Preparation of granular compositions
    4.
    发明授权
    Preparation of granular compositions 失效
    颗粒组合物的制备

    公开(公告)号:US5306478A

    公开(公告)日:1994-04-26

    申请号:US28452

    申请日:1993-03-09

    CPC分类号: C01B35/121 C05D9/00

    摘要: A process for preparing granular water soluble alkali metal borate compositions by agitating a finely divided feedstock comprising a water soluble alkali metal borate and optionally boric acid, the molar ratio of alkali metal oxide to boric oxide in the feedstock being from about 0.1 to 0.5:1, optionally heating the agitated feedstock particles, contacting the agitated feedstock particles with an aqueous granulating agent to agglomerate feedstock particles, and recovering a granular borate composition having an average particle size of at least 250 micro meters. The resultant granulated product has a higher bulk density and better water dissolution rate than the feedstock particles.

    摘要翻译: 通过搅拌包含水溶性碱金属硼酸盐和任选的硼酸的细碎原料制备颗粒状水溶性碱金属硼酸盐组合物的方法,原料中碱金属氧化物与氧化硼的摩尔比为约0.1至0.5:1 ,任选地加热搅拌的原料颗粒,使搅拌的原料颗粒与水性造粒剂接触以使原料颗粒附聚,以及回收平均粒度为至少250微米的颗粒状硼酸盐组合物。 所得到的造粒产物具有比原料颗粒更高的堆积密度和更好的水溶解速率。

    Beneficiation of calcium borate minerals
    5.
    发明授权
    Beneficiation of calcium borate minerals 失效
    硼酸钙矿物的获益

    公开(公告)号:US5238119A

    公开(公告)日:1993-08-24

    申请号:US907912

    申请日:1992-07-02

    IPC分类号: B03D1/008 B03D1/012 B03D1/02

    摘要: Particles of a calcium borate mineral, such as colemanite or ulexite, are recovered from an ore by a froth flotation process using a dialkyl sulfosuccinate as collector. Suitable dialkyl sulfosuccinates include sodium or ammonium dinonyl sulfosuccinate, sodium or ammonium di-isodecyl sulfosuccinate, and sodium or ammonium dialauryl sulfosuccinate. The dialkyl sulfosuccinates may be used as aqueous solutions or as solutions in solvents consisting of water and methylated spirit, a dihydric alcohol such as ethylene glycol or hexylene glycol or a monohydric alcohol containing more than 5 carbons. Preferred collectors are the dinonyl sulfosuccinate salts, such as a compound of the formula, ##STR1## wherein X.sup.+ is a counterion.

    摘要翻译: 使用二烷基磺基琥珀酸盐作为收集器,通过泡沫浮选方法从矿石中回收硼酸钙矿物的颗粒,例如钙质钙石或白云石。 合适的二烷基磺基琥珀酸二烷基酯包括二壬基磺基琥珀酸钠或铵,二异癸基磺基琥珀酸钠或铵,以及二月桂基磺基琥珀酸钠或铵。 二烷基磺基琥珀酸盐可以作为水溶液或作为在由水和甲基化精神,二元醇如乙二醇或己二醇或含有多于5个碳的一元醇组成的溶剂中的溶液使用。 优选的收集剂是二壬基磺基琥珀酸盐,例如下式的化合物,其中X +是抗衡离子。

    Process of extracting a metal value
    6.
    发明授权
    Process of extracting a metal value 失效
    提取金属价值的过程

    公开(公告)号:US4455234A

    公开(公告)日:1984-06-19

    申请号:US427786

    申请日:1982-09-29

    摘要: To extract a metal value, particularly aluminium, from an aqueous feed stream containing the value to be extracted is treated in a recovery unit from which it passes to a contactor where it is contacted with a solvent stream including a partially water soluble extractant for the value and an organic diluent. The delivery from the contactor is separated into an organic phase, an aqueous raffinate and a dispersed intermediate phase. The organic phase is stripped of the value and recycled to the solvent stream. The raffinate as recycled by being added to the feed stream, and the intermediate phase is treated for recovery of extractant.

    摘要翻译: 从含有待提取值的含水进料流中提取金属值,特别是铝,在回收单元中进行处理,从该回收单元中将其转移到与包含部分水溶性萃取剂的溶剂流接触的接触器中, 和有机稀释剂。 从接触器的输送被分离成有机相,含水萃余液和分散的中间相。 将有机相汽提,并再循环至溶剂流。 通过添加到进料流中再循环的萃余液和中间相被处理以回收萃取剂。