Dongo lopangidwa ndi dongo ndi adsorbent yopangidwa kuchokera ku dongo (makamaka bentonite) ngati zopangira, zomwe zimathandizidwa ndi inorganic acidification, mchere kapena njira zina, kenako zimatsukidwa ndikuwumitsa ndi madzi.Ili ndi mawonekedwe a ufa woyera wamkaka, osanunkhiza, osanunkhiza, opanda poizoni, ndipo imakhala ndi mphamvu zotsatsa.Iwo akhoza adsorb wachikuda ndi organic zinthu.Ndizosavuta kuyamwa chinyezi mumlengalenga, ndikuchiyika kwa nthawi yayitali kumachepetsa magwiridwe antchito a adsorption.Mukamagwiritsa ntchito, ndi bwino kutentha (makamaka pa 80-100 digiri Celsius) kuti mutsitsimuke.Komabe, kutentha pamwamba pa madigiri 300 Celsius kumayamba kutaya madzi a crystalline, kuchititsa kusintha kwapangidwe komanso kusokoneza zotsatira zake.Dongo adamulowetsa ndi insoluble m'madzi, zosungunulira organic, ndi mafuta osiyanasiyana, pafupifupi kwathunthu sungunuka otentha caustic koloko ndi asidi hydrochloric, ndi kachulukidwe wachibale wa 2.3-2.5, ndi kutupa kochepa m'madzi ndi mafuta.

Dongo loyera lopangidwa mwachilengedwe lomwe limapangidwa ndi blekning ndi dongo loyera, lotuwa lopangidwa makamaka ndi montmorillonite, albite, ndi quartz, ndipo ndi mtundu wa bentonite.

Makamaka chopangidwa ndi kuwonongeka kwa magalasi kuphulika miyala, amene sakulitsa pambuyo kuyamwa madzi, ndi pH mtengo wa kuyimitsidwa ndi wosiyana ndi zamchere bentonite;Kuchita kwake koyera ndi koyipa kwambiri kuposa dongo lomwe limagwira ntchito.Mitunduyo nthawi zambiri imakhala yachikasu chowala, yobiriwira yoyera, imvi, ya azitona, yofiirira, yoyera yamkaka, yofiira pichesi, yabuluu, ndi zina zambiri. Pali zoyera zochepa kwambiri.Kachulukidwe 2.7-2.9g/cm.Kachulukidwe kowoneka bwino nthawi zambiri amakhala otsika chifukwa cha porosity yake.Mapangidwe a mankhwala ndi ofanana ndi dongo wamba, ndi zigawo zikuluzikulu za mankhwala ndi aluminium oxide, silicon dioxide, madzi, ndi chitsulo chochepa, magnesium, calcium, etc. Palibe pulasitiki, yokhala ndi mphamvu zambiri.Chifukwa cha kuchuluka kwake kwa hydrous silicic acid, imakhala acidic ku litmus.Madzi amatha kusweka ndipo amakhala ndi madzi ambiri.Nthawi zambiri, kung'ambika bwino, kumapangitsanso mphamvu ya decolorization.

Poyesa kuwunika kwabwino panthawi yowunikira, ndikofunikira kuyeza momwe ntchito yake ikuyendera, acidity, kusefera, kuyamwa kwamafuta, ndi zinthu zina.