1) separation using sodium sulfide and cupral
硫化钠及铜试剂分离法
2) Oxford process
用硫化钠从铜中分离镍法
3) separation with cupral
铜试剂分离
1.
Spectrophotometric determination of trace titanium in steel with diantipyrymethane after separation with cupral;
铜试剂分离-二安替比林甲烷光度法测定钢中痕量钛
4) copper-sulphur separation
铜硫分离
1.
Based on mineral characteristics of a pyrite western Henan,single sulphur flotation technology was reformed into preferential copper selection and copper-sulphur separation technology according to experiments,high quality sulphur concentrates and rough copper concentrate containing certain gold and silver separately,better producing technique index and good economic benefit were obtained.
根据豫西某硫铁矿的原矿矿物特性,在试验研究的基础上,将原单一选硫浮选工艺改造成优先选铜,铜硫分离工艺,分别得到了优质硫精矿和含一定金银的铜粗精矿产品,获得了较好的生产技术指标和良好的经济效益。
5) Cu-S separation
铜硫分离
1.
In this paper,the application of the low-alkality Cu-S separation new technology in dashan plant was intradueed,and the propeties of the low-alkality technology and the high-alkality technoloty were described.
介绍了低碱度铜硫分离新工艺在大山选矿厂的生产应用情况,说明了低碱度工艺比石灰高碱度工艺实现铜硫分离的技术特点;对生产应用中存在的问题和解决方法进行了分析讨论,取得了显著的经济效益和社会效益。
2.
Cu-S separation test was conducted at pH=7~8 with Ca(ClO)2 as the depressor for pyrite, and the depressing mechanism of Ca(ClO)2 for pyrite was studied.
试验表明,Ca(ClO)2是黄铁矿的良好抑制剂,在矿浆pH=7~8低碱度条件下,不添加石灰,只需加入少量的Ca(ClO)2抑制剂,就可以很好地抑制黄铁矿,实现铜硫分离。
6) copper-sulfur separation
铜硫分离
1.
The refractory copper-sulper ore in Dong Gua Shan copper ore and in higher alkaline medium to carry out copper-sulfur separation,so it is very difficult to recovery the pyrite,to search reasonable processing technology is very important.
冬瓜山矿石属复杂的高硫铜矿石,高碱铜硫分离工艺给选硫作业带来很大困难,探索合适的选硫工艺具有十分重要的意义。
2.
Effectively depressor can copper-sulfur separation in lower alkaline pulp,to make favorable conditions for flotating pyrite,B1 drug-free,and the cost of reagent no more than the cost of lime,waste water of the mineof copper is low.
04%,使用新型硫抑制剂B1低碱度下实现铜硫分离,并且有利于后续作业回收硫矿物,B1无毒,药剂成本与石灰工艺比较基本持平,矿山外排废水碱度将降低。
补充资料:硫化钠
Na2S 俗称硫化碱,无水纯品为等轴晶系白色结晶。有腐蚀性,易潮解;溶于水,溶液呈碱性;遇酸分解产生硫化氢;在空气中易氧化。工业品含有不同结晶水(Na2S·xH2O),一般含硫化钠60%左右,因含少量杂质通常为淡黄色或浅粉红色。产品有块状、片状和颗粒状。
工业上制取硫化钠主要有两种方法:①氢氧化钠吸收法。用浓氢氧化钠溶液吸收净化后的含硫化氢气体,反应式为:
H2S+NaOH─→NaHS+H2O
NaHS+NaOH─→Na2S+H2O反应液经浓缩、冷却固化或制片,或喷雾造粒制成不同形状的产品。此法产品较纯,又有利于三废治理。②煤粉还原法。将硫酸钠与煤粉混合在回转窑内于800~1100℃下进行还原反应,反应式为:
Na2SO4+4C─→Na2S+4CO
Na2SO4+4CO─→Na2S+4CO2产物经水浸、澄清、浓缩、冷却固化制得。此法历史较长,工艺成熟,操作简单,原料价廉,但产品纯度低。中国目前多采用此法。
硫化钠主要用作生皮脱毛剂,纸浆蒸煮剂,硫化染料的原料,染料中间体还原剂,织物染色媒染剂,矿石浮选剂,也可用作粘胶纤维脱硫剂以及生产硫氢化钠和多硫化钠原料等。
工业上制取硫化钠主要有两种方法:①氢氧化钠吸收法。用浓氢氧化钠溶液吸收净化后的含硫化氢气体,反应式为:
H2S+NaOH─→NaHS+H2O
NaHS+NaOH─→Na2S+H2O反应液经浓缩、冷却固化或制片,或喷雾造粒制成不同形状的产品。此法产品较纯,又有利于三废治理。②煤粉还原法。将硫酸钠与煤粉混合在回转窑内于800~1100℃下进行还原反应,反应式为:
Na2SO4+4C─→Na2S+4CO
Na2SO4+4CO─→Na2S+4CO2产物经水浸、澄清、浓缩、冷却固化制得。此法历史较长,工艺成熟,操作简单,原料价廉,但产品纯度低。中国目前多采用此法。
硫化钠主要用作生皮脱毛剂,纸浆蒸煮剂,硫化染料的原料,染料中间体还原剂,织物染色媒染剂,矿石浮选剂,也可用作粘胶纤维脱硫剂以及生产硫氢化钠和多硫化钠原料等。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条