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    • 1. 发明申请
    • METHOD FOR EXTRACTING PRECIOUS METALS
    • 提取精细金属的方法
    • WO2007081243A2
    • 2007-07-19
    • PCT/RU2007000004
    • 2007-01-09
    • ZAKRYTOE AKCIONERNOE OBSHESTVOSINEGRIBOV VIKTOR ANDREEVICHSMETANNIKOV ANDREI FILIPPOVICHUDINA TATYANA BORISOVNANOVIKOV PAVEL URIEVICHLOGVINENKO IZABELLA ALEKSEEVNAKRASNOSHTEIN ARKADIY EVGENIEVI
    • SINEGRIBOV VIKTOR ANDREEVICHSMETANNIKOV ANDREI FILIPPOVICHUDINA TATYANA BORISOVNANOVIKOV PAVEL URIEVICHLOGVINENKO IZABELLA ALEKSEEVNAKRASNOSHTEIN ARKADIY EVGENIEVI
    • C22B11/00
    • C22B11/04C22B1/08C22B3/065C22B3/24C22B11/042C22B11/06Y02P10/214Y02P10/234
    • The invention relates to methods for extracting precious metals and can be used for extracting precious metals (platinum, palladium, gold, etc) from different mineral raw materials containing alkali and alkali-earth metal chlorides, for example a bulk concentrate obtainable from clay-salt wastes (slims) of potassium production, marking clays, etc. The inventive method consists in carrying out the chloridising roasting of the bulk concentrate which is obtainable during the initial material (clay-salt slims) dressing and contains residual chlorides in a quantity raging from 7 to 13 % or a natural concentrate (marking clays) wherein the chloride content is equal to or less than 15 %, in leaching a roasted product by a nitromuriatic acid solution, in sorbing precious metals from a pulp, in carrying out the chloridising roasting of a mineral raw material with a temperature of 600-700 °C, in leaching said precious metals from the sintered product by the diluted nitromuriatic acid solution and in sorbing the precious metals from the thus obtained pulp. The inventive method makes it possible to carry out a combined extraction of platinum group metals, gold ad silver from the mineral raw material containing alkali and alkali-earth metal chlorides and to increase the cost effectiveness of the process by using a chlorinating agent contained therein, reducing the number of operations (eliminating a pulp filtration), reducing a roasting temperature in comparison with the prior art and by leaching precious metals from the sintered product by the diluted acid solution.
    • 本发明涉及用于提取贵金属的方法,可用于从含有碱金属和碱土金属氯化物的不同矿物原料中提取贵金属(铂,钯,金等),例如可从粘土盐 钾生产的废物(薄片),标记粘土等。本发明的方法在于进行在初始材料(粘土盐薄片)敷料期间可获得的散装浓缩物的氯化焙烧,并且含有来自 7〜13%的天然浓缩物(标记粘土),其中氯化物含量等于或小于15%,在硝化酸溶液浸取焙烤产品时,从纸浆中吸附贵金属,进行氯化焙烧 的温度为600-700℃的矿物原料,通过稀释的硝酸酸溶液a从烧结产物中浸出所述贵金属 从这样获得的纸浆中吸收贵金属。 本发明的方法使得可以从含有碱金属和碱土金属氯化物的矿物原料中进行铂族金属,金银的组合提取,并且通过使用其中所含的氯化剂来提高该方法的成本效益, 减少操作次数(消除纸浆过滤),与现有技术相比降低焙烧温度,并通过稀释的酸溶液从烧结产品中浸出贵金属。
    • 5. 发明申请
    • METHOD FOR THE RECOVERY OF BASE AND PRECIOUS METALS BY EXTRACTIVE CHLORIDATION
    • 通过提取氯化法回收碱和重金属的方法
    • WO02053788A1
    • 2002-07-11
    • PCT/CA2000/001590
    • 2000-12-29
    • C22B1/08C22B3/10C22B7/00C22B11/06
    • C22B7/009C22B1/08C22B3/10C22B11/06Y02P10/214Y02P10/234Y02P10/236
    • A method for the recovery of base metals such as cobalt, nickel, copper, lead, zinc, mercury and cadmium, precious metals such as silver and gold, as well as the platinum group metals, comprising ruthenium, rhodium, palladium, osmium, iridium and platinum from fresh ore, mine tailings and industrial wastes by a series of steps which include analysing the ore, mine tailings or industrial wastes to determine the presence of one or more of the above mentioned metals; chloridating the ore with a strength determined by the presence of the most refractory of the metals ascertained by the analysing step, in the presence of a source of chloride ions in an amount determined by the metals present to form a solution of metal chlorides and a sterile residue; separating the solution of metal chlorides from the residue to produce a filtered solution of metal chlorides; recovering the metal chlorides from the filtered solution of metal chlorides to produce a barren solution; recycling the source of chloride ions. In one preferred embodiment the cloridation process is carried out with chlorine gas at temperatures ranging from 40 to 50 DEG C in the presence of a near saturated solution of either NaCI, KCI or CaCI2. In a second preferred embodiment the chloridation process is carried out with chlorine gas at temperatures ranging from 500 to 600 DEG C in the presence of about 5 % of either solid NaCI, KCI or CaCI2. In third preferred embodiment the chloridation procedure is carried out with concentrated hydrochloric acid at temperatures ranging about 100 DEG C.
    • 用于回收贱金属如钴,镍,铜,铅,锌,汞和镉的贵金属如银和金以及铂族金属的方法,包括钌,铑,钯,锇,铱 以及来自新鲜矿石,矿尾矿和工业废物的白金,通过一系列步骤,包括分析矿石,矿尾矿或工业废物,以确定一种或多种上述金属的存在; 在由存在的金属源确定的氯离子源存在下,以由金属氯化物溶液形成的量存在的金属氯化物和无菌的 残留物; 从残留物中分离出金属氯化物溶液以产生金属氯化物的过滤溶液; 从金属氯化物的过滤溶液中回收金属氯化物以产生贫瘠的溶液; 回收氯离子源。 在一个优选的实施方案中,氯化气体在约50至50℃的温度下,在NaCl,KCl或CaCl 2的近饱和溶液的存在下进行。 在第二优选实施方案中,在约5%的固体NaCl,KCl或CaCl 2的存在下,氯代气体在500-600℃的温度下进行氯化过程。 在第三优选实施方案中,氯化程序用浓盐酸在约100℃的温度下进行
    • 10. 发明申请
    • VERFAHREN ZUR AUFARBEITUNG DES BEI DER CHLORIERUNG TITANHALTIGER ROHSTOFFE ANFALLENDEN ZYKLONSTAUBS
    • 一种用于处理AT氯化钛资源发生旋风除尘
    • WO2009071284A1
    • 2009-06-11
    • PCT/EP2008/010253
    • 2008-12-04
    • KRONOS INTERNATIONAL, INC.
    • FRAHM, HeikoFRIEDRICH, JörgFLOEDER, Dirk
    • C22B34/12C22B1/08C22B7/00B03D1/002C10L9/02
    • C22B34/1222B03D1/02C10L8/00C22B1/08C22B7/006C22B34/1231C22B34/1259Y02P10/23Y02P10/234
    • Die Erfindung betrifft ein Verfahren zur Aufarbeitung des bei der Carbochlorierung von titanhaltigen Rohstoffen anfallenden, im Wesentlichen aus Titandioxid, Koks und weiteren inerten Metalloxiden wie Siliciumdioxid bestehenden Zyklonstaubs und zur Rückführung einer koksreichen und/oder einer TiO 2 -reichen Fraktion in den Chlorierungsreaktor. Die Aufarbeitung des Zyklonstaubs umfasst folgende Verfahrensschritte: a) Bereitstellen einer wässrigen Suspension des Zyklonstaubs, b) Abtrennen einer koksreichen Fraktion (1) aus der Suspension durch Flotation, c) Zugabe von Flusssäure in die verbleibende Suspension, d) Abtrennen einer TiO 2 -reichen Fraktion (2) durch Flotation. In einem Schritt e) können die Fraktionen (1) und (2) entwässert und ggf. getrocknet werden. Die Koks-Fraktion kann in den Chlorierungsreaktor rückgeführt werden oder als Brennstoff Verwendung finden. Die TiO 2 -reiche Fraktion wird bevorzugt mit Alkalichlorid, insbesondere NaCI agglomeriert, bei mindestens 800 °C thermisch behandelt und in den Chlorierungsreaktor rückgeführt.
    • 本发明涉及一种方法,用于后处理中的含钛基本上二氧化钛,焦炭和其它惰性金属氧化物如二氧化硅现有旋流粉尘组成原料碳氯化和用于返回koksreichen和/或富含TiO 2的级分至氯化反应器所获得的。 的旋风分离灰尘后处理包括以下步骤:a)提供的旋风分离灰尘的含水悬浮液,b)分离从悬浮液通过浮选一个koksreichen分数(1)中,c)在剩余的悬浮液中添加氢氟酸,D)一富TiO 2的级分的分离 (2)通过浮选。 在步骤e)的级分(1)和(2)可被脱水并任选干燥。 焦炭馏分可以再循环到使用该氯化反应器或燃料。 富TiO 2的部分优选用碱金属氯化物附聚,尤其是氯化钠,热在至少800℃下处理,并再循环至该氯化反应器。