公开(公告)号：WO01078923A1

公开(公告)日：2001-10-25

申请号：PCT/DE2001/000761

申请日：2001-02-22

IPC分类号： B22F9/22 ,  B22F1/00 ,  B22F3/11 ,  B22F1/02

CPC分类号： B22F1/0051 ,  B22F3/1112 ,  B22F3/1143 ,  B22F2998/10 ,  Y10T428/12181 ,  B22F3/1121 ,  B22F3/001

摘要： According to the invention, the shaped bodies are comprised of at least one heavy metal, preferably Fe, Ni, Co, Sn, Mo or W, which can be reduced from a corresponding metal compound at a temperature of less than 1,500 DEG C. The shaped bodies have an outer diameter ranging from 0.05 to 0.5 mm and a diameter to wall thickness ratio ranging from 0.5 to 3 %. According to the method, starting materials are applied as a covering layer to supporting elements of any shape, and the green products produced in such a manner are subsequently heat-treated. During the heat-treatment, the supporting elements are pyrolyzed, the covering layers are, in essence, thermally decomposed, and the decomposition products are sintered. The outer dimensions of the supporting elements are selected such that they are larger than the shaped bodies to be produced. Metallic compounds, preferably metal oxides, metal hydroxides, metal carbonates, or organometallic compounds are selected as starting materials and can be reduced at a temperature of less than 1,200 DEG C. The heat treatment is carried out in a reductive atmosphere containing hydrogen and/or carbon in such a way that the starting materials are essentially reduced to the sintered metal which provides the foundation for the respectively used metal compound.

摘要翻译： 根据本发明的存在，至少一种重金属，优选铁，镍，钴，锡，Mo或W，包括成形体，它可以在温度低于1500℃，从相应的金属化合物被减少。 模制品具有0.05至0.5毫米，直径之间的外径向壁的0.5厚度比至3％。 根据作为起始原料任意形状的支撑元件和这样产生的压坯的包层被施加的方法是随后进行热处理。 该载体元件被热解，该覆层基本上热分解和烧结Zersetzungspordukte。 支撑构件的外部尺寸被选择为比成型体更大。 作为起始原料是选择的金属化合物，优选金属氧化物，金属氢氧化物，金属碳酸盐或金属有机化合物，其可还原在低于1200℃的温度下 该热处理是在还原性氢和/或含碳气氛，使得原料是基本上烧结金属可以减少，这是使用作为基础的金属化合物进行的。

公开(公告)号：WO01067182A1

公开(公告)日：2001-09-13

申请号：PCT/SE2001/000506

申请日：2001-03-09

IPC分类号： C01G49/00 ,  B22F1/00 ,  B22F3/00 ,  B22F9/22 ,  C22C33/02 ,  G03G9/083 ,  G03G9/107 ,  G11B5/706 ,  H01F1/09 ,  H01F1/22 ,  H01F1/11 ,  H01F1/36

CPC分类号： G03G9/107 ,  B22F3/001 ,  B22F9/22 ,  B22F2999/00 ,  G03G9/0832 ,  G03G9/0834 ,  G11B5/706 ,  H01F1/09 ,  B22F1/0096 ,  B22F9/026

摘要： The invention concerns a process permitting the preparation of a new powder, which as such or further processed is useful within a wide variety of different fields and which has magnetic and electric properties. The powder includes at least 0.5 % by weight of iron containing silicate and at least 10 % by weight of metallic iron and/or alloyed iron and is prepared by a process comprising the steps of mixing an iron containing powder and a silicon containing powder; and reducing the obtained mixture at a temperature above about 450 DEG C.

摘要翻译： 本发明涉及允许制备新粉末的方法，其本身或进一步加工可用于多种不同领域并具有磁性和电性能。 粉末包含至少0.5重量％的含铁的硅酸盐和至少10重量％的金属铁和/或合金铁，并且通过包括以下步骤的方法制备，所述方法包括将含铁粉末和含硅粉末混合; 并在高于约450℃的温度下还原所得混合物。

公开(公告)号：WO01046484A1

公开(公告)日：2001-06-28

申请号：PCT/EP2000/012484

申请日：2000-12-11

IPC分类号： B22F9/26 ,  B22F1/00 ,  B22F9/22 ,  B22F9/24 ,  C22C1/05

CPC分类号： C22C1/051 ,  B22F9/22 ,  B22F9/24 ,  B22F2998/10 ,  B22F2999/00 ,  B22F9/026 ,  B22F1/025

摘要： The invention relates to a method for the production of power mixtures, or composite powders, from at least one first type of powder chosen from the group, high-melting metals, physically resistant materials, or ceramic powders and at least one second type of powder, chosen from the group of binding metals, binding metal mixed crystals and binding metal alloys. The second type of powder is produced, in an aqueous suspension of the first type of powder, from precursor compounds, which are in the form of water-soluble salts, by precipitation as the oxalate, separating the mother liquor and reduction to the metal.

摘要翻译： 本发明描述了一种用于将粉末混合物或复合粉末的制剂，其包含选自下组的高熔点金属，硬质材料和陶瓷粉末中的至少一种第一类型的粉末和选自粘合剂金属，金属粘结剂混晶和粘合剂的金属合金中的至少一种第二类型的粉末，其中，所述第二类型的粉末 在通过沉淀为草酸盐，在水溶性盐的形式除去母液和减少从前体化合物与金属的第一种类型的粉末的含水悬浮液被产生。

公开(公告)号：WO01000891A1

公开(公告)日：2001-01-04

申请号：PCT/JP2000/004176

申请日：2000-06-26

IPC分类号： B22F9/02 ,  B22F9/04 ,  C01B3/00 ,  C22C1/04 ,  C22C23/00 ,  H01M4/02 ,  H01M4/38 ,  H01M4/46 ,  C22C1/00 ,  B22F1/00 ,  B22F9/22

CPC分类号： C22C23/00 ,  B22F9/023 ,  B22F9/04 ,  B22F2009/041 ,  B22F2998/00 ,  B22F2998/10 ,  B22F2999/00 ,  C01B3/0031 ,  C01B3/0042 ,  C22C1/0408 ,  H01M4/02 ,  H01M4/383 ,  H01M4/46 ,  Y02E60/327 ,  Y10S420/90 ,  B22F1/0044

摘要： A method for producing a hydrogen storage alloy powder, characterized as comprising charging powders of raw materials and a plurality of balls into a pot of a ball mill, converting the atmosphere in the pot to a hydrogen atmosphere, and then subjecting the raw material powders to a mechanical alloying in the hydrogen atmosphere.

摘要翻译： 一种储氢合金粉末的制造方法，其特征在于，将原料粉末和多个球体加入到球磨机的锅中，将所述锅中的气氛转变为氢气氛，然后将所述原料粉末 在氢气氛中机械合金化。

公开(公告)号：WO00051767A1

公开(公告)日：2000-09-08

申请号：PCT/JP2000/001169

申请日：2000-02-29

IPC分类号： B22F9/04 ,  B22F1/00 ,  B22F3/11 ,  B22F9/22

CPC分类号： B22F1/0007 ,  B22F1/0088 ,  B22F3/1143 ,  B22F2998/10 ,  B22F2999/00 ,  B22F2201/03 ,  B22F2201/01 ,  B22F9/04 ,  B22F2201/00

摘要： A method for producing a porous metal powder comprising subjecting a starting metal to an oxidation treatment and then to a reduction treatment, characterized in that the starting metal is oxidized in the presence of chlorine and/or a chloride. Massive metal bodies formed after reduction comprise pillar-shaped particles being entangled in one another as are rootstocks, and thus, the metal powder has open pores.

摘要翻译： 一种多孔金属粉末的制造方法，其特征在于，在氯和/或氯化物的存在下使起始金属氧化，进行氧化处理后的还原处理。 还原后形成的大量金属体包括柱状颗粒彼此缠结的砧木，因此金属粉末具有开孔。

公开(公告)号：WO00029325A1

公开(公告)日：2000-05-25

申请号：PCT/EP1999/008373

申请日：1999-11-03

IPC分类号： C01B32/949 ,  B22F1/00 ,  B22F9/22 ,  C22C29/08 ,  C23C8/20 ,  C01B31/34 ,  C04B35/56

CPC分类号： B82Y30/00 ,  C01B32/949 ,  C01P2004/03 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/80

摘要： The invention relates to a method for producing wolfram carbides by gas-phase carburetion of wolfram powders and/or suitable wolfram precursor compounds in powder form at temperatures above 850 DEG C. According to the method a CO2/CO mixture with a CO2 content greater than the Boudouard equilibrium content corresponding to the carburetion temperature is used as carburetion gas phase.

摘要翻译： 它高于850℃，一个过程被描述为通过Gasphasenkarburierung在使用如用渗碳气体相的温度下制造钨粉末和/或合适的钨前体化合物粉末的碳化钨是一个CO 2 / CO混合物与CO 2含量高于对应于该渗碳鲍多尔德 平衡含量，则使用。

公开(公告)号：WO2023002731A1

公开(公告)日：2023-01-26

申请号：PCT/JP2022/018486

申请日：2022-04-21

申请人： ＪＦＥスチール株式会社

发明人： 山本　尚貴 ,  高下　拓也 ,  宇波　繁

IPC分类号： B01J20/02 ,  B01D53/14 ,  B01J20/28 ,  B22F1/00 ,  B22F9/04 ,  B22F9/08 ,  B22F9/20 ,  B22F9/22

摘要： 酸素との高反応性を得ることができる酸素反応剤用鉄基粉末を提供する。本発明の酸素反応剤用鉄基粉末は、金属鉄含有量が７０質量％以上１００質量％以下、かつ粒子の内部に外部とつながる細孔を有し、前記細孔のうち直径３ｎｍ～５００μｍの細孔の容積が前記鉄基粉末１ｇ当たり合計で０．０５ｃｍ３／ｇ以上である。

公开(公告)号：WO2022109489A1

公开(公告)日：2022-05-27

申请号：PCT/US2021/060616

申请日：2021-11-23

申请人： US METALS REFINING GROUP, INC.

发明人： KASAINI, Henry W.

IPC分类号： B22F9/30 ,  B22F9/22 ,  B22F1/00 ,  B22F1/142

摘要： Methods for the manufacture of fine metal powders from metal-containing ammonium compounds such as ammonium oxalate metal salts. The method includes decomposing particulates of the ammonium oxalate metal salt by heating to a decomposition temperature in the presence of a dilute hydrogen gas to decompose the ammonium oxalate compound, and form a fine metal powder by heating to a higher refining temperature to remove contaminants from the fine metal powder. The method may include the conversion of a non-oxalate metal compound to a hydrated metal oxalate and the dehydration of the hydrated metal oxalate before decomposition to the metal. The method is applicable to the production of a wide variety of metals of high purity and fine particle size.

公开(公告)号：WO2022102229A1

公开(公告)日：2022-05-19

申请号：PCT/JP2021/032858

申请日：2021-09-07

申请人： ＪＦＥミネラル株式会社

发明人： 松木　謙典

IPC分类号： B22F9/22 ,  C22C19/03 ,  C22C38/00 ,  H01F41/02 ,  H01F1/147 ,  B22F3/00 ,  B22F1/00

摘要： 大きな飽和磁化を有し、樹脂との親和性が高く、高透磁率かつ高飽和磁束密度の圧粉磁心を製造可能な、軟磁性合金粉末及びその圧粉体並びにそれらの製造方法を提供する。　質量濃度で、Ｎｉ：４０．０～５０．０％及びＣｌ：１０～１００００ｐｐｍを含有し、残部Ｆｅ及び不可避的不純物からなる合金粉末であって、平均粒径が０．１０～２．００μｍであり、平均結晶子径が前記平均粒径の０．５倍以上であることを特徴とする軟磁性合金粉末である。さらに、粒子の中心から該粒子の半径の０．９倍までの範囲内にある該粒子内の任意の点におけるＮｉ濃度が、該粒子全体の平均Ｎｉ含有率の０．７～１．３倍であることが好ましい。これにより、大きな飽和磁化を有し、樹脂との親和性が高く、高透磁率かつ高飽和磁束密度の圧粉磁心の製造が容易になる。

公开(公告)号：WO2022101840A1

公开(公告)日：2022-05-19

申请号：PCT/IB2021/060498

申请日：2021-11-12

申请人： TATA STEEL LIMITED

发明人： SINHA, Gourav Ranjan ,  DWARAPUDI, Srinivas ,  SRIKAR, Sista Kameswara ,  KUMAR, Deepak

IPC分类号： A61P7/06 ,  B22F1/05 ,  B22F9/22 ,  A23L29/00 ,  A23L33/16 ,  A61K33/26

摘要： The present disclosure generally relates to the field of fortification of food with iron. More particularly, the present disclosure relates to an irregular and porous elemental iron powder, which is suitable for fortifying food and pharmaceuticals with iron, and a composition comprising the same. The present disclosure also relates to a simple, economic, and efficient method for producing the said iron powder. The present disclosure further relates to an iron-fortified beverage or food product fortified with the elemental iron powder and a method of preparing the same. The elemental iron powder has metallic iron content of at least about 98% and surface area ranging from about 0.5 m2/g to about 1.0 m2/g. The elemental iron powder has high dissolution rate and relative bioavailability compared to the standard of care.