He whakarewa ahumahi nui te Methylene Chloride, ā, ko tōna whanaketanga ahumahi me te rangahau pūtaiao he kaupapa nui e arohia ana. Ka whakamāramahia e tēnei tuhinga ōna whanaketanga hou mai i ngā āhuatanga e whā: te hanganga mākete, ngā āhuatanga ture, ngā ia o te utu, me te ahunga whakamua o te rangahau pūtaiao hou.
Hanganga MāketeHe tino kukū te mākete o te ao, ā, ko ngā kaihanga matua e toru (pērā i a Juhua Group, Lee & Man Chemical, me Jinling Group) e pupuri ana i te 33% o te hea mākete. Ko te rohe o Āhia-Moana-nui-a-Kiwa te mākete nui rawa atu, e 75% o te hea.
Ngā Āhuatanga Whakahaere:Kua whakaputa te Tari Tiaki Taiao o Amerika (EPA) i tētahi ture whakamutunga i raro i te Ture Whakahaere Matū Paitini (TSCA) e aukati ana i te whakamahinga o te methylene chloride i roto i ngā hua kaihoko pēnei i ngā mīhini tango peita, me te whakatakoto i ngā here tino kaha ki ngā whakamahinga ahumahi.
Ngā Auahatanga Utu: I te marama o Ākuhata 2025, nā te nui o ngā mahi a te umanga i hua ake ai te nui o te tuku, me te korenga o te wā tono me te korenga o te hihiri ki te hoko, i heke iho ngā utu a ētahi kaihanga i raro i te tohu 2000 RMB/tana.
Āhuatanga Tauhokohoko:Mai i Hānuere ki Mei 2025, i tino piki ake ngā kaweake methylene chloride a Haina (tau-ki-te-tau +26.1%), ko te nuinga i ahu atu ki Āhia ki te Tonga-mā-rāwhiti, Īnia, me ētahi atu rohe, ā, ka āwhina tēnei ki te whakaiti i te pēhanga tuku taonga ā-rohe.
Ngā Rohe o te Rangahau Hangarau Hou
I roto i te ao rangahau pūtaiao, kei te ahu whakamua ngā rangahau mō te methylene chloride me ngā matū e pā ana ki ngā huarahi matomato ake, whai hua ake hoki. Anei ētahi huarahi hei whakanui:
Ngā Tikanga Hanga Kakariki:I te marama o Āperira 2025, i whakaputahia e te rōpū rangahau o Te Whare Wānanga Hangarau o Shandong tētahi rangahau auaha, e whakaaro ana ki tētahi ariā hou o te "redox e akiakihia ana e te aukume." Ka whakamahia e tēnei hangarau tētahi papa aukume hurihuri hei whakaputa i tētahi kaha hiko i roto i tētahi kaiārahi whakarewa, ā, ka akiaki i ngā tauhohenga matū. Ko tēnei rangahau te tono tuatahi o tēnei rautaki i roto i te whakaterenga whakarewa whakawhiti, me te angitu ki te whakatutuki i te hononga whakawhiti whakaiti o ngā aryl chloride iti ake te tauhohenga me ngā alkyl chloride. Ka whakaratohia e tēnei he ara hou mō te whakahohe i ngā hononga matū kore mahi (pērā i ngā hononga C-Cl) i raro i ngā āhuatanga ngawari, me te kaha ki te tono whānui.
Te Arotau i te Tukanga Wehewehenga:I roto i te hanga matū, ko te wehenga me te purenga ngā mahi matua e whakapau kaha ana. Ko ētahi rangahau e aro ana ki te whakawhanake i ngā taputapu hou hei wehe i ngā ranunga tauhohenga mai i te hanganga methylene chloride. I tūhuratia e tēnei rangahau te whakamahi i te methanol hei tango-ā-ake hei wehe i ngā ranunga o te dimethyl ether-methyl chloride me te iti o te piki me te heke, me te whai kia pai ake te whai huatanga o te wehenga me te arotau i ngā tawhā tukanga.
Te Tūhura i ngā Taupānga i roto i ngā Pūnaha Whakarewa Hou:Ahakoa kāore i te whai wāhi tika ki te methylene chloride, he mea nui te rangahau mō ngā whakarewa hohonu eutectic (DES) i whakaputaina ki te PMC i te marama o Ākuhata 2025. I whakaratohia e tēnei rangahau he māramatanga hōhonu ki te āhua o ngā taunekeneke ngota i roto i ngā pūnaha whakarewa. Mā ngā whanaketanga o ēnei hangarau whakarewa matomato, i roto i te wā roa, ka taea e rātou te whakakapi i ētahi whakarewa waro tuku iho, tae atu ki te methylene chloride.
Hei whakarāpopototanga, kei roto te umanga methylene chloride i tētahi wā whakawhiti e tohuhia ana e ngā whai wāhitanga me ngā wero.
Ngā Weroe kitea nuitia ana i roto i ngā ture taiao e tino kaha haere ana (ina koa i ngā mākete pēnei i a Ūropi me te US) me te whakahekenga o te tono i muri mai i ētahi o ngā whakamahinga tuku iho (pēnei i ngā mīhini tango peita).
Ngā Whai WāhitangaHeoi, kei roto i te tono tonu i roto i ngā rāngai kāore anō kia kitea he whakakapinga tino tika (pēnei i ngā rongoā me te hanga matū). I te wā kotahi, ko te arotau tonu o ngā tukanga whakaputa me te whānui o ngā mākete kaweake kei te whakarato hoki i te hihiri mō te whanaketanga o te umanga.
Ko te whanaketanga ā muri ake nei e tika ana kia anga atu ki ngā hua motuhake he tino pai te mahi, he tino parakore, me ngā mahi auaha hangarau e hangai ana ki ngā mātāpono o te matū matomato.
Wā tuku: Hepetema-26-2025