Ka hoʻohālikelike hoʻohālikelike o ka soda a me ka soda lehu

ʻOkoʻa mai ka lehu soda (sodium carbonate, Na2CO3) ʻoiai ua kapa ʻia ʻo ia he "alkali", akā pili maoli i ka hui kemika o ka paʻakai, a me ka soda caustic (sodium hydroxide, NaOH) he mea hiki ke hoʻoheheʻe ʻia i ka wai ikaika alkali, me ka corrosive ikaika a me ka hygroscopic. waiwai.Ua kapa ʻia ʻo Soda ash a me ka soda caustic "ʻelua alkalis industrial", ʻo ia mau mea ʻelua no ka paʻakai a me ka ʻoihana kemika.ʻOiai ʻokoʻa loa lākou mai kekahi i kekahi ma ke ʻano o ke kaʻina hana a me ke ʻano o ka huahana, ʻo ko lākou like ʻana i nā waiwai kemika e hoʻololi iā lākou i kekahi wahi ma kekahi mau wahi o lalo, a ʻo kā lākou kumukūʻai e hōʻike pū ana i ka pilina maikaʻi.

1. Nā hana hana likeʻole

ʻO ka soda caustic no ka waena waena o ke kaulahao ʻoihana chlor-alkali.Ua hoʻololi iki ʻia kāna ʻoihana hana e ka electrolysis mai ke ʻano caustic i ka hoʻomaka ʻana, a i ka hopena i hoʻololi ʻia i ke ʻano ionic membrane electrolysis o kēia manawa.Ua lilo ia i kumu nui o ka hana ʻana i ka soda caustic ma Kina, ʻoi aku ma mua o 99% o ka huina, a ua hui pū ʻia ke kaʻina hana.Hoʻokaʻawale ʻia ke kaʻina hana o ka lehu soda i loko o ke ʻano alkali alkali, hui ʻia ke ʻano alkali a me ke ʻano alkali maoli, kahi i helu ʻia ai ke ʻano o ka ammonia alkali no 49%, ʻo ke ʻano alkali hui pū ʻia he 46% a me ke ʻano alkali kūlohelohe ma kahi o 5%.Me ka hana ʻana o ka papahana Trona o Yuanxing Energy i ka makahiki aʻe, e hoʻonui ʻia ka nui o ka trona.ʻOkoʻa loa ke kumukūʻai a me ka loaʻa kālā o nā kaʻina hana like ʻole o ka soda lehu, a ʻo ia ka mea haʻahaʻa loa ke kumu kūʻai o trona.

2. Nā ʻano huahana like ʻole

ʻElua ʻano o ka ʻāpala hoʻoheheʻe maʻamau ma ka mākeke: ʻo ka soda wai a me ka soda paʻa.Hiki ke hoʻokaʻawale ʻia ka soda wai i 30% kumu wai, 32% kumu wai, 42% kumu wai, 45% kumu wai a me 50% kumu wai e like me ka hapa nui o ka sodium hydroxide.ʻO nā kikoʻī koʻikoʻi he 32% a me 50%.I kēia manawa, ʻoi aku ka nui o ka hoʻopuka ʻana o ka wai alkali ma mua o 80% o ka huina, a ʻo 99% ka soda caustic ma kahi o 14%.Hoʻokaʻawale ʻia ka lehu soda ma ka mākeke i ka alkali māmā a me ka alkali kaumaha, aia nā mea ʻelua i kahi kūlana paʻa a ʻike ʻia e like me ka density.ʻO ka nui nui o ka alkali māmā he 500-600kg / m3 a ʻo ka nui nui o ka alkali kaumaha he 900-1000kg / m3.He 50-60% ka alkali nui, e like me ka ʻokoʻa o ke kumukūʻai ma waena o nā mea ʻelua he 10% wahi hoʻoponopono.

3. Nā ʻano like ʻole a me nā ala o ka lawe ʻana

ʻOkoʻa nā ʻano ʻano kino like ʻole i ka soda caustic a me ka soda ash i ke ʻano o ka halihali a me ke ala.Hana ʻia ka lawe ʻana o ka wai alkali me ke kaʻa pahu kila kalapona maʻamau, ʻoi aku ka nui o ka wai alkali ma mua o 45% a i ʻole nā ​​​​koi koʻikoʻi kūikawā e pono e hana ʻia me ka nickel stainless steel tank truck, alkali hoʻohana maʻamau 25kg ʻekolu-layer plastic i ulana ʻia a i ʻole bakeke hao.He mea maʻalahi ka hoʻopaʻa ʻana a me ka mālama ʻana i ka lehu soda, a hiki ke hoʻopaʻa ʻia i loko o nā ʻeke i ulana ʻia ʻelua a me hoʻokahi.Ma ke ʻano he kemika weliweli wai, ʻo ka wai alkali kahi hana kūloko ikaika a kūʻai ʻia nā wahi kūʻai ma North a me Kina Hikina, ʻoiai ʻo ka hana alkali paʻa i hoʻopaʻa ʻia ma ke komohana ʻākau o Kina.ʻO ka wahi e hana ai i ka lehu soda, he mea koʻikoʻi ia, akā ʻo ka wahi kūʻai aku ua hoʻopuehu ʻia.Hoʻohālikelike ʻia me ka soda, ʻoi aku ka palena o ka halihali wai alkali, ʻoi aku ma mua o 300 mau kilomita i ke kaʻa.