2013-03-04 |
JP5852270B2 |
2016-02-03 |
▲劉情情▼; ▲韓▼奕▲銘▼; 宋▲徳▼臣; ▲許▼莉; ▲頼▼波 |
|
23 |
フィッシャー・トロプシュ合成のCo−Ru/Al2O3廃触媒からの金属コバルト、ルテニウムおよびアルミニウムの包括的回収方法 |
JP2014560232 |
2013-03-04 |
JP2015513614A |
2015-05-14 |
▲劉情情▼; ▲韓▼奕▲銘▼; 宋▲徳▼臣; ▲許▼莉; ▲頼▼波 |
【課題】フィッシャー・トロプシュ合成のCo-Ru/Al2O3廃触媒から金属コバルト、ルテニウム、アルミニウムを包括的に回収する方法を提供する。【解決手段】最初に、廃触媒から炭化水素を除去し、還元処理を行い、アルカリ融解工程でコバルトスラグを効果的に除去し、次に、コバルトスラグは酸浸出、シュウ酸またはシュウ酸アンモニウムによるコバルト沈殿、シュウ酸コバルトの還元、硝酸による金属コバルトの溶融等の工程を経てCo(NO3)2・6H2Oを得る。アルカリ融解、脱イオン水による浸出等の工程により溶出したルテニウム酸塩は、エタノールによる還元、濃塩酸による溶解、減圧下での蒸留等の工程を経て、高純度の&bgr;-RuCl3・xH2O生成物を得る。水酸化アルミニウムは、CO2炭酸化、反応温度、CO2の流速、反応終了時点のpH値などのパラメータを制御することによりメタアルミン酸塩溶液から調製され、水酸化アルミニウムがか焼されて、アルミナが得られる。このアルミナは、国際基準において第1級のアルミナ品質要件を達成する品質を備える。得られる生成物は、回収率が高く、コバルト≧97%、ルテニウム≧95%、アルミニウム≧92%である。【選択図】図1 |
24 |
Method and device for separating by distillation ruthenium as RuO4 from a solution of a ruthenium salt containing |
JP2009019936 |
2009-01-30 |
JP5383233B2 |
2014-01-08 |
マイアー ホルスト; グレール マティアス; アルト ハンス−ヨアヒム; パッツェルト ペーター; フォン アイフ ヘルマン; ツェル ベルント |
|
25 |
METHOD AND DEVICE FOR SEPARATING RUTHENIUM AS RuO4 FROM RUTHENATE-CONTAINING SOLUTION BY DISTILLATION |
JP2009019936 |
2009-01-30 |
JP2009179551A |
2009-08-13 |
MEIER HORST; GREHL MATTHIAS; ALT HANS-JOACHIM; PATZELT PETER; VON EIFF HERMANN; ZELL BERND |
<P>PROBLEM TO BE SOLVED: To provide a method for separating ruthenium as RuO<SB>4</SB>from a ruthenate-containing solution by distillation, in which an oxidizing agent is used as efficiently as possible with a high yield. <P>SOLUTION: Disclosed is a method for separating ruthenium by distilling RuO<SB>4</SB>from ruthenate-containing solutions comprising the steps of I. treating the ruthenate-containing solution with an oxidizing agent, II. distilling off the RuO<SB>4</SB>formed, III. absorbing the RuO<SB>4</SB>from step II in hydrochloric acid, wherein the oxidizing agent is recycled into step I following step III. <P>COPYRIGHT: (C)2009,JPO&INPIT |
26 |
Method of manufacturing ammonium hexachlororuthenate and ruthenium powder, as well as ammonium hexachlororuthenate |
JP2008008907 |
2008-01-18 |
JP2009161418A |
2009-07-23 |
NAGAI HIFUMI; KONO YUJI |
PROBLEM TO BE SOLVED: To reduce the moisture content to a degree having no problem for pulverizing property when a ruthenium powder is manufactured by baking an ammonium hexachlororuthenate manufactured by adding ammonium chloride to a hydrochloric acid solution of ruthenium.
SOLUTION: The crystallized ammonium hexachlororuthenate having a water content of 10 mass% or less is obtained by, after holding the hydrochloric acid solution of ruthenium at a temperature of 80-95°C for three hours or longer, adding ammonium chloride to it while stirring at the rotation of a stirrer of 200 revolutions per minute or more and holding it at a temperature of 85-95°C for one hour or longer while stirring, to produce an ammonium hexachlororuthenate precipitate, and filtering the precipitate.
COPYRIGHT: (C)2009,JPO&INPIT |
27 |
Apparatus for removing ruthenium from solution containing platinum group |
JP2006266166 |
2006-09-29 |
JP2008081824A |
2008-04-10 |
NAGAI TOUBUN |
<P>PROBLEM TO BE SOLVED: To provide a distillation apparatus which effectively removes ruthenium when removing ruthenium from a solution containing a platinum group by oxidation distillation. <P>SOLUTION: This removing apparatus is directed at selectively removing ruthenium by adding an oxidizing agent into a solution containing ruthenium and a platinum group to convert ruthenium into ruthenium tetroxide. The removing apparatus has air-blowing pipes installed such that the lowest part of the blowing outlet of at least one pipe can be set at a height of 5 to 20 mm from the bottom of a reaction tank. The removing method includes decompressing the inner part of the reaction tank and blowing air into the reaction tank. Then, the blown air can effectively stir the solution without allowing ruthenium tetroxide having large specific gravity to stay in the bottom, and ruthenium can be easily removed. <P>COPYRIGHT: (C)2008,JPO&INPIT |
28 |
Method of manufacturing a rhodium chloride acid |
JP5499387 |
1987-03-10 |
JPH0822748B2 |
1996-03-06 |
HIROSE AKIO |
|
29 |
Recovery of catalytically active component and carrier from waste catalyst |
JP1229688 |
1988-01-22 |
JPH01189348A |
1989-07-28 |
OKUYA TAKESHI; NAKADA YOSHINORI; SUZUKI MASAAKI; AKIYAMA TAKEO |
PURPOSE: To recover a catalytically active substance and carrier in the form of chloride, effectively from a waste catalyst comprising a catalytically active material deposited on a porous hydrocarbon carrier by treating the waste catalyst by chlorination.
CONSTITUTION: Waste catalyst comprising a carrier consisting of porous hydrocarbon produced from SiC powder derived from an Si-accumulating biomass such a rice hulls and/or rice straw, etc., contg. a catalytically active substance such as Pt, Rh, etc., deposited thereon, is chlorinated by exposing the waste catalyst to gaseous chlorine at 600W1000°C in the presence of a K salt such as KCl, etc. Thus, porous SiC is transformed to CCl
4 and recovered in the form of gas. On one hand, the catalytically active substance is also chlorinated and recovered by dissolving it in water or dil. HCl. By this method, the catalytically active substance and the carrier are recovered at high efficiency and the materials are reutilized.
COPYRIGHT: (C)1989,JPO&Japio |
30 |
Recovery of viii group noble metals |
JP3570282 |
1982-03-06 |
JPS57167939A |
1982-10-16 |
UORUTAA SHII DABITSUDOSON; BENJIYAMIN EFU FUIIZERUMAN |
|
31 |
Preparation of bis(acetonitrile) palladium dichloride |
US512623 |
1995-08-08 |
US5681976A |
1997-10-28 |
Terry E. Krafft |
A method for the production of tetrachloropalladic acid and bis(acetonitrile) palladium dichloride is described. Palladium metal is reacted with concentrated hydrochloric acid and chlorine to produce the acid which is converted to bis(acetonitrile) palladium dichloride by reaction with acetonitrile. |
32 |
Dissolution of platinum group metals from materials containing said
metals |
US845068 |
1992-03-03 |
US5304359A |
1994-04-19 |
Willem D. C. Duyvesteyn; Houyuan Liu; Saskia Duyvesteyn |
A method is provided for the dissolution of at least one precious metal selected from the group consisting of platinum group metals, gold and silver. The method comprises subjecting a material containing at least one of the precious metals to dissolution with a sulfuric acid solution maintained at a pH at least sufficient to complex the precious metal with bromide ions in the presence of an oxidizing agent, the amount of bromide ions in the solution being at least sufficient to form a soluble complex of the precious metal. The amount of oxidizing agent is at least sufficient to maintain a redox potential at least high enough to convert the precious metal to an ionic form conducive to forming a soluble bromide complex thereof. |
33 |
Recovery of catalysts as W, Mo or Ru oxychlorides in liquid phase
chlorination of pyiridine compounds |
US632182 |
1984-07-19 |
US4532111A |
1985-07-30 |
Paula L. Humphreys; Jonathan A. Okorley |
Metal chloride catalysts employed in liquid phase chlorination reactions are recovered by treating the reaction mass with oxygen or air to form solid metal oxychloride compounds which can be separated and reused. |
34 |
Recovery of rhodium from carbonylation residues |
US241193 |
1981-03-06 |
US4341741A |
1982-07-27 |
Walter C. Davidson; Benjamin F. Fieselmann |
Residues are formed in the carbonylation of esters or ethers, particularly in the production of acetic anhydride or ethylidene diacetate. Such residues contain noble metal, typically rhodium, used as a catalyst, which must be recovered before the residues can be disposed of. The rhodium values are freed from the residues by treatment with amines, preferably primary aliphatic amines and/or hydrazine, thereby enabling the rhodium to be extracted by subsequent contact with an aqueous halogen acid. |
35 |
Treatment of carbonylation residues |
US241180 |
1981-03-06 |
US4340569A |
1982-07-20 |
Walter C. Davidson; Richard V. Porcelli |
Residues are formed in the carbonylation of esters or ethers, particularly in the production of acetic anhydride or ethylidene diacetate. When such residues contain noble metal, typically rhodium, used as a catalyst, the noble metals must be recovered before the residues can be disposed of. The metal values are freed from the residues by treatment with amines, thereby enabling the rhodium to be extracted by subsequent contact with an aqueous halogen acid. The residues are pretreated with alkanols and concentrated by evaporation to improve the effect of such amine treatments. |
36 |
Synthesis of pentafluorides |
US45498374 |
1974-03-26 |
US3929601A |
1975-12-30 |
ASPREY LARNED B; PAINE JR ROBERT T |
The reactions of uranium, molybdenum, rhenium, osmium and iridium hexafluorides with hydrogen gas in the presence of ultraviolet radiation or with silicon powder in an anhydrous HF slurry provide especially useful, high yield syntheses of pure pentafluorides.
|
37 |
Process for the manufacture of palladium (ii) halides from metallic palladium |
US3427123D |
1967-02-24 |
US3427123A |
1969-02-11 |
FERNHOLZ HANS; SCHMIDT HANS-JOACHIM |
|
38 |
Regeneration of metal-containing reaction components and process for the production of palladium chloride |
US19760862 |
1962-05-25 |
US3210152A |
1965-10-05 |
HELDEN ROBERT VAN; TAEKE JONKHOFF |
|
39 |
Process of separating palladium from metals of the platinum group |
US71308658 |
1958-02-04 |
US2875040A |
1959-02-24 |
SILVIO BARABAS |
|
40 |
Recovery method of platinum group metals from waste |
JP2007036166 |
2007-02-16 |
JP5021331B2 |
2012-09-05 |
孝俊 太田; 研滋 後藤; 鎗田 聡明 |
|