CN1041710A - 氨氧化实验用的催化剂 - Google Patents
氨氧化实验用的催化剂 Download PDFInfo
- Publication number
- CN1041710A CN1041710A CN88105136A CN88105136A CN1041710A CN 1041710 A CN1041710 A CN 1041710A CN 88105136 A CN88105136 A CN 88105136A CN 88105136 A CN88105136 A CN 88105136A CN 1041710 A CN1041710 A CN 1041710A
- Authority
- CN
- China
- Prior art keywords
- catalyzer
- experiment
- ammonia oxidation
- oxide
- present
- Prior art date
- Legal status (The legal status 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 status listed.)
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title abstract description 26
- 238000002474 experimental method Methods 0.000 title abstract description 15
- 229910021529 ammonia Inorganic materials 0.000 title abstract description 13
- 230000003647 oxidation Effects 0.000 title abstract description 12
- 238000007254 oxidation reaction Methods 0.000 title abstract description 12
- 229910000416 bismuth oxide Inorganic materials 0.000 claims abstract description 8
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910000428 cobalt oxide Inorganic materials 0.000 claims abstract description 5
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 claims abstract description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 5
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000003054 catalyst Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- OMBRFUXPXNIUCZ-UHFFFAOYSA-N dioxidonitrogen(1+) Chemical compound O=[N+]=O OMBRFUXPXNIUCZ-UHFFFAOYSA-N 0.000 abstract description 3
- 244000208060 Lawsonia inermis Species 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 8
- 229910052697 platinum Inorganic materials 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 241000282941 Rangifer tarandus Species 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 238000005915 ammonolysis reaction Methods 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000002223 garnet Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/02—Preparation, purification or separation of ammonia
- C01C1/04—Preparation of ammonia by synthesis in the gas phase
- C01C1/0405—Preparation of ammonia by synthesis in the gas phase from N2 and H2 in presence of a catalyst
- C01C1/0411—Preparation of ammonia by synthesis in the gas phase from N2 and H2 in presence of a catalyst characterised by the catalyst
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
Abstract
本发明属于一种催化剂，特别是用于氨氧化实验的催化剂。它是由氧化铁和氧化铋或者氧化钴和氧化铋按一定的比例，配制成的。在氨氧化演出实验中，加入本发明作为催化剂，在2-3分钟内，就可看到棕红色的二氧化氮生成，效果明显，成本低廉，适合中学化学实验课使用。
Description
本发明属于一种催化剂，特别是用于氨氧化实验用的催化剂。
氨氧化演示实验是高中化学教材中的重点，也是一个难度较大的实验。这个实验告诉学生，氨气和氧气在催化剂铂丝加热的作用下，能生成一氧化氮，一氧化氮不稳，极易被氧化，瞬时能变成二氧化氮。在理论上，二氧化氮是呈棕红色的，但在实际实验中，学生很难看到棕红色，只能勉强地看到淡黄色。这说明在铂丝加热这种催化剂的作用下，氨氧化是不彻底、不完全的，这就是所说的难点。同时，由于该实验所选用的催化剂是铂丝，价格昂贵，多数中学，特别是乡村学校难以解决。
本发明的任务是：提供一种能使氨氧化效果明显、成本低廉的催化剂。
本发明的任务是采用下列配方实现的：它是由3～5%的氧化铋，95～97%的氧化铁或氧化钴所组成、加热后用于氨气和氧气的反应：
在2～3分钟后，即可看到棕红色现象。
本发明与现有的催化剂铂丝相比，具有以下两点优点：
1、能使氨氧化反应迅速、彻底、效果明显;
2、成本低廉。
下面结合附图详细描述在采用本发明作催化剂时，氨氧化演示实验。
图1是采用本发明作催化剂时的氨氧化演示实验流程图。
在本实施例中，本发明的配方为：95%的氧化铁，5%的氧化铋。
演示实验的流程为：
①将两个干燥管4抽干，装入无水氯化钙CaCl2，起干燥作用;
②在广口瓶2内装入1/3瓶，浓度为1∶1的氨水，左端的鼓气球管1应在液面上10毫米处;
③向量杯6内倒入40毫升的石蕊溶液，作为检验试剂;
④在氧化管3内装入本发明和500W电阻丝;
⑤按图中所示将胶塞导管与容器连接严密;
⑥给电阻丝通电，至出现暗红色为止;
⑦鼓气球1鼓入空气，氨气和空气中的氧气在氧化管3内反应，可看到烧瓶4内有大量的棕红色NO2气体生成，片刻量杯6内的石蕊试剂由紫色变成红色。
本发明的配方还可以是：97%的氧化钴，3%的氧化铋。重复上述实验，仍可看到烧瓶4内有大量的棕红色NO2气体生成。
Claims (3)
1、一种用于氨氧化催化剂，其特征是：它是由3～5%的氧化铋、95～97%的氧化铁或氧化钴所组成。
2、按照权利要求1所述的催化剂，其特征是：它是由5%的氧化铋、95%的氧化铁所组成。
3、按照权利要求1所述的催化剂，其特征是：它是由3%的氧化铋，97%的氧化钴所组成。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN88105136A CN1041710A (zh) | 1988-10-07 | 1988-10-07 | 氨氧化实验用的催化剂 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN88105136A CN1041710A (zh) | 1988-10-07 | 1988-10-07 | 氨氧化实验用的催化剂 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1041710A true CN1041710A (zh) | 1990-05-02 |
Family
ID=4833364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN88105136A Pending CN1041710A (zh) | 1988-10-07 | 1988-10-07 | 氨氧化实验用的催化剂 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1041710A (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101757953B (zh) * | 2008-12-23 | 2016-09-07 | 舒德化学催化剂意大利有限责任公司 | 氨氧化催化剂 |
-
1988
- 1988-10-07 CN CN88105136A patent/CN1041710A/zh active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101757953B (zh) * | 2008-12-23 | 2016-09-07 | 舒德化学催化剂意大利有限责任公司 | 氨氧化催化剂 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |