產品(pin)中(zhong)心(xin)
PRODUCTS
脂(zhi)肪醇(chun)fatty alcohol 洗(xi)滌(di)劑用表(biao)面(mian)活性劑的原(yuan)料(liao)之壹。通(tong)式(shi)為(wei)ROH。洗(xi)滌(di)劑用醇(chun)的R壹(yi)般為C12~C18的烴(ting)基(ji)。這種(zhong)高(gao)碳脂(zhi)肪醇(chun)原(yuan)具有兩(liang)親(qin)的特(te)性(xing),即在(zai)分子(zi)中(zhong)有疏(shu)水基如(ru)碳(tan)氫鏈,又有親(qin)水基如(ru)羥基(ji)。但(dan)由於在水中(zhong)的溶(rong)解(jie)度很(hen)低,必(bi)須添加親(qin)水基或(huo)將(jiang)羥基(ji)轉(zhuan)變為(wei)硫酸(suan)基(ji),使(shi)親(qin)水親油(you)平(ping)衡值(zhi)達(da)到必(bi)要數(shu)值(zhi)後(hou),脂肪醇(chun)衍生(sheng)物(wu)有了(le)足夠的親(qin)水基能(neng)使(shi)之溶解(jie)於水,並能(neng)成(cheng)為(wei)聚集(ji)體(膠束)時(shi),這種(zhong)脂(zhi)肪醇(chun)衍生(sheng)物(wu)才(cai)是表面(mian)活性劑。例如,十二(er)醇(chun)不溶於水,但當它(ta)變成(cheng)十(shi)二醇硫酸(suan)鈉(na)時(shi),由於接(jie)上(shang)了(le)壹個硫酸(suan)基(ji)(—SO3—),水溶性(xing)變好(hao),並能(neng)在(zai)水中(zhong)生(sheng)成(cheng)膠束,達(da)到壹(yi)定濃(nong)度時(shi),顯示出(chu)非(fei)常好(hao)的表(biao)面(mian)活性。人(ren)們(men)就(jiu)是利用這種(zhong)特(te)性,以脂肪醇(chun)為原(yuan)料(liao),制(zhi)出(chu)了多種(zhong)具有各(ge)種(zhong)優(you)異性能(neng)的表(biao)面(mian)活性劑。
RCOOH+2H2─→RCH2OH+H2O
脂(zhi)肪酸(suan)酯(zhi)加氫(qing)制(zhi)脂(zhi)肪醇(chun)的化(hua)學反(fan)應(ying)式:
RCOOR′+2H2─→RCH2OH+R′OH
高(gao)壓加氫(qing)法(fa)有固(gu)定(ding)床法(fa)和懸(xuan)浮(fu)床法(fa)等,但(dan)其基(ji)本工藝流(liu)程相同(tong)
【包(bao)裝與貯存】 塑(su)料(liao)桶(tong)包裝(zhuang),200kg/桶(tong)或(huo)125kg/桶(tong)。貯存(cun)於陰(yin)涼、通(tong)風(feng)、幹(gan)躁(zao)處, 保質(zhi)期(qi)壹(yi)年。