This paper studies on the recycling technology of catalyzing and displacement of cuprum in acid and alkali laden waste liquid discharged during production of circuit board using DH-Ⅱreagent and iron scale.
对电路板生产过程中排放的酸、碱两种蚀刻废液,用DH-Ⅱ试剂催化铁置换法回收金属铜工艺进行了探索,分别考察了催化置换反应pH值及铁屑用量条件。
The reaction mechanism and the latest research status of displacement fluorination of aromatics are summarized, and the development trends are forecasted also.
综述了芳香族置换氟化的反应机理与最新研究状况,并展望了其未来发展前景。
The acyl chloride product was fluorinated by potassium fluoride and esterified by methanol to synthesize dimethyl tetrafluoroterephthalate.
以氟化钾为氟化剂,环丁砜为溶剂置换氟化,再与甲醇酯化得到四氟对苯二甲酸甲酯;
The other new technologies used in displacement fluorination are as follows, such as ultrasonic technology, microwave process and electrochemical method.
应用到置换氟化的新技术还有超声波技术、微波技术和电化学技术。
Synthesis of Sevoflurane in Ionic Liquids by Halogen-exchange Fluorination
离子液体中卤素交换氟化合成七氟醚
Methods for chemical analysis of magnesium powders and aluminium-magnesium alloy powders--The fluoride replacement-complexometric method for the determination of aluminium content
GB/T4374.4-1984镁粉和铝镁合金粉化学分析方法氟化物置换络合滴定法测定铝量
Effect of Sevoflurane Pretreament on Cardiac Enzyme in Patients during Value Replacement
七氟醚对心脏瓣膜置换术患者心肌酶的影响
Preparation and Characterization of Upconversion Fluorides Nanometer Materials;
上转换氟化物纳米材料的制备与表征
Study on SF_6 Breakers Micro-water Examination Device
六氟化硫断路器微水检测装置的研究
atmospheric displacement
空气置换转化为蒸汽
transistorized channel translating equipment
晶体管化波道调换装置
Determination of flurorine content in toothpaste by replacing proliferation box with hydrogenfluoride device
氟化氢发生装置替代扩散盒测定牙膏中总氟含量
The Effects of cTnI、CK-MB with Sevoflurane Combined Anesthesia on Patients with Cadiac Valve Replacement;
七氟醚静吸复合麻醉对瓣膜置换术患者cTnI、CK-MB的影响
Preparation and Up-conversion Luminescence Characterization of Fluoride Nano-crystal Glass;
氟化物微晶玻璃制备与其上转换发光特性研究
The Application of Perfluorosulfonated Membrane in Electrochemical Synthesis
全氟磺酸离子交换膜应用于电化学中的研究
Study of Two/Three-Photon Upconversion on Fluorides Nanometer Materials
双光子/三光子上转换氟化物纳米材料的研究
Corrosion Behavior of Intraoral Fluoride Controlled-release Device to Chromium-cobalt Castings;
氟化物控释装置对钴铬合金腐蚀性的实验研究
Polyethylene glycols can be used as effective phase transfer catalyst in halogen exchange fluorination.
聚乙二醇可作为卤素交换氟化反应有效的相转移催化剂。
Upconversion Emission Design in Rareearth Doped Oxide and Fluoride Nanocrystals
稀土氧化物和氟化物纳米晶上转换荧光光谱的设计研究
Magnetization and Bioapplication of Rare-earth Doped Fluoride Upconvertion Fluorescent Nanoparticles
稀土氟化物上转换荧光纳米粒子的磁功能化与生物应用