Ka nānā 'ana o ka alumina ho'ā
Ua kapa ʻia ʻo alumina hoʻāla ʻia, ʻike ʻia hoʻi he bauxite hoʻāla ʻia ma ka ʻōlelo Pelekania. ʻO ka alumina i hoʻohana ʻia i nā catalysts ka mea maʻamau i kapa ʻia "alumina hoʻāla". He mea paʻa porous, hoʻopuehu nui ʻia me ka ʻili nui. Aia kona microporous ili i nā hiʻohiʻona e pono ai no ka catalysis, e like me ka hana adsorption, ka hana o ka ʻili, ke kūpaʻa wela maikaʻi loa, a me nā mea ʻē aʻe, no laila ua hoʻohana nui ʻia ʻo ia e like me ka catalyst a me ka catalyst carrier no nā hopena kemika.
ʻO ka spherical activated alumina pressure swing oil adsorbent he keʻokeʻo spherical porous particles. ʻO ka alumina i hoʻoulu ʻia he nui ka nui o ka ʻāpana, ka ʻili maʻemaʻe, ka ikaika mechanical kiʻekiʻe, ka hygroscopicity ikaika, ʻaʻole pehu a pohā ma hope o ka lawe ʻana i ka wai, a mau ʻole ka loli. ʻAʻohe mea ʻawaʻawa, ʻala ʻole, a hiki ʻole ke hoʻoheheʻe ʻia i ka wai a me ka ethanol.
alumina
ʻAʻole hiki ke hoʻoheheʻe ʻia i ka wai a hiki ke hoʻoheheʻe mālie i loko o ka ʻakika sulfuric concentrated. Hiki ke hoʻohana ʻia e hoʻomaʻemaʻe i ka alumini metala a he mea maka no ka hana ʻana i nā crucibles, porcelain, nā mea refractory a me nā pōhaku kiʻi.
ʻO ka alumina i hoʻohana ʻia ma ke ʻano he adsorbent, catalyst a me catalyst carrier ua kapa ʻia ʻo "alumina hoʻāla". Loaʻa iā ia nā hiʻohiʻona o ka porosity, ka hoʻopuehu kiʻekiʻe a me kahi ākea kikoʻī nui. Hoʻohana nui ʻia ia i ka mālama wai, petrochemical, kemika maikaʻi, biological a me nā lāʻau lapaʻau.
Nā ʻano o ka alumina
1. Nui kiko'ī kiko'ī 'āpana: ho'ā 'ia alumina he kiʻekiʻe kiko'ī ili wahi. Ma ka hoʻomalu pono ʻana i ka ʻōnaehana sintering o ka alumina, hiki ke hoʻomākaukau ʻia ka alumina i hoʻāla ʻia me kahi kiko kikoʻī e like me 360m2 / G. ʻO ka alumina hana i hoʻomākaukau ʻia e ka hoʻohana ʻana i ka colloidal alumini hydroxide decomposed e NaAlO2 ma ke ʻano he mea maka he liʻiliʻi liʻiliʻi ka nui o ka pore a me kahi ʻāpana kikoʻī e like me 600m2 / g.
2. Hiki ke hoʻoponopono ʻia ka nui o ka pore: ʻO ka mea maʻamau, hiki ke hoʻomākaukau ʻia nā huahana me ka nui o ka pore ma o ka kuke ʻana me ka alumini hydroxide maʻemaʻe. Hiki ke hoʻomākaukau ʻia nā huahana liʻiliʻi liʻiliʻi ma o ka hoʻomākaukau ʻana i ka alumina i hoʻāla ʻia me ke kolu alumini, a me nā mea ʻē aʻe ʻoiai hiki ke hoʻomākaukau ʻia ka nui pore nui alumina hoʻāla ʻia ma ka hoʻohui ʻana i kekahi mau mea kūlohelohe, e like me ka ethylene glycol a me ka fiber, ma hope o ka puhi ʻana.
3. He ʻakika ka ʻili a he kūpaʻa wela maikaʻi.
Ka hana o ka alumina i ho'ā
ʻO ka alumina hoʻoikaika ʻia no ka ʻāpana o ka alumina kemika, ka mea i hoʻohana nui ʻia e like me adsorbent, hoʻomaʻemaʻe wai, catalyst a me ka mea lawe catalyst. Hiki i ka alumina ho'ā ke koho koho i ka wai i loko o ke kinoea, ka mahu wai a me kekahi mau wai. Ma hope o ka piha ʻana o ka adsorption, hiki ke hoʻomehana ʻia ma kahi o 175-315. D egree. Hiki ke hoʻokō ʻia ka adsorption a me ka reactivation i nā manawa he nui.
Ma waho aʻe o ka hoʻohana ʻia ʻana ma ke ʻano he desiccant, hiki iā ia ke hoʻomoʻi i ka ʻaila lubricating mai ka oxygen contaminated, hydrogen, carbon dioxide, natural gas, etc.
Hiki ke hoʻohana ʻia ma ke ʻano he defluorinating agent no ka wai inu fluorine kiʻekiʻe (me ka mana defluorinating nui), he mea hoʻopau defluorinating no ka holo ʻana i nā alkanes i ka hana ʻana o ka alkylbenzene, kahi deacidifying a regenerating agent no ka ʻaila transformer, kahi mea hoʻomaloʻo no ke kinoea i ka ʻoihana hana oxygen. , 'oihana textile a me ka 'oihana uila, he mea ho'omalo'o no ka ea mea kani 'akomi, a me ka mea ho'omalo'o a me ka mea ho'oma'ema'e i loko o ka fertilizer kemikala, petrochemical malo'o a me nā 'oihana'ē a'e.
Ka manawa hoʻouna: Jun-01-2022
