由黄磷生产副产物磷泥制备磷铜实验研究

Preparation of Phosphor Copper from Phosphorus Sludge Produced in Process of Yellow Phosphorus

利用硫酸铜和磷泥作为基本原料,采用液相法合成基础功能材料磷铜。研究了磷铜产物的物相组成,反应时间、反应温度、硫酸铜浓度等条件对产率和产物中Cu+P含量的影响及高温熔融处理对产物的提纯效果。XRD表征及铜、磷定量分析结果证实所制产物中主要物相为Cu3P,Cu/P摩尔比为2.96±0.34。结果表明,硫酸铜和磷泥反应制取磷铜的适宜反应条件为:反应时间60 min、反应温度70℃、硫酸铜浓度30%(w/w)或初始Cu2+/P4摩尔比为5.2;适宜反应条件下所得产物产率为88%,Cu+P含量为98%,Cu/P摩尔比为3.03;高温熔融可使磷铜含量较低产品的Cu+P含量由74%提高至84%。

Phosphorus sludge was used as the raw material for the preparation of an important functional material,phosphor copper,by reacting with copper sulphate in aqueous phase.The following aspects were researched： the phase composition of product;the influence of process conditions（reaction time,temperature,concentration of copper sulphate） on the yield and Cu＋P content;the purification of product by higher temperature treatment.The XRD results and quantitative analysis of Cu and P proved that the main phase of the prepared product was Cu3P and molar ratio of Cu/P was 2.96±0.34.The optimum process conditions were： reaction time of 60 min,reaction temperature of 70 ℃ and copper sulphate concentration of 30%（w/w） or initial molar ratio of Cu2＋/P4 of 5.2.The yield,Cu＋P content and molar ratio of Cu/P of the sample prepared under the optimum process conditions were 88%,98% and 3.03,respectively.The higher temperature treatment was approved to be feasible method for the purification of phosphor copper product by raising the Cu＋P content of a product from 74% to 84%.