摘要
本文论述了高效助滤剂应具备的性能特点，作为高效助滤剂应同时具有使颗粒表面“大面积疏水”和促使微细颗粒絮凝的双重功能。提出了以线性大分子表面活性剂作为高效助滤剂的设计构思，设计并合成了能使矿物表面“大面积疏水”并兼有一定絮凝功能的大分子表面活性剂，开发出了PCRE新一代大分子表面活性剂型助滤剂。过滤实验表明，PCRE对赤铁矿具有优良的助滤性能，可将平均粒度为7．3μm的赤铁矿的滤饼水分从17.7％降至11．2％，将东鞍山浮选铁精矿的滤饼水分从16．2％降至13．6％．
This pater discusses the performance and features meeting the meeds for high-effective filter aid agent. The agent must be with both abilities of 'lagrge-area hydrophobicity' for particIe surface and of 'flocculability' for fine particles. The design concept of using linear macromolecular surface-active agent as high-effective filter aid one was presented; the macromolecular surface-active agent with large-hydrophobility for mineral surface had been designed and composited. The RCRE filter aid agent as new-generation macromolecular surface-acticve agent has been dedveloped. The filtering test showed that the PCRE has a good filtering performance and can decrease the moisture of filter press cakes of hematite with mean particle size of 7. 3μm from 17. 7% to 11. 2%. In Dong'anshan Iron Mine, the PCRE had decreased the moisture of filter press cakes from 16. 2 % to 13. 6 %.
出处
《中国矿业》
1995年第4期57-60,共4页
China Mining Magazine
关键词
过滤
助滤剂
表面活性剂
分子设计
选矿
Filtration, Fifter aid agent, Macromolecular surface-active agent, Design of molecules
