公开(公告)号：US4504310A

公开(公告)日：1985-03-12

申请号：US520802

申请日：1983-08-05

Applicant: Laurent L. Boulier

Inventor： Laurent L. Boulier

IPC: C22B1/24 ,  C22B1/244 ,  C22B1/245 ,  C22B5/02 ,  C22B5/04 ,  C22B5/10 ,  C22B34/12 ,  C22B34/22 ,  C22B34/24 ,  C22B34/32 ,  C22B34/34 ,  C22B34/36 ,  C22B47/00 ,  C22C1/00 ,  C21B15/02

CPC classification number: C22B1/244 ,  C22B1/2406 ,  C22B1/245 ,  C22B34/32 ,  C22B5/04 ,  Y10S75/959

Abstract: A process for the production of high purity metals or metallic alloys comprises the steps of:(a) producing a metal or metallic alloy, the non-metallic inclusions of which are, preferably, easily reducible oxides of the base metal;(b) milling the metal or metallic alloy thus obtained and agglomerating the milled metal or metallic alloy with an agglomerating agent and a reducing agent, so as to form balls; and(c) subjecting the balls to a reducing treatment under regulated conditions of reduced pressure and elevated temperature, at which the reducing agent acts on the non-metallic inclusions while substantial sublimation of the alloying metal or metals is avoided.The invention is particularly applicable to the production of high purity chromium.

Abstract translation: 制备高纯度金属或金属合金的方法包括以下步骤：（a）制备金属或金属合金，其非金属夹杂物优选易于还原贱金属的氧化物; （b）研磨如此获得的金属或金属合金，并将研磨的金属或金属合金与附聚剂和还原剂结块，以形成球; 和（c）在减少压力和升高的温度的调节条件下对球进行还原处理，其中还原剂作用于非金属夹杂物，同时避免了合金金属或金属的显着升华。 本发明特别适用于生产高纯度铬。

公开(公告)号：US4497661A

公开(公告)日：1985-02-05

申请号：US557989

申请日：1983-12-05

Applicant: Nicholas Valenti

Inventor： Nicholas Valenti

IPC: C21C1/08 ,  C22B1/244 ,  C22B1/245 ,  C22B9/10 ,  C21C7/02

CPC classification number: C22B1/244 ,  C21C1/08 ,  C22B1/245

Abstract: Formed briquettes of high green strength, high shatter and good compressive strength in the cured state from a composition comprising a metal- and/or carbon-containing waste, one or more reactible isocyanate group containing materials and one or more hydroxyl group containing materials and magnesia. The product can be easily formed by mixing all components at room temperature, introducing the same into a mold, applying pressure and thereafter permitting the same to set. Setting is rapid, and the product can be handled within minutes after molding. The product finds particular use as a replacement in whole or in part for metal and/or carbon sources in steel-making; it has the excellent advantages that the metal and/or carbon content thereof is extremely high and it introduces no harmful impurities into, e.g., steel during steel making.

Abstract translation: 由含有金属和/或碳的废物，一种或多种可反应的含异氰酸酯基的材料和一种或多种含羟基的材料和氧化镁的组合物形成的具有高生坯强度，高破碎性和高抗压强度的固化状态的团块 。 通过在室温下将所有组分混合，将其引入模具中，施加压力，然后允许其固化，可以容易地形成产品。 设置快速，产品可在成型后几分钟内处理。 该产品特别用作全部或部分替代炼钢中的金属和/或碳源; 它具有非常高的金属和/或碳含量的极好的优点，并且在炼钢期间不会将有害杂质引入到例如钢中。

公开(公告)号：US4389493A

公开(公告)日：1983-06-21

申请号：US252063

申请日：1981-04-08

Applicant: Gert-Wilhelm Lask

Inventor： Gert-Wilhelm Lask

IPC: C01B33/02 ,  C01B33/025 ,  C22B1/244 ,  C22B1/245 ,  C22C33/00 ,  C22C33/04 ,  C04B35/52

CPC classification number: C22C33/003 ,  C01B33/025 ,  C22B1/245

Abstract: In the production of silicon or silicon-alloy bodies in which a shaped pre-form, blank or like member containing a silicon carrier and carbon is subjected to an electric furnace, the fine-grain silicon carrier intimately mixed with preferably a stoichiometric amount of caking coal and the mixture is molded to form the body which is subjected to hot briquetting at a temperature of 350.degree. to 550.degree. C. as is used for the hot briquetting of coal.

Abstract translation: 在其中将含有硅载体和碳的成形预制件，坯料或类似构件经受电炉的硅或硅合金体的生产中，细晶硅载体与优选化学计量的结块紧密混合 煤和混合物被模制以形成在350℃至550℃的温度下进行热压块的主体，如用于煤的热压块。

公开(公告)号：US4082539A

公开(公告)日：1978-04-04

申请号：US672789

申请日：1976-04-01

Applicant: Kinichi Sugawara

Inventor： Kinichi Sugawara

IPC: C22B1/14 ,  C22B1/16 ,  C22B1/245

CPC classification number: C22B1/245

Abstract: A new method for the preliminary treatment of the raw materials used for sintering of powdery iron ore is provided, in which the hydrophilic binder is dividedly incorporated in a first treatment step and/or a second treatment step. The solid carbon is also dividedly incorporated. The high productivity and quality of the product can thus be maintained and also the NOx conversion rate can be largely decreased.

公开(公告)号：US1926032A

公开(公告)日：1933-09-12

申请号：US53372131

申请日：1931-04-29

Applicant: NEW JERSEY ZINC CO

Inventor： BUNCE EARL H ,  LENTZ CLARENCE J

IPC: C22B1/245

CPC classification number: C22B1/245

公开(公告)号：US20240110259A1

公开(公告)日：2024-04-04

申请号：US18300407

申请日：2023-04-14

Applicant: Honghe University

Inventor： Xingxiang FAN ,  Yan JIANG ,  Na WU ,  Mengyang HUANG ,  Lida SUN

IPC: C22B5/10 ,  C22B1/245 ,  C22B15/00 ,  C22B41/00 ,  C22B58/00

CPC classification number: C22B5/10 ,  C22B1/245 ,  C22B15/0052 ,  C22B41/00 ,  C22B58/00

Abstract: A method for co-producing blister copper by enriching germanium and indium from a copper sulfide ore comprises: mixing a copper sulfide ore containing germanium and indium, a reducing agent and a fluxing agent in proportion and then grinding; subjecting the mixture to reduction matte smelting to obtain volatile smoke containing germanium and indium and copper matte respectively; subjecting the copper matte to oxygen-enriched blowing to volatilize germanium and indium, so as to obtain the blister copper and volatile smoke containing germanium and indium respectively; and oxidizing fumes discharged from bag dust collection by ozone, and then absorbing them by spraying alkali liquor to reach up-to-standard discharge. In the reduction smelting stage, the volatilization rate of germanium and indium is more than 70%; and in the copper matte oxygen-enriched blowing stage, the volatilization rate of germanium and indium is more than 25%.

公开(公告)号：US11932917B2

公开(公告)日：2024-03-19

申请号：US16605736

申请日：2018-04-18

Applicant: Binding Solutions Ltd

Inventor： Nigel Pickett

IPC: C22B1/245 ,  C21C5/52

CPC classification number: C22B1/245 ,  C21C5/527

Abstract: The application describes pellets comprising particulate iron ore and between 0.05 and 1.0% by weight of an organic binder.
The use of such pellets in electric arc furnaces to produce steel is also described.

公开(公告)号：US20230257849A1

公开(公告)日：2023-08-17

申请号：US17996969

申请日：2021-04-21

Applicant: PAUL WURTH S.A.

Inventor： Klaus Peter KINZEL ,  Tompson FREITAS ,  José Geraldo ARÁUJO ,  Juan Luis DE FRUTOS SANTAMARIA ,  Georg STRÜBER

IPC: C22B1/245 ,  C22B1/16 ,  F27D3/00 ,  C22B1/24

CPC classification number: C22B1/245 ,  C22B1/16 ,  F27D3/0033 ,  C22B1/2413

Abstract: A method for supplying raw material to a sinter plant and facilitating a sinter process with reduced consumption of fossil fuels, provides that a mixed material is used to supply raw material, wherein the mixed material includes particulate iron-containing material and particulate pyrolised biomass in mixed form. The iron-containing material is preferably iron ore and/or the pyrolised biomass is preferably charcoal.

公开(公告)号：US11479832B2

公开(公告)日：2022-10-25

申请号：US16093339

申请日：2017-04-19

Applicant: SUMITOMO METAL MINING CO., LTD.

Inventor： Takashi Iseki ,  Yukihiro Goda ,  Jun-ichi Kobayashi ,  Shuji Okada

IPC: C22B23/02 ,  C22B1/245 ,  C22B5/10

Abstract: Provided is a smelting method for producing metal by reducing a mixture that includes an oxide ore such as nickel oxide ore, wherein it is possible to improve productivity by raising the metal recovery rate as well as to inexpensively and efficiently produce high-quality metal. The present invention is a smelting method in which: an oxide ore and a carbonaceous reducing agent are mixed; the resulting mixture is heated and subjected to a reduction treatment; and metal and slag, which are reduction products, are obtained, wherein the reduction treatment is carried out in a state in which one or more surface deposits selected from carbonaceous reducing agents, metal oxides, and oxidation inhibitors are deposited on the surface of the mixture.

公开(公告)号：US11168381B2

公开(公告)日：2021-11-09

申请号：US15029685

申请日：2014-10-16

Applicant: AMBIENTE E NUTRIZIONE S.R.L.

Inventor： Giuseppina Cerea

IPC: C22B1/245 ,  C22B1/244 ,  C22B1/243 ,  C22B1/00

Abstract: A process for upgrading waste powders of the mining industry containing iron oxides is described, which includes preparing a mixture containing powder based on iron oxides, an aqueous dispersion of a thermosetting resin and optionally carbon powder, and a catalyst of acidic nature; kneading the mixture at a temperature between 5 and 100° C. to form a homogeneous paste, and granulating such homogeneous paste at a temperature between 100 and 300° C., thus obtaining granules of powder based on iron oxides and optionally carbon powder bound by the resin that has been polymerized.