Thonje loyengedwa-kutsegula-alkalizing-etherifying-neutralizing-kulekanitsa-kutsuka-kulekanitsa, kuyanika-kupukuta-kunyamula-kunyamula-kumaliza kutsegulidwa kwa thonje: thonje loyengedwa limatsegulidwa kuchotsa chitsulo, ndiyeno pulverized. The thonje woyengedwa pulverized ali mu mawonekedwe a ufa, ndi tinthu kukula kwake ndi 80 mauna ndi transmittance ndi 100%. Apo ayi, n'zosavuta agglomerate pamodzi pa ndondomeko anachita ndi kuchepetsa dzuwa etherification.
Alkalization: Onjezani thonje la ufa woyengedwa pambuyo potsegula mu chosungunulira chopanda mphamvu, ndikuyambitsanso ndi alkali ndi madzi ofewa kuti mufufuze thonje la thonje loyengedwa, lomwe limathandizira kulowa kwa mamolekyu a etherifying, ndikuwongolera kufanana kwa etherification. . The alkali ntchito alkalization ndi zitsulo hydroxide kapena organic maziko. Kuchuluka kwa alkali yowonjezeredwa (ndi misa, yomweyi pansipa) ndi 0.1-0.6 nthawi ya thonje yoyengedwa, ndipo kuchuluka kwa madzi ofewa ndi 0.3-1.0 nthawi ya thonje yoyengedwa; zosungunulira inert ndi chisakanizo cha mowa ndi hydrocarbon, ndipo kuchuluka kwa inert zosungunulira anawonjezera ndi woyengeka thonje. 7-15 nthawi: zosungunulira inert angakhalenso mowa ndi 3-5 maatomu mpweya (monga mowa, propanol), acetone. Itha kukhalanso ma hydrocarbon aliphatic ndi ma hydrocarbon onunkhira; kutentha kuyenera kuyendetsedwa mkati mwa 0-35 ° C panthawi ya alkalization; nthawi ya alkalization ndi pafupifupi 1hr. Kusintha kwa kutentha ndi nthawi kungadziwike molingana ndi zofunikira za zinthu ndi mankhwala.
Etherification: Pambuyo pa chithandizo cha alkalization, pansi pazimenezi, etherification ikuchitika powonjezera etherifying agent, ndi etherifying agent ndi propylene oxide. Pofuna kuchepetsa kumwa kwa etherifying agent, mu etherification ndondomeko, wothandizira etherifying amawonjezeredwa kawiri, kuchuluka kwa kuwonjezera koyamba ndi 1-3.5 nthawi ya thonje woyengedwa, ndi kuchuluka kwa zowonjezera ziwirizo. ndi 1.5-4 nthawi ya thonje woyengedwa. nthawi. Pambuyo powonjezera wothandizira etherifying kwa nthawi yoyamba, yambitsani kutentha kwa ≤30 ° C kwa 45min-90min, kenako kutentha mpaka 50-100 ° C kwa etherification, nthawi ndi 1-5h, ndiyeno kuziziritsa mpaka ≤30. °C, Onjezani etherified Jing kachiwiri ndikuyambitsanso, nthawi yoyambitsa ndi 30-120min, kenako kutentha mpaka? ? ? Chitani etherification, nthawi ndi 1-4h, panthawiyi, thonje woyengedwa ndi etherifying wothandizira amatani kuti apange H-HPC.
Pulverization ndi kulongedza: zouma zomwe zidapangidwa pano zimapunthwa ndikusefa. Kukula kwa tinthu tating'onoting'ono tazinthu zomwe zidapangidwa pano ndi 40 mauna ndipo ma transmittance ndi 10096, kapena malinga ndi zosowa za ogwiritsa ntchito. Kenako nyamulani kuchokera kufakitale.
Nthawi yotumiza: Oct-13-2022