Ko te BDO, e mōhiotia ana ko te 1,4-butanediol, he rauemi mata matū rauropi me te matū pai. Ka taea te whakarite i te BDO mā te tikanga acetylene aldehyde, te tikanga maleic anhydride, te tikanga propylene alcohol, me te tikanga butadiene. Ko te tikanga acetylene aldehyde te tikanga ahumahi matua mō te whakarite i te BDO nā te utu me ngā painga o te tukanga. Ka whakakōpirihia tuatahitia te acetylene me te formaldehyde hei whakaputa i te 1,4-butynediol (BYD), ka whakahauwaihia anō kia whiwhi ai i te BDO.
I raro i te pēhanga teitei (13.8~27.6 MPa) me ngā āhuatanga o te 250~350 ℃, ka tauhohe te acetylene ki te formaldehyde i te aroaro o tētahi whakakorikori (ko te tikanga he acetylene kapurous me te bismuth i runga i te tautoko silica), kātahi ka whakahauwaihia te takawaenga 1,4-butynediol ki te BDO mā te whakamahi i tētahi whakakorikori nickel Raney. Ko te āhuatanga o te tikanga matarohia ko te kore e hiahiatia kia wehea te whakakorikori me te hua, ā, he iti te utu whakahaere. Heoi, he nui te pēhanga wāhanga o te acetylene, ā, he mōrearea te pahū. Ko te tauwehenga haumaru o te hoahoa tauhohenga he teitei ki te 12-20 ngā wā, ā, he nui, he utu nui hoki ngā taputapu, ka hua ake he haumi nui; Ka whakapūmau te acetylene ki te whakaputa polyacetylene, ka whakakore i te whakakorikori me te aukati i te paipa, ka hua ake he huringa whakaputa poto me te putanga iti.
Hei whakautu i ngā ngoikoretanga me ngā ngoikoretanga o ngā tikanga tuku iho, i arotauhia ngā taputapu tauhohenga me ngā whakakorikori o te pūnaha tauhohenga hei whakaiti i te pēhanga ā-wāhanga o te acetylene i roto i te pūnaha tauhohenga. Kua whānuitia te whakamahinga o tēnei tikanga i roto i te motu me te ao whānui. I taua wā anō, ka mahia te hanga BYD mā te whakamahi i te moenga paru, i te moenga iri rānei. Mā te tikanga acetylene aldehyde ka puta te BDO mā te hauwai BYD, ā, i tēnei wā ko ngā tukanga ISP me INVISTA ngā mea e whakamahia whānuitia ana i Haina.
① Te hanga o te butynediol mai i te acetylene me te formaldehyde mā te whakamahi i te whakakorikori parahi kāponāte
I te whakamahinga o te tukanga BDO i roto i te INVIDIA, ka tauhohe te formaldehyde ki te acetylene hei hanga i te 1,4-butynediol i raro i te mahi a te whakakorikori parahi waro. Ko te pāmahana tauhohenga he 83-94 ℃, ā, ko te pēhanga he 25-40 kPa. He ahua paura kakariki te āhua o te whakakorikori.
② Whakakōkī mō te whakahāoratanga o te butynediol ki te BDO
Ko te wāhanga hauwai o te tukanga he mea hanga mai i ngā tauhohenga moenga pumau pēhanga-teitei e rua e honoa raupapa ana, ā, 99% o ngā tauhohenga hauwai i oti i te tauhohenga tuatahi. Ko ngā whakakorikori hauwai tuatahi me te tuarua he koranu konumohe nikara kua whakahohehia.
Ko te nikara Renee moenga pumau he poraka konumohe nikara, he rahi matūriki kei waenga i te 2-10mm, he kaha teitei, he ātete pai ki te kakahu, he whānui te horahanga mata motuhake, he pai ake te pumau o te whakakorikori, ā, he roa te ora mahi.
He hina-mā te tae o ngā matūriki nikara Raney moenga pumau kāore i whakahohehia, ā, i muri i te tangohanga o te kawakore wai i roto i tētahi kukū, ka huri hei matūriki pango, hina mangu rānei, e whakamahia ana i roto i ngā tauhohenga moenga pumau.
① He whakakorikori tautokona parahi mō te hanga o te butynediol mai i te acetylene me te formaldehyde
I raro i te mahi a te whakakorikori parahi bismuth tautokona, ka tauhohe te formaldehyde ki te acetylene hei whakaputa i te 1,4-butynediol, i te pāmahana tauhohenga o te 92-100 ℃ me te pēhanga o te 85-106 kPa. Ka puta te whakakorikori hei paura pango.
② Whakakōkī mō te whakahāoratanga o te butynediol ki te BDO
E rua ngā wāhanga o te hauwai i roto i te tukanga ISP. Ko te wāhanga tuatahi ko te whakamahi i te paura nikara konumohe hei whakakorikori, ā, ko te hauwai pēhanga iti ka huri i te BYD ki te BED me te BDO. I muri i te wehenga, ko te wāhanga tuarua ko te hauwai pēhanga teitei mā te whakamahi i te nikara utaina hei whakakorikori hei huri i te BED ki te BDO.
Whakakōkī hauwai tuatahi: whakakōkī nikara Raney paura
Whakakōkī hauwai tuatahi: Whakakōkī nikara Raney paura. Ka whakamahia nuitia tēnei whakakōkī i roto i te wāhanga hauwai pēhanga-iti o te tukanga ISP, mō te whakarite i ngā hua BDO. He āhuatanga ōna ko te kaha teitei, te whiriwhiri pai, te tere tahuritanga, me te tere taunga tere. Ko ngā wāhanga matua ko te nikara, te konumohe, me te molibdenum.
Whakakōkī hauwai tuatahi: whakakōkī hauwai paura nikara konumohe koranu
Me nui te kaha o te whakakorikori, me nui te tere tahuritanga o te 1,4-butynediol, ā, me iti ake ngā hua taha.
Whakakōkī hauwai tuarua
He whakakorikori tautokona tēnei me te alumina hei kawe, me te nikara me te parahi hei wāhanga hohe. Ka rongoatia te āhua whakaheke ki roto i te wai. He kaha miihini teitei te whakakorikori, he iti te ngaronga waku, he pai te pumau matū, ā, he ngāwari ki te whakahohe. He āhua kowhai pango te āhua o ngā matūriki.
Ngā Take Whakamahinga o ngā Whakakōkī
Whakamahia mō te BYD hei whakaputa i te BDO mā te whakahauwai i te matū whakakorikori, ka whakamahia ki tētahi waeine BDO 100,000 tana. E rua ngā huinga tauhohenga moenga pumau e mahi tahi ana, ko tētahi he JHG-20308, ā, ko tētahi he matū whakakorikori kawemai.
Te Tātaritanga: I te wā o te tātaritanga o te paura angiangi, i kitea he iti ake te paura angiangi i puta mai i te whakakōkī moenga pumau JHG-20308 i tērā i te whakakōkī kawemai.
Whakahohenga: Whakaoho Whakaoho Whakakōkī Whakamutunga: He rite tonu ngā āhuatanga whakahohenga o ngā whakakōkī e rua. Mai i ngā raraunga, he tino ōrite te tere o te whakakorenga, te rerekētanga pāmahana tomo me te putanga, me te tukunga wera tauhohenga whakahohenga o te koranu i ia wāhanga o te whakahohenga.
Pāmahana: Kāore i te tino rerekē te pāmahana tauhohenga o te whakakorikori JHG-20308 i tērā o te whakakorikori kawemai, engari e ai ki ngā ine pāmahana, he pai ake te mahi a te whakakorikori JHG-20308 i te whakakorikori kawemai.
Ngā poke: Mai i ngā raraunga kitenga o te otinga mata BDO i te wāhanga tōmua o te tauhohenga, he iti ake te poke o te JHG-20308 i roto i te hua kua oti ki te whakataurite ki ngā whakakorikori kawemai, ko te nuinga o tēnei e kitea ana i roto i te ihirangi o te n-butanol me te HBA.
I te nuinga o te wā, he pumau te mahi a te whakakōkī JHG-20308, kāore he hua taha teitei e kitea ana, ā, he rite tonu, he pai ake rānei tana mahi i tērā o ngā whakakōkī kawemai.
Te tukanga whakaputa o te whakakorikori konumohe nikara moenga pumau
(1) Te whakarewa: Ka whakarewaina te koranu konumohe nikara i te pāmahana teitei, kātahi ka hangaia kia āhua rite.
(2) Te kuru: Ka kuruhia ngā poraka koranu kia ririki mā roto i ngā taputapu kuru.
(3) Tātaritanga: Te tātari i ngā matūriki me te rahi matūriki kua tohua.
(4) Whakahohenga: Whakahaerehia tētahi kukū me te tere rere o te kawakore wai hei whakahohe i ngā matūriki i roto i te pourewa tauhohenga.
(5) Ngā tohu tirotiro: te nui o te konganuku, te tohatoha rahi o te matūriki, te kaha kuru pēhanga, te kiato papatipu, me ētahi atu.
Wā tuku: Hepetema-11-2023
