Dziko la Diatomaceous ndi mtundu wa miyala ya siliceous yomwe imafalikira makamaka m'maiko monga China, United States, Japan, Denmark, France, Romania, ndi zina zotero. Ndi mwala wa siliceous sedimentary womwe umapangidwa makamaka ndi zotsalira za ma diatoms akale. Mankhwala ake ndi SiO2, yomwe ingayimiridwe ndi SiO2 · nH2O, ndipo mchere wake ndi opal ndi mitundu yake. Malo osungiramo dziko la diatomaceous ku China ndi matani 320 miliyoni, okhala ndi malo osungiramo matani opitilira 2 biliyoni, makamaka ku East China ndi Kumpoto chakum'mawa kwa China. Pakati pawo, Jilin (54.8%, pomwe Linjiang City ku Jilin Province ndiye malo oyamba ku Asia), Zhejiang, Yunnan, Shandong, Sichuan, ndi madera ena ali ndi malo ambiri opezeka, koma nthaka yabwino kwambiri imapezeka m'dera la Changbai Mountain ku Jilin, ndipo malo ena ambiri amchere ndi nthaka ya kalasi 3-4. Chifukwa cha kuchuluka kwa zinthu zodetsedwa, sizingakonzedwe ndikugwiritsidwa ntchito mwachindunji. Gawo lalikulu la dziko la diatomaceous ngati chonyamulira ndi SiO2. Mwachitsanzo, gawo logwira ntchito la industrial vanadium catalyst ndi V2O5, co catalyst ndi alkali metal sulfate, ndipo chonyamuliracho ndi diatomaceous earth yoyengedwa. Mayesero asonyeza kuti SiO2 imakhala ndi mphamvu yokhazikika pa zigawo zogwira ntchito ndipo imawonjezeka ndi kuchuluka kwa K2O kapena Na2O. Ntchito ya catalyst imagwirizananso ndi kufalikira ndi kapangidwe ka pore ya chonyamuliracho. Pambuyo pochiza acid ya diatomaceous earth, kuchuluka kwa oxide cleanses kumachepa, kuchuluka kwa SiO2 kumawonjezeka, ndipo malo enieni ndi kuchuluka kwa pore kumawonjezekanso. Chifukwa chake, mphamvu ya chonyamulira cha diatomaceous earth yoyengedwa ndi yabwino kuposa ya diatomaceous earth yachilengedwe.

Dziko la Diatomaceous nthawi zambiri limapangidwa kuchokera ku zotsalira za silicate pambuyo poti algae yokhala ndi selo limodzi yafa, yomwe imadziwika kuti diatoms, ndipo thunthu lake ndi SiO2 yopanda mawonekedwe amadzi. Diatoms zimatha kukhalabe m'madzi oyera komanso amchere, okhala ndi mitundu yosiyanasiyana. Kawirikawiri zimatha kugawidwa m'magulu awiri: diatoms za "central order" ndi diatoms za "feathered order", ndipo dongosolo lililonse lili ndi "genera" zambiri zomwe zimakhala zovuta kwambiri.

Gawo lalikulu la dziko lachilengedwe la diatomaceous ndi SiO2, ndipo lapamwamba kwambiri lili ndi mtundu woyera ndipo SiO2 nthawi zambiri imakhala ndi 70%. Ma diatomu amodzi ndi opanda mtundu komanso owonekera, ndipo mtundu wa dziko la diatomaceous umadalira mchere wa dongo ndi zinthu zachilengedwe. Kapangidwe ka dziko la diatomaceous kuchokera kuzinthu zosiyanasiyana za mchere zimasiyana.

Dziko la Diatomaceous, lomwe limadziwikanso kuti diatom, ndi malo osungiramo zinthu zakale omwe amapangidwa pambuyo pa imfa ya chomera chimodzi chomwe chili ndi selo limodzi ndipo nthawi yosungiramo zinthu imakhala pafupifupi zaka 10000 mpaka 20000. Ma Diatoms anali amodzi mwa zamoyo zoyambirira kwambiri zomwe zinapezeka padziko lapansi, zomwe zimakhala m'madzi a m'nyanja kapena m'madzi a m'nyanja.

Mtundu uwu wa dziko lapansi la diatomaceous umapangidwa ndi kusungidwa kwa zotsalira za ma diatoms a zomera zam'madzi zokhala ndi selo limodzi. Ntchito yapadera ya diatom iyi ndi yakuti imatha kuyamwa silicon yaulere m'madzi kuti ipange mafupa ake. Moyo wake ukatha, imayika ndikupanga ma diatomaceous earth pansi pa mikhalidwe ina ya geological. Ili ndi zinthu zina zapadera, monga porosity, kuchepa kwa kuchuluka, malo akuluakulu apadera, kusasinthasintha, komanso kukhazikika kwa mankhwala. Pambuyo posintha kukula kwa tinthu tating'onoting'ono ndi mawonekedwe a pamwamba pa nthaka yoyambirira kudzera mu procNjira zoyesera monga kuphwanya, kusanja, kuyika calcination, kugawa mpweya, ndi kuchotsa zodetsa, zitha kukhala zoyenera pazinthu zosiyanasiyana zamafakitale monga zokutira ndi zowonjezera utoto.