中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

216 records (took 0.021 seconds)

    Modified polysaccharides for depressing floatable gangue minerals
    82.
    发明申请
    Modified polysaccharides for depressing floatable gangue minerals 审中-公开
    用于抑制可浮动脉石矿物的改性多糖

    公开(公告)号：US20070261998A1

    公开(公告)日：2007-11-15

    申请号：US11799521

    申请日：2007-05-02

    Applicant: Philip Crane

    Inventor： Philip Crane

    IPC: B03D1/14

    CPC classification number: B03D1/016 ,  B03D2201/06 ,  B03D2203/025 ,  B03D2203/04 ,  C08B37/0087 ,  C08L5/00

    Abstract: A class of non-sulfide, silicate gangue material depressants based on naturally-occurring galactomannans, having a galactose-to-mannose ratio of less than 1:2.1, exemplified by modified products of the seed gums: casia tora gum, sesbania gum, kalonji gum, Ceratonia siliqua gum and/or Tamarindus indica gum, and methods of making and using them.

    Abstract translation: 一类基于天然存在的半乳甘露聚糖的非硫化物，硅酸盐脉石材料抑制剂，具有小于1：2.1的半乳糖与甘露糖的比例，例如种子牙龈的改良产品：casia tora gum，sesbania gum，kalonji 口香糖，西洋蓍胶和/或罗望子a胶，以及制造和使用它们的方法。

    Selective flotation agent and flotation method
    83.
    发明授权
    Selective flotation agent and flotation method 失效
    选择性浮选剂和浮选法

    公开(公告)号：US07165680B2

    公开(公告)日：2007-01-23

    申请号：US10498679

    申请日：2002-12-12

    Applicant: Vladimir Rajic ,  Zoran Petkovic

    Inventor： Vladimir Rajic ,  Zoran Petkovic

    IPC: B03D1/10 ,  B03D1/01 ,  B03D1/012

    CPC classification number: C22B15/0008 ,  B03D1/002 ,  B03D1/01 ,  B03D1/011 ,  B03D1/012 ,  B03D1/014 ,  B03D2201/02 ,  B03D2201/06 ,  B03D2203/02 ,  B03D2203/04

    Abstract: A new reagent for the application in the preparation of mineral raw materials, mainly sulphide and oxyde mono- and polymetallic ores of non-ferrous metals, which are used as a corrosion inhibitor of the equipment and grinding bodies and as a selective collector of the wanted metal, is described. The new reagent is a composition of water, mercaptobenzothiazole salts and its derivatives in the quantity of 0–50%, by weight, sodium metasilicates in the quantity of 0.1–10%, by weight, amines in the quantity of 1–5%, by weight, and dithiophosphates in the quantity of 0.5–20%, by weight. Also, it discloses the methods for the application of that new reagent for the preparations of the copper, zinc and lead concentrates from the sulphide and oxyde ores, for the purpose of further metallurgic processing. In those methods the new reagent is added fully, or in part, in the phase of wet grinding, and in part, as needed, in the flotation phase, in the quantity of 20–300 g of the reagent per ton of ore. The application of this new reagent eliminates the need for the use of cyanide and other poisonous depressants of metals, as well as other collectors.

    Abstract translation: 一种用于制备矿物原料的新试剂，主要是用于有色金属的硫化物和氧化物单金属和多金属矿石，用作设备和研磨体的腐蚀抑制剂，并用作需要的选择性收集剂 金属，被描述。 新试剂是水，巯基苯并噻唑盐及其衍生物的组合物，其量为0-50重量％，偏硅酸钠为0.1-10重量％，胺为1-5重量％ 和二硫代磷酸盐，其量为0.5-20重量％。 此外，它公开了用于从硫化物和氧化物矿石制备铜，锌和铅浓缩物的新试剂的方法，用于进一步的冶金加工。 在这些方法中，新试剂全部或部分加入湿磨阶段，部分地根据需要，在浮选阶段，每吨矿石的试剂量为20-300克。 这种新试剂的应用消除了使用氰化物和其他有毒金属抑制剂以及其他收集剂的需要。

    Pyrite depressant useful in floation separation
    87.
    发明授权
    Pyrite depressant useful in floation separation 失效
    用于浮选分离的黄铁矿抑制剂

    公开(公告)号：US5855771A

    公开(公告)日：1999-01-05

    申请号：US877320

    申请日：1997-06-17

    Applicant: Douglas W. Fuerstenau ,  Guy H. Harris

    Inventor： Douglas W. Fuerstenau ,  Guy H. Harris

    IPC: B03D1/014 ,  B03D1/012 ,  B03D1/06

    CPC classification number: B03D1/014 ,  B03D2201/06 ,  B03D2203/02 ,  B03D2203/08

    Abstract: The present invention relates to a process for separating pyrite from sulfide ores and coal during flotation separation which comprises the depressing of pyrite with from about 0.05 to 0.75 kilograms per ton of concentrate solids, using a pyrite depressant compounds selected from the group consisting ofR1--S (CH.sub.2').sub.n PO (OH).sub.2 (I)wheren is between 2 and 4, andR1 is selected from a group consisting of hydrogen (H) and amidine, and ##STR1## where Ro is a lower alkyl having carbon atoms in a range of 3 to 8 with 3 to 6 being preferred and a final pH in a range of 4 to 9 depending on the ore being processed, and therafter recovering the flotation concentrate thus obtained. As to group (I) compounds, 2-S thironium-ethane phosphonate (TEPA) as a pyrite depressant is surprisingly effective in pyrite removal, being substantially independent of the pH values of the treated ore or coal, compatible with conventional collector reagents such as xanthates in the case of copper sulfide bearing ores as well as being substantially unobtrusive in not depressing other useful ore sulfides, including but limited to chalcopyritoe, bornite, chalcosite, etc. Group (II) are more pH sensitive.

    Abstract translation: 本发明涉及一种在浮选分离过程中从硫化矿石和煤中分离黄铁矿的方法，其中包括使用选自以下的硫铁矿抑制剂化合物，其选自约0.05至0.75千克/吨浓缩物固体的黄铁矿， S（CH 2'）n PO（OH）2（I）其中n在2和4之间，并且R 1选自氢（H）和脒，和其中R a是低级烷基 碳原子为3〜8的范围，3〜6为优选，最终的pH值为4〜9，取决于所加工的矿石，回收后得到的浮选精矿。 对于组（I）化合物，作为黄铁矿抑制剂的2-S硫代 - 乙烷膦酸盐（TEPA）在黄铁矿去除方面令人惊奇地有效，其基本上与经处理的矿石或煤的pH值无关，与常规的收集剂如 在含有硫化铜的矿石的情况下，黄原酸盐以及在不抑制其它有用的硫化物的情况下基本上不引人注意，包括但不限于黄铜矿，斑铜矿，硫酸钙等。组（II）对pH敏感。

    Flotation method for non-ferrous metal variable ores
    88.
    发明授权
    Flotation method for non-ferrous metal variable ores 失效
    有色金属可变矿石浮选方法

    公开(公告)号：US5702591A

    公开(公告)日：1997-12-30

    申请号：US596039

    申请日：1996-02-06

    Applicant: Hideyuki Okamoto ,  Hiroichi Miyashita ,  Ryoichi Nakayama

    Inventor： Hideyuki Okamoto ,  Hiroichi Miyashita ,  Ryoichi Nakayama

    IPC: B03D1/012 ,  B03D1/02 ,  B03D1/06 ,  B03D1/002

    CPC classification number: B03D1/06 ,  B03D1/002 ,  B03D1/02 ,  B03D2201/06

    Abstract: The present invention concerns a method of separating variable ores containing copper, lead, zinc and the like as the refining material for non-ferrous metals and gangue minerals such as pyrite, quartz, feld spar and the like from dug out ores and, particularly, it relates to a flotation method. For obtaining non-ferrous metal valuable ores as concentrates from ores by a flotation method, flotation is conducted by using gaseous sulfurous acid or aqueous sulfurous acid as a depressant for controlling the floatability of pyrite. The flotation method comprises measuring the redox potential of an ore solution before and after the addition of gaseous sulfurous acid or aqueous sulfurous acid and determining an optimum addition amount by utilizing a proportional relationship present between the difference of the potential and the valuable quality enhancing rate. According to the method, it is possible to judge the effect of depressing pyrite, that is, the effect of sulfurous acid for enhancing the valuable quality without complicate analysis or test and, further, when the method is applied to automatic control, an utmost economical merit can be obtained by quality control of concentrates or saving of wasteful consumption of the reagent.

    Abstract translation: 本发明涉及一种分离含有铜，铅，锌等的可变矿石作为有色金属和脉石矿物如黄铁矿，石英，eld石等的精炼材料的方法，其特征在于， 它涉及一种浮选方法。 为了通过浮选法从矿石中获得有色金属矿石作为矿石，通过使用气态亚硫酸或亚硫酸钠作为控制黄铁矿浮选性的抑制剂进行浮选。 浮选方法包括在添加气态亚硫酸或亚硫酸气体之前和之后测量矿石溶液的氧化还原电位，并通过利用潜在的差异和有价值的质量提高率之间存在的比例关系确定最佳添加量。 根据该方法，可以判断黄铁矿的效果，即亚硫酸对提高有价值质量的效果，无需复杂的分析或试验，此外，当该方法应用于自动控制时，是最经济的 可以通过浓缩物的质量控制或节省浪费的试剂来获得优点。

    Method of depressing non-sulfide silicate gangue minerals
    89.
    发明授权
    Method of depressing non-sulfide silicate gangue minerals 失效
    抑制非硫化物硅酸盐脉石矿物的方法

    公开(公告)号：US5531330A

    公开(公告)日：1996-07-02

    申请号：US474805

    申请日：1995-06-07

    Applicant: D. R. Nagaraj ,  Samuel S. Wang

    Inventor： D. R. Nagaraj ,  Samuel S. Wang

    IPC: B03D1/016 ,  B03D1/06

    CPC classification number: B03D1/016 ,  B03D1/01 ,  B03D1/012 ,  B03D1/014 ,  B03D2201/06 ,  B03D2203/02 ,  B03D2203/04

    Abstract: A method for the depression of non-sulfide, silicate gangue minerals is provided wherein the depressant is a polymeric material comprising recurring units of the formula: ##STR1## wherein X is the polymerization residue of an acrylamide or mixture of acrylamides, Y is an hydroxy group containing polymer unit, Z is an anionic group containing polymer unit, x represents a residual mole fraction of at least about 35%, y represents a residual mole fraction of from about 1 to 50% and z represents a residual mole fraction of from about 0 to about 50%.

    Abstract translation: 提供了一种用于抑制非硫化物，硅酸盐脉石矿物的方法，其中抑制剂是包含下式的重复单元的聚合物：其中X是丙烯酰胺或丙烯酰胺混合物的聚合残基，Y是羟基 含有基团的聚合物单元，Z是含阴离子基团的聚合物单元，x表示至少约35％的残余摩尔分数，y表示约1-50％的残余摩尔分数，z表示从约 0〜约50％。

    Phosphate rock benefication
    90.
    发明授权
    Phosphate rock benefication 失效
    磷矿石受益

    公开(公告)号：US5221466A

    公开(公告)日：1993-06-22

    申请号：US814437

    申请日：1991-12-30

    Applicant: Steven C. Garcia ,  Charles T. Staniek

    Inventor： Steven C. Garcia ,  Charles T. Staniek

    IPC: B03D1/002 ,  B03D1/02

    CPC classification number: B03D1/002 ,  B03D1/006 ,  B03D1/008 ,  B03D1/021 ,  B03D2201/007 ,  B03D2201/06 ,  B03D2203/06

    Abstract: This invention provides an improved method for the rougher flotation of phosphate ore using sodium carbonate to control the pH at about 9.6-10.5. The method facilitates improved recovery of phosphate from its ore; in addition the Bone Phosphate of Lime (BPL) of the phosphate concentrate increases, which provides further advantages in that subsequent steps are improved by virtue of receiving a feed of greater purity. There are also certain environmental advantages obtained when ammonia is replaced with sodium carbonate and the operational safety of the flotation system is enhanced when ammonia is replaced with sodium carbonate.

    Abstract translation: 本发明提供了使用碳酸钠粗调浮选磷酸盐矿石以控制pH为约9.6-10.5的改进方法。 该方法有助于从矿石中提高磷酸盐的回收率; 此外，磷酸盐浓缩物的磷酸骨磷酸盐（BPL）增加，这提供了进一步的优点，因为随后的步骤由于接收更高纯度的饲料而得到改善。 当用碳酸钠代替氨时，还有一定的环境优势，当用碳酸钠代替氨时浮选系统的操作安全性得到提高。

Patent Agency Ranking