WO2001077071A1 - Verfahren zur herstellung von ditaurin und seinen salzen - Google Patents
Verfahren zur herstellung von ditaurin und seinen salzen Download PDFInfo
- Publication number
- WO2001077071A1 WO2001077071A1 PCT/EP2001/003519 EP0103519W WO0177071A1 WO 2001077071 A1 WO2001077071 A1 WO 2001077071A1 EP 0103519 W EP0103519 W EP 0103519W WO 0177071 A1 WO0177071 A1 WO 0177071A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- taurine
- salts
- reaction
- process according
- range
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/02—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof
- C07C303/22—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof from sulfonic acids, by reactions not involving the formation of sulfo or halosulfonyl groups; from sulfonic halides by reactions not involving the formation of halosulfonyl groups
Definitions
- ditaurinate can be obtained from taurine and barium hydroxide by heating to 220 ° C for a long time (Chem. Ber. 7, 117 (1874)). Ditaurinate is also formed in the reaction of hydroxyethyl sulfonate with ammonia under pressure and at temperatures of 195 to 245 ° C. in a reaction time of 3 to 5 hours (DRP 612.994, DRP 646.707 and DD-A 219 023). Up to 33.7% of ditaurinate is produced in addition
- ditaurin or its salts or mixtures of ditaurinate and hydroxy- or haloethyl sulfonate are obtained which are difficult to separate and can therefore only be used as a mixture in subsequent reactions, which often leads to disturbances.
- a surprisingly simple process has now been found which makes ditaurinate from taurine accessible in a targeted manner and in high yield.
- the process for the preparation of ditaurin and its salts according to the present invention is characterized in that taurine or its salts or mixtures thereof are heated to temperatures in the range from 130 to 300 ° C. in the presence of a reaction medium.
- reaction proceeds surprisingly quickly in the presence of a reaction medium and only small amounts of taurine and / or its salts remain in the mixture.
- Preferred temperatures to which heating is carried out according to the invention are those in the range from 150 to 270 ° C., in particular those in the range from 190 to 230 ° C.
- the resulting ammonia can e.g. be distilled off with water.
- ditaurinate salts are produced according to the invention, they are preferably alkali or ammonium salts, in particular sodium, ammonium or potassium salts.
- the reaction medium can be, for example, water, molten
- Act alkali hydroxides or molten other electrolytes such as sodium sulfate or mixtures thereof.
- Sodium hydroxide, potassium hydroxide, aqueous sodium hydroxide solution or aqueous potassium hydroxide solution are preferably used. If sodium or potassium hydroxide is used, a small amount of water can optionally be added to it, for example 0.1 to 10 ml of water per 100 g of solid hydroxide.
- alkali metal hydroxide must be added to the reaction mixture in solid form or as an aqueous solution, for example 0.1 to 15 moles of alkali metal hydroxide per mole of taurine used.
- taurine salts for example sodium or
- Alkaline lyes are possible, but reduce the yield, since free taurine is then present in the product.
- the process according to the invention can also be carried out only up to a partial conversion of taurine of, for example, 1 to 70%. Because the equilibrium reaction is shifted on the product side by removing the ammonia formed the conversion depends, among other things, on the ammonia content in the reaction mixture.
- the method according to the invention can be carried out at different pressures. For example, if there are no low-boiling (i.e. boiling at normal pressure below the reaction temperature) components other than the ammonia formed, you can work in an open vessel at atmospheric pressure. It is also possible, particularly in the presence of low-boiling constituents, to work in a closed vessel under the pressure which sets itself at the reaction temperature. You can also use other prints, e.g. such in
- the process according to the invention can be carried out continuously or batchwise, as can the ammonia formed which can be removed during or after the reaction.
- the time for carrying out the method according to the invention can vary, for example, in the range from 10 minutes to 24 hours.
- a mixture is generally present which contains ditaurinate, taurinate, optionally excess alkali metal hydroxide, optionally water, optionally free taurine and optionally other constituents in small amounts (e.g. below 5% by weight).
- the reaction mixture particularly if it does not contain large amounts of alkali hydroxide, can often be used as such, e.g. as an auxiliary in detergents, for detergents and as an intermediate for various secondary products.
- the reaction mixture can also be purified, e.g. neutralize or acidify, e.g. Mineral acids such as hydrochloric acid and sulfuric acid, acetic acid and
- Products are obtained that do not contain hydroxy or halogen sulfonate.
- Example 1 The procedure was as in Example 1, but an additional 114 g of solid sodium hydroxide were used. Details are shown in Table 1.
- Example 1 The procedure was as in Example 1, but 23.5% strength by weight aqueous sodium hydroxide solution was used. Details are shown in Table 1.
- Example 1 The procedure was as in Example 1, but the temperature was raised to 190.degree. Details are shown in Table 1.
- Example 6 The procedure was as in Example 1, but only 50 g of taurine and not an aqueous sodium hydroxide solution, but 16.8 g of solid sodium hydroxide and 1 ml of water were used and heated to 215 ° C. Details are shown in Table 1.
- Example 6 The procedure was as in Example 1, but only 50 g of taurine and not an aqueous sodium hydroxide solution, but 16.8 g of solid sodium hydroxide and 1 ml of water were used and heated to 215 ° C. Details are shown in Table 1. Example 6
- Example 1 The procedure was as in Example 1, but only 150 g of 35% strength by weight aqueous sodium hydroxide solution were used. Details are shown in Table 1.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2001263822A AU2001263822A1 (en) | 2000-04-10 | 2001-03-28 | Method for producing ditaurine and salts thereof |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10017313 | 2000-04-10 | ||
DE10017313.6 | 2000-04-10 | ||
DE10033580A DE10033580A1 (de) | 2000-04-10 | 2000-07-11 | Verfahren zur Herstellung von Ditaurin und seinen Salzen |
DE10033580.2 | 2000-07-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001077071A1 true WO2001077071A1 (de) | 2001-10-18 |
Family
ID=26005216
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2001/003519 WO2001077071A1 (de) | 2000-04-10 | 2001-03-28 | Verfahren zur herstellung von ditaurin und seinen salzen |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU2001263822A1 (de) |
WO (1) | WO2001077071A1 (de) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9428450B2 (en) | 2014-04-18 | 2016-08-30 | Songzhou Hu | Process for producing taurine from alkali taurinates |
US9428451B2 (en) | 2014-04-18 | 2016-08-30 | Songzhou Hu | Cyclic process for the production of taurine from alkali isethionate |
US9573890B2 (en) | 2014-04-18 | 2017-02-21 | Vitaworks Ip, Llc | Process for producing taurine |
US9593076B2 (en) | 2014-04-18 | 2017-03-14 | Vitaworks Ip, Llc | Cyclic process for producing taurine |
US9745258B1 (en) | 2016-09-16 | 2017-08-29 | Vitaworks Ip, Llc | Cyclic process for producing taurine |
US9815778B1 (en) | 2016-09-16 | 2017-11-14 | Vitaworks Ip, Llc | Cyclic process for producing taurine |
EP3279186A1 (de) | 2016-08-04 | 2018-02-07 | Vitaworks IP, LLC | Verfahren zur herstellung von taurin |
EP3284737A1 (de) | 2016-08-16 | 2018-02-21 | Vitaworks IP, LLC | Kreisprozess zur herstellung von taurin |
US10112894B2 (en) | 2016-09-16 | 2018-10-30 | Vitaworks Ip, Llc | Cyclic process for producing taurine |
US10683264B2 (en) | 2016-09-16 | 2020-06-16 | Vitaworks Ip, Llc | Process for producing taurine |
USRE48369E1 (en) | 2014-04-18 | 2020-12-29 | Vitaworks Ip, Llc | Process for producing taurine |
USRE48392E1 (en) | 2014-04-18 | 2021-01-12 | Vitaworks Ip, Llc | Cyclic process for the production of taurine from alkali isethionate |
US20230192603A1 (en) * | 2014-04-18 | 2023-06-22 | Vitaworks Ip, Llc | Process for producing alkali taurinate |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50149706A (de) * | 1974-05-21 | 1975-12-01 | ||
DD219023A3 (de) * | 1982-08-13 | 1985-02-20 | Leuna Werke Veb | Verfahren zur herstellung von natriumtaurinat |
-
2001
- 2001-03-28 WO PCT/EP2001/003519 patent/WO2001077071A1/de active Application Filing
- 2001-03-28 AU AU2001263822A patent/AU2001263822A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50149706A (de) * | 1974-05-21 | 1975-12-01 | ||
DD219023A3 (de) * | 1982-08-13 | 1985-02-20 | Leuna Werke Veb | Verfahren zur herstellung von natriumtaurinat |
Non-Patent Citations (2)
Title |
---|
CHEMICAL ABSTRACTS, vol. 84, no. 20, 17 May 1976, Columbus, Ohio, US; abstract no. 137625m, page 123; XP002174638 * |
E. SALKOWSKI: "Über die Einwirkung von Kaliumcyanat auf Sarkosin", BERICHTE DER DEUTSCHEN CHEMISCHEN GESELLSCHAFT, vol. 7, 1874, Verlag Chemie, Weinheim, DE, pages 117 - 119, XP001015722 * |
Cited By (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20230192603A1 (en) * | 2014-04-18 | 2023-06-22 | Vitaworks Ip, Llc | Process for producing alkali taurinate |
USRE48238E1 (en) | 2014-04-18 | 2020-10-06 | Vitaworks Ip, Llc | Process for producing taurine from alkali taurinates |
US9573890B2 (en) | 2014-04-18 | 2017-02-21 | Vitaworks Ip, Llc | Process for producing taurine |
US9593076B2 (en) | 2014-04-18 | 2017-03-14 | Vitaworks Ip, Llc | Cyclic process for producing taurine |
US9598360B2 (en) | 2014-04-18 | 2017-03-21 | Vitaworks Ip, Llc | Cyclic process for production of taurine from alkali vinyl sulfonate |
US11851395B2 (en) | 2014-04-18 | 2023-12-26 | Vitaworks Ip, Llc | Process for producing alkali taurinate |
US9428450B2 (en) | 2014-04-18 | 2016-08-30 | Songzhou Hu | Process for producing taurine from alkali taurinates |
USRE48354E1 (en) | 2014-04-18 | 2020-12-15 | Vitaworks Ip, Llc | Process for producing taurine from alkali taurinates |
USRE48333E1 (en) | 2014-04-18 | 2020-12-01 | Vitaworks Ip, Llc | Process for producing taurine from alkali taurinates |
US9428451B2 (en) | 2014-04-18 | 2016-08-30 | Songzhou Hu | Cyclic process for the production of taurine from alkali isethionate |
USRE48369E1 (en) | 2014-04-18 | 2020-12-29 | Vitaworks Ip, Llc | Process for producing taurine |
CN108314634A (zh) * | 2014-04-18 | 2018-07-24 | 维生源知识产权有限责任公司 | 由羟乙基磺酸碱金属盐和乙烯基磺酸碱金属盐循环制备牛磺酸的方法 |
CN108314633A (zh) * | 2014-04-18 | 2018-07-24 | 维生源知识产权有限责任公司 | 由羟乙基磺酸碱金属盐和乙烯基磺酸碱金属盐循环制备牛磺酸的方法 |
EP3351529A1 (de) | 2014-04-18 | 2018-07-25 | Vitaworks IP, LLC | Verfahren zur herstellung von alkalitaurinat |
US10040755B2 (en) | 2014-04-18 | 2018-08-07 | Vitaworks Ip, Llc | Process for producing alkali taurinate |
US10961183B2 (en) * | 2014-04-18 | 2021-03-30 | Vitaworks Ip, Llc | Process for producing alkali taurinate |
USRE48392E1 (en) | 2014-04-18 | 2021-01-12 | Vitaworks Ip, Llc | Cyclic process for the production of taurine from alkali isethionate |
US11845714B2 (en) | 2014-04-18 | 2023-12-19 | Vitaworks Ip, Llc | Process for producing taurine |
EP3279186A1 (de) | 2016-08-04 | 2018-02-07 | Vitaworks IP, LLC | Verfahren zur herstellung von taurin |
EP3284737A1 (de) | 2016-08-16 | 2018-02-21 | Vitaworks IP, LLC | Kreisprozess zur herstellung von taurin |
US9815778B1 (en) | 2016-09-16 | 2017-11-14 | Vitaworks Ip, Llc | Cyclic process for producing taurine |
US10793517B2 (en) | 2016-09-16 | 2020-10-06 | Vitaworks Ip, Llc | Process for producing taurine |
US10683264B2 (en) | 2016-09-16 | 2020-06-16 | Vitaworks Ip, Llc | Process for producing taurine |
US10112894B2 (en) | 2016-09-16 | 2018-10-30 | Vitaworks Ip, Llc | Cyclic process for producing taurine |
US9926265B1 (en) | 2016-09-16 | 2018-03-27 | Vitaworks Ip, Llc | Cyclic process for producing taurine |
EP3296290A1 (de) | 2016-09-16 | 2018-03-21 | Vitaworks IP, LLC | Kreisprozess zur herstellung von taurin |
US9745258B1 (en) | 2016-09-16 | 2017-08-29 | Vitaworks Ip, Llc | Cyclic process for producing taurine |
Also Published As
Publication number | Publication date |
---|---|
AU2001263822A1 (en) | 2001-10-23 |
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