序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
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
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