广州化工
廣州化工
엄주화공
GUANGZHOU CHEMICAL INDUSTRY AND TECHNOLOGY
2014年
14期
1-5
,共5页
陈湘攀%胡慧萍%刘锦伟%王梦%陈启元
陳湘攀%鬍慧萍%劉錦偉%王夢%陳啟元
진상반%호혜평%류금위%왕몽%진계원
氧肟酸型聚丙烯酰胺絮凝剂%合成%赤泥%沉降分离效果
氧肟痠型聚丙烯酰胺絮凝劑%閤成%赤泥%沉降分離效果
양우산형취병희선알서응제%합성%적니%침강분리효과
hydroxamated polyacrylamide flocculants%synthesis%red mud%settling performance
以高分子量聚丙烯酰胺（PAM）为原料，合成了聚丙烯酰胺改性氧肟酸型絮凝剂产品（HPAM）。通过傅里叶变换红外光谱分析（ FT-IR）证实了该产品中氧肟酸基团的存在。用电导滴定法与凯氏定氮法相结合，测得该产品中氧肟酸基团含量高达46％，羧基含量23％。用针铁矿含量高的合成拜耳法赤泥浆料研究了该絮凝剂产品添加量对针铁矿含量高的赤泥沉降分离效果影响。结果表明，该絮凝剂产品对于该针铁矿含量高的赤泥具有良好的沉降分离效果，与美国氰特公司产品Hx-600的赤泥沉降效果基本相当。
以高分子量聚丙烯酰胺（PAM）為原料，閤成瞭聚丙烯酰胺改性氧肟痠型絮凝劑產品（HPAM）。通過傅裏葉變換紅外光譜分析（ FT-IR）證實瞭該產品中氧肟痠基糰的存在。用電導滴定法與凱氏定氮法相結閤，測得該產品中氧肟痠基糰含量高達46％，羧基含量23％。用針鐵礦含量高的閤成拜耳法赤泥漿料研究瞭該絮凝劑產品添加量對針鐵礦含量高的赤泥沉降分離效果影響。結果錶明，該絮凝劑產品對于該針鐵礦含量高的赤泥具有良好的沉降分離效果，與美國氰特公司產品Hx-600的赤泥沉降效果基本相噹。
이고분자량취병희선알（PAM）위원료，합성료취병희선알개성양우산형서응제산품（HPAM）。통과부리협변환홍외광보분석（ FT-IR）증실료해산품중양우산기단적존재。용전도적정법여개씨정담법상결합，측득해산품중양우산기단함량고체46％，최기함량23％。용침철광함량고적합성배이법적니장료연구료해서응제산품첨가량대침철광함량고적적니침강분리효과영향。결과표명，해서응제산품대우해침철광함량고적적니구유량호적침강분리효과，여미국청특공사산품Hx-600적적니침강효과기본상당。
Hydroxamated polyacrylamide ( HPAM ) was synthesized from high molecular weight polyacrylamide (PAM) under the optimum reaction conditions.The hydroxamate groups of HPAM were verified by Fourier transform infrared spectrum ( FT-IR).46 mol%hydroxamate groups and 23 mol%carbonyl groups on HPAM were determined by conductometric titration combined with Kjeldahl's microanalysis method.The settling performance achieved at different flocculant dosages was investigated by using high goethite -containing red mud slurry of simulated Bayer process synthesized in laboratory.It turned out that the settling performance of high goethite -containing red mud was better by using the flocculant of HPAM , which was similar to that achieved by Hx -600.
