CAJ | 학술논문

采用碱性混合活化剂处理风化煤，研制腐植酸添加剂，按不同比例添加到尿素熔融液中，采用模拟喷浆造粒的方法，制备3类增效尿素。通过风化煤与添加剂、尿素与增效尿素红外光谱特征对比发现：风化煤经过活化后，碳单键数量降低，碳链缩短，活性腐植酸HA类提取物出现活性官能团，FR类除单键数量减少和碳链缩短外，生成部分胺、酰胺结构；增效剂与尿素在反应过程中，出现了三键和累积双键破坏、稳定性复合物形成、碳链缩短、双键结构增加等变化，但不同类型增效剂对产品红外光谱特征影响存在差异。
채용감성혼합활화제처리풍화매，연제부식산첨가제，안불동비례첨가도뇨소용융액중，채용모의분장조립적방법，제비3류증효뇨소。통과풍화매여첨가제、뇨소여증효뇨소홍외광보특정대비발현：풍화매경과활화후，탄단건수량강저，탄련축단，활성부식산HA류제취물출현활성관능단，FR류제단건수량감소화탄련축단외，생성부분알、선알결구；증효제여뇨소재반응과정중，출현료삼건화루적쌍건파배、은정성복합물형성、탄련축단、쌍건결구증가등변화，단불동류형증효제대산품홍외광보특정영향존재차이。
After treated with alkaline solution and then centrifuged, weathered coal was divided into water-soluble humic acid and deposi-tion. Then as the urea synergist materials, weathering coal, humic acid and deposition were respectively mixed with melted urea according to different proportion to produce three kinds of compound urea. The infrared spectrum analysis(IR)of above synergist materials and products found that after being treated with alkaline, weathered coal was reduced carbon-carbon bond amount and its carbon chain became shorten, more active functional group happened to the HA extracts. While the FR deposition showed carbon-carbon bond reduced and parts of amine or amide structure were formed. Additionally, the IR also found that during the compound of urea with the synergists, the formation of carbon-carbon triple bond, the broken of accumulated double bonds, the shorten of carbon chain, and the formation of more double bond and stable structure were observed. However, the different synergists mixed with urea brought out different IR characters.