它用于矿石或精矿的浸出，以及金属或氧化物从浸出液中沉淀出来。
It is applied for leaching of ores or concentrates and for the precipitation of metals or oxides from leach solutions.
后者是指从被污染地下水中沉淀析出石膏、方解石、萤石以及某些重金属元素的氢氧化物、氧化物、酸式盐和碱式盐的过程。
The technogenic sedimentation refers to the precipitation of gypsum, calcite, fluorite, as well as hydroxides, oxides and salts of some heavy metallic elements from polluted groundwater.
反应过程中，凹凸棒石八面体阳离子的溶解能诱导重金属共沉淀，在凹凸棒石表面形成双氢氧化物。
During the reaction, the octahedral dissolution of palygorskite induced heavy metal ions coprecipitation forming mixed double hydroxid precipitation on the surface of palygorskite.
对低含量水质样品采用了碱金属氢氧化物共沉淀，简化了样品富集程序，提高了测试灵敏度。
The alkali hydroxide co-precipitation for low content water sample is employed to simplify the sample enrichment process and the monitoring sensitivity is improved.
贵金属：氢氧化物沉淀+贵金属回收，如蒸发，离子交换等等。
Precious metals: hydroxide precipitation and sedimentation plus precious metal recovery, e. g. evaporation, ion exchange, etc.
采用共沉淀法和金属有机络合物固载法，分别制备了钴氧化物负载的纳米金催化剂。
Cobalt oxide supported nanometer gold catalysts were prepared by coprecipitation and organo-gold complex grafting method respectively.
它从金属盐溶液中，沉淀不溶性氢氧化物(见氢氧化铵)。
It precipitates insoluble hydroxides from metal salts in solution. (See ammonium hydroxide.)
它从金属盐溶液中，沉淀不溶性氢氧化物(见氢氧化铵)。
It precipitates insoluble hydroxides from metal salts in solution. (See ammonium hydroxide.)
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