Thermodynamic analysis results show that most heavy metallic ions and As(Ⅲ) in Na_2TeO_3 solution can be removed thoroughly by sulfide precipitation method.
实验确定硫化沉淀法去除杂质离子的最佳条件是:pH=11,温度为373 K,反应时间为50 min。
Fluidity of precipitated barium sulfate powder and its effecting factor;
沉淀硫酸钡粉体流动性及影响因素分析
According to the production experience for many years,the factors of effecting on the quality of precipitated barium sulfate are summarized and the measures for improving the product quality are put forward.
根据多年的生产经验，总结出影响沉淀硫酸钡产品质量的因素；就原料液含杂质超标以及各生产工序工艺条件控制不合理提出解决问题的办法；提出了提高沉淀硫酸钡产品质量的措施。
LDH was purified by ammonium sulphate precipitation (40% satura- tion), DEAE Sepharose F.
采用了硫酸铵沉淀、DEAESepharoseF。
DCFE was purified by ammonium sulphate precipitation,CM-Sepharose fast flow ionexchange chromatography,Sephacryl S-(200.
淡豆豉浸提液经过硫酸铵沉淀、CM-Sepharose-FF离子交换色谱和Sephacryl S-200凝胶过滤等步骤,得到豆豉纤溶酶,经SDS-PAGE表明豆豉纤溶酶为单一谱带。
" Barium sulphate,precipitated for industrial use"
GB/T2899-1996工业沉淀硫酸钡
precipitated barium sulfate and ground barite(pigment)
沉淀硫酸钡和重晶石粉末(染料)
Research on Barium Sulfate Precipitation Industrial Cleaner Production and Pollution Prevention and Control
沉淀硫酸钡工业清洁生产及污染防治研究
Application of combination dryer including paddles-and continuous plate-dryers in production of precipitated barium sulfate
双桨叶加盘式组合干燥在沉淀硫酸钡生产中的应用
An exploration into the sulphide precipitation method and its effect on metal sulphide removal
硫化物沉淀法及其对金属硫化物去除率的探讨
Study on Co-precipitation Experiment of Calcium Sulfite and Calcium Sulfate
亚硫酸钙和硫酸钙混合物共沉淀实验研究
Since small amounts of barium sulfate do not readily coagulate the precipitate can easily go unnoticed.
少量的硫酸钡沉淀凝聚缓慢，往往被忽略。
The treatment sequence involved addition of ferrous sulfate for precipitation, and subsequence filtration.
处理步骤是先加硫酸亚铁使之沉淀，然后过滤。
Construction of Crystal Morphology and Study on Precipitation Process of Thiamine Nitrate;
硝酸硫胺晶体形态构筑与沉淀过程研究
Wastewater Treatment for Dual-Alkali Flue Gas Desulfurization by Chemical Precipitation and Flocculation;
化学沉淀—絮凝法处理双碱法烟气脱硫废水
Continuous Study in the Production of Precipitated Silica with High Gravity Method
超重力硫酸沉淀法白炭黑的连续化生产研究
Nano Sized CdS and PbS Particles:Preparation by Coupling of Biological Reduction and Chemical Precipitation Mediated with EDTA
生物还原-化学沉淀耦合反应制备纳米硫化镉和硫化铅
For such fuels, sulphur is claimed to aggravate problems of wear and deposits.
对于这些燃料油来说，硫被认为会增大磨损和沉淀问题。
Major treatment methods for arsenic include sulfide precipitation, or complexation with polyvalent heavy metals.
砷的主要处理方法有硫化物沉淀法，或与多价重金属络合。
A new method was studied for the determination of Nickel in Lead ingot in nitre acid after the main part were separated by Lead Sulphate.
试验采用硫酸铅沉淀分离主体后,在硝酸介质中测定微量镍。
The Study of ZrSiO_4-Cd(S_xSe_(1-x)) Pigments Synthesized by Sol and Co-Precipitation Method;
溶胶沉淀法合成硅酸锆包裹硫硒化镉颜料的研究
The Preparation of ZnFe_2O_4 High Temperature Coal Gas Desulfurizer by Coprecipitation under Ultrasonic;
超声波辅助共沉淀法制备高温煤气脱硫剂铁酸锌
Study on the Nano Activity of Precipitant for removal of Zinc and Heavy Metals in Ferrous Sulfate;
纳米活性沉淀剂去除硫酸亚铁中的锌及重金属研究