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1. 发明专利

JPS61272312A METHOD FOR DEPHOSPHORIZING HIGH-MANGANESE IRON ALLOY 失效
公开(公告)号：JPS61272312A
公开(公告)日：1986-12-02
申请号：JP11417785
申请日：1985-05-29
申请人： NIPPON STEEL CORP , JAPAN METALS & CHEM CO LTD
发明人： KAJIOKA HIROYUKI , ISHIKAWA HIDEKI , KATAYAMA HIROYUKI , KUWABARA MASATOSHI , SHIBATA KENJI , KOGA YOSHINORI , TAMURA YOSHIAKI , FUJITA MASAKI
IPC分类号： C21C7/064 , C21C7/076 , C22C33/04
摘要： PURPOSE:To oxidize and dephosphorize a high-manganese iron alloy at low cost and easily by adding a flux consisting essentially of the carbonate, oxide, chloride, etc., of barium to a molten high-manganese iron alloy and agitating the alloy. CONSTITUTION:About 1-12% flux consisting essentially of >=1 kind among the carbonate, oxide and chloride of barium is added to a molten high- manganese iron alloy and agitated, as necessary, while blowing in an oxidizing gas such as O2 and CO2. When [%C]Sat=0.045[%Mn]+0.002T+1.2 (where, T is the temp. deg.C), the carbon content of the high-manganese iron alloy is preferably regulated in the range [%C]Sat - [%C]Sat - about 0.5%. Besides, desiliconization is preferably applied before the treatment to reduce the Si content to

2. 发明专利

JPS61149443A CARBON MATERIAL FOR MELTING OR REDUCING REFINING OF METAL AND ALLOY 失效
公开(公告)号：JPS61149443A
公开(公告)日：1986-07-08
申请号：JP27070484
申请日：1984-12-24
申请人： NIPPON STEEL CORP , JAPAN METALS & CHEM CO LTD
发明人： KATAYAMA HIROYUKI , ENOKIDO TSUNEO , SASAKI TOSHIAKI , KOGA YOSHINORI
IPC分类号： C22B5/10 , C10L9/02
摘要： PURPOSE:To obtain the inexpensive carbon material hardly causing contamination of metal and alloys by impurities by pickling fine breeze with a prescribed grain size and smaller yielded at the coke making so as to restrict CaO+MgO in ash content to a specific value or below. CONSTITUTION:The fine breeze with

3. 发明专利

JPS61138695A Method of dephosphorization of coke 失效
标题翻译：焦炭脱磷的方法
公开(公告)号：JPS61138695A
公开(公告)日：1986-06-26
申请号：JP25993684
申请日：1984-12-11
申请人： Japan Metals & Chem Co Ltd , Nippon Steel Corp
发明人： KATAYAMA HIROYUKI , SANO NOBUO , ENOKIDO TSUNEO , SASAKI TOSHIAKI , KOGA YOSHINORI
IPC分类号： C22B5/10 , B01D11/02 , C10L9/02
摘要： PURPOSE: To leach a phosphorus component selectively, and to obtain coke with low phosphorus content effectively useful in reducing smelting of metal oxide, etc., by washing powder or granule of coke with an acid under a specific condition.
CONSTITUTION: Power or granule of coke is washed with an acid at ≤4pH under a condition to satisfy the relationship of acid solution concentration, temperature and leaching time determined by the equation [t is immersion time (hr); T is liquid temperature (°C)], for example, with an aqueous solution of sulfuric acid at 2pH, so that a phosphorus component (calcium phosphate) in the coke is selectively leached and removed.
EFFECT: Process is simplified, and treatment cost is reduced.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：选择性地浸出磷成分，通过在特定条件下用酸洗涤粉末或焦炭颗粒，可以有效地减少金属氧化物的熔炼等，从而获得低磷含量的焦炭。构成：在<= 4pH的酸下，在酸性溶液浓度，温度和浸出时间之间的关系条件下，用酸洗涤焦炭或焦炭颗粒[t为浸渍时间（hr））。 T是液体温度（℃）]，例如用2pH的硫酸水溶液，使得焦炭中的磷成分（磷酸钙）被选择性地浸出和去除。效果：工艺简化，处理成本降低。

4. 发明专利

JPS61101599A Removal of phosphorus from coke 失效
标题翻译：从焦炭中去除磷
公开(公告)号：JPS61101599A
公开(公告)日：1986-05-20
申请号：JP22379384
申请日：1984-10-24
申请人： Japan Metals & Chem Co Ltd , Nippon Steel Corp
发明人： KATAYAMA HIROYUKI , ENOKIDO TSUNEO , KOGA YOSHINORI , SASAKI TOSHIAKI
IPC分类号： C10L9/02
摘要： PURPOSE: To efficiently remove phosphorus in coke by subjecting the coke to acid treatment in a specified reduced-pressure atmosphere.
CONSTITUTION: Coke of particle size ≥0.5mm is immersed in an aq. soln. contg. an acid such as HCl, H
2 SO
4 or HN
3 , and the atmosphere is reduced in pressure to 400 Torr or below and held under the reduced pressure for at least 5min to leach phosphorus in the coke as a compd. of phosphoric acid.
EFFECT: It is possible to economically decrease a phosphorus content of a metal or alloy obtd. by the reducing smelting of the metal oxide.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过在指定的减压气氛中对焦炭进行酸处理，有效地除去焦炭中的磷。构成：将粒径≥0.5mm的焦炭浸于水中。索恩对比酸如HCl，H 2 SO 4或HN 3，并将气氛压力降低至400乇或更低，并在减压下保持至少5分钟，以便将焦炭中的磷浸出。的磷酸。效果：可以经济地降低金属或合金的含磷量。通过金属氧化物的还原冶炼。

5. 发明专利

JPS6230810A DEPHOSPHORIZING METHOD FOR HIGH-MANGANESE ALLOY 失效
公开(公告)号：JPS6230810A
公开(公告)日：1987-02-09
申请号：JP16968685
申请日：1985-08-02
申请人： NIPPON STEEL CORP , JAPAN METALS & CHEM CO LTD
发明人： KAJIOKA HIROYUKI , ISHIKAWA HIDEKI , KATAYAMA HIROYUKI , KUWABARA MASATOSHI , SHIMANUKI TAKASHI , KOGA YOSHINORI , TAMURA YOSHIAKI , FUJITA MASAKI
IPC分类号： C21C7/064 , C21C7/076
摘要： PURPOSE:To easily execute a dephosphorization treatment at a low cost by adding a specific ratio of BaCO3 as a flux to high-carbon ferromanganese contg. P at a high rate and oxidizing part of Mn to MnO by the CO2 formed by the decomposition thereof thereby incorporating MnO into molten slag. CONSTITUTION:The melt of the high-carbon ferromanganese of the high P content contg. >20-% Mn is subjdcted to a preliminary desiliconization treatment in a ladle and thereafter BaCO is added as the flux at 2-9% ratio thereto. An inert gas or oxidizing gas such as Ar, N2 or CO2 in then added to the melt and the melt is stirred. The operation in this stage is executed at a relatively low operating temp. of 1,250-1,400 deg.C and part Mn is oxidized to MnO by the gaseous CO2 formed by the thermal decomposition of BaCO3 so that the molten slag is made strongly basic by BaO and the oxidizing slag incorporated with 2-40% MnO is obtd. The P in the high-carbon ferromaganese is oxidized to P2O5 and is converted to slag by the above-mentioned slag. The dephosphorization refining is thus easily and surely executed.

6. 发明专利

JPS61108696A Dephosphorization of coke 失效
标题翻译：焦糖的去磷化
公开(公告)号：JPS61108696A
公开(公告)日：1986-05-27
申请号：JP23104084
申请日：1984-11-01
申请人： Japan Metals & Chem Co Ltd , Nippon Steel Corp
发明人： KATAYAMA HIROYUKI , KOGA YOSHINORI , ENOKIDO TSUNEO , SASAKI TOSHIAKI
IPC分类号： B01D11/02 , C05B11/04 , C10L9/02
摘要： PURPOSE: To prepare dephosphorized coke in a simple process at a low cost, by performing pickling of coke under specified conditions.
CONSTITUTION: Pickling of coke in powder or particles is performed with sulfuric acid, etc. under conditions which satisfy relations shown by equations I and II [where t is time of immersion (hr); T is temp. of liquid (°C)] and fall within the area bound by curves A (temp. of liquid: 60, 40 and 24°C) and straight line B.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过在特定条件下进行酸洗，以简单的方法以低成本制备脱磷焦炭。构成：在满足式I和II所示的关系的条件下，用硫酸等进行粉末或颗粒中的焦炭酸洗[其中t是浸渍时间（hr）; T是温度的液体（deg.C）]并落在由曲线A（液体温度：60°，40°和24°C）和直线B限定的区域内。

7. 发明专利

JPS6126752A Manufacture of low-phosphorus and high-manganese iron alloy by melt reduction 失效
标题翻译：通过减少金相制备低磷和高锰合金
公开(公告)号：JPS6126752A
公开(公告)日：1986-02-06
申请号：JP14596684
申请日：1984-07-16
申请人： Japan Metals & Chem Co Ltd , Nippon Steel Corp
发明人： KAJIOKA HIROYUKI , ISHIKAWA HIDEKI , KATAYAMA HIROYUKI , KUWABARA MASATOSHI , SHIMANUKI TAKASHI , KOGA YOSHINORI , FUJITA MASAKI
IPC分类号： C22C33/04 , C21C5/28 , C22B47/00 , C22C22/00 , C22C33/00 , C22C38/04
摘要： PURPOSE: To manufacture efficiently a low-P and high-Mn iron alloy in a short time by using a top and bottom blowing converter type reactor and blowing an inert gas from the bottom so as to utilize produced vigorous agitating force.
CONSTITUTION: In the 1st stage, a C satd. high-Mn iron alloy is manufactured in a top and bottom blowing converter type reactor, and after removing part of slag, an oxidizing gas is blown to manufacture a C unsatd. high-Mn iron alloy by decarburization. In the 2nd stage, all slags are removed, a mixture of one or more among CaO, CaC
2 and CaSi with an alkaline earth metallic halide are added, and an inert gas is blown from the bottom to dephosphorize the iron alloy. Thus, a low-P and high-Mn iron alloy is manufactured by melt reduction.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过使用顶吹式和底吹式转炉式反应器，从底部吹入惰性气体，在短时间内有效地制造低P和高锰铁合金，以利用产生剧烈的搅拌力。规定：在第一阶段，在上吹式和底吹式转炉式反应器中制造高锰铁合金，在除去炉渣部分后，吹入氧化性气体，制作不饱和碳酸酯。高锰铁合金脱碳。在第二阶段，除去所有的炉渣，加入CaO，CaC 2和CaSi中的一种或多种与碱土金属卤化物的混合物，从底部吹入惰性气体以使铁合金脱磷。因此，通过熔融还原制造低P和高Mn铁合金。

8. 发明专利

JPS61272345A MANUFACTURE OF HIGH MANGANESE FERROUS ALLOY BY MELTING-REDUCING SMELTING 失效
公开(公告)号：JPS61272345A
公开(公告)日：1986-12-02
申请号：JP11417585
申请日：1985-05-29
申请人： NIPPON STEEL CORP , JAPAN METALS & CHEM CO LTD
发明人： KAJIOKA HIROYUKI , ISHIKAWA HIDEKI , KATAYAMA HIROYUKI , KUWABARA MASATOSHI , SHIBATA KENJI , SHIMANUKI TAKASHI , KOGA YOSHINORI , FUJITA MASAKI
IPC分类号： C22C33/04 , C21B13/00 , C21C5/28
摘要： PURPOSE:To manufacture a high-Mn ferrous alloy inexpensively in high efficiency by charging with Mn ore, solid carbonaceous material and slagging agent a reaction vessel charged with molten metal and molten slag and by carrying out heating, melting and reduction under specific conditions. CONSTITUTION:The molten high-Mn ferrous alloy and the slag are left in the top and bottom blown convertor-type reaction vessel by about 10-50% of the rated capacity of the vessel, into which oxygen and the like are blown via a bottom blowing nozzle. Subsequently, the vessel is charged with the carbonaceous material, into which oxygen is blown via a top blowing lance, and the furnace is then continuously charged with the Mn ore and/or its preliminary reduced substance, carbonaceous material and slagging agent. At this time, heating and melting are carried out with maintaining the temp. of the molten metal at 1,500 deg.C+alpha (where alpha

9. 发明专利

JPS61159549A METHOD FOR REDUCING PHOSPHORUS CONTENT IN ALLOY CONTAINING CHROMIUM 失效
公开(公告)号：JPS61159549A
公开(公告)日：1986-07-19
申请号：JP27873784
申请日：1984-12-29
申请人： NIPPON STEEL CORP , JAPAN METALS & CHEM CO LTD
发明人： KATAYAMA HIROYUKI , ENOKIDO TSUNEO , SASAKI TOSHIAKI , KOGA YOSHINORI
IPC分类号： C22C33/04
摘要： PURPOSE:To manufacture a low-P alloy contg. Cr at a low cost by organically combining a stage for treating a by-product produced during the manufacture of coke for iron manufacture with a stage for refining an alloy contg. Cr. CONSTITUTION:Coke breeze of

10. 发明专利

JPS59113131A Treatment of slag formed in smelting of ferrochromium 失效
标题翻译：处理在铬铁矿中形成的SLAG
公开(公告)号：JPS59113131A
公开(公告)日：1984-06-29
申请号：JP22419682
申请日：1982-12-21
申请人： Japan Metals & Chem Co Ltd , Nippon Steel Corp
发明人： KATAYAMA HIROYUKI , KUWABARA MASATOSHI , NAKAMURA YASUSHI , FUJITA MASAKI , KOGA YOSHINORI , NAKADA ISAMU
IPC分类号： C22B7/04 , F27D15/00
CPC分类号： Y02P10/212
摘要： PURPOSE: To refine ferrochromium at a low cost and high yield and to make effective use of slag by subjecting chromium ore powder to solid reduction then charging the same into a reduction furnace to subject the ore powder to melt reduction by coal, etc., and separating magnetically the slag formed by the reduction thereby decreasing the content of chromium in said slag.
CONSTITUTION: A molten metal contg. carbon is charged into a converter-like melt reduction furnace 2 and oxygen is blown therein through a bottom blowing tuyere 3 to burn the carbon in the molten metal and to maintain adequately the temp. of a metal 7; at the same time, oxygen is supplied from a top blowing lance 4 to burn the carbonaceous material supplied from a hopper 6 and the carbonaceous material, etc. in formed slag 8 thereby providing a heat source for smelting. On the other hand, a chromium raw material 9 is heated together with an inexpensive carbonaceous material 10, such as coal or coke, in a rotary kiln 1, by the gas generated in said furnace 2. The material subjected to the solid phase preliminary reduction in such a way is charged into the furnace 2 where smelting of the ferrochromium is accomplished. Formed slag 8 is taken out and after it is once solidified, the solid slag is disintegrated, pulverized and magnetically screened, whereby the slag powder having ≤0.6% content of chromium and substantially the rate of elution in zero is obtd.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：以低成本和高产率精炼铬铁，并通过使铬矿石粉末进行固体还原，有效利用炉渣，然后将其装入还原炉中，使矿粉经煤等熔融还原，将通过还原形成的炉渣磁力分离，从而降低炉渣中铬的含量。构成：熔融金属将碳装入转炉式熔融还原炉2中，并且通过底吹风口3将氧气吹入其中，以燃烧熔融金属中的碳并充分保持温度。的金属7; 同时，从顶吹喷枪4供给氧气，将从料斗6供给的碳质材料和碳质材料等烧成成形的炉渣8，由此提供用于熔炼的热源。另一方面，铬原料9与回转窑1中的廉价碳质材料10（例如煤或焦炭）一起被所述炉2中产生的气体加热。进行固相初步还原的材料以这种方式装入炉2中，其中完成了铬铁的熔炼。取出成型渣8，一旦固化后，将固体渣分解，粉碎，磁力筛选，得到铬含量<= 0.6％，洗脱速度基本为零的渣粉末。

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