Polyester (pet) fiber ndiyo yakanyanya kusiyana-siyana yeiyo synthetic fiber. Zvipfeko zvakagadzirwa nePolyester fiber yakagadzikana, Crisp, zviri nyore kugeza, uye nekukurumidza kuoma. Polyester zvakare inoshandiswawo zvakanyanya seyakareba zvinhu zvekutakura, maindasitiri yarns, uye mainjiniya mapuranga. Nekuda kweizvozvo, Polyester akakurumidza kukurumidza kupasi rese, kuwedzera paavhareji yegore neyekupedzisira kwe7% uye nekubuda kwakakura.
Polyester kugadzirwa kunogona kukamurwa kuita dimethyl terephthalate (DMT) nzira uye terephthaal acid (PTA) nzira yekuita nzira uye inokonzerwa nepakati uye inoenderera mberi maitiro maererano nekuvhiya. Pasinei neyekugadzira nzira yekugadzira inogamuchirwa, iyo polycondensation yekuita inoda kushandiswa kwesimbi mishonga yekubata. Iyo polycondensation reaction inguva yakakosha muPolyester yekugadzira maitiro, uye nguva yePolycondeonsation ndiyo bhodhoro rekuvandudza goho. Iko kuvandudzwa kweiyo catalyst system chikamu chakakosha mukuvandudza kunaka kwePolyester uye kupfupisa nguva yePolycondeonsation.
Urbanmines tech. Limited inotungamira kambani yeChinese yeChinese Inyanzvi muR & D, kugadzirwa, uye kugovera Polyester Catalyst Trioxide, Antimony Acetate, uye Antimony Glycol. Taitisa kutsvagisa pane izvi zvigadzirwa-iyo R & Dpartment yeUrbanmines ikozvino inopfupisa CARYSTS
Nyanzvi dzepamba uye dzekunze dzinowanzo tenda kuti polyester polycendenation chiito chekuwedzera, icho chinoda kuunganidza zvisingaiti kuti ubatanidze neArc mbiri yeAccors yeCarbonyl okisijeni kuti uwane chinangwa cheCartilank. Kune polycendenation, nekuti maEkiri weEktilektron Creatity yeCarbonyl Oxygen muHydroxetHyl Group Rekunyora
Izvi zvinotevera zvinogona kushandiswa sePolyester CatchALSTS: NA, naK, CA, B, gunidines, sarufa-ine organic compounds. Nekudaro, iyo inochengetera iyo parizvino yakashandiswa uye yakadzidzwa mukugadzirwa kwemaindasitiri ndeye kunyanya sb, ge, uye ti makomputa erevhi. Nhamba huru yezvidzidzo yakaratidza kuti: GE-GE-BASETATS ine mashoma mativi maitiro uye gadzira mhuka yemhando yepamusoro, asi basa ravo harisi rakakwirira, uye vane zviwanikwa zvishoma uye vanodhura; Ti-based CatalyStes ine yakakwira chiitiko uye nekukurumidza kuita zvekumhanya zviri pachena, zvichikonzera ruvara rwepamoyo rwechigadzirwa, uye kazhinji dzinogona kungoiswa kune synthesis yePBT, ptt, ptt, etc.; SB-based Catalysts haishande chete inoshanda. Hunhu hwechigadzirwa hwakakwira nekuti SB-based CatalySts zvinonyanya kushanda, vane mashoma mativi maitiro, uye akadhura. Naizvozvo, ivo vakashandiswa zvakanyanya. Pakati pavo, zvakanyanya kuwanzoshandiswa SB-based CATLATIALS ndeye Antimony Trioxide (SB2O3), Antimony Acetate (SB (Ch3coo) 3), etc.
Tichitarisa nhoroondo yekuvandudza yePolyester indasitiri, tinogona kuwana izvo zvinopfuura 90% yezvidyarwa zvePolyters munyika shandisa antimony makomputa sevanobata. Pakazosvika 2000, China yakange yaunza zvidyarwa zvakati wandei, zvese izvo zvinoshandiswa zvinopenya zvinowanzoitika seCatalySts, kunyanya SB2O3 uye SB (Ch3coo) 3. Kuburikidza nekuedza kwakabatana kwekutsvaga kweChinese kwesesa resainzi, mayunivhesiti, uye madhipatimendi aya, aya maviri ekutengesa izvozvi ave ave zvizere zvakagadzirwa.
Kubva 1999, Comical Chemical Company elf yavhura antimony glycol [sb2 (Och2ch2co) 3] Catalyst chigadzirwa chekushambadzira kwechinyakare chetsika. Iyo polyester machipi yakagadzirwa neyakanyanya kuchena uye yakanaka spinning, iyo yakakwezva kutarisisa kubva kune dzimba dzekutengesa dzimba dzekutengesa, mabhizinesi, uye Polyester Vagadziri muChina.
I. Tsvagiridzo uye Kushandiswa kwe Antimony Trioxide
United States ndeimwe yenyika dzekutanga kuburitsa uye shandisa SB2O3. Muna 1961, kushandiswa kweSB2O3 muUnited States kwasvika pamatani 4,943. Mumakore ekuma1970, makambani mashanu muJapan akagadzira SB2O3 neine huwandu hwekugadzira huwandu hwemakumi matanhatu nemakumi matatu ematani pagore.
China huru SB2o3 Kutsvaga uye zvikamu zvekuvandudza zvinonyanya kuiswa mumabhizinesi ehurumende ehurumende muHunan Province naShanghai. Urbanmines tech. Yakazara zvakare yakagadza nyanzvi yekugadzira mutsara muHunan Province.
(I). Nzira yekugadzira antimony trioxide
Kugadzirwa kweSB2O3 kazhinji kunoshandisa antimony sulfide ore seyakaisa zvinhu. Metal Antimony anotanga kugadzirira, uye ipapo SB2O3 inogadzirwa uchishandisa simbi yekutambanudza seyakaisa zvinhu.
Pane nzira mbiri huru dzekugadzira SB2o3 kubva simbi Antimony: Direct Oxidation uye nitrogen yekuenda kuDocomposition.
1. Direct oxidation nzira
Metal Antimony anosangana neokisijeni pasi pekupisa kuumba sb2o3. Maitiro ekuita ari seanotevera:
4sb + 3o2 == 2SB2O3
2. Ammonilysis
STATIMONY Simbi inowana neChrorine yekunyorera Antimony Trichloride, iyo inozungunuka, hydrolyzed, hydrolyzed, yakashambidzwa, uye yakaoma kuwana iyo yapera SB2O3 chigadzirwa. Iyo yekutanga reaction equation ndeye:
2sb + 3cl2 == 2SBCL3
SBCL3 + H2O == sbocl + 2hcl
4sbocl + H2O == SB2O3 · 2sbocl + 2hcl
SB2O3 · 2sboCl + oh == 2SB2O3 + 2NH4CL + H2O
(Ii). Inoshandiswa yeAntimony Trioxide
Kushandiswa kukuru kweAnimony Trioxide inofanana neCatalyst yePolymerase uye murazvo unodzoreredza kune zvigadzirwa zve synthetic.
Mune iyo polyester indasitiri, SB2O3 yakatanga kushandiswa sechipenga. SB2O3 inonyanya kushandiswa sePolycondensation Catalyst yeiyo DMT nzira uye nzira yekutanga PTA uye inowanzoshandiswa musanganiswa neH3po4 kana ma arishomer.
(Iii). Matambudziko ane Antimony Trioxide
SB2O3 ine isina kunaka solubility mu ethylene glycol, ine solubility yeiyo chete 4.04% pa150 ° C. Naizvozvo, idzo etherlene Glycol inoshandiswa kugadzirira iyo CATALYST, iyo inogona kupararira zvakanyanya muitiro wePolymerization, gadzira yakakwirira-inonyungudika cyclic manhamba, uye uuye nematambudziko ekupururudza. Kuvandudza iyo Solubility uye Kupararira kweSB2O3 muEndylene Glycol, inowanzoshandiswa kunyanyisa Etlelane Glycol kana kuwedzera tembiricha yekudzvinyirira kusvika kumusoro kwe150 ° C. Nekudaro, pamusoro pa120 ° C, SB2O3 uye ethylene Glycol inogona kuitisa Simbi yekunyepedzera, iyo inogona kukonzera "fog" muPolyester machipisi uye inokanganisa zvigadzirwa zvechigadzirwa.
Ii. Tsvagiridzo uye Kushandiswa kweAntimony Acetate
Kugadzirira nzira yeAntimony Acetate
Pakutanga, Antimony Acetate akagadziriswa neanosimudzira Antimony Trioxide neAcetic acid, uye acetic Anhydride akashandiswa semumiriri wetsvina kuti atore mvura yakagadzirwa nekuita. Unhu hwechigadzirwa chakapera kuwanikwa nenzira iyi yakanga isiri yakakwirira, uye yakatora anopfuura maawa makumi matatu kuti antioxide to nyungudika muacetic acid. Gare gare, Antimony Acetate akagadzirirwa nekuita simbi Antimony, antimony trichlolide, kana antimony trioxide ane acetic anydride, pasina chinodiwa mumiririri ane mweya wacho.
1. Antimony trichloride nzira
Muna 1947, H. Schmidt et al. MuWest Germany Yakagadziriswa SB (Ch3coo) 3 nekuita SBCL3 ine acetic Anhydride. Iyo nzira yekugadzirisa ndeye inotevera:
SBCL3 + 3 (CH3CO) 2O == SB (Ch3coo) 3 + 3CH3COCL
2. Intimony Simbi nzira
Muna 1954, tapaybea yeiyo yeSoviet Union yakagadzirira SB (Ch3coo) 3 nekuita simbi entimony uye peroxycetyl mumhinduro ye benzene. Iyo nzira yekugadzirisa ndeye:
SB + (CH3COO) 2 == SB (Ch3coo) 3
3. Antimony Trioxide nzira
Muna 1957, F. Nerdel ye West Germany yakashandisa SB2O3 kuita neacetic Anhydride yekugadzira SB (Ch3coo) 3.
SB2O3 + 3 (CH3CO) 2O == 2SB (Ch3coo) 3
Iko kukanganisa kwenzira iyi ndeyekuti makristasi anowanzoita kuti akaunganidze kuita zvidimbu zvidimbu uye zvimedu zvakasimba kumadziro emukati weanoshanda
4. Antimony trioxide solvent nzira
Kukurira zvikanganiso zve nzira iri pamusoro, kusarerekera kwesimba kunowanzowedzerwa panguva yekuita kweSB2O3 uye acetic Anhydride. Iyo chaiyo yekugadzirira nzira iri seinotevera:
. Iyo patent yakashandiswa xylene (o-, m- m-xylene, kana musanganiswa waro) seyakagadziriswa solvent yekugadzira makristasi akanaka eantimony acetate.
.
III. Kuenzanisa kweVatatu Antimony-based CatalySts
| Antimony Trioxide | Antimony Acetate | Antimony glycolate | |
| Zvivakwa zvakakosha | Inowanzozivikanwa seantimony White, Molecular Formula SB 2 o 3, Molecular Weight 291.51, White Hoda, Inotaura Pfungwa 656 ℃. Theoretical antimony zvirimo anenge 83.53%. YEMAHARA DENSTY 5.20g / ml. Soluble mune yakadzika hydrochloric acid, yakaisirwa sulfutic acid, yakagadzirirwa nitric acid, tartaric acid naAlkali solution, doro, dhallute sulfuric acid. | Molecular Formula SB (AC) 3, molecular uremu 298.89, theoretical themer ye40.731 | Molecular Formula SB 2 (semuenzaniso) Iyo inochema mu ethylene glycol. |
| Synthesis nzira uye tekinoroji | Kunyanya synthesised ne stibnite nzira: 2SB 2 S 3 + 9O 2 → 2 Om | Iyo indasitiri inonyanya kushandisa SB 2 O 3 -SOLVEN nzira yeSynthesis: SB2O3 + 3 (Chinyorwa (Chekurapa) 3 O 3 haigone kuve mumvura ine mvura, uye michina yekugadzira inofanirawo kuoma. | Iyo indasitiri inonyanya kushandisa SB 2 o 3 nzira yekuSB 2 O 3 + 3EG → SEFATSIZIZE KUPEDZISIRA: maitiro anoda kuparadzaniswa nemvura kudzivirira hydrolysis. Kuita uku ndiko kuita kunodzoreredza, uye kazhinji maitiro anokurudzirwa nekushandisa yakawandisa ethylene glycol uye kubvisa mvura yechigadzirwa. |
| Mukana | Mutengo wacho wakachipa, zviri nyore kushandisa, une mwero wekutengesa chiitiko uye pfupi pfupi yekufunga nguva. | Antimony Acetate ane yakanaka solubility mu ethylene glycol muEndimony yeiyo Antimony ine maitiro epamusoro wechikuru chiitiko, kushoma kugadzirisa, kwakanaka kupisa kuramba uye kugadzirisa kugadzikana; Panguva imwecheteyo, uchishandisa Antimony Acetate seChartalySt haidi kuwedzera kweCo-Catalyst uye stabilizer. Kuita kweiyo Antimony Acetate Catalytic System ndeyekunyorova, uye mhando yechigadzirwa yakakwira, kunyanya ruvara, rwuri nani pane iyo Intimony Trioxide (SB 2 o 3) system. | Iyo CATALYST ine yakakwira solubility mu ethylene glycol; zero-alent artimony inobviswa, uye yakasviba senge mondekisirwo esimbi, anokanganisa dambudziko reColly SB (AC) 3, huwandu hweSB 3+ inotungamira danho rechikuru. Ruvara rwePolyester Chigadzirwa chinogadzirwa neSB 2 (semuenzaniso) 3 zviri nani pane iyo yeSB 2 o 3 zvishoma yakakwirira kupfuura iyo yekutanga, ichiita kuti chigadzirwa chinotaridzika uye chakachena; |
| Zvisina kunaka | Iyo solubility muEtralene glycol iri murombo, chete 4.04% pa150 ° C. Mukuita, ethylyne Glycol yakanyanyisa kana iyo yekudzvinyirira tembiricha inowedzera kusvika pamusoro pe150 c. Nekudaro, kana sb 2 o 3 ethyts ne ethylene glycol panguva yepamusoro 120 ° CLYCOPTION YEMADZIMAI, iyo Grey Fog "muPolyester machipisi uye inokanganisa hunhu. Chiitiko chePolenomenon yePolyvallarent Antimony oxides anowanikwa panguva yekugadzirira SB 2 o 3, uye kuchena kwakanyatsoshanda kweantimony kunokanganiswa. | Iyo fantimony yezvinyorwa zvechikadzi yakaderera; Iyo acetic acid kusvibiswa kwakaunza corrode michina, kusvibisa nharaunda, uye haina kukodzera kumarara kurapwa; Maitiro ekugadzira akaomarara, mamiriro ezvinhu epachiripo anoshanda ane murombo, pane kusvibiswa, uye chigadzirwa chiri nyore kuchinja ruvara. Zviri nyore kuora kana kupisa, uye zvigadzirwa zveHydrolysis zviri SB2O3 uye ch3coh. Iyo nguva yekugara kwenguva yakareba, kunyanya mune yekupedzisira polycondeensation nhanho, iyo yakanyanya kukwirisa kupfuura iyo SB2O3 system. | Iko kushandiswa kweSB 2 (semuenzaniso Mukuwedzera, iyo b kukosha kweiyo chigadzirwa hue inowedzera zvishoma. |