Anhydride ea Maleic CAS: 108-31-6

tlhaho

Boemo ba ho qhibiliha 51-56°C (ha ho tjheseletsa)

Boemo ba ho belisa 200°C (lit.)

Boima ba 1.48 Boima ba bongata 700-800kg/m3

Boima ba mouoane 3.4 (vsair)

Khatello ea mouoane 0.16mmHg (20°C)

Lenane la refractive 1.4688 (khakanyo)

Sebaka sa ho phatloha ha mollo 218°F

Anhydride ea Maleic, e tsejoang hape e le "anhydride ea Maleic", ke anhydride ea asiti ea maleic. Ke ntho e tiileng e se nang 'mala kapa e tšoeu e nang le tatso e bolila mochesong oa kamore, e nang le foromo ea limolek'hule ea C4H2O3. Boima ba limolek'hule 98.06. Likristale tse bōpehileng joaloka nale li fumanoa ho tsoa ho chloroform kapa ether. Ntlha ea ho qhibiliha 60℃, ntlha ea ho belisa 82℃ (1.Chemicalbook8665kPa), tekanyo e lekanyelitsoeng 1.31460. E qhibiliha hanyane ka har'a acetone, chloroform, ether, e qhibilihang hanyane ka har'a ether ea petroleum. E qhibiliha ka metsing ho etsa cis-butenedioic acid, e qhibiliha ka har'a joala ho etsa li-ester, 'me e ka arabela ka metsoako e nang le maqhama a mabeli a kopaneng ho theha motsoako oa diene. E chefo, e halefisa haholo lera la mucous.

Tšebeliso:

E sebelisoa e le thepa e tala bakeng sa tlhahiso ea 1,4-butanediol, γ-butyrolactone, tetrahydrofuran, succinic acid, resin ea polyester e sa tlalang, resin ea alkyd, jj. E boetse e sebelisoa meriana le chefo e bolaeang likokoanyana.

Mekhoa ea tlhahiso

Mekhoa e meholo ea tlhahiso ea maleic anhydride ke benzene oxidation, butene oxidation le n-butane oxidation, empa benzene oxidation e ntse e le eona mokhoa o ka sehloohong. 1. Mokhoa oa ho etsa oxidation oa benzene Benzene e feta karabelong ea oxidation betheng e tsitsitseng tlas'a ts'ebetso ea V-Mo-P series catalyst ho hlahisa maleic anhydride, 'me mocheso oa karabelo ke 365°C (bethe ea karabelo e ka boela ea sebelisa bethe e belang, empa tšebeliso ea Chemicalbook e phahame). Ebe e monngoa ka metsi ho hlahisa maleic acid, ebe ho etsoa metsi a mangata le ho qhalana ha azeotropic, 'me sehlahisoa se felileng se fumanoa ka ho hohla. 2. Mokhoa oa ho etsa oxidation oa butane (kapa butene) Butane (kapa butene) e oxidation ke moea kapa oksijene tlas'a ts'ebetso ea V-Mo catalyst ho hlahisa maleic anhydride, 'me mocheso oa karabelo ke 350-400°C. Ebe e monngoa ke metsi, e ntšoa metsi 'me e hloekisitsoe ho fumana sehlahisoa se felileng.

Mokhoa oa puisano

Eason Peng

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