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    • 2. 发明申请
    • METHOD FOR PROCESSING OXIDISES NICKEL-COBALT ORE (VARIANTS)
    • 加工氧化物镍 - 钴矿的方法(变体)
    • WO2005007898A3
    • 2005-05-19
    • PCT/RU2004000283
    • 2004-07-22
    • OBSCHESTVO S OGRANICHENNOY OTVBATSHEV VASILIY IVANOVICHKALASHNIKOV ALEXEY VLADIMIROVIKOLTSOV VASILIY YURIEVICHMELNIK DMITRIY VIKTOROVICHSINEGRIBOV VIKTOR ANDREEVICHSHCHUKIN MIKHAIL IGOREVICH
    • BATSHEV VASILIY IVANOVICHKALASHNIKOV ALEXEY VLADIMIROVIKOLTSOV VASILIY YURIEVICHMELNIK DMITRIY VIKTOROVICHSINEGRIBOV VIKTOR ANDREEVICHSHCHUKIN MIKHAIL IGOREVICH
    • C22B1/02C22B1/06C22B23/00
    • C22B1/02C22B1/06C22B23/043
    • The group of invention relates to methods for extracting nickel and cobalt from oxidises nickel-cobalt ores and makes it possible to increase a nickel extraction ratio. In the first variant, the inventive method for processing an oxidised nickel-cobalt ore consists in treating said ore with sulphuric acid associated with the transfer thereof to a soluble sulphate solution. The ore is granulated with sulphuric acid, the thus obtained granules are sulphated at a temperature of 250-450 DEG C during 1-2 hours in one or two operations. Afterwards, the water leaching of nickel sulphates and other metals is carried out, the metals being extracted from the solution by means of known methods. The first operation is carried out at a temperature of 250-300 DEG C, the second operation at a temperature of 350-450 DEG C, and the granules are sulphated with a stechiometric sulphuric acid consumption. In the second variant, the inventive method for processing the oxidised nickel-cobalt ore also consists in treating said ore with sulphuric acid associated with the transfer thereof to soluble sulphate solution. The ore is granulated with sulphuric acid in a required stechiometric quantity, the granules are calcined at a temperature ranging from 650 to 700 DEG C during 2.5-3.0 hours, afterwards the water leaching being carried out. The granule calcination is carried out until the content of soluble iron therein is attained a range of 1.0-3.9 %, said granules being sulphated at a temperature of 200-250 DEG C during 1 hour prior to the calcination thereof. In the third variant, the inventive method for processing the oxidised nickel-cobalt ore consists in treating said ore with sulphuric acid associated with the transfer thereof to a soluble sulphate solution. The ore is granulated with sulphuric acid, the granules are calcined in the atmosphere of gases produced during the oxidation of elementary sulphur or sulphides by air oxygen. Afterwards, said gases together with sulphur oxides released during the granule calcination are sent for sulphuric acid production and the granules for water leaching.
    • 本发明组涉及从氧化镍钴矿石中提取镍和钴的方法,并且可以提高镍提取率。 在第一变体中,本发明的用于处理氧化的镍 - 钴矿石的方法包括用硫酸处理所述矿石并将其转移到可溶性硫酸盐溶液中。 矿石用硫酸造粒,这样得到的颗粒在250-450℃的温度下硫酸化1-2小时,一次或两次操作。 之后,进行硫酸镍和其它金属的水浸,通过已知方法从溶液中提取金属。 第一种操作是在250-300℃的温度下进行的,第二种操作是在350-450℃的温度下进行的,并且使用硫酸化学计量法将颗粒硫酸化。 在第二变体中,本发明的用于处理氧化镍钴矿的方法还包括用硫酸处理所述矿石,所述硫酸与其转移至可溶性硫酸盐溶液有关。 用硫酸按要求的化学计量量将矿石制粒,在2.5-3.0小时期间将颗粒在650-700℃的温度下煅烧,然后进行水浸。 进行颗粒煅烧直至其中可溶性铁的含量达到1.0-3.9%的范围,所述颗粒在煅烧前1小时在200-250℃的温度下硫酸化。 在第三变体中,本发明的用于处理氧化镍钴矿石的方法包括用硫酸处理所述矿石,所述硫酸与将其转移到可溶性硫酸盐溶液中有关。 将矿石用硫酸造粒,将颗粒在通过空气氧氧化元素硫或硫化物期间产生的气体的气氛中煅烧。 之后,将所述气体与在颗粒煅烧过程中释放的硫氧化物一起送入硫酸生产,并将颗粒送入水浸出。
    • 3. 发明申请
    • EXTRACTION OF SILICA AND MAGNESIUM COMPOUNDS FROM OLIVINE
    • 从奥林匹亚提取二氧化硅和镁化合物
    • WO02048036A1
    • 2002-06-20
    • PCT/NO2001/000428
    • 2001-10-29
    • C01B33/187C01F5/24C22B1/06C22B3/08C22B26/22
    • C22B26/22C01B33/187C01F5/24C01P2006/12C01P2006/80C22B1/06C22B3/08Y02P10/234
    • A method is described for extraction of silica and magnesium compounds, by chemical and thermal treatment of the mineral olivine. The method comprises sulphating of olivine, where olivine is mixed with concentrated sulphuric acid at a weight ratio olivine/sulphuric acid of approx. 0.5-0.67, and by heating the mixture to approx. 250 DEG C and giving the mixture a reaction time of approx. 8 hours, and thereafter dissolve the mixture in water, whereby silica percipitates to a solid and where the silica after filtration is purified in a weak solution of soda, and eventually with a weak aqueous solution of an acid or a mixture of acids. This method provides manufacturing of a purified silica solid, leaving a filtrate consisting mainly of dissolved magnesium which after further processing is transformed to magnesium compounds.
    • 描述了通过化学和热处理矿物橄榄石来提取二氧化硅和镁化合物的方法。 该方法包括硫酸化橄榄石,其中橄榄石与浓硫酸以重量比橄榄石/硫酸约约 0.5-0.67,并将混合物加热至约 250℃,给出混合物的反应时间约为 8小时,然后将混合物溶解在水中,由此二氧化硅对固体进行过滤,过滤后的二氧化硅在苏打的弱溶液中纯化,最后用弱酸的酸水溶液或酸的混合物进行纯化。 该方法提供纯化的二氧化硅固体的制造,留下主要由溶解的镁组成的滤液,其进一步处理后转化为镁化合物。
    • 5. 发明申请
    • MELT AND MELT COATING SULPHATION PROCESS
    • 熔融和熔融涂装工艺
    • WO99063121A1
    • 1999-12-09
    • PCT/FI1999/000486
    • 1999-06-04
    • C22B1/06C22B19/02C22B23/00C22B15/00
    • C22B1/06C22B19/02C22B23/005Y02P10/216
    • The invention relates to a method for recovering non-ferrous metals, particularly nickel, cobalt, copper, zinc, manganese and magnesium, from materials containing said metals by converting said non-ferrous metals into sulphates by means of melt and melt coating sulphation, i.e. by a thermal treatment under oxidizing conditions within a temperature range of 400 to 800 DEG C, during which a reaction mixture is formed containing at least one said non-ferrous metal, iron(III)sulphate and alkali metal sulphate, and appropriate reaction conditions are selected to substantially prevent iron(III)sulphate from thermally decomposing to hematite, and finally, said non-ferrous metals are recovered as metallic compounds. In the method of the invention, a process is formed around the melt and melt coating sulphation, which comprises nine steps. The invention is particularly characterized by the manner of pelletizing the material to be fed into step 2 with an alkali metal (Na, K) sulphate - sulphuric acid - water solution, during which the hematite (Fe2O3) contained in the feed material will at a suitable temperature react with sulphuric acid and form hydrous iron(III)sulphate which together with sodium sulphate also acts as the bonding agent required in the pelletizing.
    • 本发明涉及通过熔融和熔融涂覆硫酸化将所述有色金属转化为硫酸盐,从含有所述金属的材料中回收有色金属,特别是镍,钴,铜,锌,锰和镁的方法,即 通过在400至800℃的温度范围内的氧化条件下进行热处理,其间形成含有至少一种所述有色金属,硫酸铁(III)和碱金属硫酸盐的反应混合物,合适的反应条件是 被选择为基本上防止硫酸铁(III)热分解成赤铁矿,最后所述有色金属作为金属化合物回收。 在本发明的方法中,在熔融和熔融涂覆硫酸化周围形成一个工艺,其包括九个步骤。 本发明特别的特征在于用碱金属(Na,K)硫酸盐 - 硫酸 - 水溶液将待进料到步骤2中的材料造粒的方式,在此期间,原料中所含的赤铁矿(Fe 2 O 3)将在 合适的温度与硫酸反应形成硫酸氢铁(III),与硫酸钠一起也用作造粒所需的粘合剂。
    • 10. 发明申请
    • METHOD FOR PROCESSING OXIDISES NICKEL-COBALT ORE (VARIANTS)
    • 氧化镍钴矿(VARIANTS)的处理方法
    • WO2005007898A2
    • 2005-01-27
    • PCT/RU2004/000283
    • 2004-07-22
    • C22B
    • C22B1/02C22B1/06C22B23/043
    • The group of invention relates to methods for extracting nickel and cobalt from oxidises nickel-cobalt ores and makes it possible to increase a nickel extraction ratio. In the first variant, the inventive method for processing an oxidised nickel-cobalt ore consists in treating said ore with sulphuric acid associated with the transfer thereof to a soluble sulphate solution. The ore is granulated with sulphuric acid, the thus obtained granules are sulphated at a temperature of 250-450 DEG C during 1-2 hours in one or two operations. Afterwards, the water leaching of nickel sulphates and other metals is carried out, the metals being extracted from the solution by means of known methods. The first operation is carried out at a temperature of 250-300 DEG C, the second operation at a temperature of 350-450 DEG C, and the granules are sulphated with a stechiometric sulphuric acid consumption. In the second variant, the inventive method for processing the oxidised nickel-cobalt ore also consists in treating said ore with sulphuric acid associated with the transfer thereof to soluble sulphate solution. The ore is granulated with sulphuric acid in a required stechiometric quantity, the granules are calcined at a temperature ranging from 650 to 700 DEG C during 2.5-3.0 hours, afterwards the water leaching being carried out. The granule calcination is carried out until the content of soluble iron therein is attained a range of 1.0-3.9 %, said granules being sulphated at a temperature of 200-250 DEG C during 1 hour prior to the calcination thereof. In the third variant, the inventive method for processing the oxidised nickel-cobalt ore consists in treating said ore with sulphuric acid associated with the transfer thereof to a soluble sulphate solution. The ore is granulated with sulphuric acid, the granules are calcined in the atmosphere of gases produced during the oxidation of elementary sulphur or sulphides by air oxygen. Afterwards, said gases together with sulphur oxides released during the granule calcination are sent for sulphuric acid production and the granules for water leaching.
    • 本发明涉及从氧化镍 - 钴矿石中提取镍和钴的方法,并且可以提高镍提取率。 在第一种变型中,用于处理氧化的镍钴矿石的本发明方法在于将硫酸转移到可溶性硫酸盐溶液中来处理所述矿石。 矿石用硫酸造粒,所得颗粒在一个或两个操作中在1-24小时内在250-450℃的温度下硫酸化。 之后,进行硫酸镍等金属的浸出,通过已知的方法从溶液中提取金属。 第一次操作在250-300℃的温度下进行,第二次操作在350-450℃的温度下进行,并且以硫酸消耗硫酸化。 在第二种变型中,用于处理氧化的镍钴矿石的本发明方法还包括用与其转移到可溶性硫酸盐溶液相关的硫酸处理所述矿石。 矿石以所需的刻度计用硫酸造粒,颗粒在650-300℃的温度下煅烧2.5-3.0小时,然后进行水浸。 进行颗粒煅烧直到其中可溶性铁的含量达到1.0-3.9%的范围,所述颗粒在煅烧之前1小时内在200-250℃的温度下硫酸化。 在第三变型中,用于处理氧化的镍钴矿石的本发明方法在于将硫酸转移到可溶性硫酸盐溶液中来处理所述矿石。 矿石用硫酸造粒,颗粒在通过空气氧氧化元素硫或硫化物时产生的气体气氛中煅烧。 之后,将所述气体与在颗粒煅烧期间释放的硫氧化物一起送入硫酸生产,并将颗粒用于水浸。