序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
1 从废炭载钌催化剂中回收三氯化钌的方法 CN201610789547.3 2016-08-31 CN106186090A 2016-12-07 蔡万煜; 杜继山; 田洁
发明公开了一种从废炭载钌催化剂中回收三氯化钌的方法,将回收的炭载钌催化剂或其他贵金属催化剂依次通过焚烧、溶、浸出化吸收以及冶干处理,最终提取出三氯化钌;本发明将碱溶法、氧化吸收法与传统贵金属钌回收工艺相结合,能够解决金属钌不溶于强酸的问题;氧化吸收法能够有效的将钌与其他金属元素分离;利用本发明方法回收的三氯化钌固体杂质少,质量好,可作为原料直接用于催化剂的制备,回收过程不会对环境造成二次污染。
2 从含白金族的溶液中除去钌的装置 CN200710096670.8 2007-04-19 CN101153357A 2008-04-02 永井灯文
提供一种从含有白金族的溶液中通过化蒸馏除去钌时,有效率地除去钌的蒸馏装置。在含有钌及白金族的溶液中添加氧化剂,将钌变换成四氧化钌而除去的装置中,至少1处以上的空气喷送口最下部的高度距反应槽的底部为5~20mm,对反应槽内进行减压并喷送空气,从而比重大的四氧化钌不会积存在底部而能够进行有效率地搅拌,能够容易地除去钌。
3 丁辛醇装置含铑废液的资源化循环利用方法 CN201710237710.X 2017-04-12 CN107021983A 2017-08-08 李成林; 于国清; 舒瑞友
发明涉及一种丁辛醇装置含铑废液的资源化循环利用方法,保证有效资源——铑和三苯基膦的循环利用,无效资源——废溶剂焚烧转换成能量供生产使用,做到物尽其用;焚烧产生的尾气通过脱硫、脱硝处理后达标排放,确保排放气体无污染,实现环境友好的资源化循环利用。在铑回收的重要环节,采用吸附法,用负载型铑配体与废铑催化剂混合交换吸附,将铑从三苯基膦配体中置换出铑。本方法投资少,环境友好,铑回收率高,三苯基膦得以充分回收利用大大提高了经济效益和市场竞争
4 一种三氯化铱的控制还原制备方法 CN201611176364.0 2016-12-19 CN106854001A 2017-06-16 罗瑶; 吴松; 贺昕; 滕海涛; 李治宇; 吴聪; 陈斐; 关俊卿; 熊晓东
发明公开了一种三氯化铱的控制还原制备方法,属于还原技术领域。将四价铱氯化物和还原剂按照一定比例加入到三口烧瓶内,在磁搅拌条件下,恒温还原至溶液中四价铱全部转换为三价,反应过程中使用冷凝回流装置,减少还原剂的挥发,控制反应体系稳定。该方法操作简单,流程短,还原过程充分可控,含量稳定,可保证四价铱完全还原为三价,制备的三氯化铱产品纯度高。
5 回收和纯化无机金属前体的方法 CN200880011421.7 2008-04-08 CN101795975A 2010-08-04 J·伽蒂诺; C·迪萨拉
回收和纯化无机金属前体的方法和装置。提供包含四化钌的气态第一料流,并将其转化为固相低级氧化钌。用氢气还原该固相低级氧化钌以形成钌金属。将钌金属与氧化混合物接触以制备包含四氧化钌的料流,并通过蒸馏将任何残留氧化化合物从该料流中除去。
6 从含钌的担载催化剂材料回收钌的方法 CN200880012993.7 2008-04-16 CN101663242A 2010-03-03 M·哈斯; P·武塔; A·沃尔夫; O·F·-K·施卢特
用于从含钌的担载催化剂材料以卤化钌形式,特别是氯化钌,回收钌的方法,该方法至少具有下列步骤:a)催化剂材料的化学分解,b)产生粗制的钌盐溶液,c)净化该粗制的钌盐溶液,和任选地从溶液汽提气态的四化钌,d)然后用卤化氢或者氢卤酸处理在c)中获得的经纯化钌化合物,特别是四氧化钌,以回收卤化钌,特别用氯化氢或者盐酸来回收氯化钌。
7 무기 금속 전구체의 재순환 및 정제 방법 KR1020097023134 2008-04-08 KR1020100121395A 2010-11-17 가티노줄리앙; 뒤사라크리스티앙
본 발명은 무기 금속 전구체의 재순환 및 정제를 위한 방법 및 장치에 관한 것이다. 사산화루테늄을 함유하는 제1 기체 스트림을 제공하고, 고상 저급 루테늄 산화물로 전환시킨다. 이 저급 고상 루테늄 산화물을 수소로 환원시켜 루테늄 금속을 형성한다. 루테늄 금속을 산화성 혼합물과 접촉시켜 사산화루테늄을 함유하는 스트림을 생성하고, 임의의 잔류하는 산화성 화합물을 증류를 통해 상기 스트림으로부터 제거한다. 무기 금속 전구체, 재순환, 정제, 사산화루테늄
8 Precious metal refining with fluorine gas US536995 1990-06-12 US5076839A 1991-12-31 David A. Boyd; John H. Holloway; Gillian Stanger
Feed mixtures containing one or more platinum group metals are fluorinated to form at least one volatile fluoride product which is separated from the residual solid. Separations of different fluorides may be effected by collecting different fractions of volatile fluorides. Palladium does not form a volatile fluoride and is retained in the residual solid.
9 Recovering method of catalytic component and carrier from waste catalyst US293897 1989-01-05 US4960573A 1990-10-02 Takeshi Okutani; Yoshinori Nakata; Masaaki Suzuki; Takeo Akiyama
Disclosed is a recovering method of a catalytic substance and a carrier from a waste catalyst which comprises subjecting the waste catalyst composed of a catalyst prepared by supporting a catalytic substance on a carrier composed of pourous silicon carbide to chlorinating treatment and then recovering the catalytic substance and the carrier in the form of chlorides.
10 Complexes of beta platinum chloride and ammonia US675099 1976-04-09 US4079121A 1978-03-14 George T. Kerr; Albert E. Schweizer
This invention relates to reactions of beta platinum chloride with gaseous ammonia to yield metallic platinum useful in catalysis and other operations and also complexes of beta platinum chloride and ammonia, which complexes are considered to be new compositions and which are contemplated as being useful in cancer research.
11 Reaction of beta platinum chloride with gaseous ammonia US680960 1976-04-28 US4075307A 1978-02-21 George T. Kerr; Albert E. Schweizer
This invention relates to reactions of beta platinum chloride with gaseous ammonia to yield metallic platinum useful in catalysis and other operations and also complexes of beta platinum chloride and ammonia, which complexes are considered to be new compositions and which are contemplated as being useful in cancer research.
12 Method for recovering palladium from spent palladium catalysts US751791 1976-12-17 US4072508A 1978-02-07 Ludek Vodicka; Ivo Peka; Voktor Suchy
A technique for recovering palladium from a spent palladium catalyst or ash thereof involves fluorinating the catalyst or ash at elevated temperatures to yield palladium fluoride and decomposing the fluoride with a mineral acid at a temperature ranging from 90.degree. - 100.degree. C.
13 Recovery platinum group metals from oxides ores US896675 1992-06-10 US5292490A 1994-03-08 Willem P. C. Duyvesteyn; Houyuan Liu; Saskia Duyvesteyn
A method is provided for recovering at least one platinum group metal from an ore containing the same. The method comprises reducing the particle size of the ore to provide the platinum group metal in a leachable condition following which the ore is subjected to leaching with a sulfuric acid solution maintained at a pH of less than 1 during leaching. The solution contains an amount of a soluble bromide compound at least sufficient to complex the platinum group metal while maintaining an amount of an oxidizing agent dissolved in the solutions at least sufficient to maintain the platinum group metal in an ionic form conducive to forming a soluble bromide complex, thereby dissolving substantial amounts of the platinum group metal.
14 Two-step method for recovering dispersed noble metals US632160 1990-12-21 US5102632A 1992-04-07 Robert J. Allen; Peter C. Foller; James Giallombardo
A two-stage method of recovering the noble metal content of a mixture of noble metals, for example, platinum, palladium, and rhodium, this mixture being, for example, comprises on or throughout a pellet or on or throughout a ceramic monolith of a spent catalyst, the method comprising first reductive chlorination at an elevated temperature by a gaseous chlorinating agent in the presence of a reducing agent (preferably the reducing agents sulfur dioxide and carbon monoxide in stages); minimizing the amount of aluminum trichloride formed from either washcoat or underlying ceramic chlorination, and separating the aluminum trichloride or other washcoat chlorides from the products of chlorination of the noble metals, as by sublimation of the former in a reducing atmosphere at a temperature below the vaporization temperatures of the latter, thereby recovering the noble metal chlorides in a concentrated form. As a second stage, temperature is further increased in an atmosphere of chlorine alone to volatilize rhodium trichloride for collection seperately from the palladium and platinum chlorides volatilized previously in the first-stage reductive chlorination.
15 Process for preparing chlororhodiumic acid US241940 1988-09-08 US4859445A 1989-08-22 Akio Hirose
Enclosed herein is a process for preparing chlororhodiumic acid which comprises dissolving rhodium or a rhodium containing mixture in hydrochloric acid by bubbling chlorine gas therein under heating and suspending the rhodium to provide the chlororhodiumic acid in the hydrochloric acid solution.According to the present invention, the dissolving reaction proceeds sufficiently at a high speed under the relatively moderate conditions and in a more simplified process than that of a prior art, to provide the chlororhodiumic acid in high yield. The chlorine gas can be removed from the hydrochloric acid solution easily, and if the chlorine gas is contaminated in the solution as a chlorine ion, the chlorine ion is already present in the hydrochloric acid solution so that the contaminated ion will never be recognized as impurities. Therefore, the high purity chlororhodiumic acid can be obtained.
16 Recovery of rhodium from carbonylation residues US241181 1981-03-06 US4340570A 1982-07-20 Walter C. Davidson
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. In the process of the invention, the rhodium values are freed from the residues by a series of treatments with amines and other reagents, thereby enabling the rhodium to be extracted by subsequent contact with an aqueous halogen acid.
17 High energy oxidizers and method of synthesizing same US31201472 1972-12-04 US3879526A 1975-04-22 CHRISTE KARL O
THE CATION C102F2 IS SYNTHESIZED BY REACTING FCLO2 WITH PTF6 TO PRODUCE CLO2F2 PTF6 AND SEVERAL ADDITIONAL SALTS, CONTAINING THIS CATION, ARE PRODUCED BY DISPLACEMENT TECHNIQUES.
18 Ionic interhalogen oxidizing agent and method US3709748D 1970-05-26 US3709748A 1973-01-09 ROBERTO F
ClF6PtF6 is prepared by reacting PtF6 with ClF5 in the presence of ultraviolet light. ClF4PtF6 is also produced by the reaction and may be removed from the mixture by decomposition. ClF6PtF6 is useful as an oxidizing agent and as an intermediate in the preparation of other oxidizing agents containing chlorine in its +7 valence state.
19 Process for purifying hexachloroiridic acid US3565576D 1969-12-22 US3565576A 1971-02-23 PANNETIER GUY
A PROCESS FOR REMOVING SODIUM CHLORIDE CONTAINED IN COMMERCIAL HEXACHLOROPHIC ACID, WITH COMPRISES A HEAT TREATMENT OF THE IMPURE ACID WITH NITRIC ACID, A PRECIPITATION OF A COMPLEX HYDROXIDE OF TETRAVALENT IRIDIUM BY ADDING AMMONIUM HYDROXIDE IN THE PRESENCE OF HYDROGEN PEROXIDE AND A HEAT TREATMENT OF THE WASHED PRECIPITATE WITH HYDROCHLORIC ACID IN ORDER TO OBTAIN SUBSTANTIALLY PURE HEXACHLOROIRIDIC ACID.
20 Production of palladium chloride for dimerizing aromatics US41171264 1964-11-17 US3294484A 1966-12-27 ELLIS ALAN F
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