公开(公告)号：US4054638A

公开(公告)日：1977-10-18

申请号：US722264

申请日：1976-09-10

申请人： Noel Dreulle ,  Alain Fould ,  Herve Masson

发明人： Noel Dreulle ,  Alain Fould ,  Herve Masson

IPC分类号： C22B11/00 ,  C21B15/00 ,  C22B3/10 ,  C22B7/00 ,  C22B13/00 ,  C01G3/04 ,  C01G5/00 ,  C01G21/16

CPC分类号： C22B7/007 ,  C22B3/10 ,  C22B7/006 ,  Y02P10/138 ,  Y02P10/234

摘要： A process for the re-utilization of the sulphate residues from the electrolytic treatment of zinc.The residues are digested hot with concentrated HCl in the presence of CaCl.sub.2. PbCl.sub.2 crystallizes on cooling. FeCl.sub.3 is extracted with TBP circulating in the direction of a series of columns and FeCl.sub.3 is extracted in a first column, washed in a second column and re-extracted a third column. The solution which issues is treated with NH.sub.3, resulting in precipitation of the majority of the hydroxides of the metals contained therein, which are subsequently separated, while Ag, Zn and Cu are complexed. Ag is precipitated with (NH.sub.4).sub.2 S.NH.sub.3 is recovered by means of lime. CaCl.sub.2 is re-cycled to the start of the process and Cu and Zn are leached together with the mineral.Application of the process to the recovery of the metals contained in the residues from the digestion of blends.

摘要翻译： 从锌的电解处理中再利用硫酸盐残留物的方法。

公开(公告)号：US4437965A

公开(公告)日：1984-03-20

申请号：US357195

申请日：1982-03-11

申请人： Noel Dreulle ,  Alain Van Ceulen ,  Claude Eusebe

发明人： Noel Dreulle ,  Alain Van Ceulen ,  Claude Eusebe

IPC分类号： C25C1/16 ,  C25C3/20 ,  C25C7/02 ,  C25B11/00

CPC分类号： C25C7/02 ,  Y10T156/10

摘要： The anodes for the electrolytic production of zinc from acid aqueous solutions of sulphate comprise a skin portion formed by conventional anode metal, lead containing from 0.25 to 1.0% silver, and a stiffening reinforcing member of titanium or zirconium. The reduction in thickness of the anodes, which is made possible by the provision of the reinforcing member, results in a substantial saving in the amount of silver-bearing lead which is immobilized, and a substantial reduction in the unit weight of the anodes. The resistance of the lead to anodic corrosion in a sulphuric acid medium is maintained and the resistance to corrosion by passivation of the reinforcing member permits the reinforcing member to be accidentally exposed, without disadvantage. To produce the anodes, the reinforcing members are clad with lead at a temperature of more than 100.degree. by rolling sheets of lead, by casting in a mould or by spraying on molten lead.

摘要翻译： 用于从酸性硫酸水溶液中电解生产锌的阳极包括由常规阳极金属形成的皮肤部分，含有0.25至1.0％的银的铅和钛或锆的加强增强构件。 通过设置加强构件可使减少阳极的厚度导致固定的含银铅的量显着节省，阳极的单位重量显着降低。 导致在硫酸介质中的阳极腐蚀的电阻被保持，并且通过加强构件的钝化的耐腐蚀性允许增强构件被意外地暴露，而没有缺点。 为了生产阳极，通过在模具中铸造或通过喷涂在熔融铅上，通过轧制铅片，使加强构件在大于100℃的温度下用铅包覆。

公开(公告)号：US4168972A

公开(公告)日：1979-09-25

申请号：US834975

申请日：1977-09-20

申请人： Noel Dreulle

发明人： Noel Dreulle

IPC分类号： C22C18/00 ,  C22C18/04 ,  C23C2/06 ,  C22C17/00

CPC分类号： C22C18/04 ,  C22C18/00 ,  C23C2/06 ,  Y10T428/12799

摘要： An alloy suitable for the galvanization of steels by an immersion galvanization process, including gavanization of steels containing silicon, which alloy comprises zinc of commercial purity and has a lead content of the order of 1,000 to 20,000 p.p.m. by weight, an aluminium content of from 100 to 5,000 p.p.m. by weight, a magnesium content of from 10 to 1,000 p.p.m. by weight and a tin content of from 300 to 20,000 p.p.m. by weight.A galvanization process using the said alloy is also described.

摘要翻译： 一种适用于通过浸镀方法镀锌的合金，包括含有硅的钢的发泡，该合金包含商业纯度的锌，铅含量为1,000至20,000p.p.m。 的铝含量为100至5,000p.p.m。 的镁含量为10至1,000p.p.m。 ，锡含量为300〜20000p.p.m。 重量。

公开(公告)号：US4238532A

公开(公告)日：1980-12-09

申请号：US28919

申请日：1979-04-10

申请人： Noel Dreulle

发明人： Noel Dreulle

IPC分类号： C22C18/00 ,  C22C18/04 ,  C23C2/06 ,  C23C1/02

CPC分类号： C22C18/04 ,  C22C18/00 ,  C23C2/06 ,  Y10T428/12799

摘要： An alloy suitable for the galvanization of steels by an immersion galvanization process, including gavanization of steels containing silicon, which alloy comprises zinc of commercial purity and has a lead content of the order of 1000 to 20000 p.p.m. by weight, an aluminium content of from 100 to 5000 p.p.m. by weight, a magnesium content of from 10 to 1000 p.p.m. by weight and a tin content of from 300 to 20000 p.p.m. by weight.A galvanization process using the said alloy is also described.

摘要翻译： 一种适用于通过浸镀镀锌工艺镀锌的合金，包括含有硅的钢的杂化，该合金包含商业纯度的锌，铅含量为1000-20000p.p.m。 的铝含量为100至5000p.p.m。 的镁含量为10至1000p.p.m。 ，锡含量为300〜20000p.p.m。 重量。 还描述了使用所述合金的镀锌工艺。

公开(公告)号：US4070260A

公开(公告)日：1978-01-24

申请号：US656966

申请日：1976-02-10

申请人： Noel Dreulle

发明人： Noel Dreulle

IPC分类号： C22B19/20 ,  C01B33/12 ,  C01G9/06 ,  C22B20060101 ,  C22B3/00 ,  C22B3/04 ,  C22B19/00 ,  C22C3/00 ,  C25C1/16 ,  C25C1/20

CPC分类号： C22B19/22 ,  Y02P10/234

摘要： A process of leaching silicated zinc ores with sulfuric acid in which the ore is reacted at elevated temperature with at least a stoichiometric amount of sulfuric acid, treating products of the reaction with a predetermined quantity of hot water, filtering the zinc sulfate solution from precipitated silica, washing with a further predetermined quantity of hot water (the total amount of hot water used being determined so as to obtain the desired concentration of zinc in solution). The zinc is later recovered electrolytically. A 1 to 6N sulfuric acid solution may be used in which case a gelatinous mass is formed upon reaction and then it is evaporated at 100.degree. C of at least 60% of its water content. Alternatively the ore can be malaxated with about 20% stoichiometric excess concentrated sulfuric acid, and filtered at out at elevated temperature.

摘要翻译： 用硫酸浸提硅酸锌矿石的过程，其中矿石在升高的温度下与至少化学计量的硫酸反应，用预定量的热水处理反应产物，从沉淀二氧化硅中过滤硫酸锌溶液 用进一步预定量的热水洗涤（确定所用热水的总量，以获得溶液中所需的锌浓度）。 锌后来电解回收。 可以使用1至6N的硫酸溶液，在这种情况下，反应时形成凝胶状物质，然后在100℃下蒸发至少60％的水含量。 或者，矿石可以用约20％化学计量过量的浓硫酸进行二次混合，并在高温下过滤。

公开(公告)号：US4439397A

公开(公告)日：1984-03-27

申请号：US361081

申请日：1982-03-23

申请人： Noel Dreulle

发明人： Noel Dreulle

IPC分类号： C22C18/00 ,  C23C2/06

CPC分类号： C23C2/06 ,  C22C18/00

摘要： Process for adjusting the composition of a zinc alloy for the galvanization of steels, the alloy having a composition including the following components expressed in ppm (by weight): lead: 1,000 to 15,000, and as additives aluminium: 100 to 5,000, tin: 300 to 20,000, and magnesium: 10 to 1,000 and being deficient in at least one of said additives, said process comprising adding to the zinc alloy one or more metal compositions which are soluble in molten zinc and which contain a relatively high proportion of the additive in which the alloy is deficient, the amount of the or each metal composition being sufficient to compensate the deficit of the additive. The tin composition is virtually pure tin; the magnesium composition is a ternary alloy of zinc, magnesium (5,000 to 50,000 ppm) and aluminium (10 to 500 ppm); and the aluminium composition is a binary zinc/aluminium alloy containing about 5% of aluminium.

摘要翻译： 用于调整用于钢的镀锌的锌合金的组成的方法，该合金具有以ppm（重量）表示的以下成分的组成：铅：1,000〜15,000，作为添加剂的铝：100〜5000，锡：300 至20,000，镁：10至1,000，并且至少一种所述添加剂不足，所述方法包括向锌合金中加入一种或多种可溶于熔融锌的金属组合物，并且其中含有相对较高比例的添加剂 合金缺乏的情况下，该金属组合物或每种金属组合物的量足以补偿添加剂的缺陷。 锡组成实际上是纯锡; 镁成分是锌，镁（5,000〜50,000ppm）和铝（10〜500ppm）的三元合金。 并且铝组合物是含有约5％的铝的二元锌/铝合金。

公开(公告)号：US4110127A

公开(公告)日：1978-08-29

申请号：US697761

申请日：1976-06-21

申请人： Michel Longuepee ,  Noel Dreulle

发明人： Michel Longuepee ,  Noel Dreulle

IPC分类号： C09D1/02 ,  C09D5/08 ,  C23C22/13 ,  C23C22/23 ,  C23F7/08

CPC分类号： C09D1/02 ,  C09D5/08 ,  C23C22/13 ,  C23C22/23 ,  Y10T428/12583

摘要： Solution and procedure of depositing a coating on the surfaces of zinc-coated ferrous metal parts which protects against corrosion in the presence of water. The solution is made up by adding to water, per liter of final solution, of 1 to 40 grams of sodium metasilicate, 14 to 40 milliliters of phosphoric acid, density 1.71 g/ml, from 1 to 40 grams of sodium nitrate, from 10 to 50 grams of anhydrous zinc chloride and the pH is adjusted to a value between 2.3 and 3.8. Preferably nickel chloride is added. For use, the solution is heated to a temperature ranging from 15.degree. to 75.degree. C and brought into contact with the parts to be treated for a period from 20 to 72 hours. The deposit is continuous, hard, resistant to shocks and abrasion and imparts an efficient and lasting protection to galvanized parts in corrosive waters. The invention is useful for the protection of piping in the building industry.

摘要翻译： 在镀锌黑色金属部件的表面上沉积涂层的方法和程序，其在水的存在下防止腐蚀。 该溶液通过向每升最终溶液中加入1至40克偏硅酸钠，14至40毫升磷酸，密度为1.71克/毫升，1至40克硝酸钠，10份 至50克无水氯化锌，将pH调节至2.3至3.8之间。 优选加入氯化镍。 为了使用，将溶液加热至15℃至75℃的温度，并与待处理的部件接触20至72小时。 沉积物是连续的，坚硬的，耐冲击和磨损，并且对腐蚀性水中的镀锌部件提供有效和持久的保护。 本发明对于保护建筑行业的管道是有用的。

公开(公告)号：US4126469A

公开(公告)日：1978-11-21

申请号：US863673

申请日：1977-12-23

申请人： Michel Longuepee ,  Noel Dreulle

发明人： Michel Longuepee ,  Noel Dreulle

IPC分类号： C09D1/02 ,  C09D5/08 ,  C23C22/13 ,  C23C22/23 ,  C23F7/12 ,  C23F11/08

CPC分类号： C09D1/02 ,  C09D5/08 ,  C23C22/13 ,  C23C22/23 ,  Y10T428/12583

摘要： Solution and procedure of depositing a coating on the surfaces of zinc-coated ferrous metal parts which protects against corrosion in the presence of water. The solution is made up by adding to water, perliter of final solution, of 1 to 40 grams of sodium metasilicate, 14 to 40 milliliters of phosphoric acid, specific gravity 1.71, from 1 to 40 grams of sodium nitrate, from 10 to 50 grams of anhydrous zinc chloride and the pH is adjusted to a value between 2.3 and 3.8. Preferably nickel chloride is added. For use, the solution is heated to a temperature ranging from 15.degree. to 75.degree. C and brought into contact with the parts to be treated for a period from 20 to 72 hours. The deposit is continuous, hard, resistant to shocks and abrasion and imparts an efficient and lasting protection to galvanized parts in corrosive waters. The invention is useful for the protection of piping in the building industry.

摘要翻译： 在镀锌黑色金属部件的表面上沉积涂层的方法和程序，其在水的存在下防止腐蚀。 该溶液通过加入水，最终溶液，1至40克偏硅酸钠，14至40毫升磷酸，比重为1.71，1至40克硝酸钠，10至50克， 的无水氯化锌，将pH调节至2.3至3.8之间。 优选加入氯化镍。 为了使用，将溶液加热至15℃至75℃的温度，并与待处理的部件接触20至72小时。 沉积物是连续的，坚硬的，耐冲击和磨损，并且对腐蚀性水中的镀锌部件提供有效和持久的保护。 本发明对于保护建筑行业的管道是有用的。

公开(公告)号：US4092401A

公开(公告)日：1978-05-30

申请号：US758136

申请日：1977-01-10

申请人： Noel Dreulle

发明人： Noel Dreulle

IPC分类号： C01B7/01 ,  C01B7/03 ,  C01B17/69 ,  C01F11/46 ,  C01G49/06 ,  C01B7/08 ,  C01F11/48 ,  C01G49/02

CPC分类号： C01B7/03 ,  C01B17/69 ,  C01F11/46 ,  C01G49/06 ,  Y10S423/01

摘要： Process for the recovery of pigment-grade iron oxide and technical hydrochloric acid of predetermined molarity, from iron chloride solutions such as pickling solutions containing hydrochloric acid. The iron chloride solution is concentrated until the molarity of the chloride ion therein is the same as the molarity of the hydrochloric acid which it is desired to produce. Concentrated sulfuric acid in slight stoichiometric excess relative to the iron, is then added to the iron chloride solution, which solution is thereafter evaporated to dryness. The distillation from this evaporation is hydrochloric acid of the predetermined molarity, and the dry residue is iron sulfate. The iron sulfate is calcined to drive off sulfur dioxide and sulfur trioxide and to leave iron oxide which may contain sulfates; and to remove these latter, the iron oxide is leached with dilute hydrochloric acid and is thereafter washed with water. The washed iron oxide is dried and micropulverized to produce a red iron oxide pigment. The sulfur oxides driven off during calcination may be washed with concentrated sulfuric acid and recycled to the sulfating step, the concentrated sulfuric acid absorbing the sulfur trioxide and letting pass the sulfur dioxide which can if desired be used in the catalytic production of further sulfuric acid. Alternatively, the sulfur oxides can be washed with lime milk to produce calcium sulfite and calcium sulfate, which upon filtration and air drying becomes hydrated calcium sulfate usable as gypsum.

摘要翻译： 用于回收颜料级氧化铁和工业盐酸的预定摩尔浓度的方法，来自氯化铁溶液，例如含有盐酸的酸洗溶液。 将氯化铁溶液浓缩直到其中的氯离子的摩尔浓度与所希望产生的盐酸的摩尔浓度相同。 然后将相对于铁稍微化学计量过量的浓硫酸加入到氯化铁溶液中，然后将该溶液蒸发至干。 来自该蒸发的蒸馏是预定摩尔浓度的盐酸，干燥残余物是硫酸铁。 硫酸铁被煅烧以除去二氧化硫和三氧化硫，并留下可能含有硫酸盐的氧化铁; 为了除去这些后者，用稀盐酸浸出氧化铁，然后用水洗涤。 将经洗涤的氧化铁干燥并微粉化以产生红色氧化铁颜料。 在煅烧过程中驱除的硫氧化物可以用浓硫酸洗涤并再循环到硫酸化步骤，浓硫酸吸收三氧化硫，并使二氧化硫通过，如果需要，可以将其用于催化生产另外的硫酸。 或者，硫氧化物可以用石灰乳洗涤以产生亚硫酸钙和硫酸钙，其在过滤和空气干燥时变成可用作石膏的水合硫酸钙。