本文選題：腐植酸 + 水處理劑�。� 參考：《西安石油大學(xué)》2015年碩士論文

【摘要】：由于水資源日趨緊張所導(dǎo)致的工況條件的惡化給阻垢劑的發(fā)展帶來(lái)了新的挑戰(zhàn)。隨著人類對(duì)環(huán)境重視程度的提高、水資源的保護(hù)和節(jié)約力度的加大,以及環(huán)保法規(guī)的日益嚴(yán)格,綠色環(huán)保、高效的阻垢劑是未來(lái)水處理劑的發(fā)展趨勢(shì)。本文基于上述思路,合成了兩種新型阻垢劑PHA/MAA和PHA-ECDH。對(duì)各產(chǎn)品的主要官能團(tuán)分別進(jìn)行了紅外波譜表征;并以阻垢性能為考察指標(biāo),利用單因素實(shí)驗(yàn)對(duì)其室內(nèi)合成條件進(jìn)行了優(yōu)化。腐植酸作為一種天然、綠色、價(jià)格低廉的活性原料,一直是國(guó)內(nèi)外學(xué)者研究的熱點(diǎn)。本論文針對(duì)腐植酸分子特有的結(jié)構(gòu),利用酚化改性手段,制備了酚化腐植酸鉀(PHA)。最佳制備條件:腐植酸鉀:苯酚(質(zhì)量比)=4:1,反應(yīng)溫度100℃,反應(yīng)時(shí)間2h,反應(yīng)p H為9.5~11,其羥基值最大為3.375mmol.g-1。通過(guò)溶液聚合的方式,利用PHA和甲基丙烯酸(MAA)反應(yīng),過(guò)硫酸銨為引發(fā)劑,水為溶劑,制備酚化腐植酸-甲基丙烯酸共聚物(PHA-MAA)。最佳制備條件:單體中和度(甲基丙烯酸)為85%,PHA:MAA(質(zhì)量比)=1:1.5,反應(yīng)時(shí)間4h,反應(yīng)溫度75℃,引發(fā)劑(過(guò)硫酸銨)用質(zhì)量濃度為10%,共聚物的阻垢性能最佳。在堿性條件下,利用PHA和兩性甜菜堿中間體2,3-環(huán)氧丙基二甲銨基乙酸鹽(ECDH)進(jìn)行醚化反應(yīng),制備兩性酚化腐植酸(PHA-ECDH)。最佳制備條件:PHA:ECDH(質(zhì)量比)=1:2,反應(yīng)溫度為85℃,反應(yīng)時(shí)間6h,反應(yīng)p H為8,溶劑為水,其阻垢性能最佳。
[Abstract]:The deterioration of working conditions caused by the increasing shortage of water resources brings new challenges to the development of scale inhibitors. With the increase of human attention to the environment, the increase of water resources protection and conservation, and the increasingly strict environmental protection laws, green environmental protection, efficient scale inhibitor is the development trend of water treatment agents in the future. Based on the above ideas, two novel scale inhibitors, PHA/MAA and PHA-ECDH, were synthesized. The main functional groups of each product were characterized by IR spectrum, and the laboratory synthesis conditions were optimized by single factor experiment with the scale inhibition performance as the index. As a kind of natural, green and cheap active raw material, humic acid has been a hot spot of domestic and foreign scholars. In this paper, based on the unique structure of humic acid molecules, the phenolic potassium humate PHAA was prepared by phenolic modification. The optimum preparation conditions were as follows: potassium humate: phenol (mass ratio 4: 1), reaction temperature 100 鈩，

本文編號(hào)：1832334