1.The method has been applied to the determination of BaO and BaSO 4 in Barite concentrates and other ores. The analytical results from this method are in agreement with alkali fusion BaSO 4 gravimetry and BaCrO 4 volumetry with precision of < 5% RSD ( n =10).
方法用于矿石、重晶石单矿物中BaO和BaSO4的测定 ,结果与碱熔BaSO4重量法、BaCrO4容量法、外检结果相一致 ,精密度试验结果 ,相对标准偏差RSD(n =1 0 ) <5 %。
2.The useful ore mineral is barite and the gangue minerals are mainly calcite, clay mineral and quartz et al.
矿石矿物为重晶石，脉石矿物主要有方解石、粘土矿物和石英等。
3.Study on chemical modification activated barite
活化重晶石的研究
4.1 Barite is one of the weighting materials. The density is about 4.2 S.G.
重晶石粉是加重材料的一种。其密度大约为4.2S.G.
5.The mixing of the Ba-rich Na - Ca - Cl - HCO3 -type water with the SO42---rich Ca - Na - SO4 - Cl-type water is the most important reason for the formation of secondary barite " Meiβelspat" in the Clara mine.
富Ba的Na-Ca-Cl-HCO_3类型水与富SO_4~(2-)的Ca-Na-SO_4-Cl类型水的混合是克拉拉矿次生重晶石形成的最主要原因。
6.The useful mineral of the ore is barite, and its gangue mineral essenti-ally include ecarbonaceous clay mineral and quartz(including chalcedony, ete.)
矿石的有用矿物为重晶石,脉石矿物主要有方解石、含炭的粘土矿物和石英(含玉髓)等。
7.The test results in this paper show that the mixture of starch calcium nitrate can improving the selectivity of naphthenic acid (NPA) collecting fluorite and barite in flotation.
环烷酸对萤石和重晶石的捕收能力存在一定差异，淀粉?硝酸钙组合药剂能够进一步扩大这种差异。 浮选试验结果表明，组合药剂既能提高环烷酸对萤石的捕收能力，又能加强淀粉对重晶石的抑制能力。
8.Mixing of different waters and formation of secondary barite in the Clara mine, Black Forest, Germany
德国黑森林中部克拉拉(Clara)萤石重晶石矿不同类型水的混合作用及次生重晶石的形成
9.Superfine natural barium sulfate powder, made by processing high-purity barite ore, is widely used in the industries of paint, powder paint and plastic, etc.
由高纯度天然硫酸钡加工而成的超细粉末，广泛用于涂料、粉末涂料、塑料等行业。
10.Huangmei has a rich reserve of underground minerals, 15 sorts are proven to have exploitation value, of which, limonite and siderite have a reserve of 58 million tons, the tenor is around 45%, being concentrated; quartz is of 100 million tons; gypsum mine is 270 million tons; barite is 500,000 tons and silex of 10 million tons; porcelain clay, limestone, shale and granite are extensively distributed and of large reserve.
黄梅地下矿产丰富,已探明有开采价值的矿产资源15种,其中褐铁矿、菱铁矿储量5800万吨,品位45%左右,分布集中；石英矿1亿吨；石膏矿2.7亿吨；重晶石50万吨；硅石1000万吨；瓷土、石灰石、页岩石、花岗岩分布广、储量大。
