WO1995020577A1 - Procede d'obtention d'acide nicotinique - Google Patents
Procede d'obtention d'acide nicotinique Download PDFInfo
- Publication number
- WO1995020577A1 WO1995020577A1 PCT/RU1995/000013 RU9500013W WO9520577A1 WO 1995020577 A1 WO1995020577 A1 WO 1995020577A1 RU 9500013 W RU9500013 W RU 9500013W WO 9520577 A1 WO9520577 A1 WO 9520577A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- acid
- fact
- temperature
- reaction
- πiκοlina
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/79—Acids; Esters
- C07D213/80—Acids; Esters in position 3
Definitions
- Liquid acidification / 3-pycline with the use of the above-listed oxidizing agents results in a high selectivity of 75-300 C.
- the essential disadvantages of these facilities should be removed from service. a large part, complex engineering, low productivity, more significant loss of material and other things ⁇ ⁇ 95/20577 ⁇ 95 / 00013
- Non-acidic acid production through oxidative ammylysis of ⁇ — pycline is achieved at a temperature of 350–400 C with a high and a high (86%)
- the catalyst is prepared by melting the mixture ⁇ admir0 ⁇ . and ⁇ 0 ⁇ ⁇ 50 and temperature of 1250 C for 3 hours. Specific profitability of such a method of catalysing is
- Acidic acid is the reaction product ⁇ ⁇ 95/20577 0 ⁇ 95 / 00013
- a small compliance with the optimal temperature of the inlet was interrupted by the reaction (250-290 ° ⁇ ) due to the attainment of the mains consumption of gas; With a decrease in the temperature of the reaction below 250 C, the activity of the catalyst decreases and there is a risk of the loss of nitrous oxide in the system. When the temperature of the reaction is increased above 290 C, the yield of acid is reduced, and thus, the volume of the product is reduced, it is less noticeable.
- the efficiency of the operation of the reaction is ensured by the optimal ratios of the components of the components supplied in the process.
- the activity of the catalyst decreases, and with an increase above 40, the selectivity decreases.
- the composition of the reactive mixture is analyzed by chromatographic.
- the catalyst is prepared by mixing ⁇ 0 personallyand an external product of oxalate vanadil with the following process. ADDITIVES ARE ADDED FROM WATER SALES. Specific Improvement
- the catalytic converter is 10–120 m / y.
- ⁇ Reactor catalysis is loaded in the form of granules of 0.5-1.0 mm.
- ⁇ ⁇ 95/20577 ⁇ / ⁇ 95 / 00013 under the given conditions, under these conditions, the maximum output of no acid is 86%.
- the acid product is 3-pyridine baldehyde and ⁇ 0 memo. Gas emissions contain C0 prison, 0 card and ⁇ wholly are not hazardous. ⁇ Play Condensedly, unreacted / 3-pycoline, / 3-pyridine baldehyde and water, which may be omitted, are provided for the non-sharing of water. Acidic acid, not contaminated with tar, is isolated from the vapor-gas mixture immediately after the reaction in the reaction vessel, where 160 ° C is maintained. Its non-chemical composition (% mol.): -99.5% acid, ⁇ -pyridine baldehyde -0.5. After the simple method of converting water out of its appearance and having met the pharmaceutical requirements. Melting process - 235.8-237.3 C.
- Example 5 Actual acid is produced in Example 5, with the exception of the fact that, at the same time, the temperature of the reaction is varied.
- the analysis of the catalytic converter, the reaction temperature, the other conditions and test results are given in the table.
- Example 5 Actual acid is obtained in Example 5, except that, in the meantime, the rate of interest is 0:: / -3.
- the test conditions and results are given in the table.
- Example 5 Actual acid is obtained in Example 5, with the exception of the fact that, at the same time, the rate of interest is varied ⁇ ⁇ 0: / 3.
- the test conditions and results are given in the table.
- the proposed method of obtaining acid can be used in a chemical industry.
- ⁇ ⁇ Composed B. The ideal blending mode is to convert it to catalysis. , ⁇ ⁇ Last. Location of the place. % yass m 2 / g ⁇ - ⁇ and ⁇ . interest rates ⁇ , 3,% ⁇ , c, c,
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyridine Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7519998A JPH09508379A (ja) | 1994-01-26 | 1995-01-26 | ニコチン酸の調製法 |
KR1019960703995A KR100269883B1 (ko) | 1994-01-26 | 1995-01-26 | 니코틴산의 제조방법 |
EP95911500A EP0747359B1 (en) | 1994-01-26 | 1995-01-26 | Method of obtaining nicotinic acid |
DE69516400T DE69516400T2 (de) | 1994-01-26 | 1995-01-26 | Verfahren zur herstellung von nikotinsäure |
US08/676,352 US5728837A (en) | 1994-01-26 | 1995-01-26 | Method of obtaining nicotinic acid |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU94003019 | 1994-01-26 | ||
RU9494003019A RU2049089C1 (ru) | 1994-01-26 | 1994-01-26 | Способ получения никотиновой кислоты |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995020577A1 true WO1995020577A1 (fr) | 1995-08-03 |
Family
ID=20151867
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/RU1995/000013 WO1995020577A1 (fr) | 1994-01-26 | 1995-01-26 | Procede d'obtention d'acide nicotinique |
Country Status (8)
Country | Link |
---|---|
US (1) | US5728837A (ru) |
EP (1) | EP0747359B1 (ru) |
JP (1) | JPH09508379A (ru) |
KR (1) | KR100269883B1 (ru) |
CN (1) | CN1046504C (ru) |
DE (1) | DE69516400T2 (ru) |
RU (1) | RU2049089C1 (ru) |
WO (1) | WO1995020577A1 (ru) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19839559A1 (de) * | 1998-09-01 | 2000-03-02 | Degussa | Verfahren zur Herstellung von Nikotinsäure |
TWI263637B (en) * | 2004-04-05 | 2006-10-11 | Chang Chun Petrochemical Co | Process for preparing nicotinic acid and catalyst used in the method |
CN100386317C (zh) * | 2004-04-08 | 2008-05-07 | 长春石油化学股份有限公司 | 烟碱酸的制造方法及该方法所用的触媒 |
DE102004030163A1 (de) * | 2004-06-22 | 2006-01-19 | Basf Ag | Verfahren zur Reinigung von Nicotinsäure |
CA2581706A1 (en) * | 2004-10-01 | 2006-04-20 | William Barry Thomas | Process for producing heteroaromatic carboxylic acids |
EP2428505B1 (en) * | 2010-09-13 | 2016-08-10 | Jubilant Life Sciences Limited | Process for producing pyridine carboxylic acids |
CN103467226B (zh) * | 2013-08-12 | 2015-08-05 | 浙江工业大学 | 一种选择性催化氧化烷基芳香化合物合成芳香羧酸的方法 |
CN104109116B (zh) * | 2014-06-11 | 2016-05-18 | 浙江工业大学 | 一步空气催化氧化合成吡啶甲酸类化合物的方法及其装置 |
CN104402812A (zh) * | 2014-10-28 | 2015-03-11 | 常州大学 | 一种合成吡啶甲酸的方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1940320A1 (de) * | 1969-07-28 | 1971-02-25 | Teijin Chemicals Ltd | Verfahren zur Herstellung von Pyridincarbonsaeuren |
CH532578A (fr) * | 1970-12-30 | 1973-01-15 | Daicel Ltd | Procédé pour la préparation d'acides carboxyliques dérivés de la pyridine |
US4001257A (en) * | 1972-12-02 | 1977-01-04 | Nippon Soda Company Limited | Process for producing nicotinic acid |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2586555A (en) * | 1950-05-18 | 1952-02-19 | Allied Chem & Dye Corp | Process for preparing pyridine carboxylic acids |
-
1994
- 1994-01-26 RU RU9494003019A patent/RU2049089C1/ru not_active IP Right Cessation
-
1995
- 1995-01-26 WO PCT/RU1995/000013 patent/WO1995020577A1/ru active IP Right Grant
- 1995-01-26 JP JP7519998A patent/JPH09508379A/ja active Pending
- 1995-01-26 DE DE69516400T patent/DE69516400T2/de not_active Expired - Fee Related
- 1995-01-26 EP EP95911500A patent/EP0747359B1/en not_active Expired - Lifetime
- 1995-01-26 KR KR1019960703995A patent/KR100269883B1/ko not_active IP Right Cessation
- 1995-01-26 CN CN95191372A patent/CN1046504C/zh not_active Expired - Fee Related
- 1995-01-26 US US08/676,352 patent/US5728837A/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1940320A1 (de) * | 1969-07-28 | 1971-02-25 | Teijin Chemicals Ltd | Verfahren zur Herstellung von Pyridincarbonsaeuren |
CH543510A (de) * | 1969-07-28 | 1973-10-31 | Teijin Chemicals Ltd | Verfahren zur Herstellung von Pyridincarbonsäuren |
CH532578A (fr) * | 1970-12-30 | 1973-01-15 | Daicel Ltd | Procédé pour la préparation d'acides carboxyliques dérivés de la pyridine |
GB1368309A (en) * | 1970-12-30 | 1974-09-25 | Daicel Ltd | Process for producing a pyridine carboxylic acid |
US4001257A (en) * | 1972-12-02 | 1977-01-04 | Nippon Soda Company Limited | Process for producing nicotinic acid |
Also Published As
Publication number | Publication date |
---|---|
EP0747359A1 (en) | 1996-12-11 |
KR100269883B1 (ko) | 2001-11-30 |
CN1139922A (zh) | 1997-01-08 |
DE69516400T2 (de) | 2000-11-09 |
EP0747359A4 (en) | 1997-02-24 |
DE69516400D1 (de) | 2000-05-25 |
US5728837A (en) | 1998-03-17 |
JPH09508379A (ja) | 1997-08-26 |
CN1046504C (zh) | 1999-11-17 |
EP0747359B1 (en) | 2000-04-19 |
RU2049089C1 (ru) | 1995-11-27 |
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