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公开(公告)号：US5248386A
公开(公告)日：1993-09-28
申请号：US848886
申请日：1992-03-10
IPC分类号： C23F1/26
CPC分类号： C23F1/26
摘要： A substantially nitrate-free solution for milling products of refractory metals, especially titanium, which milling solution comprises: (a) about 20-100 g/l hydrofluoric acid; (b) a hydrogen inhibitor selected from the group comprising of: about 55-650 g/l of sodium chlorate, about 180-650 g/l of ammonium peroxysulfate, and at least about 10 g/l of hydrogen peroxide; and (c) a balance of water and impurities. A method for chemically milling, etching and/or pickling metal products, such as titanium alloy forgings, with the aforementioned solution is also disclosed.
摘要翻译： 用于研磨难熔金属，特别是钛的产品的基本上不含硝酸盐的溶液，该研磨溶液包含：（a）约20-100g / l氢氟酸; （b）选自以下的氢抑制剂：约55-650g / l氯酸钠，约180-650g / l过硫酸铵和至少约10g / l过氧化氢; 和（c）水和杂质的平衡。 还公开了用上述溶液化学研磨，蚀刻和/或酸洗金属产品如钛合金锻件的方法。
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2.发明授权
公开(公告)号：US5378325A
公开(公告)日：1995-01-03
申请号：US85191
申请日：1993-06-30
摘要： A low temperature salt bath for the electrolysis of metal oxides to produce the corresponding metal. The bath comprises a first salt, comprised of at least one fluoride salt, and a second salt, comprised of at least one chloride salt. The fluoride salt increases the metal oxide solubility in the molten salt bath, and the chloride salt reduces the bath liquidus temperature of the salt bath. The preferred process of practicing the invention includes using an anode consisting essentially of carbonaceous material and having an effective surface area about equal to the projected surface area of the anode.
摘要翻译： 用于电解金属氧化物的低温盐浴产生相应的金属。 该浴包括由至少一种氟化物盐构成的第一种盐和由至少一种氯化物盐组成的第二种盐。 氟化物盐增加了熔融盐浴中的金属氧化物溶解度，氯化物盐降低了盐浴的浴液温度。 实施本发明的优选方法包括使用基本上由碳质材料组成的阳极，并且具有大约等于阳极的投影表面积的有效表面积。
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公开(公告)号：US5215624A
公开(公告)日：1993-06-01
申请号：US807725
申请日：1991-12-16
IPC分类号： C23F1/26
CPC分类号： C23F1/26
摘要： A substantially nitrate-free solution for milling products of refractory metals, especially titanium, which solution contains: (a) about 5-100 g/l of ammonium bifluoride; (b) up to about 90 g/1 of hydrochloric acid; (c) a hydrogen inhibitor which may be either sodium chlorate or ammonium peroxysulfate; and (d) a balance of water and impurities. There is further disclosed a method for chemically milling, etching and/or pickling metal products, such as titanium alloy forgings, with the aforementioned solution.
摘要翻译： 用于研磨难熔金属，特别是钛的产品的基本上不含硝酸盐的溶液，该溶液含有：（a）约5-100g / l的二氟化铵; （b）至多约90g / l的盐酸; （c）可以是氯酸钠或过硫酸铵的氢抑制剂; 和（d）水和杂质的平衡。 还公开了一种用上述溶液化学研磨，蚀刻和/或酸洗金属产品（例如钛合金锻件）的方法。
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公开(公告)号：US4943426A
公开(公告)日：1990-07-24
申请号：US208657
申请日：1988-06-20
IPC分类号： C01F5/32
CPC分类号： C01F5/32 , Y10S423/12
摘要： A method for regulating the temperature at which two or more substances combine to form end product in the reactor, at least one of said substances produced from two or more reactants in the reactor, said method comprising: combining at least some of the reactants in a vessel thermally isolated from the reactor to produce substance in the vessel; and transferring substance from said vessel to the reactor. The invention constitutes an improved method for producing magnesium chloride by heating magnesium carbonate in packed bed reactor; passing carbon monoxide and chlorine gas through the packed bed; and withdrawing carbon dioxide from above the packed bed and molten magnesium chloride from below said bed. This improvement consists essentially of reacting at least some carbon monoxide and chlorine in a continuously-cooled vessel to form phosgene; and substituting a sufficient amount of phosgene from the vessel for the carbon monoxide and chlorine gas otherwise passed through said packed bed.
摘要翻译： 一种用于调节两种或多种物质在反应器中结合形成最终产物的温度的方法，所述反应器中由两种或多种反应物产生的至少一种所述物质，所述方法包括：将至少一种反应物在 容器与反应器热隔离以在容器中产生物质; 并将物质从所述容器转移到反应器。 本发明构成了通过在填充床反应器中加热碳酸镁来生产氯化镁的改进方法; 使一氧化碳和氯气通过填充床; 并从填充床上方排出二氧化碳，并从该床下面排出熔融的氯化镁。 这种改进主要包括使连续冷却的容器中的至少一些一氧化碳和氯反应以形成光气; 并且从容器中取代足够量的光气用于一氧化碳和氯气，否则通过所述填充床。
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