-
公开(公告)号：US4640710A
公开(公告)日：1987-02-03
申请号：US678998
申请日：1984-12-06
CPC分类号： C01G5/00 , C22B11/04 , C22B3/44 , Y02P10/234
摘要： The invention relates to a process for recovering silver in sulfuric solutions. Its characterizing feature is that the silver solution is contacted with a quantity of zinc sulfide which is at least equal to the stoichiometric quantity and the surface area of which is at least equal to K Ag.sup.2/3 x V, K being a constant, Ag being the silver concentration in the solution expressed in kilograms per cubic meter, and V the volume of the solution in cubic meters, the surface area being expressed in square meters and the value of K being greater than or equal to approximately 10. Application to the recovery of silver in zinc plant residues.
摘要翻译： 本发明涉及一种在硫酸溶液中回收银的方法。 其特征在于，银溶液与至少等于化学计量的硫化锌的量接触，其表面积至少等于K Ag2 / 3×V，K为常数，Ag为 溶液中的银浓度以千克每立方米表示，V表示溶液体积，以立方米表示，表面积以平方米表示，K值大于或等于约10。应用于回收 的银在锌植物残渣中。
-
公开(公告)号：US4900431A
公开(公告)日：1990-02-13
申请号：US287164
申请日：1988-12-21
CPC分类号： B03D1/02 , B03D1/002 , B03D1/012 , B03D2201/007 , B03D2201/02 , B03D2203/04
摘要： The invention relates to a process for upgrading andalusite present in an ore containing it. The process involves separation from other silicates by froth flotation to obtain a concentrate whose content of andalusite is higher than 90%. It is characterized by the fact that the process comprises at least the following steps:(a) grinding as may be required and placing in pulp of the ore containing the andalusite(b) pre-conditioning the ore containing the andalusite by keeping the pH of the aqueous phase of the pulp at a value of below 3.50, the solids ratio in the pulp being higher than 30% (by weight)(c) conditioning the preconditioned ore pulp for at least 10 minutes after addition of an alkyl sulfonate;(d) dilution as may be required of the pulp to bring it to a solids ratio comprised between 15 and 30% (by weight);(e) froth flotation by bubbling calibrated air bubbles therethrough in manner known in itself, the froth flotation proper lasting at the most 10 minutes. The invention is useful in the production of refractory raw materials.
摘要翻译： 本发明涉及一种将含有矿石的矿物质升华的方法。 该方法包括通过泡沫浮选与其它硅酸盐分离，以获得其红砂石的含量高于90％的浓缩物。 其特征在于该方法至少包括以下步骤：（a）根据需要进行研磨并将其放置在含有红柱石的矿石的纸浆中（b）通过保持pH值为 纸浆的水相值低于3.50，纸浆中的固体比率高于30％（重量）（c）在加入烷基磺酸盐后调节预处理的矿浆至少10分钟; （d）可能需要的纸浆稀释使其达到15至30重量％之间的固体比; （e）以本身已知的方式通过鼓泡校准的气泡来泡沫浮选，泡沫浮选适当持续至多10分钟。 本发明可用于生产耐火材料。
-
公开(公告)号：US5178334A
公开(公告)日：1993-01-12
申请号：US845811
申请日：1992-03-09
IPC分类号： B03C1/00
CPC分类号： B03C1/00
摘要： A process to increase the content of germanium which is found in an iron hydroxide phase of an ore of the supergene type for later recovery by solvent extraction. The process comprises the steps of first crushing the ore, converting the ore to pulp, and then subjecting the pulp to a magnetic separation to give a magnetic fraction enriched in germanium. Also, the process can be used to increase the content of gallium which is found in a jarosite phase of an ore of the supergene type for later recovery by solvent extraction.
摘要翻译： 提高锗的含量的方法，该锗在超基质矿石的氢氧化铁相中发现，以便以后通过溶剂萃取回收。 该方法包括以下步骤：首先粉碎矿石，将矿石转化成纸浆，然后对纸浆进行磁分离，得到富含锗的磁性部分。 此外，该方法可以用于增加在超基质矿石的黄钾铁矾相中发现的镓的含量，以便以后通过溶剂萃取回收。
-
公开(公告)号：US4362558A
公开(公告)日：1982-12-07
申请号：US189134
申请日：1980-09-22
申请人： Andre Desnoes , Jean-Jacques Predali , Guy Ranchin
发明人： Andre Desnoes , Jean-Jacques Predali , Guy Ranchin
CPC分类号： C22B23/005 , B03B7/00
摘要： A process of upgrading garnieritic ores, oxidized nickelifer ores of lateritic origin which includes subjecting the ore to controlled attrition and classifying particles so formed according to their size, those having a dimension smaller than a predetermined value being recovered.
摘要翻译： 升级岩石矿石，红土矿石的氧化镍矿石的方法，其包括使矿石受到控制的磨耗和根据其尺寸形成的颗粒分级，回收具有小于预定值的尺寸的颗粒。
-
公开(公告)号：US4436616A
公开(公告)日：1984-03-13
申请号：US363652
申请日：1982-03-30
申请人： Philippe Dufour , Jean-Jacques Predali , Guy Ranchin, deceased , by Marc Ranchin, legal heir , by Genevieve Ranchin, legal heir
发明人： Philippe Dufour , Jean-Jacques Predali , Guy Ranchin, deceased , by Marc Ranchin, legal heir , by Genevieve Ranchin, legal heir
摘要： This invention provides a process for the beneficiation of phosphate ores having a magnesia-rich carbonate-containing gangue and a silica-containing gangue, which process comprises subjecting the phosphate ore particles to controlled attrition to remove at least a portion of the magnesia-rich carbonate-containing gangue; and subjecting the phosphate ore resulting from attrition to a plurality of flotations to remove the remaining magnesia-rich carbonate-containing gangue and the silica-containing gangue and to recover a concentrated phosphate product, the flotations including sequentially a phosphate flotation, a silica flotation and a carbonate flotation. Alternatively, the controlled attrition can be employed after the silica flotation and prior to the carbonate flotation.
摘要翻译： 本发明提供了一种用于选择具有富含氧化镁的含碳酸盐的脉石和含二氧化硅的脉石的磷酸盐矿石的方法，该方法包括使磷酸盐矿石颗粒受控磨耗以除去至少一部分富含氧化镁的碳酸盐 含g石; 将由磨耗产生的磷酸盐矿石进行多次浮选，以除去剩余的富含氧化镁的含碳酸盐的g石和含二氧化硅的脉石，并回收浓缩的磷酸盐产物，浮选依次包括磷酸盐浮选，二氧化硅浮选和 碳酸盐浮选。 或者，可以在二氧化硅浮选之后和碳酸盐浮选之前使用受控磨耗。
-
公开(公告)号：US4175790A
公开(公告)日：1979-11-27
申请号：US878458
申请日：1978-02-16
申请人： Jean-Jacques Predali
发明人： Jean-Jacques Predali
CPC分类号： C22B1/00
摘要： The invention provides a process for the preconcentration of metalliferous values contained in metal-bearing ore materials (ores and byproducts thereof) and involves subjecting the ore material to careful attrition to obtain a particle mixture of fine and coarse particles, separating the fine particles from the coarse particles by granulometry, and recovering from the thus-separated fine particles a cut having a particle size not exceeding about 50 microns and containing the metalliferous values in concentrated form.
摘要翻译： 本发明提供了一种用于预先浓缩含金矿石材料（其矿石及其副产物）中的含金值的方法，并且包括对矿石材料进行仔细的磨损以获得细颗粒和粗颗粒的颗粒混合物，将细颗粒与 粗粒子，并从这样分离的细颗粒中回收粒度不超过约50微米并含有浓度浓度的含金属值的切割。
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.01 秒)
