Page 175 - 《精细化工》2023年第4期

す 40 ࢤす 4 ᱌ ㇫ ㏳ ࡃ ጒ Vol.40, No.4
20 23 Ꭱ 4 ᰵ FINE CHEMICALS Apr. 2023

יࡃ̻ܳ⻨᣽㏜ឭᱜ
VO /AlPO יࡃݯव᜽ࣷڣיࡃ㠜㓌ധࡃࣺᏁᕔ㘪
x
4

*
ᱻ䉢䉑喑ᱻᮄᬚ喑⩝ ⋈喑ᱻ䛾㣟喑䗢ྤཉ喑㦐 卼
喍ڝጋ⤳ጒ๔႓ ⴠ⇦ࡃጒ႓䮏喑⩅㖰 ڝጋ 730050喎

ᦅ㺮喟Вᐯ͆䚴䨊̻⸤䚥ͧ࣌᫆喑⻨ၽ⋟Ҁ 1-̮ധ-3-⩟ധৗਾ⏡⯽喍[Bmim]Br喎̻ιₐ͆㘧ͧڞ὎Წݯव᜽
γ AlPO 4 喑䔈㔹䛴⩕Ⅱ☚∂ᄳ V 2 O 5 䉌䒪λ AlPO 4 䒪Ҁݣิγ VO x /AlPO 4 יࡃݯȡ䛴⩕ XRDȠSEMȠTEMȠMappingȠ
FTIRȠN 2 ॥䭱-㙞䭱ȠXPS ᄦיࡃݯ䔈㵹γ㶕ᒮ喑㔰ᄌγڣౕ㠜㓌ധࡃࣺᏁ͚⮱יࡃᕔ㘪ȡ㐀᳉㶕ᬻ喑䦿⅔ࡃ
4+
➖䉌䒪䛼ͧ 16%喍В V 2 O 5 হ AlPO 4 ⮱ᕨ䉕䛼ͧധ۳喑̸ह喎⮱יࡃݯڤᰶᰭ็́ܳጰ౴࠭⮱ V ≨ᕔ͚ᓰȠ๾
वࣺᏁ⮱䚥ᕔᓛ⣜ධ喑ౕיࡃݯ⩕䛼ͧ 0.2 g喑㠜⩕䛼 4 mL喑䉕䛼ܳ᪝ 30%⮱ H 2 O 2 ⩕䛼 12.5 mL喑Ά㙵⩕䛼 15 mL喑
ࣺᏁ⍖Ꮣ 70 Ď喑ࣺᏁᬣ䬡 7 h ⮱᲎У̸喑㠜䒙ࡃ⢴ͧ 53.4%喑㠜䚇䔶᠖ᕔͧ 98.4%ȡധλיࡃݯ㶕ᒮܳᲽࣷᕔ
㘪䃱ѝ喑ᣕ≸יࡃࣺᏁᱧ⤳᭜Вϟᵥ⅔ࡃᱧ⤳ͧͨ喑㜗⩞ധᱧ⤳ͧ䒲ȡ
ڠ䩛䃺喟VO x /AlPO 4 喠㠜喠㠜䚇喠㓌ࡃ喠㜗⩞ധ喠יࡃឭᱜ
͚ఫܳㆨत喟O643.37喠TQ243.12 ᪴⡛ᴴ䃳⴮喟A ᪴」㑃त喟1003-5214 (2023) 04-0861-08

Synthesis of VO x/AlPO 4 catalyst and its catalytic performance
in hydroxylation of benzene

*
LI Guixian, LI Hanxu, TIAN Tao, LI Jinlian, SHAO Tingna, DONG Peng
喍School of Petrochemical Engineering, Langzhou University of Technology, Lanzhou 730050, Gansu, China喎

Abstract: A series of VO x/AlPO 4 catalysts were synthesized from V 2O 5 and carrier AlPO 4, which was
prepared from aluminum isopropanol and phosphoric acid using ionic liquid [Bmim]Br and di-n-propylamine
as co-template. The catalysts obtained were then characterized by XRD, SEM, TEM, Mapping, FTIR, N 2
adsorption-desorption and XPS, and evaluated for their catalytic performance in benzene hydroxylation.
The results showed that the catalyst with a vanadium oxide loading of 16% (based on the total mass of
4+
V 2O 5 and AlPO 4, the same below) displayed the most uniformly distributed V active centers, an acidic
microenvironment suitable for the reaction. Under the conditions of catalyst dosage 0.2 g, benzene 4 mL,
hydrogen peroxide with a mass fraction of 30% 12.5 mL, acetonitrile 15 mL, reaction temperature 70 Ď
and reaction time 7 h, the conversion rate of benzene was 53.4% and the selectivity of phenol reached
98.4%. Data from catalyst characterization and performance evaluation suggested that the reaction was
mainly catalyzed by nucleophilic oxidation, complemented by free radical mechanism.
Key words: VO x/AlPO 4; benzene; phenol; hydroxylation; radical; catalysis technology

㠜䚇᭜ⴠ⇦ࡃጒ⩌ϔ͚̭⻺䛺㺮⮱ᰶᱧϔ৮喑 䚇⮱፥⩕᫦∂ͧᐯ͆㠜∂喑⩞ₑ∂⩌ϔ⮱㠜䚇㏓ࢍ
᭜व᜽䚇䛈ᴾ㘯Ƞጞڲ䚝㘧Ƞࣹ䚇 AȠጞι䚥Ƞ㠜 㠜䚇ᕨϔ䛼⮱ 95%喑㔹͚ప䛴⩕ₑ∂व᜽⮱㠜䚇㏓
[2]
㘧Ƞ☤ധ䚇ВࣷⅡᲕ䚥ぶ⮱䛺㺮ݺ侞Ҁ喑ࢠౕव᜽ ࢍ͚ప㠜䚇ᕨϔ䛼⮱ 80% ȡ⩞λ㠜⣜͚ CÿH 䩛
[2]
㏑㐡Ƞव᜽ᾎ㘣Ƞൾ᫆Ƞࡨ㢜Ƞۉ㢜Ƞ仆᫆Ƞᴀ᫆ ऄ๔ ʌ 䩛⮱ᑧ҉⩕߈ᒞ৺喑䉸εγ㠜⣜倅⽠Ⴧᕔ 喑
[1]
Вࣷ⊯᫆ぶ᫦䲏ڤᰶᎬ∈⮱Ꮑ⩕ ȡጒ̷͇⩌ϔ㠜 ࢠ㠜ܳၽ䯫В㷘≨ࡃ喠㔹ϔ➖㠜䚇ܳၽ͚⮱㓌ധ㘪

ᩣ⽬ᬒ᱌喟2022-08-11; Ⴧ⩕ᬒ᱌喟2022-10-24; DOI: 10.13550/j.jxhg.20220747
ധ䛾䶦Ⱋ喟⩅㖰Ⱞ䛺๔⻾ឭ̀䶦喍19ZD2GD001喎
҉㔲キϸ喟ᱻ䉢䉑喍1966ÿ喎喑⩤喑᪆ᢵ喑E-mail喟lgxwyf@163.comȡ㖁㈨ϧ喟㦐 卼喍1986ÿ喎喑⩤喑䃟ጵ喑E-mail喟dongpeng06190318@
126.comȡ