Dzina lazogulitsaKenako: Calcium carbide
Mtundu wa Molecular:C2Ca
CAS No:75-20-7
Kapangidwe kazinthu zama cell:
Calcium carbide (chilinganizo cha molekyulu: CaC2), ndi mtundu wa zinthu zofunika kwambiri zopangira mankhwala opangidwa kuchokera ku mankhwala a miyala yamchere.Mu 1892, H. Maysan (Chifalansa) ndi H. Wilson (United States) adapanga njira yopangira calcium carbide pogwiritsa ntchito Kuchepetsa ng'anjo.Dziko la United States linali litapeza bwino kupanga mafakitale mu 1895. Katundu wa calcium carbide amakhudzana ndi chiyero chake.Mafakitale ake nthawi zambiri amakhala osakaniza a calcium carbide ndi calcium oxide, komanso amakhala ndi sulfure, phosphorous, nayitrogeni ndi zonyansa zina.Ndi kuchuluka kwa zonyansa, mtundu ukuwonetsa imvi, bulauni mpaka wakuda.Malo osungunuka ndi mphamvu zamagetsi zonse zimachepa ndi kuchepa kwa chiyero.Kuyera kwa mafakitale ake nthawi zambiri kumakhala 80% ndi mp kukhala 1800 ~ 2000 °C.Kutentha kwa chipinda, sichimafanana ndi mpweya, koma imatha kukhala ndi oxidation reaction pamwamba pa 350 ℃, ndipo imakhudzidwa ndi nayitrogeni pa 600 ~ 700 ℃ kuti ipange calcium cyanamide.Calcium carbide, ikadutsa ndi madzi kapena nthunzi, imapanga acetylene ndikutulutsa kutentha kwakukulu.CaC2 + 2H2O─ → C2H2 + Ca (OH) 2 + 125185.32J, 1kg ya pure calcium carbide imatha kupanga 366 L ya acetylene 366l (15 ℃, 0.1MPa).Potero, chifukwa chosungirako: calcium carbide iyenera kusungidwa kutali ndi madzi.Nthawi zambiri amapakidwa mu chidebe chachitsulo chomata, ndipo nthawi zina amasungidwa m'malo owuma odzaza ndi nayitrogeni ngati kuli kofunikira.
Calcium carbide (CaC2) imakhala ndi fungo lofanana ndi adyo ndipo imachita ndi madzi kupanga mpweya wa acetylene kuphatikiza calcium hydroxide ndi kutentha.M'mbuyomu, inkagwiritsidwa ntchito mu nyali za anthu ogwira ntchito ku migodi kuti azitulutsa lawi laling'ono la acetylene kuti lipereke zowunikira m'migodi ya malasha.
Calcium carbide imagwiritsidwa ntchito ngati desulfurizer, dehydrant of steel, mafuta mukupanga zitsulo, deoxidizer yamphamvu komanso ngati gwero la mpweya wa acetylene.Amagwiritsidwa ntchito ngati poyambira pokonzekera kashiamu cyanamide, ethylene, mphira wa chloroprene, acetic acid, dicyandiamide ndi cyanide acetate.Amagwiritsidwa ntchito mu nyali za carbide, zidole zoseweretsa monga mizinga ya big-bang ndi nsungwi.Imalumikizidwa ndi calcium phosphide ndipo imagwiritsidwa ntchito poyandama, kudziwotcha pamadzi chizindikiroCalcium carbide ndiye carbide yofunika kwambiri m'mafakitale chifukwa cha gawo lake lofunikira monga maziko amakampani a acetylene.Kumalo komwe kulibe mafuta amafuta, Calcium Carbideamagwiritsidwa ntchito ngati poyambira kupanga acetylene (1 kg ya zokolola za carbide ~ 300 malita acetylene), yomwe ingagwiritsidwenso ntchito ngati chomangira chamankhwala osiyanasiyana achilengedwe (monga vinilu acetate, acetaldehyde ndi acetic acid. ).M'madera ena, acetylene amagwiritsidwanso ntchito kupanga vinyl chloride, zopangira kupanga PVC.
Kugwiritsa ntchito kofunika kwambiri Calcium Carbide zimagwirizana ndi mafakitale a ferilizer.Imalimbana ndi nayitrogeni kupanga calcium cyanamide, yomwe ndi poyambira kupanga cyanamide (CH2N2).Cyanamide ndi chinthu chodziwika bwino chaulimi chomwe chimagwiritsidwa ntchito kulimbikitsa masamba oyambilira.
Calcium Carbide itha kugwiritsidwanso ntchito ngati desulfurizing agent popanga chitsulo chochepa cha sulfure carbon.Ndiponso, amagwiritsidwa ntchito ngati chochepetsera kupanga zitsulo kuchokera ku mchere wawo, mwachitsanzo, kuchepetsa mwachindunji mkuwa wa sulfide kukhala zitsulo zamkuwa.zoyaka moto.Kuphatikiza apo, imathandizira kuchepetsa mkuwa wa sulfide kukhala mkuwa wachitsulo.
Chemwin ikhoza kupereka ma hydrocarbon ambiri ambiri ndi zosungunulira zamankhwala kwa makasitomala aku mafakitale.Izi zisanachitike, chonde werengani mfundo zotsatirazi zokhuza kuchita bizinesi nafe:
1. Chitetezo
Chitetezo ndicho chofunikira kwambiri chathu.Kuphatikiza pa kupatsa makasitomala chidziwitso chokhudza kugwiritsa ntchito bwino komanso kusamala zachilengedwe kwa zinthu zathu, tadziperekanso kuwonetsetsa kuti chiwopsezo chachitetezo cha ogwira ntchito ndi makontrakitala chikuchepetsedwa kukhala chocheperako komanso chotheka.Choncho, tikufuna kuti kasitomala awonetsetse kuti miyezo yoyenera yotsitsa ndi kusunga chitetezo ikukwaniritsidwa tisanaperekedwe (chonde onani zowonjezera za HSSE pazogulitsa zomwe zili pansipa).Akatswiri athu a HSSE atha kupereka chitsogozo pamiyezo iyi.
2. Njira yobweretsera
Makasitomala amatha kuyitanitsa ndikutumiza zinthu kuchokera ku chemwin, kapena atha kulandira zinthu kuchokera kumakampani athu opanga.Njira zoyendera zomwe zilipo zikuphatikiza magalimoto, njanji kapena ma multimodal (mikhalidwe yosiyana imagwira ntchito).
Pankhani ya zofuna za makasitomala, titha kufotokoza zofunikira za mabwato kapena akasinja ndikugwiritsa ntchito miyezo yapadera yachitetezo / kuwunika ndi zofunikira.
3. Kuchuluka kwa dongosolo lochepa
Ngati mumagula zinthu patsamba lathu, kuchuluka kwa madongosolo ocheperako ndi matani 30.
4.Kulipira
Njira yolipirira yokhazikika imachotsedwa mwachindunji mkati mwa masiku 30 kuchokera pa invoice.
5. Zolemba zotumizira
Malemba otsatirawa amaperekedwa pakubweretsa kulikonse:
· Bill of Lading, CMR Waybill kapena chikalata china chamayendedwe
· Satifiketi Yowunikira kapena Yogwirizana (ngati pakufunika)
· Zolemba zokhudzana ndi HSSE mogwirizana ndi malamulo
· Zolemba za kasitomu mogwirizana ndi malamulo (ngati pakufunika)
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