Titanium dioxide ke eng?
Karolo e ka sehloohong ea titanium dioxide ke TIO2, e leng pigment ea bohlokoa ea lik'hemik'hale ka sebōpeho sa 'mala o mosoeu kapa phofo. Ha e na chefo, e na le bosoeu bo phahameng le khanya, 'me e nkoa e le pigment e ntle ka ho fetisisa e tšoeu bakeng sa ho ntlafatsa bosoeu ba thepa. E sebelisoa haholo liindastering tse kang liaparo, polasetiki, rabara, pampiri, enke, ceramics, khalase, joalo-joalo.
Ⅰ.Setšoantšo sa ketane ea indasteri ea Titanium dioxide:
（1）Tlhaloso e holimo ea ketane ea indasteri ea titanium dioxide e na le lisebelisoa tse tala, ho kenyeletsoa ilmenite, concentrate ea titanium, rutile, joalo-joalo;
（2）Bohareng ba metsi ho bolela lihlahisoa tsa titanium dioxide.
(3) Karolo e ka tlaase ke sebaka sa ts'ebeliso ea titanium dioxide.Titanium dioxide e sebelisoa haholo libakeng tse fapaneng tse kang liphahlo, polasetiki, ho etsa pampiri, enke, rabara, joalo-joalo.
Ⅱ. Sebopeho sa kristale ea titanium dioxide:
Titanium dioxide ke mofuta oa motsoako oa polymorphous, o nang le mefuta e meraro e tloaelehileng ea kristale ka tlhaho, e leng anatase, rutile le brookite.
Ka bobeli rutile le anatase ke tsa tetragonal crystal system, tse tsitsitseng tlas'a mocheso o tloaelehileng; Brookite ke ea orthorhombic crystal system, e nang le sebopeho se sa tsitsang sa kristale, ka hona ha e na boleng bo sebetsang indastering hajoale.
Har'a mehaho e meraro, karolo ea rutile ke eona e tsitsitseng ka ho fetisisa. Karolo ea Anatase e tla fetoha ka mokhoa o ke keng oa fetoloa ho ba karolo ea rutile ka holimo ho 900 ° C, ha karolo ea brookite e tla fetoha ka mokhoa o ke keng oa fetoloa ho ba karolo ea rutile ka holimo ho 650 ° C.
(1) Rutile phase titanium dioxide
Karolong ea rutile titanium dioxide, liathomo tsa Ti li bohareng ba lesela la kristale, 'me liathomo tse tšeletseng tsa oksijene li lihukung tsa octahedron ea oksijene ea titanium. Octahedron e 'ngoe le e' ngoe e hokahane le li-octahedron tse 10 tse potolohileng (ho kenyeletsoa li-vertices tse robeli tse arolelanoang le likarolo tse peli tse arolelanang), 'me limolek'hule tse peli tsa TiO2 li etsa sele e le 'ngoe.
Setšoantšo sa moralo oa kristale sele ea rutile phase titanium dioxide (ka ho le letšehali)
Mokhoa oa ho hokahanya oa titanium oxide octahedron (ka ho le letona)
(2) Anatase phase titanium dioxide
Mokhahlelong oa anatase titanium dioxide, octahedron e 'ngoe le e' ngoe ea titanium-oksijene e hokahane le li-octahedron tse 8 tse potolohileng (liphahlo tse 4 tse arolelanang le li-vertices tse 4 tse arolelanang), 'me limolek'hule tse 4 tsa TiO2 li etsa sele e le 'ngoe.
Setšoantšo sa moralo oa kristale sele ea rutile phase titanium dioxide (ka ho le letšehali)
Mokhoa oa ho hokahanya oa titanium oxide octahedron (ka ho le letona)
Ⅲ. Mekhoa ea ho Lokisetsa ea Titanium Dioxide:
Ts'ebetso ea tlhahiso ea titanium dioxide haholo-holo e kenyelletsa ts'ebetso ea sulfuric acid le ts'ebetso ea chlorination.
(1) Ts'ebetso ea sulfuric acid
Tshebetso ea sulfuric acid ea tlhahiso ea titanium dioxide e kenyelletsa karabelo ea acidolysis ea titanium iron powder le concentrated sulfuric acid ho hlahisa titanium sulfate, eo ka nako eo e leng hydrolyzed ho hlahisa metatanic acid. Ka mor'a ho calcination le ho senya, lihlahisoa tsa titanium dioxide li fumanoa. Mokhoa ona o ka hlahisa anatase le rutile titanium dioxide.
(2) Ts'ebetso ea chlorination
Ts'ebetso ea chlorination ea tlhahiso ea titanium dioxide e kenyelletsa ho kopanya rutile kapa high-titanium slag phofo le coke ebe o etsa chlorination e phahameng ea mocheso ho hlahisa titanium tetrachloride. Ka mor'a hore ho be le oxidation ea mocheso o phahameng, sehlahisoa sa titanium dioxide se fumanoa ka ho sefa, ho hlatsoa metsi, ho omisa le ho silakanya. Ts'ebetso ea chlorination ea tlhahiso ea titanium dioxide e ka hlahisa lihlahisoa tsa rutile feela.
Joang ho khetholla bonnete ba titanium dioxide?
I. Mekhoa ea 'Mele:
（1）Mokhoa o bonolo ka ho fetisisa ke ho bapisa sebopeho ka ho ama. Titanium dioxide ea fake e ikutloa e le boreleli, ha titanium dioxide ea 'nete e ikutloa e le thata ho feta.
（2）Ka ho hlatsoa ka metsi, haeba u tšela titanium dioxide letsohong la hao, ho bonolo ho hlatsoa ea fake, ha ea sebele ho se bonolo ho e hlatsoa.
（3）Nka kopi ea metsi a hloekileng 'me u lahlele titanium dioxide ho eona. E phaphametseng ka holim'a metsi ke ea 'nete, ha e lutseng ka tlase ke fake (mokhoa ona o ka' na oa se ke oa sebetsa bakeng sa lihlahisoa tse entsoeng kapa tse fetotsoeng).
（4）Hlahloba ho qhibiliha ha eona metsing. Ka kakaretso, titanium dioxide e qhibiliha ka metsing (ntle le titanium dioxide e etselitsoeng ka ho khetheha lipolasetiki, li-inks, le tse ling tsa maiketsetso tsa titanium dioxide, tse sa qhibiliheng metsing).
II. Mekhoa ea lik'hemik'hale:
(1) Haeba phofshoana ea khalsiamo e eketsoa: Ho eketsa hydrochloric acid ho tla baka karabelo e matla ka molumo o hlabang, o tsamaeang le tlhahiso ea palo e kholo ea li-bubble (hobane calcium carbonate e arabela ka acid ho hlahisa carbon dioxide).
(2) Haeba lithopone li eketsoa: Ho eketsa sulfuric acid kapa hydrochloric acid ho tla hlahisa monko o bolileng oa lehe.
(3) Haeba sampuli e le hydrophobic, ho eketsa hydrochloric acid ho ke ke ha baka karabelo. Leha ho le joalo, ka mor'a ho e kolobisa ka ethanol ebe o eketsa hydrochloric acid, haeba ho hlahisoa li-bubble, e paka hore sampuli e na le phofo ea calcium carbonate e koahetsoeng.
III. Ho boetse ho na le mekhoa e meng e 'meli e metle:
(1) Ka ho sebelisa mokhoa o tšoanang oa PP + 30% GF + 5% PP-G-MAH + 0.5% titanium dioxide phofo, matla a tlaase a thepa e hlahisoang ke, ho feta 'nete ea titanium dioxide (rutile).
(2) Khetha resin e bonaletsang, joalo ka ABS e bonaletsang le 0.5% titanium dioxide phofo e kenyellelitsoeng. Lekanya phetiso ea khanya ea eona. Ha phetisetso ea leseli e le tlase, phofo ea titanium dioxide ke ea 'nete.
Nako ea poso: May-31-2024
