Iron, manganese and lead are the major minerals, accompanying silver and indium.

除铁 、 锰、铅外, 伴生有银、铟.

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Also , major research results for removing iron by phosphate has been introduced.

介绍了磷酸盐除铁的主要研究成果.

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A hard problern is free from impurity iron in tbe preparation of cupric sulfate from spongy - copper.

用海绵铜生产硫酸铜,其困难在于除铁杂质.

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Quartz sand, activated carbon, removing iron and manganese filtration, deoxygenation, fluoride removal equipment.

石英砂 、 活性碳 、 过滤除铁除锰 、 除氧 、 除氟设备.

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Remove of iron from sulfuric acid leaching solution of ferrochromium alloy by goethite is researched.

研究了用针铁矿法从铬铁合金硫酸浸出溶液中除铁并回收铬.

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In blanching, hydrogen is used as a effective reducing agent for Fe 3 +.

其中化学漂白采用氢还原除铁,效果显著.

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New technology of removing iron for purifying wet - process phosphoric acid using foam flotation has been studied.

采用泡沫分离技术净化湿法磷酸除铁是一种新工艺.

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Traditional deferrization processing of EMM is oxidative deferrization by adding MnO _ 2 when leaching.

电解金属锰生产过程的除铁,传统作法是浸出时加MnO_2氧化除铁.

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