Process for recovering cesium from cesium ore
    1.
    发明授权
    Process for recovering cesium from cesium ore 失效
    从铯矿中回收铯的工艺

    公开(公告)号:US4597955A

    公开(公告)日:1986-07-01

    申请号:US729463

    申请日:1985-05-01

    申请人: Peter G. Mein

    发明人: Peter G. Mein

    IPC分类号: C01D17/00 C01G45/00 C01G45/12

    摘要: Cesium is recovered from a cesium-bearing mineral such as pollucite by roasting with an alkaline flux to convert the cesium to a soluble salt, extracting the cesium salt with water, and separating the cesium solution from the residual solids. Water-soluble permanganate is then added to the cesium solution to selectively precipitate cesium permanganate, giving other soluble metal compounds in solution. Cesium permanganate of high purity is recovered by separation from the residual solution. The cesium permanganate can be converted to other cesium compounds.

    摘要翻译: 通过用碱性助熔剂焙烧将铯从含铯的矿物如pol石中回收,将铯转化为可溶性盐,用水萃取铯盐,并将铯溶液与残余固体分离。 然后将水溶性高锰酸盐加入到铯溶液中以选择性沉淀高锰酸铯,在溶液中给出其它可溶性金属化合物。 从残余溶液中分离回收高纯度的高锰酸铯。 高锰酸铯可以转化为其他铯化合物。

    Process for recovering cesium from cesium alum
    2.
    发明授权
    Process for recovering cesium from cesium alum 失效
    从铯明矾中回收铯的工艺

    公开(公告)号:US4469670A

    公开(公告)日:1984-09-04

    申请号:US512925

    申请日:1983-07-12

    申请人: Peter G. Mein

    发明人: Peter G. Mein

    摘要: Cesium is recovered from cesium alum, CsAl(SO.sub.4).sub.2, by an aqueous conversion and precipitation reaction using a critical stoichiometric excess of a water-soluble permanganate to form solid cesium permanganate (CsMnO.sub.4) free from cesium alum. The other metal salts remain in solution, providing the final pH does not cause hydroxides of aluminum or iron to form. The precipitate is separated from the residual solution to obtain CsMnO.sub.4 of high purity.

    摘要翻译: 通过使用临界化学计量过量的水溶性高锰酸盐进行含水转化和沉淀反应从铯明矾CsAl(SO 4)2中回收铯,以形成不含铯明矾的固体铯高锰酸盐(CsMnO 4)。 其他金属盐保留在溶液中,只要最终的pH不会导致形成铝或铁的氢氧化物。 从残余溶液中分离出沉淀物,得到高纯度的CsMnO4。

    Rare-earth-manganese oxidation catalysts and process of producing same
    3.
    发明授权
    Rare-earth-manganese oxidation catalysts and process of producing same 失效
    稀土锰氧化催化剂及其制备方法

    公开(公告)号:US4290923A

    公开(公告)日:1981-09-22

    申请号:US118553

    申请日:1980-02-04

    IPC分类号: B01J23/34 B01J23/10

    CPC分类号: B01J23/34

    摘要: Alkali metal delta manganese dioxide hydrate, which is obtained as a by-product in the industrial oxidation of organics by KMnO.sub.4 is subjected to ion exchange reaction with rare earth ions of the ceria subgroup (viz. cerium, lanthanum, etc.). By employing favorable temperature and pH conditions, a reaction product can be produced containing as little as 0.03 moles of alkalii metal per mole of manganese, and up to one mole of ceria rare earth per six moles of manganese. The separated product is prepared for catalytic use in the form of dried porous pellets. The resulting oxidation catalyst has high efficiency, long life, and optimum activity at reasonable temperatures. The catalyst can be used advantageously for applications such as the oxidation and deodorization of exhaust gases from paint drying ovens.

    摘要翻译: 通过KMnO4在有机物的工业氧化中作为副产物获得的碱金属δ二氧化锰水合物与二氧化铈亚类(即铈,镧等)的稀土离子进行离子交换反应。 通过使用有利的温度和pH条件,可以生产每摩尔锰含有少至0.03摩尔碱金属的反应产物,以及每六摩尔锰至多1摩尔的二氧化铈稀土。 制备分离的产物以干燥的多孔颗粒的形式催化使用。 所得氧化催化剂在合理的温度下具有高效率,长寿命和最佳活性。 催化剂可有利地用于诸如来自油漆干燥炉的废气的氧化和除臭等应用。

    Process for recovering cesium from cesium alum
    4.
    再颁专利
    Process for recovering cesium from cesium alum 失效
    从铯明矾中回收铯的工艺

    公开(公告)号:USRE32556E

    公开(公告)日:1987-12-08

    申请号:US889904

    申请日:1986-07-28

    申请人: Peter G. Mein

    发明人: Peter G. Mein

    IPC分类号: C01D17/00 C01G45/12

    摘要: Cesium is recovered from cesium alum, CsAl(SO.sub.4).sub.2, by a two-reaction sequence in which the cesium alum is first dissolved in an aqueous hydroxide solution to form cesium alum hydroxide, CsAl(OH).sub.3, and potassium sulfate, K.sub.2 SO.sub.4. Part of the K.sub.2 SO.sub.4 precipitates and is separated from the supernatant solution. In the second reaction, a water-soluble permanganate, such as potassium permanganate, KMnO.sub.4, is added to the supernatant. This reaction forms a precipitate of cesium permanganate, CsMnO.sub.4. This precipitate may be separated from the residual solution to obtain cesium permanganate of high purity, which can be sold as a product or converted into other cesium compounds.

    Method of removing potassium hydroxide from crystallized potassium
ferrate (VI)
    5.
    发明授权
    Method of removing potassium hydroxide from crystallized potassium ferrate (VI) 失效
    从结晶的高铁酸钾(VI)中除去氢氧化钾的方法

    公开(公告)号:US4304760A

    公开(公告)日:1981-12-08

    申请号:US194058

    申请日:1980-10-06

    IPC分类号: C01G49/00 C01D13/00

    CPC分类号: C01G49/0081

    摘要: Potassium ferrate (VI), K.sub.2 FeO.sub.4, which has been crystallized from a concentrated aqueous solution of KOH is washed with an aqueous solution of a potassium salt of an inorganic acid to remove the residual KOH. The wash solution is at an alkaline pH and contains a high concentration of the potassium salt.

    摘要翻译: 从KOH浓缩水溶液中结晶出的高铁酸钾(VI)K2FeO4用无机酸的钾盐水溶液洗涤以除去残留的KOH。 洗涤溶液处于碱性pH并含有高浓度的钾盐。

    Heavy metal-manganese oxidation catalysts and process of producing same
    6.
    发明授权
    Heavy metal-manganese oxidation catalysts and process of producing same 失效
    重金属锰氧化催化剂及其制备方法

    公开(公告)号:US4299735A

    公开(公告)日:1981-11-10

    申请号:US137920

    申请日:1980-04-07

    摘要: Alkali metal delta manganese dioxide hydrate, which is obtained as a by-product in the industrial oxidation of organics by KMnO.sub.4 is subjected to ion exchange reaction with heavy metal ions (copper, iron, silver, etc.). The reaction is carried out on the acid side of the pH at which a hydroxide precipitate of the heavy metal will not form, and continued until the reaction product contains less than 0.5 moles of bound alkali metal per mole of manganese. The product is recovered and prepared for catalytic use in the form of dried porous pellets. The resulting oxidation catalysts have high efficiency, long life, and optimum activity at reasonable temperatures. These catalysts can be used for applications such as the oxidation and deodorization of exhaust gases from paint drying ovens.

    摘要翻译: 通过KMnO 4在有机物的工业氧化中作为副产物获得的碱金属δ二氧化锰水合物与重金属离子(铜,铁,银等)进行离子交换反应。 该反应在不会形成重金属的氢氧化物沉淀物的pH的酸性侧进行,并持续到反应产物含有每摩尔锰少于0.5摩尔的结合的碱金属。 将产物回收并制备成以干燥的多孔颗粒的形式催化使用。 所得的氧化催化剂在合理的温度下具有高效率,长寿命和最佳活性。 这些催化剂可用于诸如来自油漆干燥炉的废气的氧化和除臭等应用。

    Process for recovery of potassium from manganate plant wastes
    7.
    发明授权
    Process for recovery of potassium from manganate plant wastes 失效
    从锰酸盐植物废物中回收钾的工艺

    公开(公告)号:US4085191A

    公开(公告)日:1978-04-18

    申请号:US791005

    申请日:1977-04-26

    IPC分类号: C01D1/20 C01G45/12 C01D1/04

    CPC分类号: C01G45/1214

    摘要: Potassium is recovered as a dilute KOH solution from residue solids resulting from conversion of manganese ore to K.sub.2 MnO.sub.4 by reacting the solids with a Ca(OH).sub.2 under specified conditions. The resulting KOH solution can be returned to the K.sub.2 MnO.sub.4 plant and the solids of reduced potassium content are suitable for disposal in a landfill.

    摘要翻译: 从指定条件下通过使固体与Ca(OH)2反应使锰矿石转化成K2MnO4的残留固体,将钾作为稀释的KOH溶液回收。 所得到的KOH溶液可以返回到K2MnO4装置,并且减少的钾含量的固体适合在垃圾填埋场中处理。

    Process for recovering cesium from cesium alum
    8.
    发明授权
    Process for recovering cesium from cesium alum 失效
    从铯明矾中回收铯的工艺

    公开(公告)号:US4466950A

    公开(公告)日:1984-08-21

    申请号:US512926

    申请日:1983-07-12

    申请人: Peter G. Mein

    发明人: Peter G. Mein

    IPC分类号: C01D17/00 C01G45/00 C01G45/12

    摘要: Cesium is recovered from cesium alum, CsAl(SO.sub.4).sub.2, by a two-reaction sequence in which the cesium alum is first dissolved in an aqueous hydroxide solution to form cesium alum hydroxide, CsAl(OH).sub.3, and potassium sulfate, K.sub.2 SO.sub.4. Part of the K.sub.2 SO.sub.4 precipitates and is separated from the supernatant solution. In the second reaction, a water-soluble permanganate, such as potassium permanganate, KMnO.sub.4, is added to the supernatant. This reaction forms a precipitate of cesium permanganate, CsMnO.sub.4. This precipitate may be separated from the residual solution to obtain cesium permanganate of high purity, which can be sold as a product or converted into other cesium compounds.

    摘要翻译: 通过首先将铯明矾溶解在氢氧化铯水溶液中以形成铯氢氧化铯,CsAl(OH)3和硫酸钾K 2 SO 4的双反应顺序从铯明矾CsAl(SO 4)2中回收铯。 部分K 2 SO 4沉淀并与上清液分离。 在第二反应中,向上清液中加入水溶性高锰酸盐,例如高锰酸钾KMnO4。 该反应形成高锰酸铯CsMnO 4的沉淀物。 该沉淀物可以与残余溶液分离,得到高纯度的高锰酸铯,可以作为产品出售或转化为其它铯化合物。

    Process for recovering cesium from cesium ore
    9.
    发明授权
    Process for recovering cesium from cesium ore 失效
    从铯矿中回收铯的工艺

    公开(公告)号:US4447406A

    公开(公告)日:1984-05-08

    申请号:US512924

    申请日:1983-07-12

    申请人: Peter G. Mein

    发明人: Peter G. Mein

    摘要: Cesium is recovered from a cesium-bearing mineral such as pollucite by extraction with hydrochloric acid to obtain an extract of cesium chloride and other alkali metal and polyvalent metal chlorides. The iron and aluminum chlorides can be precipitated as the hydroxides and separated from the solution of the alkali metal chlorides to which is added potassium permanganate or other water-soluble permanganate to selectively precipitate cesium permanganate. The cesium precipitate is then separated from the residual solution containing the metal chlorides. The cesium permanganate, which is in a very pure form, can be converted to other cesium compounds by reaction with a reducing agent to obtain cesium carbonate and cesium delta manganese dioxide.

    摘要翻译: 通过用盐酸萃取从含铯的矿物如pol石中回收铯,得到氯化铯和其它碱金属和多价金属氯化物的提取物。 铁和铝的氯化物可以作为氢氧化物沉淀,并与加入高锰酸钾或其它水溶性高锰酸盐的碱金属氯化物溶液分离,以选择性沉淀高锰酸铯。 然后从含有金属氯化物的残余溶液中分离出铯沉淀物。 通过与还原剂反应,可以将非常纯的形式的高锰酸铯转化为其它铯化合物,得到碳酸铯和铯δ二氧化锰。