METHOD FOR PRODUCING CALCIUM OF HIGH PURITY
    11.
    发明公开
    METHOD FOR PRODUCING CALCIUM OF HIGH PURITY 审中-公开
    VERFAHREN ZUR HERSTELLUNG VON CALCIUM MIT HOHER REINHEIT

    公开(公告)号:EP2740810A4

    公开(公告)日:2015-06-17

    申请号:EP12855635

    申请日:2012-11-13

    发明人: TAKAHATA MASAHIRO

    摘要: The present invention provides a method for producing high-purity calcium, the method being characterized by the following: performing first sublimation purification by introducing calcium starting material having a purity, excluding the gas components, of 4N or less into a crucible of a sublimation vessel, subjecting the starting material to sublimation by heating at 750°C to 800°C, and causing the product to deposit (evaporate) onto the inside walls of the sublimation vessel; and then, once the calcium that has been subjected to first sublimation purification is recovered, performing second sublimation purification by introducing the recovered calcium again to the crucible to the sublimation vessel, heating the recovered calcium at 750°C to 800°C, and causing the product to similarly deposit (evaporate) on the inside walls of the sublimation vessel thereby recovering calcium having a purity of 4N5 or higher It is an object of the present invention to provide a technology with which calcium that has been brought to a high-purity can be obtained with stability to be used for the production of high-purity lanthanum, as well as to be used as a reducing agent for other rare earth elements, a desulfurizing or deoxidizing agent for metals, or a getter for high-vacuum pumps.

    摘要翻译: 本发明提供一种生产高纯度钙的方法,该方法的特征在于:通过将不含气体成分的纯度的钙原料引入4N以下的钙原料进入升华容器的坩埚中进行第一升华纯化 通过在750℃至800℃下加热使原料升华,并使产物沉积(蒸发)到升华容器的内壁上; 然后,一旦回收了经过第一次升华纯化的钙,通过再次将回收的钙再次引入坩埚进行升华,进行第二升华纯化,将回收的钙在750℃加热至800℃,并引起 该产品在升华容器的内壁上类似地沉积(蒸发),从而回收纯度为4N5或更高的钙。本发明的一个目的是提供一种已经达到高纯度的钙的技术 可以稳定地获得用于生产高纯度镧,以及用作其它稀土元素的还原剂,用于金属的脱硫或脱氧剂,或用于高真空泵的吸气剂。

    METHOD FOR PRODUCING CALCIUM OF HIGH PURITY
    12.
    发明公开
    METHOD FOR PRODUCING CALCIUM OF HIGH PURITY 审中-公开
    用于生产钙会与高纯度

    公开(公告)号:EP2740810A1

    公开(公告)日:2014-06-11

    申请号:EP12855635.4

    申请日:2012-11-13

    发明人: TAKAHATA Masahiro

    摘要: The present invention provides a method for producing high-purity calcium, the method being characterized by the following: performing first sublimation purification by introducing calcium starting material having a purity, excluding the gas components, of 4N or less into a crucible of a sublimation vessel, subjecting the starting material to sublimation by heating at 750°C to 800°C, and causing the product to deposit (evaporate) onto the inside walls of the sublimation vessel; and then, once the calcium that has been subjected to first sublimation purification is recovered, performing second sublimation purification by introducing the recovered calcium again to the crucible to the sublimation vessel, heating the recovered calcium at 750°C to 800°C, and causing the product to similarly deposit (evaporate) on the inside walls of the sublimation vessel thereby recovering calcium having a purity of 4N5 or higher It is an object of the present invention to provide a technology with which calcium that has been brought to a high-purity can be obtained with stability to be used for the production of high-purity lanthanum, as well as to be used as a reducing agent for other rare earth elements, a desulfurizing or deoxidizing agent for metals, or a getter for high-vacuum pumps.

    PROCESS FOR PRODUCING Ti OR Ti ALLOY, AND PULL-UP ELECTROLYSIS METHOD APPLICABLE TO SAID PROCESS
    13.
    发明公开
    PROCESS FOR PRODUCING Ti OR Ti ALLOY, AND PULL-UP ELECTROLYSIS METHOD APPLICABLE TO SAID PROCESS 审中-公开
    VERFAHREN ZUR HERSTELLUNG VON TI ODER TI-LEGIERUNG UND DARAUF ANWENDBARE HOCHZIEHELEKTROLYSEMETHODE

    公开(公告)号:EP1876248A1

    公开(公告)日:2008-01-09

    申请号:EP06729224.3

    申请日:2006-03-16

    摘要: In producing Ti or a Ti alloy through reduction by Ca, an electrolytic-bath salt taken out from a reduction process is electrolyzed to recover Ca and the electrolytic-bath salt as a solid substance, and the recovered Ca and electrolytic-bath salt are delivered to the reduction process. Therefore, heat generation is suppressed in the reduction process by utilizing latent heat of fusion possessed by the solid substance, thereby largely improving production efficiency and thermal efficiency. Additionally, a reaction temperature is easily controlled, and a raw-material loading rate can be enhanced to efficiently produce Ti or the Ti alloy. At this point, using a pulling electrolysis method of the invention, the solid-state Ca and electrolytic-bath salt can be obtained at a low voltage and high current efficiency, i.e., with the relatively small power consumption. When the solid-state Ca and electrolytic-bath salt is used as a Ca source in producing Ti or the Ti alloy through reduction by Ca, the Ti or Ti alloy can efficiently be produced.

    摘要翻译: 在通过Ca还原生产Ti或Ti合金时,从还原过程中取出的电解浴盐被电解以回收Ca和作为固体物质的电解浴盐,并且回收的Ca和电解浴盐被输送 到减少过程。 因此,通过利用固体物质所具有的融合潜热,在还原过程中抑制发热,从而大大提高生产效率和热效率。 另外,可以容易地控制反应温度,并且可以提高原料负荷率,以有效地生产Ti或Ti合金。 此时,使用本发明的拉电解方法,可以以低电压和高电流效率即功耗相对较小来获得固态Ca和电解浴盐。 当使用固态Ca和电解浴盐作为通过Ca还原生产Ti或Ti合金的Ca源时,可以有效地制备Ti或Ti合金。

    METHOD FOR HANDLING PARTICULATE METAL
    17.
    发明公开

    公开(公告)号:EP4194569A1

    公开(公告)日:2023-06-14

    申请号:EP21213185.8

    申请日:2021-12-08

    摘要: The present invention relates to a method for handling particulate metal, comprising the following steps:
    1a) Providing particulate metal to a pretreatment unit (1) at a first location,
    1b) Pretreating the particulate metal in the pretreatment unit (1) with a pretreatment agent (2) to produce pretreated particulate metal,
    2a) Transferring the pretreated particulate metal from the pretreatment unit to at least one transportation vessel (3),
    2b) Transporting the pretreated particulate metal with the at least one transportation vessel (3) to a second location,
    3a) Transferring the pretreated particulate metal at the second location to a treatment system (4),
    3b) Processing the pretreated particulate metal in the treatment system (4).

    WASTEWATER TREATMENT METHOD
    19.
    发明公开
    WASTEWATER TREATMENT METHOD 审中-公开
    ABWASSERBEARBEITUNGSVERFAHREN

    公开(公告)号:EP3009407A4

    公开(公告)日:2017-01-18

    申请号:EP14810962

    申请日:2014-05-15

    摘要: Provided is a wastewater treatment process capable of selectively and efficiently separating and removing a manganese precipitate with high purity from sulfuric acid-acidic wastewater containing aluminum, magnesium, and manganese. In the wastewater treatment for a sulfuric acid-acidic wastewater containing aluminum, magnesium, and manganese, a magnesium oxide is used for part or all of the neutralizing agent to be added, the magnesium oxide is produced through the following steps (1) to (4): (1) effluent wastewater obtained by separating aluminum and manganese from sulfuric acid-acidic wastewater is concentrated, and calcium contained in the effluent wastewater is precipitated as a calcium sulfate; (2) the solution obtained in (1) is further concentrated, and magnesium is precipitated and separated as a magnesium sulfate; (3) the magnesium sulfate separated in (2) is roasted together with a reducing agent to obtain a magnesium oxide and sulfurous acid gas; and (4) the magnesium oxide obtained in (3) is washed.

    摘要翻译: 提供一种废水处理方法,其能够从含有铝,镁和锰的硫酸酸性废水中选择性且有效地分离和除去高纯度的锰沉淀物。 在含有铝,镁和锰的硫酸酸性废水的废水处理中,为了添加部分或全部中和剂使用氧化镁,氧化镁通过以下步骤(1)〜( 4):(1)通过从硫酸酸性废水中分离铝和锰得到的废水浓缩,废水中含有的钙作为硫酸钙沉淀; (2)将(1)中得到的溶液进一步浓缩,并将镁以硫酸镁的形式沉淀分离; (3)将(2)中分离出的硫酸镁与还原剂一起焙烧,得到氧化镁和亚硫酸气体; 和(4)洗涤在(3)中得到的氧化镁。

    RECOVERY METHOD FOR A CONTINUOUS CALCIUM EXTRACTION AND PCC PRODUCTION
    20.
    发明公开
    RECOVERY METHOD FOR A CONTINUOUS CALCIUM EXTRACTION AND PCC PRODUCTION 审中-公开
    威斯康星州立大学电子科技大学

    公开(公告)号:EP2794942A1

    公开(公告)日:2014-10-29

    申请号:EP12858933.0

    申请日:2012-12-21

    发明人: KARBARZ, Frank A.

    IPC分类号: C22B26/20 C22B7/00

    摘要: A method of mineralizing calcium from industrial waste comprising extracting calcium ions from a suspension of calcium rich granular particles and aqueous ammonium nitrate to form a calcium-rich first fraction and a heavy second fraction. The heavy second fraction is separated from the first fraction and the calcium-rich first fraction is carbonated with a gas comprising carbon dioxide to form a suspension of precipitated calcium carbonate and aqueous ammonium nitrate. The precipitate is separated from the aqueous ammonium nitrate by centrifugal means and the separated heavy second fraction comprises an enriched weight percent of iron.

    摘要翻译: 一种从工业废物中矿化钙的方法,包括从富含钙的颗粒和氯化铵水溶液的悬浮液中提取钙离子,形成富钙的第一馏分和重的第二馏分。 将重的第二馏分与第一馏分分离,并且用含二氧化碳的气体将富钙的第一馏份碳酸化以形成沉淀碳酸钙和氯化铵水溶液的悬浮液。 通过离心方式将沉淀物与氯化铵水溶液分离,分离的重质二级馏分包含铁的富含重量百分数。