Li-catalys tsa Anotiony tse Thehiloeng

Polyester (Pet) Fiber ke mefuta e mengata e fapaneng ea fiber ea maiketsetso. Liaparo tse entsoeng ka filyester fiber e phutholohile, e leng leruo, ebile ho bonolo ho hlatsoa, ​​'me u potlake ho omella. Polyester e boetse e sebelisoa haholo e le ntho e tala bakeng sa ho paka, li-yarns tsa li-indasteri le lipolente tsa boenjiniere. Ka lebaka leo, Polyester e se e qalile ka potlako lefatšeng ka bophara, e ntse e eketseha ka lebelo la selemo le selemo le selemo le ho tsoa ka tlhahiso e kholo.

Tlhahiso ea Polyester e ka aroloa ho Dibethyl Terephthaight le Terephthalic acid ho latela ts'ebetso ea ts'ebetso le ts'ebetso e tsoelang pele ea ts'ebetso. Ho sa tsotelehe tsela ea tlhahiso e amohetseng, karabelo ea polycondentation e hloka tšebeliso ea metsoako ea tšepe e le kanameli. Seemahale sa polycondation ke mohato o nepahetseng ts'ebetsong ea polyester, 'me nako ea polycondensancens ke botlolo ea ho ntlafatsa tlhahiso. Ntlafatso ea tsamaiso ea semaki se seholo ke karolo ea bohlokoa ea ho ntlafatsa boleng ba sethepu le khutso nako ea polycondentara.

Li-Urbanmines Tech. Limited ke khamphani e etellang pele ea China e ikhethileng ho R & D, tlhahiso ea Polyester Catalyst-king antimony actimos gellycol. Re entse lipatlisiso tsa botebo ka lihlahisoa tsena - Lefapha la litoropong joale le akaretsa lipatlisiso le sengoliloeng sena ho thusa bathusi ba tlhahiso ea barekisi ba Polyester FAR.

Litsebi tsa lehae le tse ling ka kakaretso li lumela hore Polyester Polycondensions ke karabelo ea kemiso ea sesepa ho latela meralo ea li-catalysis. Bakeng sa boiphetetso, hobane oksinsui ea Cloptros e na le oksijene ea 'mele oa Hydroxethyl, elecroneGagrat ea li-Ion e phahame, ho tsamaisa katoloso ea katoloso.

The following can be used as polyester catalysts: Li, Na, K, Be, Mg, Ca, Sr, B, Al, Ga, Ge, Sn, Pb, Sb, Bi, Ti, Nb, Cr, Mo, Mn, Fe, Co, Ni, Pd, Pt, Cu, Ag, Zn, Cd, Hg and other metal oxides, alcoholates, carboxylates, borates, halides and amines, Ureas, li-Guligids, li-silfur-culfur-compyicms. Leha ho le joalo, li-catalys li sebelisoa le ho ithutoa sebakeng sa indasteri li boholo ba SB, ge le li-vuntiund tsa li-vutitures. Boithuto bo boholo ba lithuto bo bontšitse seo: Boikemisetso bo boholo bo nang le tšebetso e phahameng le lebelo la bona la maiketsetso, empa 'mala oa bona o tsitsitseng oa sehlahisoa,' me ka kakaretso ba ka sebelisoa feela ka semelo sa PCT, PCT.; Li-catalysts tsa sb-tse thehiloeng ho tsona ha li na matla a mafolofolo. Boleng ba sehlahisoa bo phahame hobane li-catalyts tsa SB li sebetsa haholo, li na le karabelo e fokolang, 'me li theko e tlaase. Ka hona, ba sebelisitsoe hohle. Har'a bona, li-catalyts tse sebelisoang haholo ka ho fetisisa tsa li-sb tse tloaelehileng li tloaelehileng (SB2o3), Antimony Acetate (CB3Co) 3), jj.

Ha re sheba nalane ea boitlamo ea indasteri ea polyester, re ka fumana hore lijalo tse fetang 90% tsa lijalo tsa polyester lefatšeng li sebelisa metsoako ea antimasion ho sebelisa metsoako ea antimasion e le metsoako ea antimasion e sebelisa metsoako ea antimany Ka 2000, China o ne a hlahisitse limela tse 'maloa tsa polyester, tseo kaofela li sebelisitseng likomila tsa antimore, haholo-holo litlokotsi, haholo-holo SB (Ch3coo) 3. Ka boiteko bo kopaneng ba lipatlisiso tsa mahlale ba China, le mafapha a tlhahiso, batho bana ba nang le li-catasts tse peli hona joale ba hlahisitsoe ka botlalo.

Ho tloha ka 1999, French Company Elf e sentse antinony ea aninony [SB2 (Och2ch2co) 3] Coalyst Li-chiops tsa polyester li hlahisitse ho bosoeu bo phahameng, tse hohelang tlhokomelo e kholo ho litheo tse kholo tsa lipatlisiso tsa malapeng, likhoebo le baetsi ba Polyester China China China.

I. Patlisiso le ts'ebeliso ea antiTony Trooxide
United States ke e 'ngoe ea linaha tsa pele tsa pele ho hlahisa le ho sebelisa SB2o3. Ka 1961, tšebeliso ea SB2o3 United States e ile ea fihla lithane tse 4,943. Ka bo-1960, likhamphani tse hlano tsa likhaitseli tsa Japane li ile tsa hlahisa SB2o3 ka matla a ho hlahisa lithahasello tse 6,360 ka selemo.

Mahlohonolo a China a ka sehloohong a SB2o3 le Nts'etsopele ea kholo ea Chaena e tsepamisoa haholo likhoebo tsa pele tsa mmuso oa Hunan le Shanghai. Li-Urbanmines Tech. E na le moeli o hlophisitsoeng oa tlhahiso ea litsebi Profinse ea Hunan.

(I). Mokhoa oa ho hlahisa terioxide ea antimany
Phehisa ea SB2O hangata e sebelisa ea Antimony Sulfide e le thepa e tala. Antimany Anhinum o itokisitse ka lekhetlo la pele, 'me SB2o3 e hlahisoa ho sebelisa tšepe ea tšepe e le thepa e tala.
Ho na le mekhoa e 'meli e meholo ea ho hlahisa SB2o3 ho tloha Metallic Antitiation, ho ba le bosholu ba naetrojene.

1. Mokhoa o tobileng oxidation
Metal Anitiny ea Rectiny Tlas'a oksijene tlasa ho futhumatsa ho theha SB2O3. Ts'ebetso ea karabelo e tjena:
4sb + 3o2 == 2sb2o3

2. Ammonolysis
ANTIMINE E FUMANANG HO FIHLA MAHALA HO RATA KOLOBETSO EA ANTimony Triclony Triclony Triclony Triclony Triclorde Equation ea mantlha ea karabelo ke:
2SB + 3LM2 == 2SBCLL3
Sbcl3 + h2O == Sboct + 2Hl
4Sbocll + h2o == sb2o3cre + 2Hl
Sb2o3 · bot + oh == 2sb2o3 + 2NH4cl + h2o

(Ii). E sebelisa ea antimony trioxide
Ts'ebeliso ea mantlha ea Trodioximony e joalo ka "catalyster" le setloholo sa lelakabe bakeng sa lisebelisoa tsa maiketsetso.
Indastering ea polyester, SB2o3 e ile ea sebelisoa pele e le sekoti. SB2O3 e sebelisoa haholo e le sekontiri sa polycondentara haholo bakeng sa tsela ea DMT le tsela ea PTA e tsoelang pele ebile e sebelisoa ka kakaretso le H3po4 kapa enjene ea eona.

(III). Mathata le Trioxide ea Antimany
SB2o3 e na le lisele tse futsanehileng ho Ethylene glycol, e nang le ente ea 4.04% ka 150 ° C.0 ° C.0 ° C. Ka hona, ha Glyne Glycol e sebelisoa ho lokisa moqomo, e fokolang e ka baka sekoti e ngata tsamaisong ea polymeria, 'me e tlisa mathata a ho thellela. Ho ntlafatsa ballo le ho senyeha ha SB2O3 ho Ethylene, hangata e amoheloa ho sebelisa mocheso o fetelletseng oa gelsile ho ea holimo ho 150 ° C. Leha ho le joalo, ka holimo ho 120 ° C, SB2O3 le Ethylene Glycol May Ethynony

II. Patlisiso le ts'ebeliso ea antimany Acetate
Mokhoa oa ho lokisa oa Antimony Acetate
Qalong, Ancetate Acentate e ne e lokisitsoe ka tereimore ea antimore a antimore asiti oa antimore le acetic animere ho monya metsi a hlahisoang ke karabelo e hlahisoang ke karabelo. Boleng ba sehlahisoa se felisitsoeng se fumanoeng ke mokhoa ona se ne se sa phahame, 'me ho ile ha nka lihora tse fetang 30 bakeng sa lihora tse 30 bakeng sa ho qhala asiti ea acetic. Hamorao, Antimony Actide o ne a hlophisoa ka ho bua ka tšepe, kapa antimony Tricoxide, kapa antimony Trioxide e nang le Acetic Atydride e sa tsoakoang.

1. Mokhoa oa antimetseng
Ka 1947, H. Schmidt et al. Ka Jeremane West Gert sb (Ch3coo) 3 ka ho araba sbcl3 le acetic anmydride. Foromo ea karabelo e tjena:
Sbcl3 + 3 (Ch3co) 2o == SB (Ch3coo) 3 + 3ch3con

2. Mokhoa oa koae oa tšepe
Ka 1954, Tapaybea ea Soviet Union e lokiselitsoeng sb (Ch3coo) ka ho etsa metallic le Peroxycyl ka tharollo ea anzene. Foromo ea karabelo ke:
Sb + (Ch3coo) 2 == sb (Ch3coo) 3

3. Mokhoa oa antimeny Trioxide
Ka 1957, F. Neerdel ea Jeremane West e sebelisitse SB2O3 ho arabela ka Acetic Ayhydride ho hlahisa SB (Ch3coo) 3.
Sb2o3 + 3 (Ch3co) 2o == 2SB (Ch3coo) 3
Bothata ba mokhoa ona ke hore likristale li kenyelletsa likoto tse kholo ebe u inama ka thata leboteng le kahare la thuto, le bakoang ke boleng bo bobe ba sehlahisoa le 'mala o futsanehileng.

4. Mokhoa oa ho bolaea menoana
Ho hlola mefokolo ea mokhoa o boletsoeng ka holimo, hangata ho kenngoa ka paterante hangata nakong ea karabelo ea sb2o3 le acetic anhydride. Mokhoa o ikhethileng oa boitokisetso o tjena:
. Patent e ne e sebelisa Xylene (Jo, P-X ...
(2) Ka 1973, Rephabliki ea Czech e qapile mokhoa oa ho hlahisa mokhoa oa Antimany o sebelisa Toluene joalo ka ea solt.

 

III. Papiso ea li-catalys tse tharo tse thehiloeng ho anitimony tse thehiloeng