Diatomite imhando yedombo resiliceous, rinonyanya kugoverwa muChina, United States, Japan, Denmark, France, Romania nedzimwe nyika.Iyo biogenic siliceous sedimentary dombo, inonyanya kuumbwa nemasara ekare diatoms.Chimiro chayo chemakemikari inonyanya kuSiO2, iyo inogona kuratidzwa seSiO2 · nH2O, uye maminerari ayo ekugadzirisa ndeye opal uye marudzi ayo.Nzvimbo dzakachengetwa dzediatomite muChina i320 miriyoni matani, uye inotarisirwa kuchengetedza inodarika mabhiriyoni maviri ematani.

Density ye diatomite ndeye 1.9-2.3g/cm3, iyo yakawanda density i 0.34-0.65g/cm3, iyo chaiyo nzvimbo i40-65 ㎡/g, uye vhoriyamu pore i 0.45-0.98m ³/ g.Kunyura kwemvura ndeye 2-4 nguva yehuwandu hwayo, uye nzvimbo yekunyunguduka ndeye 1650C-1750 ℃.Iyo yakakosha porous chimiro inogona kucherechedzwa pasi pe electron microscope.

Diatomite inoumbwa neamorphous SiO2 uye ine zvishoma zveFe2O3, CaO, MgO, Al2O3 uye organic tsvina.Diatomite inowanzoreruka yero kana kuti grey, yakapfava, ine porous uye yakareruka.Inowanzoshandiswa mumaindasitiri semafuta ekupisa, sefa zvinhu, kuzadza, abrasive zvinhu, girazi remvura raw material, decolorizing agent, diatomite filter aid, catalyst carrier, etc. Chikamu chikuru chezvisikwa diatomite iSiO2.Iyo yepamusoro-soro diatomite ichena, uye zvinyorwa zveSiO2 zvinowanzopfuura 70%.Monomer diatoms haina ruvara uye yakajeka.Muvara we diatomite unoenderana nemaminerari evhu uye organic matter, etc. Kuumbwa kwe diatomite kubva kune zvakasiyana-siyana zvicherwa zvakasiyana.

Diatomite imhando yefossil diatom accumulative ivhu dhipoziti yakaumbwa mushure mekufa kwechirimwa chine sero rimwe chete chinonzi diatom mushure menguva yekuunganidza makore angangoita 10000 kusvika 20000.Diatom ndeimwe yeprotozoa yekutanga pasi pano, inogara mumvura yegungwa kana yegungwa.

Iyi diatomite inoumbwa nekuiswa kwezvakasara zve single-celled aquatic plant diatom.Iyo yakasarudzika kuita kweiyi diatom ndeyekuti inogona kutora yemahara silicon mumvura kuti igadzire skeleton yayo.Kana hupenyu hwayo hwapera, inoisa uye kugadzira diatomite deposits pasi pemamwe mamiriro e geological.Iyo ine zvimwe zvakasarudzika zvimiro, senge porosity, yakaderera concentration, hombe chaiyo nzvimbo, hukama incompressibility uye kugadzikana kwemakemikari.Mushure mekushandura saizi yekugovera saizi uye zvimiro zvepasi pevhu rakasvibira kuburikidza nekukuya, kuronga, calcination, kuyerera kwemhepo, kubviswa kwetsvina uye mamwe maitiro ekugadzirisa, inogona kuiswa kune akasiyana maindasitiri zvinodiwa senge pendi zvinowedzera.