SU493241A1 - Ammonia synthesis catalyst - Google Patents

Ammonia synthesis catalyst

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Publication number
SU493241A1
SU493241A1 SU1943286A SU1943286A SU493241A1 SU 493241 A1 SU493241 A1 SU 493241A1 SU 1943286 A SU1943286 A SU 1943286A SU 1943286 A SU1943286 A SU 1943286A SU 493241 A1 SU493241 A1 SU 493241A1
Authority
SU
USSR - Soviet Union
Prior art keywords
catalyst
increase
activity
nickel
ammonia
Prior art date
Application number
SU1943286A
Other languages
Russian (ru)
Inventor
Виктор Эммануилович Вассерберг
Алла Владимировна Крылова
Гайрат Кабилович Султанбеков
Чыонг Занг Чинь
Серафим Степанович Лачинов
Николай Семенович Торочешнков
Original Assignee
Московский Ордена Ленина И Ордена Трудового Красного Знамени Химикотехнологический Институт Им.Д.И.Менделеева
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Московский Ордена Ленина И Ордена Трудового Красного Знамени Химикотехнологический Институт Им.Д.И.Менделеева filed Critical Московский Ордена Ленина И Ордена Трудового Красного Знамени Химикотехнологический Институт Им.Д.И.Менделеева
Priority to SU1943286A priority Critical patent/SU493241A1/en
Application granted granted Critical
Publication of SU493241A1 publication Critical patent/SU493241A1/en

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Description

(54) CATALYST FOR AMMONIA SYNTHESIS

molded water; 5.6 g of A1 (NO3) 3 -9H2O dissolve 3 51 ml of distilled water. The concentration of NHiOH is 10%.

The sedimentation is carried out by stirring the mixture at random with stirring, at ambient temperature and final pH 9. The precipitates are washed with distilled water until they are removed. The SO3 is filtered, and then the precipitate is transferred to a cup, where a solution of Ca {CH3SOO) 2 is added to the cup under constant stirring, dissolved in distilled water in the amount necessary to completely dissolve the sample.

Then the catalyst is molded, dried at room temperature in air for 24 hours, then at 50 ° C for 8 hours. After that, the catalyst is dried in a drying cabinet at 140 ° C for 6 hours and calcined at 600 ° C.

The resulting catalyst is impregnated with an aqueous solution of (CH 2 COO) g (for 5 g of catalyst, 0.1 g of Ni (CH3COO) 2, dissolved in 3 ml

.000 hour- On:

(istilirovannogo water), dried and calcined at a temperature of 500 ° C for 4 hours, impregnated with an alcoholic solution of KOH (for i, OI28 g catalyst 0,018 g KOH solution in 3 ml of absolute alcohol), then; tub and calcined at 140 ° C for an hour.

The catalyst in the oxidized state has the following chemical composition, weight. %:

Reso

97 1.5

HAO3 0.5 CaO 0.3

K20

NiO 0.8

In tab. Figure 1 shows the values of the output of the Amshak at a pressure of 50 and 100 atm and a volumetric rate (15,000 hours on the proposed: analyzer (sample I) as compared with the conventional industrial catalyst CA-1.

Table 1

Example 2. A catalyst is prepared in the manner described in Example 1, prior to the nickel addition step. Instead of impregnating the catalyst with a nickel salt solution, carbonic nickel is adsorbed onto the catalyst from the gas phase. Carbonyl deposition is carried out in a vacuum unit at an Ni (CO) 4 evaporation temperature of -25 ° C and a catalyst temperature of -10 ° C. The carbonyl nickel adsorbed on the catalyst is decomposed in the presence of oxygen.

After application of the nickel additive, the sample is impregnated with an alcoholic KOH solution (see Example I), dried and calcined at 140 ° C for 4 hours. The catalyst in the oxidized state has the following chemical composition, weight. %:

scrubber 2 Fe2Oz

96 1.0 Aloz Cao 0.5

K20 0.3

Nio

2.15

Sample 3 Fe2Oz

97 1.0 ALOZ CaO 0.5

K20

0.3

Nio

1.4

In tab. 2 compared the activity of samples 25 1SiSA-1.

table 2

.000 hour- At:, am

The output of ammonia,%, depending on temperature, ° C

Claims (1)

  1. The increase in activity with the introduction of additional nickel at relatively low rates of aturah is of interest in connection with the methods of low-temperature catalysts with ammonia. The increase in activity is up to (gigantic due to an increase in specific activity, since the surface of the samples with; nickel addition and without nickel added prepared using the same method is the same. Formula of the invention for the synthesis of ammonia based on FegOs oxides , K2O and CaO, characterized in that, in order to increase the activity of the catalyst, it would additionally contain NiO in the following ratio of components, wt.%: P Q Base ABO3-3-3 K2O0.2-0.7 CaO0.3-2 NiO0.3 -3
SU1943286A 1973-07-02 1973-07-02 Ammonia synthesis catalyst SU493241A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1943286A SU493241A1 (en) 1973-07-02 1973-07-02 Ammonia synthesis catalyst

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1943286A SU493241A1 (en) 1973-07-02 1973-07-02 Ammonia synthesis catalyst

Publications (1)

Publication Number Publication Date
SU493241A1 true SU493241A1 (en) 1975-11-28

Family

ID=20559762

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1943286A SU493241A1 (en) 1973-07-02 1973-07-02 Ammonia synthesis catalyst

Country Status (1)

Country Link
SU (1) SU493241A1 (en)

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