Tsiku Lotumiza:28,Mar,2022

Lignin ndi yachiwiri kwa cellulose m'malo osungirako zachilengedwe, ndipo amapangidwanso pamlingo wa matani 50 biliyoni chaka chilichonse. Makampani opanga zamkati ndi mapepala amalekanitsa pafupifupi matani 140 miliyoni a cellulose ku zomera chaka chilichonse, ndipo amapeza pafupifupi matani 50 miliyoni a zinthu zopangidwa ndi lignin, koma mpaka pano, oposa 95% a lignin amatulutsidwabe mwachindunji mumitsinje kapena mitsinje monga " mowa wakuda". Pambuyo poyikirapo, amawotchedwa ndipo sagwiritsidwa ntchito mogwira mtima. Kuchuluka kwa kuchepa kwa mphamvu zamafuta, nkhokwe zambiri za lignin, komanso kukula kwachangu kwa sayansi ya lignin kumatsimikizira chitukuko chokhazikika cha phindu lazachuma la lignin.

Mtengo wa lignin ndi wochepa, ndipo lignin ndi zotuluka zake zimakhala ndi ntchito zosiyanasiyana, zomwe zingagwiritsidwe ntchito ngati dispersants, adsorbents / desorbers, petroleum recovery aids, ndi asphalt emulsifiers. Chothandizira chofunikira kwambiri cha lignin pachitukuko chokhazikika cha anthu chagona mu Kupereka gwero lokhazikika komanso lopitilira la zinthu zachilengedwe, ndipo chiyembekezo chake chogwiritsa ntchito ndi chotakata kwambiri. Phunzirani mgwirizano pakati pa katundu wa lignin ndi kapangidwe kake, ndikugwiritsa ntchito lignin kupanga ma polima owonongeka komanso ongowonjezwdwa. Ma physicochemical properties, processing properties ndi teknoloji ya lignin akhala zolepheretsa kafukufuku wamakono wa lignin.

Lignin sulfonate amapangidwa kuchokera ku sulfite nkhuni zamkati lignin zopangira kudzera mu ndende, m'malo, makutidwe ndi okosijeni, kusefera ndi kuyanika. Chromium lignosulfonate sikuti imangokhala ndi zotsatira zochepetsera kutaya kwa madzi, komanso imakhala ndi diluting effect. Panthawi imodzimodziyo, imakhalanso ndi zizindikiro za kukana mchere, kutentha kwapamwamba komanso kuyanjana kwabwino. Ndi diluent ndi mphamvu mchere kukana, calcium kukana ndi kutentha kukana. Zogulitsazo zimagwiritsidwa ntchito kwambiri m'madzi amchere, m'madzi am'nyanja, ndi matope a simenti odzaza mchere, matope osiyanasiyana okhala ndi calcium komanso matope ozama kwambiri, omwe amatha kukhazikika khoma lachitsime ndikuchepetsa kukhuthala ndi kukameta matope.

Zizindikiro zakuthupi ndi zamankhwala za lignosulfonate:

1. Ntchitoyi imakhalabe yosasinthika pa 150 ~ 160 ℃ kwa maola 16;

2. Kuchita kwa 2% mchere simenti slurry ndi bwino kuposa chitsulo-chromium lignosulfonate;

3. Ili ndi mphamvu yotsutsa-electrolyte ndipo ndi yoyenera pamatope amitundu yonse.

Izi zimayikidwa mu thumba lopangidwa ndi thumba la pulasitiki, lolemera makilogalamu 25, ndipo thumba loyikamo liri ndi dzina la mankhwala, chizindikiro, kulemera kwa mankhwala, wopanga ndi mawu ena. Zogulitsa ziyenera kusungidwa m'nyumba yosungiramo zinthu kuti zisawonongeke.