利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

14 条记录 (耗时 0.01 秒)

    Selective solvent extraction of sulfate impurities from phosphoric acid
    1.
    发明授权
    Selective solvent extraction of sulfate impurities from phosphoric acid 失效
    从磷酸中选择性地提取硫酸盐杂质

    公开(公告)号：US3911087A

    公开(公告)日：1975-10-07

    申请号：US40793573

    申请日：1973-10-19

    申请人： FREEPORT MINERALS CO

    发明人： VILLAREJOS MIGUEL O ,  WIEWIOROWSKI TADEUSZ K ,  THORNSBERRY JR WILLIS L

    IPC分类号： C01B25/237 ,  C01B25/16

    CPC分类号： C01B25/2377

    摘要： While it is known that substantial amounts of the sulfate and fluorine impurities present in phosphoric acid can be concurrently extracted from the acid by treating it with a water immiscible amine enriched extractant, it has now been found that most of the sulfate can be extracted without concurrently extracting large amounts of the fluorine in the acid if a certain combination of treatment conditions is observed. Thus selective sulfate extraction surprisingly occurs when 35 to 44% P2O5 acid is treated with a water immiscible extractant containing about 1 to 3 moles of a tertiary organic amine per mole of sulfate in the acid. With the present invention, virtually all the sulfate present in the acid can be extracted while concurrently extracting only 25% of the fluorine. Selective sulfate extraction is an advantage whenever it is desirable to separately recover the fluorine in the acid in the conventional fluorine recovery systems of phosphoric acid manufacturing processes.

    摘要翻译： 虽然已经知道，通过用与水不混溶的富含胺的萃取剂进行处理，可以从酸中同时提取存在于磷酸中的大量硫酸盐和氟杂质，但是现在已经发现，大部分硫酸盐可以不同时提取 如果观察到某种治疗条件的组合，则在酸中提取大量的氟。 因此，当酸中每摩尔硫酸盐含有约1至3摩尔叔有机胺的水不混溶萃取剂处理35至44％的P 2 O 5酸时，出人意料地发生选择性硫酸盐萃取。 利用本发明，几乎可以提取存在于酸中的所有硫酸盐，同时仅提取25％的氟。 只要在常规的磷酸制备方法的氟回收系统中分离回收酸中的氟，则选择性硫酸盐提取是有利的。

    Closed cell clay foam and process for preparing same
    3.
    发明授权
    Closed cell clay foam and process for preparing same 失效
    封闭细胞粘土泡沫及其制备方法

    公开(公告)号：US3737332A

    公开(公告)日：1973-06-05

    申请号：US3737332D

    申请日：1971-06-25

    申请人： FREEPORT MINERALS CO

    发明人： SENNETT P ,  OLIVIER J ,  ROSS S

    IPC分类号： C04B38/10 ,  C04B31/20

    CPC分类号： C04B38/10 ,  C04B33/00

    摘要： A CLAY FOAM CHARACTERIZED BY A CLOSED CELL STRUCTURE AND THE ABILITY, IN ITS CALCINED STATE, TO FLOAT IN WATER IS DESCRIBED. THE GAS BUBBLES OF THE FOAM ARE SUBSTANTIALLY COMPLETELY ENCAPSULATED BY WALLS FORMED FROM CLAY PARTICLES. THE FOAM IS PREPARED BY GENERATING A FOAMING GAS IN AN AQUEOUS DISPERSION OF CLAY PARTICLES TO WHICH HAS BEEN ADDED A MINOR AMOUNT OF A FATTY AMINE AS A FOAMING AGENT. A VARIETY OF INORGANIC FILLER MATERIALS CAN BE INCORPORATED INTO THE FOAM IN ORDER TO ALTER OR IMPART NEW PROPERTIES TO THE FOAM. THE FOAM CAN BE CALCINED TO FURTHER ALTER ITS PROPERTIES. THE FOAM HAS MANY USES INCLUDING USE AS A REFRACTORY BRICK.

    Selective recovery of cobalt from an ammoniacal carbonate solution containing cobalt and nickel
    4.
    发明授权
    Selective recovery of cobalt from an ammoniacal carbonate solution containing cobalt and nickel 失效
    从含有钴和镍的氨基碳酸盐溶液中选择性地回收钴

    公开(公告)号：US3720750A

    公开(公告)日：1973-03-13

    申请号：US3720750D

    申请日：1971-10-19

    申请人： FREEPORT MINERALS CO

    发明人： WIEWIOROWSKI T ,  MILLER D

    IPC分类号： C01G51/00 ,  C01G53/00 ,  C01G53/11

    CPC分类号： C22B23/0492

    摘要： WHEN COBALT IS PRECIPITATED FROM AMMONIACAL CARBONATE SOLUTIONS CONTAINING BOTH COBALT AND NICKEL BY ADDITION OF A SULFIDING AGENT TO THE SOLUTION, THE AMOUNT OF OF NICKEL CO-PRECIPITATED WITH THE COBALT IS SUBSTANTIALLY REDUCED IF, AFTER ADDITION OF THE SULFIDING AGENT, THE SOLUTION IS TREATED WITH AN OXYGEN-CONTAINING GAS. THIS PRODUCES A TWO-FOLD DESIRABLE RESULT: A PRECIPITATE ENRICHED IN COBALT AND A MOTHER LIQUOR ENRICHED IN NICKEL. THE PRECIPITATE IS FURTHER ENRICHED IN COBALT BY FIRST THICKENING THE SLURRY CONTAINING THE PRECIPITATE AND THEN TREATING THE THICKENED SLURRY WITH AN OXYGEN-CONTAINING GAS. THIS TREATMENT SOLUBILIZES SOME OF THE NICKEL SULFIDE IN THE LIQUID PHASE OF THE SLURRY SERVING TO SIMULTANEOUSLY INCREASE THE COBALT CONTENT OF THE PRECIPITATE AND THE NICKEL CONTENT OF THE MOTHER LIQUOR.

    Recovery of cobalt values from the leached ore tailings of a conventional ammoniacal leaching process
    6.
    发明授权
    Recovery of cobalt values from the leached ore tailings of a conventional ammoniacal leaching process 失效
    从传统的硫酸浸出过程的浸出的矿石尾矿中恢复钴碱值

    公开(公告)号：US3848054A

    公开(公告)日：1974-11-12

    申请号：US25908272

    申请日：1972-06-02

    申请人： FREEPORT MINERALS CO

    发明人： WIEWIOROWSKI T

    IPC分类号： C01G1/12 ,  C01G51/00 ,  C01G53/00 ,  C22B3/00 ,  C22B7/00 ,  C22B23/00

    CPC分类号： C22B23/0446

    摘要： 1. A METHOD FOR RECOVERING COBALT VALUES PRESENT IN THE LEACHED ORE TAILINGS OF AN AMMONIACAL LEACHING PROCESS WHICH COMPRISES: (A) TREATING A SLURRY CONTAINING A SOLID PHASE COMPRISING THE SOLIDS FRACTION OF SAID LEACHED ORE TAILINGS CONTAINING ABOUT 0.02 TO 0.15 PERCENT BY WEIGHT COBLAT AND ABOUT 0.1 TO 0.6 PERCENT BY WEIGHT AND A LIQUID PHASE COMPRISING AN AQUEOUS AMMONIACAL SOLUTION HAVING A PH ABOVE 7, WITH SULFITE IONS IN AN AMOUNT SUFFICIENT TO SOLUBILIZED COBALT VALUES PRESENT IN SAID SOLID PHASE INTO SAID AMMONIACAL SOLUTION; (B) BLENDING THE TREATED SLURRY PREPARED IN STEP 8A) WITH ADDITIONAL AQUEOUS AMMONIACAL SOLUTION HAVING A PH ABOVE 7 TO THEREBY DILUTE SAID SLURRY; (C) SEPARATING THE DILUTED SLURRY PREPARED IN STEP (B) INTO A FIRST STREAM DEPLETED IN SOLIDS AND A SECOND STREAM ENRICHED IN SOLIDS; (D) TREATING SAID FIRST STREAM PREPARED IN STEP (C) WITH AN OXYGEN-CONTAINING GAS IN AN AMOUNT SUFFICIENT TO DESTROY RESIDUAL SULFITE IONS PRESENT IN SAID FIRST STREAM; (E) SEPARATING THE SOLID PHASE OF THE FIRST STREAM PREPARED IN STEP (C) FROM THE LIQUID PHASE OF SAID FIRST STREAM; (F) TREATING THE SOLIDS DEPLETED, GAS-TREATED LIQUID PHASE FROM STEP (E) WITH A SULFIDING AGENT IN AN AMOUNT SUFFICIENT TO PRECIPITATE SOLUBLIZED COBALT AND NICKEL VALUES CONTAINED IN SAID LIQUID PHASE AS A MIXED PRECIPITATE OF COBALT SULFIDE AND NICKEL SULFIDE HAVING A NICKEL TO COBALT WEIGHT RATIO OF ABOUT 0.5 TO 2;

    (G) SEPARATING THE SLURRY OF SAID LIQUID PHASE AND COBALT SULFIDE-NICKEL SULFIDE PRECIPITATE PREPARED IN STEP (F), AFTER THE PRECIPITATION OF STEP (F) IS COMPLETED, INTO A FIRST STREAM DEPLETED IN SOLIDS AND A SECOND STREAM ENRICHED IS SOLIDS, AND WITHDRAWING SAID SECOND STREAM CONTAINING THE DESIRED COBALT VALUES AS COBALT SULFIDE FROM THE PROCESS; (H) TREATING THE SOLIDS DEPLETED FIRST STREAM PREPARED IN STEP (G) WITH AN OXYGEN-CONTAINING GAS IN AN AMOUNT SUFFICIENT TO DESTROY RESIDUAL SULFIDE IONS PRESENT IN SAID FIRST STREAM; (I) ADDING MAPE-UP WATER TO SAID FIRST STREAM PREPARED IN STEP (G), WHEN REQUIRED AND MIXING SAID FIRST STREAM WITH THE SECOND STREAM PREPARED IN STEP (C) TO THEREBY DILUTE SAID SECOND STREAM; (J) SEPARATING THE DILUTED STREAM PREPARED IN STEP (I) INTO A FIRST STREAM DEPLETED IN SOLIDS AND A SECOND STREAM ENRICHED IN SOLIDS, SAID SECOND STREAM CONSTITUTING THE TAILINGS OF SAID METHOD; AND (K) RETURNING THE FIRST STREAM PRODUCED IN STEP (J) FOR BLENDING WITH THE TREATED SLURRY PREPARED IN STEP (A), SAID RETURNED STREAM SERVING AS SAID ADDITIONAL AQUEOUS AMMONIACAL SOLUTION OF STEP (B).

    Adhesive
    7.
    发明授权
    Adhesive 失效
    胶粘剂

    公开(公告)号：US3804653A

    公开(公告)日：1974-04-16

    申请号：US1424470

    申请日：1970-02-25

    申请人： FREEPORT MINERALS CO

    发明人： TURNER K ,  MORRIS H ,  DREXEL R

    IPC分类号： C09J103/00 ,  C09J189/00 ,  C08B25/02

    CPC分类号： C09J103/00 ,  C09J189/00

    摘要： The disclosure relates to a process for preparing an adhesive, a novel adhesive, a novel polymeric material and a process for preparing extremely stable emulsions. The process of the invention comprises subjecting an aqueous mixture of starch or protein, or at least two insoluble substances, and grinding media to an agitation in the presence of a pigment, if desired, and then removing the grinding media therefrom. The treated starch or protein may be further reacted with a polymerizable monomer or preformed polymer to form the novel polymeric material. A superior adhesive, which finds particular application in coating base materials, as paper, is obtained. Stable emulsions formed are particularly useful in pharmaceutical and food applications.

    摘要翻译： 本公开涉及制备粘合剂，新型粘合剂，新型聚合物材料和制备极稳定乳液的方法。 本发明的方法包括如果需要，将淀粉或蛋白质或至少两种不溶物质的水性混合物和研磨介质在颜料存在下进行搅拌，然后从中除去研磨介质。 经处理的淀粉或蛋白质可以进一步与可聚合单体或预成型聚合物反应以形成新的聚合物材料。 获得了一种优异的粘合剂，其特别适用于涂布基材，作为纸。 形成的稳定乳液特别适用于制药和食品应用。