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1.发明申请公开(公告)号：US20190177855A1
公开(公告)日：2019-06-13
申请号：US16324977
申请日：2017-08-14
摘要： Disclosed is a method of making a treatment composition. A lithium cation and carbon dioxide are combined in an aqueous medium to form the treatment composition comprising lithium carbonate in situ. Also disclosed is a system and method for maintaining a treatment bath formed from a treatment composition comprising lithium carbonate. Carbon dioxide and/or a lithium salt are supplied to the bath in an amount sufficient to maintain the pH of the treatment bath at 9.5 to 12.5, lithium in an amount of 5 ppm to 5,500 ppm (calculated as lithium cation) and carbonate in an amount of 15 ppm to 25,000 ppm (calculated as carbonate) based on total weight of the treatment bath. Substrates treated with the composition, system and method also are disclosed.
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公开(公告)号：US06846416B2
公开(公告)日：2005-01-25
申请号：US09916532
申请日：2001-07-30
申请人： Hiroaki Nasu , Wataru Matsutani
发明人： Hiroaki Nasu , Wataru Matsutani
CPC分类号： C02F1/5254 , C02F1/5236 , C02F1/5245 , C02F1/62 , C02F2101/22 , C02F2101/303 , C02F2101/34 , C02F2209/06 , C23C2222/10 , Y10S210/912 , Y10S210/913
摘要： The invention relates to a process for treating a chromate waste liquid containing an organic acid component. This process includes (a) adding a chromium precipitation accelerating agent containing at least one of a calcium component and a magnesium component, to the chromate waste liquid; and (b) adjusting the chromate waste liquid to having a first pH of 9 or higher, thereby precipitating a chromium component from the chromate waste liquid and thereby reducing a concentration of a dissolved chromium component of the chromate waste liquid.
摘要翻译： 本发明涉及一种处理含有机酸成分的铬酸盐废液的方法。 该方法包括（a）向铬酸盐废液中添加含有钙成分和镁成分中的至少一种的铬析出促进剂; 和（b）将铬酸盐废液调节为具有9或更高的第一pH值，从而从铬酸盐废液中沉淀铬成分，从而降低铬酸盐废液的溶解铬成分的浓度。
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公开(公告)号：US6020030A
公开(公告)日：2000-02-01
申请号：US74136
申请日：1998-05-07
摘要： An aluminum alloy substrate is pretreated with an aqueous solution containing an organophosphorus compound, preferably a vinyiphosphonic acid-acrylic acid copolymer, before coating the substrate with a polymer. Passing the substrate through the solution contaminates it with aluminum and other elements. The pretreatment solution is rejuvenated by removing aluminum with a cation exchange resin that preferably contains a styrene-divinyl benzene copolymer functionalized with sulfonate groups. Rinsing the substrate contaminates the rinse water with the copolymer. The rinse water is concentrated by reverse osmosis or membrane ultrafiltration and returned to the pretreatment solution.
摘要翻译： 在用聚合物涂覆基材之前，用含有机磷化合物，优选乙炔基 - 丙烯酸共聚物的水溶液预处理铝合金基材。 将基材通过溶液将其与铝和其他元素污染。 通过用优选含有用磺酸盐基团官能化的苯乙烯 - 二乙烯基苯共聚物的阳离子交换树脂除去铝来使预处理溶液恢复活力。 冲洗基材会用共聚物污染漂洗水。 冲洗水通过反渗透或膜超滤浓缩并返回到预处理溶液中。
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公开(公告)号：US4668305A
公开(公告)日：1987-05-26
申请号：US689197
申请日：1985-01-07
申请人： David Y. Dollman , Mark W. McMillen
发明人： David Y. Dollman , Mark W. McMillen
摘要： The life of chromium phosphate coating baths is extended by at least fully restoring depleted Cr.sup.VI ; bath efficiencies are significantly improved.
摘要翻译： 磷酸铬镀层的寿命延长至少完全恢复耗尽的CrVI; 洗浴效率明显提高。
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公开(公告)号：US3032447A
公开(公告)日：1962-05-01
申请号：US77644358
申请日：1958-11-26
申请人： PARKER RUST PROOF CO
发明人： WERNER RAUSCH
摘要： In a process of forming a chromate coating on a series of articles of one of the metals, zinc, alloys consisting predominantly of zinc, magnesium, cadmium, copper, silver or brass by treating them with a single aqueous acidic solution containing hexavalent chromium in which the metal or trivalent chromium tends to accumulate in the solution during the treatment and interfere with the coating, the concentration of interfering metal is maintained at a level below that at which it deletenously affects the coating by withdrawing portions of the solution, passing them through a bed of a cation-exchange resin in a form containing both hydrogen ions and other cations that are harmless to the coating in proportions such that the solution is maintained in the effective pH range, and then returning them to the main body of the solution. The other cations may be those of alkali metals or ammonium. Treatment of the solution (which may also contain simple or complex fluoride ions, phosphate ions, sulphate ions, chloride ions, nitrate ions, ferricyanide ions, or arsenate ions) with the resin may be either continuous or intermittent; and two beds of resin are preferably used so that treatment of the solution and regeneration of the resin may be performed simultanously.
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公开(公告)号：US20190136385A1
公开(公告)日：2019-05-09
申请号：US16076180
申请日：2017-02-07
摘要： The purpose of the present invention is to provide a method for replenishing an aluminum metal chemical conversion bath, the method being capable of maintaining the corrosion resistance and coating film adhesiveness of the chemical conversion coating formed even if the aluminum metal chemical conversion bath is used continuously. Provided is a method for replenishing an aluminum metal chemical conversion bath with a replenishing agent, wherein the replenishing agent comprises a zirconium salt and/or a titanium salt and an effective fluoride, and the replenishing agent is supplied so that the ratio F/Al of the fluorine ion concentration (mg/L) with respect to the aluminum ion concentration (mg/L) in the aluminum metal chemical conversion bath is 1.8-4.5.
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公开(公告)号：US09932677B2
公开(公告)日：2018-04-03
申请号：US14636457
申请日：2015-03-03
申请人： Henkel AG & Co. KGaA
发明人： Jan-Willem Brouwer , Frank-Oliver Pilarek , Kirsten Agnes Lill , Fernando Jose Resano Artalejo , Natascha Henze
IPC分类号： C23C22/60 , C23C22/53 , C23C22/78 , C23C22/34 , C23C22/66 , C23C22/73 , C23C22/77 , C23C22/83 , C23C22/86 , C23G1/22 , C23G1/36 , G05D21/02 , C23C22/07 , C23C22/00
CPC分类号： C23C22/78 , C23C22/07 , C23C22/34 , C23C22/60 , C23C22/66 , C23C22/73 , C23C22/77 , C23C22/83 , C23C22/86 , C23G1/22 , C23G1/36 , G05D21/02
摘要： The present invention relates to a method for serial surface treatment of metallic components comprising aluminum surfaces, wherein an alkaline pretreatment is followed by a conversion treatment. According to the invention, the intention during the alkaline pretreatment is that a maximum value for the concentration of dissolved zinc is not exceeded, in order to ensure a sufficient quality of the corrosion-protective coating on the aluminum surface of the components following the surface treatment. In a preferred embodiment, the content of dissolved zinc is effectively held below the respective bath-typical maximum value of dissolved zinc by the addition of compounds constituting a source of sulfide ions. The functionality of the surface treatment can be additionally increased by likewise controlling the content of dissolved aluminum in the alkaline pretreatment such that, by adding compounds constituting a source for silicate anions, a threshold value for dissolved aluminum is not exceeded.
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9.发明申请公开(公告)号：US20170283955A1
公开(公告)日：2017-10-05
申请号：US15618229
申请日：2017-06-09
申请人： Henkel AG & Co. KGaA
发明人： Jan-Willem Brouwer , Christian Stromberg , Frank-Oliver Pilarek , Jens Kroemer , Fernando Jose Resano Artalejo , Natascha Henze
摘要： A method for corrosion protection treatment, comprising contacting a series of components having metallic surfaces of iron and/or zinc with a passivating aqueous pretreatment solution, present in a system tank, containing compounds of the elements zirconium and/or titanium, and contacting with a source of fluoride ions wherein a portion of the pretreatment solution is discarded and replaced with a volume portion of one or more such replenishment solutions which in total are at least of equal size, by metered addition to the system tank of the pretreatment and wherein discarding as a function of the molar ratio of the elements fluorine to zirconium and/or titanium must not drop below a predefined value, the metered addition of replenishment solution takes place such that maintaining the concentration of the elements zirconium and/or titanium in the passivating aqueous pretreatment solution in the form of water-soluble compounds is ensured.
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公开(公告)号：US5904785A
公开(公告)日：1999-05-18
申请号：US765934
申请日：1997-02-11
申请人： Kenji Aizawa , Yutaka Okabayashi
发明人： Kenji Aizawa , Yutaka Okabayashi
CPC分类号： C23C22/86 , C23C22/362 , C23C22/73
摘要： To prevent the deterioration in water-resistant secondary adherence that occurs during prolonged use of a fluoride-containing phosphate conversion coating liquid composition to form a conversion coating on metal surfaces that are at least partly aluminiferous, the aluminum compound-containing sludge produced in the phosphate conversion coating liquid composition as it is used is coagulated and sedimented by adding at least one cationic polymeric coagulant to the sludge-containing phosphate conversion coating liquid composition.
摘要翻译： PCT No.PCT / US95 / 08228 Sec。 371日期1997年2月11日 102（e）日期1997年2月11日PCT提交1995年7月11日PCT公布。 公开号WO96 / 01914 日期1996年1月25日为了防止在长期使用含氟化物的磷酸盐转化涂布液组合物中在至少部分含有铝的金属表面上形成转化膜时发生的耐水二次粘附的劣化，含铝化合物 在使用的磷酸盐转化涂覆液体组合物中产生的污泥通过向含污泥的磷酸盐转化涂覆液体组合物中加入至少一种阳离子聚合物凝结剂而凝结沉淀。
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