Shaanxi Bloom Tech Co., Ltd. yog ib qho ntawm cov neeg tsim khoom lag luam zoo nkauj tshaj plaws thiab cov neeg xa khoom ntshiab p} {{- 42-3 nyob rau hauv Suav teb. Txais tos rau lag luam wholesale mag zoo heev ntshiab P-Xylene CAS 106-42-3 rau muag ntawm no los ntawm peb lub hoobkas. Cov kev pabcuam zoo thiab tus nqi tsim nyog muaj.
Pure P -} xyoojyog cov organic compound nrog cov tshuaj noj tshuaj c8h10 thiab cas 106-42-3. Nws yog ib qho ntawm cov khoom sib txuas uas tseem ceeb uas tseem ceeb. Nyob rau hauv chav tsev kub, nws yog cov kua tsis muaj xim thiab pob tshab nrog cov khoom siv aroms, tab sis cov txiaj ntsig, ceeg, dyes, thiab tshuaj tua kab. Nws tseem raug siv los ua cov qauv txheem thiab cov kuab tshuaj rau cov tshuaj lom li Chromatographic, thiab rau cov synthic synthesis.
Ib qho me me ntawm xylene yog siv los tsim dimethyl terins (dmt), uas tuaj yeem thov cov duab ntawm cov txheej txheem, cov nplaum, thiab kev tsim cov khoom lag luam, thiab kev tsim cov khoom lag luam, thiab kev tsim cov khoom lag luam, thiab kev tsim cov khoom loj. Los ntawm oxidation, nitration thiab lwm yam kev tawm tsam, feem ntau cov ntaub ntawv me me, uas tuaj yeem siv ua kua cov kev lag luam tshwj xeeb ntawm kev lag luam xws li hluav taws xob thiab tsheb.
|
Tshuaj Cov Qauv |
C8H10 |
|
Muaj pes tsawg leej |
106 |
|
Molecular hnyav |
106 |
|
m/z |
106 (100.0%), 107 (8.7%) |
|
Kev Ntsuam Xyuas |
C, 90.51; H, 9.49 |
|
|
|
Tam sim no, lub ntsiab kev ua p -}}}}}}}}}}}}}} kev sib cais thiab isomerization ntawm xylene.
Toluene tsis haum -}}}}}}}}}}}}}}}}}}}}}}}} ectiony hloov toluene mus rau Benzene thiab xylene. Kev hloov dua siab tshiab ntawm Toluene mus rau Xylene hu ua kev tsis sib luag, lossis "TDP". Lo lus "Alkyl hloov" piav txog kev hloov pauv ntawm kev sib xyaw ntawm Toluene thiab CGA. rau xylene.
Kev tsis sib haum:
Alkyl Hloov:
Toluene dispropalabionation tsuas yog tsuas yog muaj kev lag luam thev naus laus zis uas tau ua tiav kev tsis sib haum thiab Alkyl hloov mus rau hauv tib tus txheej txheem. Kev sib xyaw ua ke ntawm Toluene cov unppropention chav thiab chav tsev armatics tuaj yeem ua kom zoo tshaj plaws ntawm qhov qis-} Aratics los ntawm {{} cov khoom.
Adsorption thiab sib cais - tam sim no, lub thoob ntiaj teb adsorption, kev sib cais thev naus laus zis suav nrog UOP cov txheej txheem pareX thiab IFP cov txheej txheem tsiaj. Ob ntawm lawv yog cov tshiab adsorption sib cais txoj kev rau kev rov ua dua tshiab los ntawm kev sib xyaw ua ke - paraxelene ntawm xylene. Adsorption sib cais cov txheej txheem adopts cov khoom siv zsorbent xaiv rau p ing-}}}} dimethylenzene. Tsis zoo li cov tsoos chromatographic sib cais qauv, uas simulates cov ntws rov qab ntawm cov kua pub rau cov khoom adsorption txaj. Cov khoom noj thiab cov khoom lag luam tsis tu ncua nkag mus thiab tawm ntawm txheej adsorption, thiab cov cheebtsam nyob twj ywm tsis hloov. Lub purity ntawm cov khoom yog siab npaum li 99.9%, thiab tus nqi rov qab yog 65%.
Isomerization - omomerization txheej txheem los ua kom rov zoo tshaj plaws ntawm C8 Aratics isomerization sib xyaw. Qhov thiaj li -} hu ua "sib xyaw ua ke"}}}} {{{6} {{} urylbzene sib npaug sib xyaw thiab qee qhov sib npaug sib xyaw.
Qhov txheej txheem isomerization no yog feem ntau siv rau kev rov qab los ntawmPure P -} xyooj, but it can also be used to maximize the recovery of o-xylene or m-xylene. Nyob rau hauv rooj plaub ntawm p -} B {}}}}}}}} (qhov hnyav) thiab tus nqi rov qab ntawm 97% (qhov hnyav). Tom qab ntawd cov raffinate los ntawm p {10} â} xyooj adsorption sib cais ua ke (p}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} Chav tsev isomerization reconfirmed kev faib tawm qhov sib npaug ntawm xylene isomerization. Qhov tseeb, ntxiv p-}}}}}}}-}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} Nruab nrab isomers tau rov ua kom tshem tawm.
Tam sim no, cov catalysts siv nyob rau hauv isomerization units nyob hauv Suav teb tsuas yog suav nrog UOP Kuv system thiab Ripping Ski-series.
Raws li ib qho tseem ceeb aromatic hydrocarbon raw khoom, px muaj cov ntaub ntawv tseem ceeb thoob plaws lub cam polyester kev lag luam, thiab cov kuab tshuaj lom neeg ntau lawm. Cov hauv qab no yog cov ncauj lus kom ntxaws ntxaws ntawm nws cov ntawv thov tshwj xeeb:
1. Cov ntaub ntawv raw hauv cov saw hlau polyester
Lub zog tseem ceeb hauv PTA Production: kwv yees li 97% -99% acid (PTA), uas yog lub raj mis tseem ceeb (pyester fwj (bolyester fwj (thiab polyester cov ntaub ntawv). Piv txwv li, tshuaj lom neeg cov fibers account rau ntau dua 90% ntawm Tuam Tshoj cov ntawv nyeem cov nplais, nrog rau polyester account rau 80% ntawm cov tshuaj lom neeg. Yuav luag 70% ntawm lub tsev textile thiab khaub ncaws hnav ua lag luam kev vam khom rau cov khoom polyester.
Siv dav hauv lub davhlau ya nyob twg: polyester fwj lub ntsej muag flakes nyob rau hauv kev tsim cov khoom lag luam, thiab tsim kev tsim kho cov hlua khi los ntawm cov fibers rau kev muaj cov plastics.
2. Kev muaj kuab tshuaj thiab cov ntawv teev tshwj xeeb
Cov kuab tshuaj thiab tu tus neeg saib xyuas:Pure P -} xyoojyog siv los ua cov kuab tshuaj rau cov xim tha xim, roj hmab, thiab kev hloov hluav taws xob kom huv si vim nws lub siab ua kom zoo rau chlorine kom txo cov kuab paug ib puag ncig.
Chromatographic tsom kwm qauv: siv raws li cov qauv tshuaj xyuas cov qauv thiab ntsuas cov tshuaj chromatography (GC) kom paub meej qhov tseeb ntawm kev tshuaj ntsuam tau.
Aviation roj ntxiv: ib qho me me siv los txhim kho cov tawg thiab sib txuas ntawm kev ua haujlwm ntawm aviation, thiab ua kom zoo tshaj plaws ntawm cov cav av.
Cia peb muab cov lus qhia ntxaws ntxaws rau cov txheej txheem ntau lawm ntawm P -} xyooj):
Naphtha undergoes catalytic catalytic los tsim cov nplua nuj hauv cov roj uas muaj ntxhiab Hydrocarbons, thaum tseem ua cov roj av thiab liquefied roj av raws li - cov khoom. Catalytic Reforming tuaj yeem faib ua semi regenerated dacyalated txav lub txaj txuas ntxiv raws li cov qauv kev txhim kho kev txhim kho. Nrog rau kev nce roj ntxiv, Tuam Tshoj tau txiav txim siab ua kom cov khoom hloov pauv xws li 2000. hydrocarbons. Sib tov cov ntxhiab hydrocarbons xws li benzene, thiab xylamene, thiab xyab yog muab cais ua cov khoom lag luam siab, thiab xlene, thiab xlenene cov khoom los ntawm distillation.
Cov ntaub ntawv tau: Cov ntaub ntawv qhia pej xeem, Dadi Lub Tsev Haujlwm Kev Tshawb Fawb Kev Tshawb Fawb
Nroob roj av muaj c6 - c9 cov ntxhiab tsw hydrocarbons, ua rau nws ib qho tseem ceeb ntawm cov roj av muaj ntxhiab hydromatic hydrocarbons. Thaum siv Nafhath li cov khoom nyoos uas ua rau muaj kev tiv thaiv, kwv yees li 20% (ntau hauv qab) ntawm cov ntsiab lus txawv ntawm 40-80%. Chav tsev nkab hydrogenation hydrogenation chav yog ib chav ethylene, thiab nws txoj haujlwm tseem ceeb yog los reprocess cov khoom siv "tawg roj av" ntawm cov ethylene chav. Tawg roj av muaj cov ntaub ntawv muaj ntxhiab tsw zoo xws li cov pa roj ntsha Hydrocarbons (xyeem, mydene, n, etc. Ua ntej rho tawm tripheryl (Benzene,Pure P -} xyooj), nws yog ib qho tsim nyog los ua cov pyrolysis roj av, saturate txoj cai tsis tau muaj nrog hydrocarbon tebchaw muaj lwm cov ntsiab lus los ntawm hydrogenation cracking. However, cracked gasoline still contains hydrocarbons such as C5 and C9, so before hydrogenation, the C5 and C9 fractions in cracked gasoline are separated, and then the central fraction C6-C8 of cracked gasoline is subjected to hydrogenation treatment.
Txheej Txheem Txaus ntawm tawg roj av hydrogenation los tsim cov neeg muaj kuab
Cov ntaub ntawv tau: Cov ntaub ntawv qhia pej xeem, Dadi Lub Tsev Haujlwm Kev Tshawb Fawb Kev Tshawb Fawb
Lub teeb HydroCarbon araticization technology yog cov txheej txheem petrochemical tshiab tsim hauv xyoo dhau los. Nws siv C2 rau C7 lub teeb fydrocarbons li cov ntaub ntawv raw thiab ua kom zoo nkauj, thiab high octane roj av, muaj kev sib cav sib ceg, thiab lwm yam kev tawm tsam. Rau lub teeb hydrocarbon aromatization technology, tsis muaj teeb meem ntawm cov khoom siv raw. Lub teeb Hydrocarbons nyob ntawm ethylene rau cov roj av roj yuav siv tau ua cov roj raw, ntawm cov roj raw rau lub teeb hydrocarbon. Kev tsim cov ntxhiab hydrocarbons yuav tsum muaj cov chav ua haujlwm sib txawv raws li cov khoom siv raw thiab cov txheej txheem txheej txheem. Kev noj cov catalytic cracking c4 feem ntau me fraction ntawm cov ntxhiab hydrocarbons ua piv txwv, cov khoom sib cais, thiab cov khoom sib cais.
Teeb Hydrocarbon Aromatic Txheej Txheem
Cov ntaub ntawv tau: Cov ntaub ntawv qhia pej xeem, Dadi Lub Tsev Haujlwm Kev Tshawb Fawb Kev Tshawb Fawb
Cov ntaub ntawv sib txawv tseem muaj qhov sib txawv ntawm cov txheej txheem kev tshwm sim ntawm kev tsim cov ntxhiab hydrocarbons. Hauv qab no, peb yuav txhawb nqa khoom thiab Butane ua piv txwv los qhia txog cov txheej txheem tshuaj lom neeg ntawm lub teeb hydrocarbon arbomanization. Thaum proce undergoes aromatic kev tawm tsam ntawm ib qho catalyst, qhov siab tshaj plaws aromatic tawm tau ua tiav ntawm 650℃tawm los txo dhau qhov kub no. Nrog kev pab ntawm catalysts, tus nqi hloov dua siab tshiab ntawm cov khoom lag luam yog 56% rau 95%, thiab cov roj av yog feem ntau methane thiab tab sis. Cov txiaj ntsig ntawm cov khoom ua kua yog tsawg, feem ntau xws li 17% mus rau 37%. Benzene, Toluene, thiab cov nyiaj xyho rau feem coob ntawm cov khoom ua kua.
Cov txheej txheem ntawm cov tsim cov ntxhiab hydrocarbons los ntawm cov khoom siv ua cov khoom nyoos
Cov ntaub ntawv tau: Cov ntaub ntawv qhia pej xeem, Dadi Lub Tsev Haujlwm Kev Tshawb Fawb Kev Tshawb Fawb
Cov txheej txheem ntawm cov tsim muaj cov ntxhiab hydrocarbons los ntawm Butane raws li cov khoom siv raw
Cov ntaub ntawv tau: Cov ntaub ntawv qhia pej xeem, Dadi Lub Tsev Haujlwm Kev Tshawb Fawb Kev Tshawb Fawb
Seb nws yog catalytic kho dua tshiab hydrogenation, lossis lub teeb hydrocarbons tau, xws li ethylbenzene, thiab lwm yam thov kom muaj ntau yam thiab ntau. Ntawm lawv, TOLUES, META XYLENE, thiab lwm yam cov ntxhiab Hydrocarbons tus account txog li 50%, thiab qhov kev xav tau ntawm kev sib cav thiab xav tau ntawm cov khoom muaj ntxhiab hydrocarbon thiab ntau yam. Yog li ntawd, nws yog ib qho tsim nyog los txhim kho thev naus laus zis rau kev hloov pauv ntawm cov tshuaj hydrocarbon. Lub toluene tsis sib haum thiab alkyl hloov tshuab yog ib txoj kev zoo los hloov cov tshuaj lom neeg hydrocarbons uas tsim los ntawm kev sib xyaw ua ke thiab ntau npaum li cas, muaj ntau yam tshuaj tsw qab thiab ntau dua ntawm cov ntxhiab hydrocarbons. Ntau tshaj 50% ntawm cov sib xyaw ua ke hauv cov ntxhiab hydrocarbon complex yog tsim los ntawm cov thev naus laus zis no, uas yog lub ntsiab txhais tau tias ncePure P -} xyoojkev tsim tawm hauv cov ntxhiab hydrocarbon complex.
Cov txheej txheem tseem ceeb ntawm Toluene / Benzene kev tsis sib xws thiab Alkyl Transpportation thiab Alkyl Transfer yog qhia nyob rau hauv daim duab hauv qab no:
1. Kev sib cav sib ceg
2. Alkyl hloov cov txheej txheem
Cov ntaub ntawv tau: Cov ntaub ntawv qhia pej xeem, Dadi Lub Tsev Haujlwm Kev Tshawb Fawb Kev Tshawb Fawb
Xylene iomerization tseem yog ib txoj hauv kev tseem ceeb rau kev nce PX ntau lawm hauv cov koog muaj ntxhiab Hydrocarbon. Vim qhov kev txwv ntawm thermodynamic effilibrium, cov ntsiab lus ntawm px nyob rau hauv lub cated cylene tau los ntawm catalytic rov kho roj thiab tawg roj av tsuas yog kwv yees li 25%. Txhawm rau ua kom tiav ntau lawm ntawm px, lwm yam c8 cov ntxhiab hydrocarbons yuav tsum tau hloov mus rau hauv PX los ntawm kev tawm tsam yog qhov tsis zoo. Vim tias qhov nyuaj hauv kev sib cais urrethyllukene thiab ethylali hydrocarbons, qee lub urroment hydrodzene nyob rau hauv cov ntaub ntawv raw ntawm cov khoom siv xylene isomerization, uas yuav tsum tau kho. Feem ntau cov qauv siv yog txhawm rau ua kom ethylenzene rau hauv xylene lossis deals nws mus rau hauv Benzene. Yog li ntawd, cov txheej txheem xyelene isomerization feem ntau suav nrog cov kev hloov pauv ntawm ethyllenzene hloov dua siab tshiab thiab hom kev ua kom zoo nkauj thiab hom phiaj. Cov txheej txheem ntws ntawm ob yog yeej zoo li qub, ob leeg siv cov tshuaj reactors nyob rau hauv muaj ntawm hydrogen. Qhov sib txawv lus dag nyob hauv catalyst thiab nws cov kev npaj, nrog rau kev kho mob ntawm ethylbenzene.
Cov txheej txheem tseem ceeb yog qhia hauv daim duab hauv qab no:
(1) xyaw olene isomerization cov txheej txheem
(2) Cov txheej txheem ntawm ethylbzene isomerization cov tshuaj tiv thaiv
Cov ntaub ntawv tau: Cov ntaub ntawv qhia pej xeem, Dadi Lub Tsev Haujlwm Kev Tshawb Fawb Kev Tshawb Fawb
Raws li kev ua lag luam ib txwm muaj, qhov ntau tshaj thylene tsim los ntawm cov nroj tsuag hydrocarbon, tus nqi zoo dua. Txawm li cas los xij, yuav ua li cas cais xylene los ntawm c8 aromatic hydrocarbons yuav tsum muaj cov txheej txheem paub tab los muab kev txhawb nqa rau kev tsim cov khoom lag luam ntxiv thiab px). Tam sim no, adsorption sib cais qauv yog dav siv hauv cov nroj tsuag hydrocarbon, uas siv cov kev tiv tauj rov qab ntawm C8 cov ntxhiab hydrocarbons thiab adsoric. Tus adsorbent muaj cov yam ntxwv ntawm xum adsorbing p - Cov khoom siv yuav rov qab ua ntau lub sijhawm los ua kom muaj kev xav ntau dua, thiab cov khoom siv xyooj (px) ntawm adsorbent. Tom qab ntawd, tus neeg sawv cev desorption yog siv los desorb p-} Kev daws C8 raug xa mus rau P {10} â) ntau lawm.
Txheej Txheem Txaus Ntshai ntawm PX ntau lawm los ntawm adsorption sib cais qauv
Cov ntaub ntawv tau: Cov ntaub ntawv qhia pej xeem, Dadi Lub Tsev Haujlwm Kev Tshawb Fawb Kev Tshawb Fawb
Ntsiab lus ntawm cov txheej txheem ntau lawm ntawm paraxylene (px)
1. Cov ntxhiab hydrocarbons, tshwj xeeb yog cov ntxhiab tsw hydrocarbons (Benzene, yog ib qho khoom siv raw, thib ob tsuas yog rau ethylene thiab probylene hauv kev lag luam tshuaj lom neeg.
2. Roj ntsa ntau lawm yog ob txoj hauv kev los ua cov khoom lag luam hydrocarbons, nrog kev ua roj ntau dua ntawm cov khoom lag luam hydocarbon ntau dua li cov khoom siv teev. Nyob rau hauv lub teeb pom ntxhiab hydrocarbons (C6-C8), 83% ntawm Benzene thiab Toluene los ntawm kev lag luam Coke Coke.
3. Muaj peb lub ntsiab thev naus laus zis rau kev tsim cov ntxhiab hydrocarbons los ntawm roj av. Catalytic hloov pauv thiab tawg roj av hydrogenation yog cov tseem ceeb, cov nyiaj txiag rau 96% ntawm cov khoom lag luam hydocarbon. Nyob rau tib lub sijhawm, catalytic hloov kho thiab tawg roj av hydrogenation kuj tseem yog cov chaw muaj ntxhiab Hydrocarbon ntau yam khoom siv rau tsuas yog 4%.
4. Nyob rau hauv kev tsim cov tshuaj sib xyaw ua ke hydrodebons los ntawm ntau yam xyab, thiab xyab}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} Qhov kev thov rau benzene thiab p -}}}} yog nce ib hnub, tab sis cov khoom lag luam ntau yog me me. Toluene / Benzene tsis sib luag nrog Alkyl Transfortions muaj peev xwm txo cov ntsiab lus ntawm toluene thiab lwm yam ntxhiab hydrocarbons, thiab nce cov ntsiab lus ntawm benzene thiab xylene.
5. Hauv xylene, vim yog thermodynamic txwv, kev sib npaug ntawm p-}} {%, thiab orto xyho account rau 10% -15%. Xylene iomerization daws cov teeb meem ntawm tsawg feem ntawm xylene.
6Pure P -} xyooj(Px).
Cov tshuaj tiv thaiv tsis zoo
P {- }hlene, nrog tshuaj lom neeg cors, nrog cov tshuaj lom neeg lub cev, yog qhov muaj ntxhiab tsw qab thiab ib qho ntawm peb isomers ntawm xylene. Raws li cov khoom siv hluav taws xob raw hauv kev lag luam tshuaj, ntshiab yog siv nyob rau hauv kev tsim cov khoom lag luam xws li polyester fibers, hwj yas, thiab yeeb yaj kiab. Vim tias nws lub tshuab qhib thiab lipid solubility, ntshiab ua xyu lub cev, tawv nqaij, thiab kev tsheb zom, thiab siv, ua rau muaj kev phiv tshuaj.
Kev thab plaub thiab lub hauv qab nruab nrab
Pure xylene vapor has strong irritants and can quickly cause congestion and edema of the respiratory mucosa upon inhalation, leading to symptoms such as coughing and difficulty breathing. Animal experiments have shown that after inhaling 4550ppm of xylene vapor for 4 hours, rats exhibit central nervous system inhibition such as reduced activity and ataxia. In cases of acute human exposure, short-term inhalation of high concentrations (>1000PpM) ntawm xyiaj tuaj yeem ua rau kiv taub hau, mob taub hau, xeev siab, ntuav, thiab txawm tias yog qhov tsis nco qab los yog coma. Paraxylene tau nrawm nrawm nrawm mus rau hauv cov hlab ntshav los ntawm alveoli, inhibiting txoj haujlwm ntawm gasma) cov kua qaub (
Tawv thiab Qhov Muag
Hu rau ncaj qha ntawm cov tawv nqaij ntshiab nrog cov tawv nqaij tuaj yeem ua rau tus qauv Lipid ntawm cov kab mob cell ntawm cov kab mob cell ntawm cov kab mob ntawm tes, orders, hlwv, thiab khaus. Cov luav sim qhia tau tias tom qab thov 500mg ntawm xylene hauv zos rau 24 teev, muaj kev cuam tshuam rau daim tawv nqaij. Thaum nyob rau hauv kev sib cuag nrog lub qhov muag, 0.1ml ntawm xyaws tuaj yeem ua rau pob txha epithelial detachent, ua rau phem, tej zaum yuav ua rau muaj mob loj, tej zaum yuav ua rau pom kev.
Cov tsos mob ntawm Donestive System
Kev noj zaub mov ntshiab ntawm cov ntshiab xyob tuaj yeem ua rau muaj kev xeb ntawm lub qhov ncauj, thiab mob plab zom mov, ua rau mob plab, mob plab zom mov, mob plab, thiab ntuav ntshav. Qhov ncauj LD ntawm nas yog 5000mg / kg. Nyob rau hauv tib neeg tshuaj lom neeg raug, noj 50ml tuaj yeem ua rau mob plab hnyuv loj heev, nrog cov metabolic acidos thiab ntau yam khoom siv acidomic thiab ntau lub cev muaj zog.
Kev kho cov hauv paus ntsiab lus: Tam sim ntawd nqa cov pa roj carbon thiab kos rau kev ua yeeb yam kom tiv thaiv kom tsis txhob mob siab rau lub siab thiab mob raum ua haujlwm.
Cim npe nrov: Pure P -}} ey xyh-42-3, Cov neeg tsim khoom, chaw tsim khoom, chaw tsim khoom, yuav khoom, rau muag