专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO1988004874A1 FLAT ELECTRIC HEATING ELEMENTS 审中-公开
标题翻译：平面电加热元件
公开(公告)号：WO1988004874A1
公开(公告)日：1988-06-30
申请号：PCT/BE1987000019
申请日：1987-12-15
申请人： COMPAGNIE ROYALE ASTURIENNE DES MINES, SOCIETE ... , DUBOIS, André , MORMONT, Daniel , CONTZEN, Bernard
发明人： COMPAGNIE ROYALE ASTURIENNE DES MINES, SOCIETE ...
IPC分类号： H05B03/28
CPC分类号： H05B3/286 , H05B3/283 , H05B3/30
摘要： Flat electric heating elements obtained by applying a filiform electrically conducting layer (9) on a porous insulating support sheet (4), by covering said conducting layer (9) and its support (8) with one or a plurality of porous insulating covering sheets (10) of the same nature as the support sheet, by making integral the assembly by means of a binder or an impregnating agent, and by hardening the resulting assembly under press by the setting of the binder or by the polymerization of the impregnating agent.
摘要翻译：通过在多孔绝缘支撑片（4）上施加丝状导电层（9）而获得的扁平电加热元件，通过用一个或多个多孔绝缘覆盖片（...）覆盖所述导电层（9）和其支撑体（8） 10）与支撑片材具有相同的性质，通过使用粘合剂或浸渍剂制成整体，并且通过粘合剂的凝固或通过浸渍剂的聚合在压制下硬化所得的组件。

2. 发明授权

US4054638A Process for treating residues from the electrolytic processing of zinc, by recovery of the metals therein 失效
标题翻译：通过回收其中的金属来处理锌的电解处理残渣的方法
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。

3. 发明授权

US4437965A Reinforced lead anode for the electrolytic production of zinc from sulphate solution and process for the preparation thereof 失效
标题翻译：用于从硫酸盐溶液中电解生产锌的强化铅阳极及其制备方法
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。

4. 发明授权

US4064033A Electrolytic cell for electrolytically preparing a metal in pulverulent form 失效
标题翻译：用于电解制备粉末状金属的电解槽
公开(公告)号：US4064033A
公开(公告)日：1977-12-20
申请号：US566111
申请日：1975-04-08
申请人： Roger Dekeister , Gilbert Lemaire , Daniel Marzys
发明人： Roger Dekeister , Gilbert Lemaire , Daniel Marzys
IPC分类号： C25C1/00 , C25C5/00 , C25C5/02 , C25C7/00 , C25C7/08
CPC分类号： C25C5/02 , C25C7/002
摘要： A method and apparatus for electrolytically preparing in an electrolytic cell metal, preferably zinc, in pulverulent form from a compound of the metal, for example, zinc oxide, in an aqueous ionized solution, for example potassium hydroxide of a concentration of 100 to 800 g/l, the solution preferably containing 10 to 350 of zinc per liter. The cathode at the bottom of the electrolytic cell comprises a layer of the same pulverulent metal, for example zinc, into which a grid cathode current input is introduced, the cathode current applied being sufficient to prevent the formation of metal in continuous form, preferably between 8 and 18 A/dm.sup.2. The anode is disposed in the cell above the cathode. New solution is injected about the lower periphery of the cell so as to set the solution and pulverulent metal is turbulent suspension. The suspension is drawn off by a pump and allowed to settle in a settling tank the pulverulent metal being removed by a conveyor screw, the solution spilling over into a storage tank and then being pumped back to the cell and reintroduced by the injectors. A plurality of cells may be arranged in a stack or columns, operating sequentially, and utilizing the same settling tank, associated pumps, and other auxiliary equipment.
摘要翻译：一种浓度为100〜800g的电解池中的金属离子溶液例如氢氧化钾中的金属化合物例如氧化锌的粉末状电解槽金属，优选为锌电解制备的方法和装置， / l，溶液优选每升含有10至350个锌。电解池底部的阴极包括一个相同的粉状金属（例如锌）的层，其中引入栅极阴极电流，施加的阴极电流足以防止形成连续形式的金属，优选在 8和18A / dm2。阳极设置在阴极上方的电池中。围绕电池的下边缘注入新的溶液，以便设定溶液和粉状金属是湍流悬浮液。悬浮液由泵抽出并使其沉降在沉淀槽中，粉状金属通过输送螺杆除去，溶液溢出到储存罐中，然后被泵送回单元并由喷射器重新引入。多个电池可以以堆叠或列布置，顺序地操作，并且利用相同的沉淀池，相关联的泵和其它辅助设备。

5. 发明授权

US4070437A Process for the recovery of metal chlorides from jarosite sludges resulting from the sulphuric acid processing of ores 失效
标题翻译：从矿石硫酸加工产生的黄钾铁矾渣中回收金属氯化物的方法
公开(公告)号：US4070437A
公开(公告)日：1978-01-24
申请号：US645896
申请日：1975-12-31
申请人： Alain Van Ceulen
发明人： Alain Van Ceulen
IPC分类号： C22B58/00 , C21B15/00 , C22B3/10 , C22B7/00 , C22B11/00 , C22B13/00 , C22B15/00 , C22B19/30 , C01G1/06 , C01F11/46 , C01G49/10
CPC分类号： C22B7/007 , C22B3/10 , Y02P10/234
摘要： In a process for the recovery of metal chlorides from jarosite in sludges which result from the sulphuric acid processing of ores, the sludge is treated with an aqueous solution of an alkaline earth metal chloride. This solution contains free hydrochloric acid and is in excess stoichiometric ratio to the sulphate content of the sludge. The insoluble materials are separated from the metallic chloride solution by filtering, and are stripped of metallic chlorides by washing and further filtering. The metallic chloride solutions are then collected. The alkaline earth chloride is preferably calcium chloride. The process is particularly, but not exclusively, applicable to recovering metals from jarosite-type sludge resulting from the processing of zinc ore.
摘要翻译：在从矿石硫酸加工产生的污泥中的黄钾铁矾中回收金属氯化物的过程中，用碱土金属氯化物水溶液处理污泥。该溶液含有游离盐酸，并且与污泥的硫酸盐含量相比超过化学计量比。通过过滤将不溶物质与金属氯化物溶液分离，并通过洗涤和进一步过滤汽提金属氯化物。然后收集金属氯化物溶液。碱土金属氯化物优选为氯化钙。该方法特别但不排他地适用于从由锌矿加工产生的黄钾铁矾型污泥回收金属。

6. 发明授权

US4070260A Process of sulfuric acid leaching silicated zinc ores 失效
标题翻译：硫酸浸出硅酸锌矿石的工艺
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。

7. 发明授权

US4115210A Method of electrolytically preparing a metal in pulverulent form 失效
标题翻译：电解制备粉末状金属的方法
公开(公告)号：US4115210A
公开(公告)日：1978-09-19
申请号：US804152
申请日：1977-06-06
申请人： Roger Dekeister , Gilbert Lemaire , Daniel Marzys
发明人： Roger Dekeister , Gilbert Lemaire , Daniel Marzys
IPC分类号： C25C5/02 , C25C7/00 , C25C5/00
CPC分类号： C25C5/02 , C25C7/00
摘要： A method and apparatus for electrolytically preparing in an electrolytic cell metal, preferably zinc, in pulverulent form from a compound of the metal, for example, zinc oxide, in an aqueous ionized solution, for example potassium hydroxide of a concentration of 100 to 800 g/l, the solution preferably containing 10 to 350 of zinc per liter. The cathode at the bottom of the electrolytic cell comprises a layer of the same pulverulent metal, for example zinc, into which a grid cathode current input is introduced, the cathode current applied being sufficient to prevent the formation of metal in continuous form, preferably between 8 and 18 A/dm.sup.2. The anode is disposed in the cell above the cathode. New solution is injected about the lower periphery of the cell so as to set the solution and pulverulent metal is turbulent suspension. The suspension is drawn off by a pump and allowed to settle in a settling tank the pulverulent metal being removed by a conveyor screw, the solution spilling over into a storage tank and then pump back to the cell and reintroduced by the injectors. A plurality of cells may be arranged in a stack or columns, operating sequentially, and utilizing the same settling tank, associated pumps, and other auxiliary equipment.
摘要翻译：一种浓度为100〜800g的电解池中的金属离子溶液例如氢氧化钾中的金属化合物例如氧化锌的粉末状电解槽金属，优选为锌电解制备的方法和装置， / l，溶液优选每升含有10至350个锌。电解池底部的阴极包括一个相同的粉状金属（例如锌）的层，其中引入栅极阴极电流，施加的阴极电流足以防止形成连续形式的金属，优选在 8和18A / dm2。阳极设置在阴极上方的电池中。围绕电池的下边缘注入新的溶液，以便设定溶液和粉状金属是湍流悬浮液。悬浮液由泵抽出并允许沉淀槽中的粉状金属被输送螺杆除去，溶液溢出到储存罐中，然后泵送回细胞并由喷射器重新引入。多个电池可以以堆叠或列布置，顺序地操作，并且利用相同的沉淀池，相关联的泵和其它辅助设备。

8. 发明授权

US4092401A Process for reutilization of iron chlorides in aqueous solution 失效
标题翻译：在水溶液中再利用氯化铁的方法
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。

9. 发明授权

US4005061A Method for recovering potassium hydroxide and zinc oxide from potassium zincate solutions 失效
标题翻译：从锌酸钾溶液中回收氢氧化钾和氧化锌的方法
公开(公告)号：US4005061A
公开(公告)日：1977-01-25
申请号：US660724
申请日：1976-02-23
申请人： Gilbert Lemaire
发明人： Gilbert Lemaire
IPC分类号： C01D1/34 , C01G9/02 , H01M6/52 , H01M8/22 , C01D1/32
CPC分类号： H01M8/225 , C01D1/34 , C01G9/02 , H01M6/52 , Y02W30/84
摘要： Method for recovering potassium hydroxide and zinc oxide from potassium zincate solutions, characterized in that a selective solvent of potassium hydroxide, which is miscible with water, is added to the zincate solution, in that the zinc oxide precipitate thus obtained is filtered and in that the mother liquors for separating the potassium hydroxide solution from the solvent are treated. The invention applies to all electrochemical storage cell batteries having a zinc negative electrode in which it is required to purify the electrolyte with a view to scavenging it.
摘要翻译：从锌酸钾溶液中回收氢氧化钾和氧化锌的方法，其特征在于将与水混溶的氢氧化钾的选择性溶剂加入到锌酸盐溶液中，因为所得到的氧化锌沉淀过滤，处理从溶剂中分离氢氧化钾溶液的母液。本发明适用于具有锌阴极的所有电化学蓄电池，其中需要净化电解质以清除电解质。

10. 发明专利

DE2515714C3 未知
公开(公告)号：DE2515714C3
公开(公告)日：1980-09-04
申请号：DE2515714
申请日：1975-04-10
申请人： COMPAGNIE ROYALE ASTURIENNE DES MINES, PARIS
发明人： DEKEISTER, ROGER , LEMAIRE, GILBERT , MARZYS, DANIEL
IPC分类号： C25C1/00 , C25C5/00 , C25C5/02 , C25C7/00
摘要： A method and apparatus for electrolytically preparing in an electrolytic cell metal, preferably zinc, in pulverulent form from a compound of the metal, for example, zinc oxide, in an aqueous ionized solution, for example potassium hydroxide of a concentration of 100 to 800 g/l, the solution preferably containing 10 to 350 of zinc per liter. The cathode at the bottom of the electrolytic cell comprises a layer of the same pulverulent metal, for example zinc, into which a grid cathode current input is introduced, the cathode current applied being sufficient to prevent the formation of metal in continuous form, preferably between 8 and 18 A/dm2. The anode is disposed in the cell above the cathode. New solution is injected about the lower periphery of the cell so as to set the solution and pulverulent metal is turbulent suspension. The suspension is drawn off by a pump and allowed to settle in a settling tank the pulverulent metal being removed by a conveyor screw, the solution spilling over into a storage tank and then being pumped back to the cell and reintroduced by the injectors. A plurality of cells may be arranged in a stack or columns, operating sequentially, and utilizing the same settling tank, associated pumps, and other auxiliary equipment.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式