专利摘要:
The catalyst composition has a composition represented by the formula:… A0.1 B0.02-1 Mo12 Bi0.5-10 Fe0.5-10 Na0-3 P0-2 Og… wherein A is at least one element selected from cerium, lanthanum, neodymium, praseodymium, samarium, europium, and gadolinium, B is at least one element selected from potassium, rubidium and caesium, and g is the number of oxygen atoms required to satisfy the valence requirements of the other elements present, and is supported on silica. The catalyst composition is used in the production of acrolein, methacrolein, 1,3-butadiene, acrylonitrile or methacrylonitrile by the oxidation or ammoxidation of propylene, isobutylene, tert-butanol or 1-butene.
公开号:SU1217244A3
申请号:SU823505000
申请日:1982-10-19
公开日:1986-03-07
发明作者:Аоки Кинитоси;Хонда Макото;Дозоно Тетсуро;Катсумата Тсутому
申请人:Асахи Касеи Когио Кабусики Кайся (Фирма);
IPC主号:
专利说明:

The invention relates to the field of catalysts for the oxidation and oxidative ammoniaol of olefins.
The aim of the invention is to increase the activity of the catalyst due to the additional content in the active part of the catalyst of a metal selected from the group comprising cerium, lanthanum, neodymium, praseodymium, samarium, europium, gadolinium or their mixture at a certain ratio of components.
The goal is also to increase the stability of the catalysts, due to the additional content in the active part of the catalyst of sodium and / or phosphorus in a certain amount.
Example 1. Get the catalyst containing 50 wt.% The active part having the composition of the following empirical formula
%, bcHot5Mo, gWH ,, ,,, Og,
and 50 wt.% silica.
To 166.7 g of a silica sol containing 30 wt.% W.O.G, 0.59 g of 85% phosphoric acid is added with stirring, then a solution of 36.2 g of ammonium heptamolybdate (NH4), 4 HjO, dissolved in 90 g of water and a mixed solution of 19.84 g of bismuth nitrate Bi (N0,), 46.61 g of iron nitrate (Ø) .FeCNOjX, 70 g of cerium nitrate Ce (NO,),: 6H. b and 0.1 g of potassium nitrate (KNO), previously dissolved in 33 g of 13.3 wt.% nitric acid. The raw material slurry thus obtained is sent to a spray dryer of a continuous type and dried at 200 C. The drying of the slurry is carried out using a spraying device equipped with a disc-shaped rotor installed in the upper, central part of the dryer. The obtained dried powders are sent to a tunnel-type kiln, calcined first at 400 ° C for one hour, and then fired at 690 ° C for 2 hours.
Using the technology described above, the catalysts provided by the invention and the control catalysts are prepared, and their compositions are given in Table. 1 and 2. For the sources of lanthanum, neodymium, praseodymium, samari, europium, gadrini, rubidium, cesium and sodium, the corresponding nitrates are used in the examples. The firing conditions are changed accordingly. as shown in table. 1 and 2.
Example 2. Ammoxidation of propylene.
2 g catalysts of various compositions are loaded into a Bikor glass reaction tube with an internal diameter of 8 mm, and a gas mixture of 6% by volume of propylene (the volume ratio between propylene: ammonia: oxygen: nitrogen is
ten
20
1: 1.25: 1.9: 12.5) is passed through the tube at a flow rate of 2.1 l / h (recalculated to normal temperature and pressure) at 460 C and atmospheric pressure. The result of this reaction is evaluated according to two indices — the yield of acrylonitrile and the productivity of acryloetrile, the values of which are given in tabLb 1. jc Acrylonitrile yield:
, moth prune e nogch5 acrylonite sludge moth introduced propylene
thirty
35
40
X 100.
Acrylo-I nitrile productivity:
rl wSeSJIPJIX JiilPJlP-SEPSG SIP ™ amount of catalyst used (g)
X 100 X reaction time (h).
Example 3. Ammo-oxidation of isobutylene (or tertiary butanol).
Catalysts of various compositions in the amount of 1 g are loaded into a Vicor glass reaction tube with an internal diameter of B mm, and a gas mixture of 6% by volume of isobutylene (the volume ratio between isobutylene, ammonia, oxygen, and nitrogen is 5: 2.5: 11 , 7) is passed through a tube at a flow rate of 2.4 l / h (recalculated at normal temperature and pressure) at atmospheric pressure. The effect of this reaction is assessed by two indicators: the yield of acrylonitrile and the productivity of acrylonitrile, the values of which are given in Table. 2
The output of methacrylonitrile: 55 moles obtained methacryl "lonitrile (g)
i (/ a) -X
moth entered isobutylene
X 100
50
ri, europium, gadrini, rubidi, cesium and sodium in the examples use the corresponding nitrates. The firing conditions are changed accordingly. as shown in table. 1 and 2.
Example 2. Ammoxidation of propylene.
2 g catalysts of various compositions are loaded into a Bikor glass reaction tube with an internal diameter of 8 mm, and a gas mixture of 6% by volume of propylene (the volume ratio between propylene: ammonia: oxygen: nitrogen is
Methacrylonitrile productivity:
weight of methacryne obtained, lonitrile (g)
K (h) X
amount of catalyst used (g) X 100 X reaction time (h).
Example4. Oxidation of propylene.
 Catalyst containing 50 May.%
the active part of the composition
Clo.t3,076 I ° uB447F 6., 30g
And 50 wt.% SiOj, in an amount of 1., 5 g is loaded into a Vicor glass reaction tube with an internal diameter of 8 mm, and a gas mixture of 6 vol.% Propylene (the volume ratio between propylene, oxygen, water vapor, nitrogen is 1 : 1.9: 3: 10.8) is passed through a tube at a flow rate of 2.3 l / h (calculated at normal temperature and pressure) at 380 ° C and atmospheric pressure.
acrolein
 received
acrolein
moles of injected propylene
X 100 85.8%.
Example 5. The oxidation of isobutylene.
The catalyst containing 50 May.% Active part of the composition
Vg ,, Fe. ., P .0 og and
H ,,
Xie, Kg., Mo, g
50 wt.% Sic., In. amount of 1 g is loaded into a Vicor glass reaction tube with an internal diameter of 8 mm, and gaz12172444
This mixture of 3 vol.% isobutylene (volume ratio of isobutylene, oxygen, water vapor, and nitrogen is .1: 2: 3: 27.3) is passed through a 5 tube at a flow rate of 2.4 l / h (calculated with normal temperature and pressure) at 400 ° C and atmospheric
pressure.
Methacrolein yield
moth received
methacrolein
moth injected isobutylene
X 100 82.6%.
Example 6. The oxidation of 1-butylene.
A catalyst having the composition specified in example 4, in an amount of 1 g, is loaded into a Vicor reaction tube with an internal diameter of 8 mm, and a gas mixture of 6% by volume of 1-butylene (volume ratio of 1-butylene, oxygen, water vapor, nitrogen is 1: 1.8: 3: 10.9), passed through a tube at a flow rate of 2.6 l / h (calculated at normal temperature and pressure) at 370 ° C and atmospheric pressure.
Output 1, 3-butadi.ena
moth obtained 1,3-butadiene
moth entered 1-bootklena
X 100 89.0%.
In tab. 3 presents the results showing the stability of the catalyst according to the invention in the process of oxidative ammonolysis of propylene.
C
ON
in
OO
in
OO
in
OO
o
OO
00
CNJ
m
00
v) 00
SL
CO
a
Ltd
ON-oh
X)
about sh
about sh
about sh
oh oh
oh oh
about
g
r cho
g
vO
about 00
go
gp
cm
CS
oh oh
wh
oh oh
cJF o
about
00
about
0)
and
 cm
权利要求:
Claims (2)
[1]
1. CATALYST FOR THE OXIDATION AND OXIDATIVE AMMONOLYSIS OF SC-C ^ OLEFINS, containing the active part, including the alkali metal potassium, rubidium, cesium, molybdenum, bismuth ^ iron and oxygen, and the carrier is silicon dioxide, characterized in that, in order to increase activity catalyst, the active part of it additionally contains a metal selected from the group consisting of cerium, lanthanum, neodymium, praseodymium, samarium, europium, gadolinium or a mixture thereof, and its composition corresponds to the empirical formula A a B b Mo 'where A is a metal selected from group including erya, Lanthanum, neodymium, praseodymium, samarium, europium, Gado * lines or their mixture;
In ~ alkali metal - potassium, rubidium, cesium, a = 0.1-4.0;
B = 0.02-1, 0;
s = 0.5-9.2;
d = 3.0-10.0;
g is the number of oxygen atoms necessary to satisfy the valency of the incoming elements, with the following content of components, May.%:
Active part 30-70
Media Else
[2]
2. The catalyst according to claim 1, characterized in that, in order to increase the stability of the catalyst, its active part additionally contains sodium and / or phosphorus and its composition corresponds to the empirical formula A tJ B b Mo ft Bi ^ FejNa ^ Oj, or A a B b Mo u Bi c FejP O., or A a4 Mo < Z Bi c Fe d E e ° "> where E is sodium and phosphorus;
e - 2.2-3.3;
A, B, a, b, c, d, g have the meanings indicated above.
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同族专利:
公开号 | 公开日
DE3261712D1|1985-02-07|
JPS5867349A|1983-04-21|
JPS6126419B2|1986-06-20|
EP0077675B1|1984-12-27|
EP0077675A1|1983-04-27|
US4443556A|1984-04-17|
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法律状态:
优先权:
申请号 | 申请日 | 专利标题
JP56166423A|JPS6126419B2|1981-10-20|1981-10-20|
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