Idethi yokuthunyelwe:28,Mar,2022

I-Lignin ingeyesibili ngemva kwe-cellulose ezindaweni zokulondoloza imvelo, futhi ivuselelwa ngenani lamathani ayizigidi eziyizinkulungwane ezingu-50 minyaka yonke. Imboni ye-pulp nephepha ihlukanisa amathani angaba yizigidi eziyi-140 ze-cellulose ezitshalweni minyaka yonke, futhi ithola amathani angaba yizigidi ezingama-50 wemikhiqizo ye-lignin, kodwa kuze kube manje, ngaphezu kwe-95% ye-lignin isakhishwa ngokuqondile emifuleni noma emifuleni njenge " utshwala obumnyama”. Ngemva kokugxila, iyashiswa futhi ayivamile ukusetshenziswa ngokuphumelelayo. Ukuncipha okwandayo kwamandla ezinto ezimbiwa phansi, insada yemithombo ye-lignin, kanye nokuthuthukiswa okusheshayo kwesayensi ye-lignin kunquma intuthuko esimeme yezinzuzo zezomnotho ze-lignin.

Izindleko ze-lignin ziphansi, futhi i-lignin kanye nokuphuma kwayo kunemisebenzi ehlukahlukene, engasetshenziswa njengama-dispersants, ama-adsorbents/desorbers, izinsiza zokubuyisa i-petroleum, kanye nama-asphalt emulsifiers. Umnikelo obaluleke kakhulu we-lignin ekuthuthukisweni okusimeme komuntu usekuhlinzekeni ngomthombo ozinzile noqhubekayo wezinto eziphilayo, futhi ithemba layo lokusebenza libanzi kakhulu. Tadisha ubudlelwano phakathi kwezakhiwo nesakhiwo se-lignin, futhi usebenzise i-lignin ukwenza ama-polymer awonakaliswayo futhi avuseleleke kabusha. Izakhiwo ze-physicochemical, izakhiwo zokucubungula kanye nobuchwepheshe be-lignin sekuyizithiyo ocwaningweni lwamanje lwe-lignin.

I-Lignin sulfonate yenziwe nge-sulfite wood pulp lignin impahla eluhlaza ngokugxila, ukushintshwa, i-oxidation, ukuhlunga nokomisa. I-Chromium lignosulfonate ayinawo umphumela wokunciphisa ukulahlekelwa kwamanzi kuphela, kodwa futhi inomphumela wokuhlambulula. Ngesikhathi esifanayo, ibuye ibe nezici zokumelana nosawoti, ukumelana nokushisa okuphezulu nokuhambisana okuhle. Kuyi-diluent enokumelana nosawoti okuqinile, ukumelana ne-calcium nokumelana nezinga lokushisa. Imikhiqizo isetshenziswa kakhulu emanzini ahlanzekile, emanzini olwandle, nasezidakamizweni zikasimende ezinosawoti ogcwele, amadaka ahlukahlukene afakwe nge-calcium nodaka olujulile lwemithombo, olungamisa kahle udonga lomthombo futhi lunciphise i-viscosity kanye nokugunda kodaka.

Izinkomba zomzimba nezamakhemikhali ze-lignosulfonate:

1. Ukusebenza kuhlala kungashintshile ku-150~160℃ amahora ayi-16;

2. Ukusebenza kwe-2% ye-saltcement slurry kungcono kune-iron-chromium lignosulfonate;

3. Inamandla aqinile e-anti-electrolyte futhi ilungele zonke izinhlobo zodaka.

Lo mkhiqizo uhlanganiswe esikhwameni esilukiwe esihlanganiswe nesikhwama sepulasitiki, esinesisindo sokupakisha esingama-25 kg, futhi isikhwama sokupakisha sibhalwe igama lomkhiqizo, uphawu lokuhweba, isisindo somkhiqizo, umenzi namanye amagama. Imikhiqizo kufanele igcinwe endaweni yokugcina impahla ukuvimbela umswakama.