Tsarin jujjuyawar ethers cellulose ya ƙunshi matakai da yawa na cire cellulose daga albarkatun ƙasa sannan a canza shi zuwa ethers cellulose. Cellulose ethers sune mahadi masu yawa tare da aikace-aikace a cikin masana'antu daban-daban, ciki har da magunguna, abinci, yadi da gine-gine. Tsarin ƙwanƙwasa yana da mahimmanci don samun ingantaccen cellulose, albarkatun ƙasa don samar da ethers cellulose. Mai zuwa shine cikakken bayani game da tsarin pulping cellulose ether:
1. Zaɓin ɗanyen abu:
Tsarin pulping yana farawa tare da zaɓin kayan albarkatun da ke ɗauke da cellulose. Tushen gama gari sun haɗa da itace, auduga, da sauran filayen shuka. Zaɓin kayan albarkatun ƙasa ya dogara da dalilai kamar samuwar ether cellulose, farashi da kaddarorin da ake so.
2. Hanyar yin almara:
Akwai hanyoyi da yawa na pulping cellulose, galibi sun haɗa da ɓarkewar sinadarai da bugun injina.
3. Sinadarin pulping:
Kraft pulping: Ya ƙunshi maganin guntun itace tare da cakuda sodium hydroxide da sodium sulfide. Wannan tsari yana narkar da lignin, yana barin bayan ƙwayoyin cellulosic.
Sulfite pulping: Yin amfani da sulfurous acid ko bisulfite don rushe lignin a cikin kayan abinci.
Kwayoyin kaushi na halitta: Yin amfani da kaushi mai ƙarfi kamar ethanol ko methanol don narkar da lignin da raba zaruruwan cellulose.
4. Injiniyan bugu:
Juya itacen ƙasan dutse: Ya haɗa da niƙa itace tsakanin duwatsu don raba zaruruwa ta hanyar inji.
Refiner Mechanical Pulping: Yana amfani da ƙarfin inji don raba zaruruwa ta hanyar tace guntun itace.
5. Bleaching:
Bayan pulping, cellulose yana yin aikin bleaching don cire ƙazanta da launi. Ana iya amfani da Chlorine, chlorine dioxide, hydrogen peroxide ko oxygen yayin matakin bleaching.
5.. Canjin Cellulose:
Bayan tsarkakewa, ana canza cellulose don samar da ethers cellulose. Hanyoyi na yau da kullun sun haɗa da etherification, esterification da sauran halayen sinadarai don canza halayen jiki da sinadarai na cellulose.
6. Tsarin etherification:
Alkalization: Yin maganin cellulose tare da alkali (yawanci sodium hydroxide) don samar da alkali cellulose.
Ƙara etherifying jamiái: Alkaline cellulose amsa tare da etherifying jamiái (kamar alkyl halides ko alkylene oxides) don gabatar da ether kungiyoyin a cikin cellulose tsarin.
Neutralization: Neutralize da dauki cakuda don kawo karshen dauki da kuma samun da ake so cellulose ether samfurin.
7. Wanka da bushewa:
Ana wanke samfurin ether na cellulose don cire samfurori da ƙazanta. Bayan tsaftacewa, kayan yana bushe don cimma abin da ake so danshi.
8. Nika da dubawa:
Busassun ethers cellulose na iya zama ƙasa don samun takamaiman nau'ikan nau'ikan ƙwayoyin cuta. Ana amfani da sieving don raba ɓangarorin girman da ake buƙata.
8. Kula da inganci:
Ana aiwatar da matakan kula da ingancin don tabbatar da cewa ethers cellulose sun hadu da ƙayyadaddun ka'idoji. Wannan ya haɗa da gwajin danko, matakin maye gurbin, abun cikin danshi da sauran sigogi masu dacewa.
9. Marufi da bayarwa:
Samfurin ether cellulose na ƙarshe yana kunshe kuma an rarraba shi zuwa masana'antu daban-daban. Marufi mai dacewa yana tabbatar da cewa ana kiyaye ingancin samfur yayin ajiya da sufuri.
Tsarin pulping na ether cellulose wani hadadden matakan matakai ne da suka shafi zabin albarkatun kasa, hanyar pulping, bleaching, gyaran cellulose, etherification, wankewa, bushewa, niƙa da kula da inganci. Kowane mataki yana da mahimmanci wajen ƙayyade inganci da kaddarorin ether cellulose da aka samar, yana sa ya dace da aikace-aikace masu yawa. Ci gaban fasaha na ci gaba da haɓakawa da haɓaka waɗannan matakai don haɓaka inganci da dorewa na samar da ether cellulose.
Lokacin aikawa: Janairu-15-2024