Metal recovery
    1.
    发明授权
    Metal recovery 失效
    金属回收

    公开(公告)号:US4898827A

    公开(公告)日:1990-02-06

    申请号:US882763

    申请日:1986-07-03

    IPC分类号: C02F1/28 C12N1/00 C22B3/18

    摘要: A relatively solid, stable biomass reaction product is provided produced from microorganisms having metal uptake properties when contacted by an aqueous solution containing metal cations. The biomass reaction product is produced by treating cells thereof with a caustic solution, whereby the biomass reaction product after drying is characterized in the particulate state of having substantially enhanced uptake of metal cations from aqueous solutions as compared to the metal uptake property of the microorganism before treatment. The biomass reaction product in the particulate state is preferably immobilized in an insoluble binder.

    摘要翻译: 当由含有金属阳离子的水溶液接触时,由具有金属吸收性的微生物提供相对固体,稳定的生物反应产物。 生物质反应产物通过用苛性碱溶液处理其细胞来生产,其中干燥后的生物反应产物的特征在于,与微生物的金属吸收性能相比,从水溶液中吸收金属阳离子的效果明显增强。 治疗。 颗粒状态的生物质反应产物优选固定在不溶性粘合剂中。

    Metal recovery
    2.
    发明授权
    Metal recovery 失效
    金属回收

    公开(公告)号:US4992179A

    公开(公告)日:1991-02-12

    申请号:US439545

    申请日:1989-11-20

    IPC分类号: C02F1/28 C12N1/00 C22B3/18

    摘要: A relatively solid, stable biomass reaction product is provided produced from microorganisms having metal uptake properties when contacted by an aqueous solution containing metal cations. The biomass reaction product is produced by treating cells thereof with a caustic solution, whereby the biomass reaction product after drying is characterized in the particulate state of having substantially enhanced uptake of metal cations from aqueous solutions as compared to the metal uptake property of the microorganism before treatment. The biomass reaction product in the particulate state is preferably immobilized in an insoluble binder.

    摘要翻译: 当由含有金属阳离子的水溶液接触时,由具有金属吸收性的微生物提供相对固体,稳定的生物反应产物。 生物质反应产物通过用苛性碱溶液处理其细胞来生产,其中干燥后的生物反应产物的特征在于,与微生物的金属吸收性能相比,从水溶液中吸收金属阳离子的效果明显增强。 治疗。 颗粒状态的生物质反应产物优选固定在不溶性粘合剂中。

    Metal recovery
    3.
    发明授权
    Metal recovery 失效
    金属回收

    公开(公告)号:US4789481A

    公开(公告)日:1988-12-06

    申请号:US51290

    申请日:1987-04-19

    IPC分类号: C02F1/28 C12N1/00 C22B3/18

    摘要: A relatively solid, stable biomass reaction product is provided produced from microorganisms having metal uptake properties when contacted by an aqueous solution containing metal cations. The biomass reaction product is produced by treating cells thereof with a caustic solution, whereby the biomass reaction product after drying is characterized in the particulate state of having substantially enhanced uptake of metal cations from aqueous solutions as compared to the metal uptake property of the microorganism before treatment.

    摘要翻译: 当由含有金属阳离子的水溶液接触时,由具有金属吸收性的微生物提供相对固体,稳定的生物反应产物。 生物质反应产物通过用苛性碱溶液处理其细胞来生产,其中干燥后的生物反应产物的特征在于,与微生物的金属吸收性能相比,从水溶液中吸收金属阳离子的效果明显增强。 治疗。

    Thermophilic microbial treatment of precious metal ores
    4.
    发明授权
    Thermophilic microbial treatment of precious metal ores 失效
    贵金属矿石的嗜热微生物处理

    公开(公告)号:US4729788A

    公开(公告)日:1988-03-08

    申请号:US6487

    申请日:1987-01-23

    IPC分类号: C22B3/18 C22B11/04

    摘要: A method is provided for the recovery of precious metals, such as gold and silver, from refractory sulfidic material and refractory carbonaceous sulfidic material. The sulfidic material is pulped and bioleached using either facultative or obligate thermophiles at temperatures in excess of about 45.degree. C. and ranging up to about 90.degree. C. The residue remaining from the bioleach is neutralized and washed and the precious metals therein recovered by dissolution.

    摘要翻译: 提供了一种用于从难熔硫化材料和难熔碳质硫化物材料回收贵金属(例如金和银)的方法。 在超过约45℃的温度和高达约90℃的温度下,使用兼性或专性嗜热菌将硫化物料制浆和生物浸提。将来自生物浸出物的剩余残余物中和并洗涤,其中通过溶解回收贵金属 。