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公开(公告)号：US3857695A
公开(公告)日：1974-12-31
申请号：US37215473
申请日：1973-06-21
发明人： VOJKOVIC M
CPC分类号： C22C27/02
摘要： Vanadium values in the form of vanadium pentoxide in metal complexes are reduced to a metallic vanadium-based alloy suitable for use as a steel additive at a temperature of about 1300*C. in an atmosphere comprising nitrogen and hydrogen or ammonia at ambient pressures. Carbon is employed as a reducing agent and the product typically will be a vanadium nitride containing minor quantities of iron.
摘要翻译： 金属络合物中五氧化二钒形式的钒值在环境压力下在包含氮气和氢气或氨的气氛中还原成适合用作钢铁添加剂的金属钒基合金，温度约为1300℃。 使用碳作为还原剂，并且产物通常将是含有少量铁的钒氮化物。
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2.发明授权Method of forming taconite pellets with a double sulfate salt binder 失效用双重硫酸盐粘合剂形成TACONITE PELLETS的方法
公开(公告)号：US3819360A
公开(公告)日：1974-06-25
申请号：US33809673
申请日：1973-03-05
发明人： ADAMS A , CHOWNING E
CPC分类号： C22B1/243
摘要： Taconite fines are pelletized by adding to the taconite 2 to 4 percent by weight of a double salt of potash-magnesia, preferably dissolved in an amount of water equivalent to about 10 to 15 percent by weight of the taconite. The resulting mass is mixed and formed into pellets by granulation or briquetting techniques. The pellets are allowed to cure and then dry to a water content of about 1 to 2 percent.
摘要翻译： 铁灰石细粉通过加入2至4重量％的钾盐 - 氧化镁的双重盐，优选溶解在相当于铁陨石重量的约10至15重量％的量的水泥中来造粒。 将所得物料混合并通过造粒或压块技术形成颗粒。 允许颗粒固化，然后干燥至约1％至2％的含水量。
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公开(公告)号：US3814595A
公开(公告)日：1974-06-04
申请号：US33708973
申请日：1973-03-01
发明人： BOEGLIN A , CHOWNING E
CPC分类号： C05D1/02 , C05D5/00 , C05G3/0058
摘要： FINE LANGBEINITE PARTICLES ARE GRANULATED BY FIRST PREPARING A LANGBEINITE MATERIAL SIZED SUCH AS IT IS NOT MORE THAN 10% +35 MESH, 15% TO 35% -20 MESH, WITH THE REMAINDER BEING -35 +200 MESH. THE SIZED LANGBEINITE IS WETTED TO A MOISTURE CONTENT OF 6.5 TO 11.5% BE WEIGHT OF THE LANGBEINITE. THE RESULTING MASS IS GRANULATED, CURED FOR AT LEAST TWO HOURS, AND DRIED TO A MOISTURE CONTENT OF 2% TO 5%. PRODUCT TEMPERATURE IS MAINTAINED BELOW A MAXIMUN OF300* F. AND THE MAXIMUM TEMPERATURE OF GASES CONTACTING THE PRODUCT IS MAINTAINED BELOW 1200* F.
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公开(公告)号：US3802632A
公开(公告)日：1974-04-09
申请号：US30013172
申请日：1972-10-24
发明人： DANCY W
摘要： Coarse clay-containing sylvinite having a maximum particle size of from about 3/4 inch to about 3/8 inch is divided into two portions by sizing at about 1/4 inch to about 4 mesh and the coarser fraction containing unliberated ore particles is subjected to gravity separation to reject significant amounts of clay and halite. Both the concentrate from the gravity separation which is comminuted to liberate mineral constituents and the minus 1/4 inch to 4 mesh fraction from the initial sizing are subjected to gravity beneficiation.
摘要翻译： 具有约3/4英寸至约3/8英寸的最大粒度的含粗粘土的硅酸钠通过在约1/4英寸至约4目的尺寸调整而分成两部分，并且含有未起泡矿石的较粗级分经受 以重力分离以排除大量的粘土和盐岩。 将粉碎后的浓缩物粉碎以释放矿物成分，并将来自初始施胶的负1/4英寸至4目部分的浓缩物进行重力选矿。
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公开(公告)号：US3758383A
公开(公告)日：1973-09-11
申请号：US3758383D
申请日：1971-06-01
CPC分类号： A01N57/16 , C12P1/04 , C12R1/07 , Y10S435/832
摘要： METHOD FOR THE PRODUCTION OF THE EXOTOXIN OF BACILLUS THURINGIENSIS IN HIGH YIELD USING A HIGH CARBOHYDRATE MEDIUM AND AN ACRYSTALLIFEROUS MUTANT OF BACILLUS THURINGIENSIS VAR. THURINGIENSIS.
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公开(公告)号：US3723310A
公开(公告)日：1973-03-27
申请号：US3723310D
申请日：1969-10-07
摘要： FINELY-DIVIDED CLAY HAVING HYDROCARBONS IN INTIMATE ASSOCIATION THEREWITH IS FLOCCULATED AND SETTLED FROM AN AQUEOUS SUSPENSION THEREOF BY ADDING ACRYLIC ACID OR A WATER-DISPERSIBLE ANIONIC ACRYLIC ACID-DERIVED POLYMER, AND ALLOWING RESULTING FLOCCULATED SOLIDS TO SETTLE. SUSPENDED SILICA MAY ALSO BE FLOCCULATED AND SETTLED BY ADDING A WATER-DISPERSIBLE CATIONIC OR NONIONIC POLYMER OR AN INORGANIC SALT AS A SECONDARY FLOCCULANT.
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7.发明授权
公开(公告)号：US3678143A
公开(公告)日：1972-07-18
申请号：US3678143D
申请日：1970-11-25
发明人： HARNISH MARK E , PETERS MERRIT A
摘要： Refractory linings of metallurgical vessels, such as a tundish lined with alumina brick, are protected from the destructive effects of molten metal, skull, and skull removal by applying a coating of special refractory parting composition to the metalcontacting interior surfaces of the refractory lining. The coating is applied after skull removal and prior to returning the vessel to service. The special refractory parting composition consisting of a mixture of chrome ore, periclase, and a magnesium salt, and the particle size distribution are compounded to adhere to the solidified metal of the skull, to be non-adherent to the refractory lining, and to crumble on skull removal to the extent necessary to prevent injury to the refractory lining.
摘要翻译： 冶金容器的耐火衬里，例如衬有氧化铝砖的中间包，通过在耐火衬里的金属接触内表面施加特殊的耐火分级组合物的涂层来保护熔融金属，颅骨和颅骨去除的破坏性作用 。 在颅骨移除后并在使血管返回使用前施用涂层。 由铬矿，镁盐和镁盐的混合物组成的特殊耐火分模组合物和粒度分布复合以粘附到颅骨的固化金属上，不粘附在耐火衬里上，并且破碎 颅骨去除必要的程度，以防止耐火衬里受伤。
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公开(公告)号：US3646987A
公开(公告)日：1972-03-07
申请号：US3646987D
申请日：1969-10-15
发明人： SCHUMACHER JOSEPH S
CPC分类号： B22C5/08
摘要： This invention relates to a method for reducing dust pollution in foundries that use sand molds for casting and recycle the used sand for subsequent molding operations. A quantity of sand is added to the used sand, preferably at the shakeout, so that the total amount of said weighs at least 12 times the weight of the metal previously cast.
摘要翻译： 本发明涉及一种减少铸造厂的粉尘污染的方法，该方法使用砂模来铸造和回收用于后续成型操作的二手砂。 将一定数量的砂子加入到用过的砂子中，优选地在摇匀时，使得所述砂的总重量为预先铸造的金属重量的至少12倍。
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公开(公告)号：US3636872A
公开(公告)日：1972-01-25
申请号：US3636872D
申请日：1970-01-29
发明人： FORCIER ROY E
摘要： A two section refractory block for lining a horizontal cylindrical furnace, such as a copper converter, one section containing a nonradial tuyere for said converter. The two sections of the block are held in abutting relationship to form a boundary extending from the inner radial wall of the converter to an outer radial wall. The sections are restrained against relative radial movement by providing a depression in the boundary surface of the tuyere containing section and a complementary protuberance in the boundary surface of the other section.
摘要翻译： 用于衬里水平圆柱形炉的两段耐火砖，例如铜转炉，一段包含用于所述转炉的非径向风口。 块的两个部分保持邻接关系，以形成从转换器的内部径向壁延伸到外部径向壁的边界。 通过在风口容纳部分的边界表面中设置凹陷并在另一部分的边界表面中设置互补的突起部来限制部分的相对径向运动。
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公开(公告)号：US3516815A
公开(公告)日：1970-06-23
申请号：US3516815D
申请日：1967-04-20
发明人： LIRA EMIL P , FREYTAG ARTHUR H
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