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Oloa

Dibenzoylmethane (DBM)

Faʻamatalaga puʻupuʻu:

Igoa: Dibenzoylmethane (DBM)
CAS LEAI : 120-46-7
Fuafua Molecular: C15H12O2
Mamafa Molecular: 224.25
Fausaga faʻavae:

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Oloa Faʻamatalaga

Pine o oloa

Lisi o faʻasino igoa:

Foliga Vaaia: malamalama samasama crystalline efuefu

Mataupu: ≥ 99%

Vaʻaia le suavai: 77-79 ° C

Punavai: 219-221 ° CMM Hg

Malamalama uila: 219-221 ° C / 18mm

Faatonuga:

1. E lautele faʻaaogaina o se ituaiga o nontoxic vevela faʻamautuina mo PVC ma 1,3-diphenyl acrylonitrile (DBM). Avea o se ausilali fou faʻamafanafana vevela mo PVC, e maualuga transmittance, leai-oona ma tofo; e mafai ona faʻaaogaina ma mautu poʻo suavaia kalama / metala paʻepaʻe, barium / metala paʻepaʻe ma isi vevela stabilizers, lea e mafai ona sili ona faʻaleleia le amataga valivali, manino, umi-tumau mautu o PVC, faʻapea foi ma timuga ma le "metalaʻila mu" i le taimi o gaioiga. Lautele faʻaaogaina i fomaʻi, meaai afifiina ma isi e le oona ona manino manino oloa PVC (pei o fagu PVC, ie, ata manino, ma isi).

2. Faʻatomuaga o kalisiu ma metala paʻepaʻu faʻamautuina: (faʻamautu masani e pei o faʻamalulu masima faʻamama ma cadmium faʻamautu masima) o loʻo i ai ni mea le lelei o le le malamalama lelei, amataga lanu eseʻese, faigofie koluse faʻaleagaina ma vailaʻau oʻona. Metala paʻepaʻe ma cadmium e le oona stabilizers. E i ai sili lelei vevela mautu ma lubricity, sili ona lelei valivali ma lanu mautu.

O le faʻamautuina vevela o mama mama / metala paʻepaʻe stabilizer e matitiva, o lea o le tele o vailaʻau e tatau ona tuʻufaʻatasia e tusa ma le gaosi tekonolosi ma le faʻaogaina o le oloa. Faʻatasi ai ma fesoasoani fesoasoani, β - diketones (e tele lava i le stearoyl benzoyl methane ma le dibenzoyl methane) e manaʻomia tele i le calcium / zinc stabilite stabilizers.

Metotia gaosi

O le amataga gaosiga gaosiga o gaioiga e pei ona taʻua i lalo: faʻaaogaina mautu sodium methoxide pei o mea taua, acetophenone ma methyl benzoate na tali atu e Claisen faʻamafanafanaina i xylene ia maua dibenzoylmethane. Talu ai o le pauta sodium methoxide efuefu e mu gofie ma pa, ma e faigofie ona pala pe a feiloaʻi ma le vai, e tatau ona faʻamaligiina le solvent aʻo leʻi faʻaopopoina, ona faʻapipiʻi ai lea o le sodium methoxide mautu i lalo o le puipuiga o le nitrogen peʻa maeʻa faʻamalulu i le 35 ℃. O le tali atu gaioiga e tatau ona puipuia e le nitrogen, ma le faʻaaogaina o le sodium sodium methoxide o loʻo i ai le tele ono lamatia saogalemu ma tele malosiaga faʻaaogaina. O le molar ratio o le acetophenone: methyl benzoate: o le sodium methoxide mautu o le 1: 1.2: 1.29. O le averesi e tasi le taimi na maua ai le oloa e 80%, ae o le aofaʻi na maua o le tina ava e 85.5%.

O le gaioiga fou gaosiga tele e faapea: 3000l xylene solvent ua faʻaopopoina i le reactor, 215kg solid sodium hydroxide ua faʻaopoopoina, faʻaosooso ua amata, siitia le vevela i le 133 ℃, ma o le maualalo vaega laʻititi o le vai ua faʻaalu; ona faʻaopopo lea o le 765kg methyl benzoate, siʻi le vevela i le 137 ℃, faʻaopopo le 500kg acetophenone i le paʻu, ma o le vevela o loʻo taofia i le vevela ile potu 137-139 ℃. Faʻatasi ai ma le faʻaopopoina o le acetophenone, o le feed vai faʻasolosolo faʻateleina avea mafiafia. O le-methanol oloa na aveʻesea mai le tali atu gaioiga ma le tali faʻaauau i le itu lelei. O le faʻafefiloi solvent o methanol ma xylene ua faʻapusa. Taofi mo le 2 itula pe a pa'ū. A toetoe a leai se distillate, o le tali faʻaiuga.

Teuina: 25kg / ato.

Teuina o puipuiga: faleoloa i fale malulu, mago ma lelei faʻaputu fale teu oloa.

Malosiaga faʻaletausaga: 1000 tone / tausaga


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