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公开(公告)号：US20110226701A1
公开(公告)日：2011-09-22
申请号：US12727326
申请日：2010-03-19
申请人： Guoxin WANG , Zhengxing GU , Edward GANNON
发明人： Guoxin WANG , Zhengxing GU , Edward GANNON
摘要： Some mineral processing plants encounter difficulties in dewatering pulps using clarifier/thickener (C/T) equipment due to a layer of fine particles, air bubbles and chemicals formed at the top of the liquid in the thickener. Such layers are very stable and form a cap on the C/T. The dewatering performance of the C/T then deteriorates under these conditions, and a high percentage of solids is contained in the thickener overflow. A process for removing water from rock slurry containing a wide range of particle sizes in mineral processing operations has been developed. The process includes: (a) classifying the feed slurry into two size fractions, namely a coarse fraction and a fine fraction, (b) treating the fine fraction (and the coarse fraction if required) with a selected flocculant, and (3) thickening the flocculated slurry in sedimentation equipment to separate liquid from solids.
摘要翻译： 一些矿物加工厂由于在增稠器的液体顶部形成一层细小颗粒，气泡和化学物质，使用澄清器/增稠器（C / T）设备在脱浆纸浆中遇到困难。 这些层是非常稳定的，并在C / T上形成一个盖子。 在这些条件下，C / T的脱水性能变差，并且在增稠器溢流中含有高比例的固体。 已经开发了一种在矿物加工操作中从含有大范围粒度的岩浆中去除水的方法。 该方法包括：（a）将进料浆料分选成两个大小的馏分，即粗馏分和细馏分，（b）用选定的絮凝剂处理细馏分（和粗馏分），和（3）增稠 沉淀设备中的絮凝浆液将液体与固体分离。
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公开(公告)号：US20080197053A1
公开(公告)日：2008-08-21
申请号：US11677132
申请日：2007-02-21
IPC分类号： B03D1/02
CPC分类号： B03D1/012 , B03D1/002 , B03D1/016 , B03D1/018 , B03D2201/007 , B03D2201/02 , B03D2203/02
摘要： This invention relates to the pH modifier in alkaline froth flotation processes to treat oxide and semi-soluble salt ores, such as phosphates, sulfates, carbonates and halides, to increase the recovery while generally maintaining or improving selectivity, thus the grade of desired minerals. The invented pH modifier is used to replace traditional alkaline pH modifiers—hydroxides, carbonates and bicarbonates, such as sodium hydroxide, sodium carbonate, lime and ammonia in anionic flotation processes. The pH modifier is aqueous solution, comprised of combinations of sodium hydroxide, sodium carbonate, and sodium silicate, along with sulfonated surfactant products, such as sulfonated petroleum oil, fatty acids, alkylates, ethoxylated alcohol ethers, and also sulfosuccinamates; and anionic polymers. The pH modifier is also used as a promoter for anionic collectors and as a depressant for gangue minerals.
摘要翻译： 本发明涉及碱性泡沫浮选方法中的pH调节剂，用于处理氧化物和半可溶性盐矿，例如磷酸盐，硫酸盐，碳酸盐和卤化物，以提高回收率，同时通常保持或提高选择性，从而提高所需矿物的等级。 本发明的pH调节剂用于在阴离子浮选工艺中代替传统的碱性pH调节剂 - 氢氧化物，碳酸盐和碳酸氢盐，如氢氧化钠，碳酸钠，石灰和氨。 pH调节剂是由氢氧化钠，碳酸钠和硅酸钠的组合组成的水溶液，以及磺化的表面活性剂产物，例如磺化石油，脂肪酸，烷基化物，乙氧基化醇醚和磺基琥珀酸盐; 和阴离子聚合物。 pH调节剂也用作阴离子捕集剂的促进剂，也用作脉石矿物的抑制剂。
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