WO2022185018A1 - Procédé de préparation du 2-hydroxy-4-méthylthiobutyronitrile ou de son équivalent sélénié et applications - Google Patents
Procédé de préparation du 2-hydroxy-4-méthylthiobutyronitrile ou de son équivalent sélénié et applications Download PDFInfo
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- WO2022185018A1 WO2022185018A1 PCT/FR2022/050388 FR2022050388W WO2022185018A1 WO 2022185018 A1 WO2022185018 A1 WO 2022185018A1 FR 2022050388 W FR2022050388 W FR 2022050388W WO 2022185018 A1 WO2022185018 A1 WO 2022185018A1
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- Prior art keywords
- hmsebn
- iήmtbn
- hcn
- methionine
- hydroxy
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 51
- VWWOJJANXYSACS-UHFFFAOYSA-N 2-hydroxy-4-methylsulfanylbutanenitrile Chemical compound CSCCC(O)C#N VWWOJJANXYSACS-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 229910052711 selenium Inorganic materials 0.000 title abstract description 5
- 239000011669 selenium Substances 0.000 title abstract description 5
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 title abstract description 4
- 239000012429 reaction media Substances 0.000 claims abstract description 32
- CLUWOWRTHNNBBU-UHFFFAOYSA-N 3-methylthiopropanal Chemical compound CSCCC=O CLUWOWRTHNNBBU-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000002253 acid Substances 0.000 claims abstract description 9
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 claims description 140
- 230000008569 process Effects 0.000 claims description 33
- 229930182817 methionine Natural products 0.000 claims description 25
- FFEARJCKVFRZRR-BYPYZUCNSA-N L-methionine Chemical compound CSCC[C@H](N)C(O)=O FFEARJCKVFRZRR-BYPYZUCNSA-N 0.000 claims description 24
- PICCHNWCTUUCAQ-UHFFFAOYSA-N 2-hydroxypentanethioic s-acid Chemical compound CCCC(O)C(O)=S PICCHNWCTUUCAQ-UHFFFAOYSA-N 0.000 claims description 20
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- RJFAYQIBOAGBLC-BYPYZUCNSA-N Selenium-L-methionine Chemical compound C[Se]CC[C@H](N)C(O)=O RJFAYQIBOAGBLC-BYPYZUCNSA-N 0.000 claims description 15
- RJFAYQIBOAGBLC-UHFFFAOYSA-N Selenomethionine Natural products C[Se]CCC(N)C(O)=O RJFAYQIBOAGBLC-UHFFFAOYSA-N 0.000 claims description 15
- 229960002718 selenomethionine Drugs 0.000 claims description 15
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 14
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 14
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 12
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 12
- 239000003054 catalyst Substances 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- MWLKEJXYXYRWIH-UHFFFAOYSA-N 2-amino-4-methylsulfanylbutanenitrile Chemical compound CSCCC(N)C#N MWLKEJXYXYRWIH-UHFFFAOYSA-N 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 10
- ADHNRHXQGKLXBY-UHFFFAOYSA-N 2-hydroxy-4-methylselanylbutanenitrile Chemical compound C[Se]CCC(O)C#N ADHNRHXQGKLXBY-UHFFFAOYSA-N 0.000 claims description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 6
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 6
- 239000004408 titanium dioxide Substances 0.000 claims description 6
- 229910021529 ammonia Inorganic materials 0.000 claims description 5
- 238000001704 evaporation Methods 0.000 claims description 5
- 230000008020 evaporation Effects 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- LXORJTRSUJRMKX-UHFFFAOYSA-N C[Se]CCC(C#N)N Chemical compound C[Se]CCC(C#N)N LXORJTRSUJRMKX-UHFFFAOYSA-N 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- 229940069078 citric acid / sodium citrate Drugs 0.000 claims description 4
- MQWOPLFUKJAPLE-UHFFFAOYSA-N 2-aminopentanethioamide Chemical compound CCCC(N)C(N)=S MQWOPLFUKJAPLE-UHFFFAOYSA-N 0.000 claims description 3
- XVQREFPMZFWTJZ-UHFFFAOYSA-N 3-methylselanylpropanal Chemical compound C[Se]CCC=O XVQREFPMZFWTJZ-UHFFFAOYSA-N 0.000 claims description 3
- HYAVVFBCHISBDZ-UHFFFAOYSA-N CCCC(O)C(O)=[Se] Chemical compound CCCC(O)C(O)=[Se] HYAVVFBCHISBDZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000004821 distillation Methods 0.000 claims description 3
- SBKRXUMXMKBCLD-SCSAIBSYSA-N (R)-5-[2-(methylthio)ethyl]hydantoin Chemical compound CSCC[C@H]1NC(=O)NC1=O SBKRXUMXMKBCLD-SCSAIBSYSA-N 0.000 claims description 2
- YSWXTIHGNYOMMS-UHFFFAOYSA-N CCCC(C(N)=[Se])N Chemical compound CCCC(C(N)=[Se])N YSWXTIHGNYOMMS-UHFFFAOYSA-N 0.000 claims description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 2
- 239000007853 buffer solution Substances 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims description 2
- FFEARJCKVFRZRR-UHFFFAOYSA-M methioninate Chemical class CSCCC(N)C([O-])=O FFEARJCKVFRZRR-UHFFFAOYSA-M 0.000 claims description 2
- 229910017604 nitric acid Inorganic materials 0.000 claims description 2
- 229910000069 nitrogen hydride Inorganic materials 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 239000001509 sodium citrate Substances 0.000 claims description 2
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims 2
- 235000015320 potassium carbonate Nutrition 0.000 claims 1
- 229910000027 potassium carbonate Inorganic materials 0.000 claims 1
- -1 selenium aldehyde Chemical class 0.000 abstract description 2
- DNOUKPGPAUUCPC-UHFFFAOYSA-N 2-methylsulfanylpropanal Chemical compound CSC(C)C=O DNOUKPGPAUUCPC-UHFFFAOYSA-N 0.000 description 44
- 230000015572 biosynthetic process Effects 0.000 description 22
- 238000003786 synthesis reaction Methods 0.000 description 17
- 150000001299 aldehydes Chemical class 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- 235000019728 animal nutrition Nutrition 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000012467 final product Substances 0.000 description 3
- 235000019253 formic acid Nutrition 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- HSJKGGMUJITCBW-UHFFFAOYSA-N 3-hydroxybutanal Chemical compound CC(O)CC=O HSJKGGMUJITCBW-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 239000007857 degradation product Substances 0.000 description 2
- 230000001627 detrimental effect Effects 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 150000003342 selenium Chemical class 0.000 description 2
- DOLNLDKZJKDWLS-UHFFFAOYSA-N 2-hydroxypentanethioamide Chemical compound CCCC(O)C(N)=S DOLNLDKZJKDWLS-UHFFFAOYSA-N 0.000 description 1
- 238000001069 Raman spectroscopy Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 235000011054 acetic acid Nutrition 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- GKBFFPJHOLVCHW-WCCKRBBISA-N azanium;(2s)-2-amino-4-methylsulfanylbutanoate Chemical compound [NH4+].CSCC[C@H](N)C([O-])=O GKBFFPJHOLVCHW-WCCKRBBISA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000006384 oligomerization reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C391/00—Compounds containing selenium
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C319/00—Preparation of thiols, sulfides, hydropolysulfides or polysulfides
- C07C319/14—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of sulfides
- C07C319/20—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of sulfides by reactions not involving the formation of sulfide groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C319/00—Preparation of thiols, sulfides, hydropolysulfides or polysulfides
- C07C319/26—Separation; Purification; Stabilisation; Use of additives
- C07C319/28—Separation; Purification
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C323/00—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups
- C07C323/50—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton
- C07C323/51—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton having the sulfur atoms of the thio groups bound to acyclic carbon atoms of the carbon skeleton
- C07C323/57—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton having the sulfur atoms of the thio groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being further substituted by nitrogen atoms, not being part of nitro or nitroso groups
- C07C323/58—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton having the sulfur atoms of the thio groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being further substituted by nitrogen atoms, not being part of nitro or nitroso groups with amino groups bound to the carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C323/00—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups
- C07C323/50—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton
- C07C323/51—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton having the sulfur atoms of the thio groups bound to acyclic carbon atoms of the carbon skeleton
- C07C323/60—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton having the sulfur atoms of the thio groups bound to acyclic carbon atoms of the carbon skeleton with the carbon atom of at least one of the carboxyl groups bound to nitrogen atoms
Definitions
- TITLE Process for the preparation of 2-hydroxy-4-methylthiobutyronitrile or its selenium equivalent and applications
- the invention relates to an improvement in a process for the manufacture of 2-hydroxy-4-methylthiobutyronitrile (HMTBN) or 2-hydroxy-4-methylselenobutyronitrile (HMSeBN), from 3-methylthiopropanal (MTP) or 3- methylselenopropanal (MSeP), respectively, and hydrocyanic acid (HCN).
- HMTBN 2-hydroxy-4-methylthiobutyronitrile
- MSeBN 2-hydroxy-4-methylselenobutyronitrile
- MTP 3-methylthiopropanal
- MSeP 3- methylselenopropanal
- HN hydrocyanic acid
- HMTBN and HMSeBN are precursors for the synthesis of methionine and its selenium equivalent, selenomethionine.
- a synthesis of methionine from I ⁇ MTBN is described in document W001/60790A1.
- I ⁇ MTBN is transformed into 2-amino-4-methylthiobutyronitrile (AMTBN) which is in turn reacted with acetone in a basic medium to form 2-amino-4-methylthiobutyramide (AMTBM).
- AMTBM 2-amino-4-methylthiobutyramide
- Catalytic hydrolysis of AMTBM leads to ammonium methionine from which methionine is recovered.
- HMTBN is also an intermediate in the manufacture of the hydroxy analogue of methionine, 2-hydroxy-4-methylthiobutyric acid (HMTBA).
- HMTBA 2-hydroxy-4-methylthiobutyric acid
- HMTBM 2-hydroxy-4-methylthiobutyramide
- Comparable syntheses can be carried out in the selenium series to lead to 2-hydroxy-4-methylselenobutyric acid (HMSeBA).
- HMTBA 2-Hydroxy-4-methylthiobutyric acid
- the liquid equivalent of methionine, its salts, its chelates, including metal chelates (of Ca, Zn, Co, Mn, Cu, Fe, Mg... ) and its esters, such as the isopropyl and tert-butyl esters of I ⁇ MTBA, are also widely used in animal nutrition.
- metal chelates of Ca, Zn, Co, Mn, Cu, Fe, Mg...
- esters such as the isopropyl and tert-butyl esters of I ⁇ MTBA
- selenium derivatives of this acid, of these salts, of these chelates and of these esters are of major interest in animal nutrition.
- the preparation of I ⁇ MTBN from hydrocyanic acid (HCN) and 3-methylthiopropanal (MTP) is well known and widely used on an industrial scale, for example the process disclosed in document US2012/215022A1.
- This process comprises the following steps: the MTP is reacted with the HCN in the presence of a catalyst chosen from amines, in a multizone reactor, to lead to a reaction mixture containing the I ⁇ MTBN formed as well as the reagents, MTP and HCN and the catalyst, and the Unreacted HCN from the reaction medium to an absorption zone containing MTP and catalyst, where it reacts again.
- reaction medium always contains, in addition to I ⁇ MTBN, residual HCN and MTP.
- the process according to US2012/215022A1 makes it possible to improve the profitability of the process.
- the use of an amine-type catalyst makes it possible to limit the formation of by-products from MTP compared to other basic catalysts.
- HMTBA 2-hydroxy-4-methylthiobutyric acid
- MTP 2-hydroxy-4-methylthiobutyric acid
- SUBSCRIBER UNITA1 in the context of the manufacture of 2-hydroxy-4-methylthiobutyric acid (HMTBA) from HMTBN, a step for the preparation of HMTBN from MTP and HCN is illustrated.
- the reaction is carried out in an HCN: MTP molar ratio of 1.1, in the presence of NaOH, then sulfuric acid is added to lower the pH to 3.
- the unreacted HCN is extracted by distillation under pressure , making it possible to limit the formation of the aforementioned formic acid.
- the MTP content remains high and affects the purity of the products formed downstream and in particular I ⁇ MTB.
- the presence of MTP in the reaction medium is indeed just as detrimental because this aldehyde leads to the formation of degradation products of the aldol type, crotomers and derivatives, resulting from reactions of oligomerization of MTP, which contribute just as much as HCN to the decrease in methionine or HMTBA yields and possibly a lower quality of the final product if these products are not extracted.
- the present invention provides a solution making it possible to lower the contents of MTP and HCN in the reaction medium and therefore to reduce the disadvantages associated with their presence, having the consequence of increasing the synthesis yields, avoiding costly treatments of the process effluents and improve the quality of the final product.
- the invention provides a process for the preparation of 2-hydroxy-4-methylthiobutyronitrile (HMTBN) or 2-hydroxy-4-methylselenobutyronitrile (HMSeBN) from 3- methylthiopropanal (MTP) or 3-methylselenopropanal (MSeP), respectively, and hydrocyanic acid (HCN), which comprises at least the following steps: the molar ratio of HCN to MTP or to MSeP is adjusted to a higher value or equal to 1 and the pH is adjusted and maintained at a value greater than or equal to 3.5, to obtain a reaction medium in which I ⁇ MTBN or HMSeBN is formed, then the pH of the reaction medium is lowered to a value lower than or equal to 1. equal to 2.5 and the HCN is extracted from the reaction medium, and the I ⁇ MTBN or the HMSeBN is recovered.
- HMTBN 2-hydroxy-4-methylthiobutyronitrile
- HMSeBN 2-hydroxy-4-methylselenobutyronitrile
- HMSeBN 2-
- the equilibrium of the reaction leads to a low residual concentration of MTP when it is greater than 1.
- it is determined at a value of at least 1; advantageously this value remains close to 1, it can in particular vary from 1 to 2, the value of 2 having to be considered as maximum since beyond that the excess of HCN is highly detrimental economically.
- the pH of the reaction medium is determined at a value of at least 3.5, but it is preferably at least 4 and even better still at least 5, for an optimal reaction, which is an important parameter during the implementation of this synthesis on an industrial scale.
- aldehyde in the present text, is meant either MTP (which is also equivalent to MMP for methyl mercapto propionaldehyde and to AMTP for methylthiopropionic aldehyde) and MSeP.
- the molar ratio of HCN to MTP is adjusted to a value greater than or equal to 1.02. Below, we observe that the performance of the process tends to decrease. But advantageously, this value does not exceed 1.5, the energy required to extract the HCN becoming too high compared to the expected gains.
- Another advantage of a process of the invention lies in the very wide range of temperatures in which it can be carried out.
- a preferred range is 50°C to 110°C.
- HCN is in liquid or gaseous state.
- the HCN is fed in gaseous form into the reaction medium and the temperature of said medium is maintained above 30° C., better still above 50° C., or even above 60°C.
- the pressure conditions in the reaction medium are of the order of 1 to 1.5 bara (bar absolute).
- the adjustment of the pH to a value of at least 3.5 and its maintenance at this value are generally ensured by a buffer solution.
- This can be chosen from all the suitable pairs to which those skilled in the art have recourse, such as citric acid/sodium citrate, citric acid/caustic soda, sodium citrate/phosphoric acid.
- the pH of the reaction medium is lowered to a value less than or equal to 2.2, in particular to a value less than or equal to 2, or even to a value less than or equal to 1.5.
- the pH of the reaction medium is lowered to a value less than or equal to 2.5 by an acid which the person skilled in the art is able to choose on the basis of his skills. It is chosen in particular from mineral acids such as sulfuric acid, nitric acid, hydrochloric acid and any mixture thereof.
- the HCN can be extracted from the reaction medium by any appropriate technique such as stripping (using a vector gas such as steam, nitrogen, air, CO2 and any mixture of those -ci), evaporation, distillation, membrane processes. In a preferred variant of the invention, evaporation is used.
- stripping using a vector gas such as steam, nitrogen, air, CO2 and any mixture of those -ci
- evaporation is used.
- the extraction of the HCN makes it possible to recycle it at the stage of reaction with the aldehyde. It can be recycled directly, it can also be treated by one or more operations before being reintroduced into the reaction medium.
- the method of the invention can be carried out continuously, which is moreover a preferred mode of use of this method.
- applications of a process of the invention include the manufacture of methionine, selenomethionine, 2-hydroxy-4-methylthiobutyric acid (HMTBA) and 2-hydroxy-4- methylselenobutyric (HMSeBA),
- the invention provides a process for the manufacture of methionine or selenomethionine, starting respectively from 2-hydroxy-4-methylthiobutyronitrile (HMTBN) or from 2-hydroxy-4-methylselenobutyronitrile (HMSeBN), the process comprising at least the following steps: I ⁇ MTBN or HMSeBN is prepared by a method as defined previously, generally or in any one of its variants, and I ⁇ MTBN or HMSeBN is converted into methionine or selenomethionine, respectively, by one of following routes: a) directly converting I ⁇ MTBN or HMSeBN into methionine or selenomethionine; by way of example, this conversion can be carried out in the presence of at least water and of a catalyst comprising at least one of alumina, titanium dioxide and zirconia, and optionally, even preferably in presence of ammonia, or b) GHMTBN is reacted with NH3 and CO 2 to produce methionine hy
- the conversion of GAMTBN or AMSeBN into methionine or selenomethionine, respectively, according to route d) can be carried out in the presence of at least water and a catalyst comprising at least one of alumina, titanium dioxide and zirconia, and optionally in the presence of ammonia.
- the invention also provides a process for the manufacture of 2-hydroxy-4-methylthiobutyric acid (HMTBA) or 2-hydroxy-4-methylselenobutyric acid (HMSeBA), respectively from 2-hydroxy-4-methylthiobutyronitrile (HMTBN) or 2-hydroxy-4-methylselenobutyronitrile (HMSeBN), the process comprising at least the following steps: I ⁇ MTBN or HMSeBN is prepared by a process as defined above, generally or in any of its variants , and converting I ⁇ MTBN or HMSeBN to HMTBA or to HMSeBA.
- HMTBA 2-hydroxy-4-methylthiobutyric acid
- HMSeBA 2-hydroxy-4-methylselenobutyric acid
- HMTBN 2-hydroxy-4-methylthiobutyronitrile
- HMSeBN 2-hydroxy-4-methylselenobutyronitrile
- I ⁇ MTBN or HMSeBN is converted into HMTBA or HMSeBA, in the presence of at least water, a weak acid such as acetic acid, formic acid and propionic acid, and a catalyst comprising at least one of alumina, titanium dioxide and zirconia.
- a weak acid such as acetic acid, formic acid and propionic acid
- a catalyst comprising at least one of alumina, titanium dioxide and zirconia.
- Example 1 Synthesis of HMTBN according to the invention in a molar ratio of HCN: MTP of 1.1: 1
- HMTBN synthesis is carried out by bringing a stream of gaseous HCN containing 10% HCN, 61% N2, 1% CO2, 4% CO and 24% water, expressed as mass percentages, into contact with Liquid MTP.
- the molar ratio is 1.1:1.
- the HMTBN solution obtained contains 70.5% (mass) of HMTBN, 4000 ppm of HCN, 1000 ppm of MTP and 29% (mass) of water.
- the pH of this mixture is lowered to 2 by sulfuric acid.
- the HCN is extracted from the mixture by evaporation, by heating said mixture to 65°C at 250 mbar.
- the final medium contains only 65 ppm of HCN and 1200 ppm of MTP, 72% (mass) of HMTBN and 27.9% (mass) of water.
- the vapors are partly condensed.
- the remaining gases composed of 75% (mass) HCN, 9% (mass) air and 16% (mass) water are returned with the HCN stream to the synthesis.
- Example 2 Synthesis of HMTBN according to the invention in a molar ratio of HCN: MTP of 105:1 HMTBN synthesis is carried out by bringing a stream of HCN gas containing 10% HCN, 61% N2, 1% CO2, 4% CO and 24% water, expressed as mass percentages, into contact with MTP. liquid.
- the molar ratio is 1.05:1.
- the HMTBN solution obtained contains 70.5% (mass) of HMTBN, 2000 ppm of HCN,
- the pH of this mixture is lowered to 2 by sulfuric acid.
- the HCN is extracted from the mixture by evaporation, by heating the mixture to 65°C at 250 mbar.
- the final medium contains only 50 ppm of HCN, 2100 ppm of MTP, 72% (mass) of HMTBN and 27.8% (mass) of water.
- the vapors are partly condensed.
- the remaining compressed gases composed of 66% HCN by weight, 18% air and 16% water are returned with the HCN stream to the synthesis.
- the liquid composed of 97% (mass) water, 0.5% (mass) MTP and 2.5% (mass) HCN is returned with the MTP in the synthesis.
- HMTBN The synthesis of HMTBN is carried out under the conditions of Example 1 above, with the difference that, once I ⁇ MTBN obtained, the pH is lowered respectively to 3.4 (for comparison), to 2.2, at 2 and at 1.5 (according to the invention).
- the pH is lowered by adding sulfuric acid.
- the content, before (A) and after removal (B) of HCN from the reaction medium, of HMTBN, HCN, MTP and HMTBM resulting from the hydration of the I ⁇ MTBN formed is measured.
- Those of I ⁇ MTBN, MTP and I ⁇ MTBM are determined by HPLC, that of HCN by Raman analysis.
- the HCN is removed by stripping with nitrogen at a flow rate of 0.5 L/min and collected in a trap containing sodium hydroxide whose HCN content corresponding substantially to the extracted HCN is also determined (C).
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Abstract
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Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18/280,388 US20240076267A1 (en) | 2021-03-04 | 2022-03-04 | Method for preparing 2-hydroxy-4-methylthiobutyronitrile or the selenium equivalent thereof, and applications |
KR1020237030084A KR20230148825A (ko) | 2021-03-04 | 2022-03-04 | 2-하이드록시-4-메틸티오부티로니트릴 또는 이의 셀레늄 등가물을 제조하는 방법 및 적용 |
JP2023553011A JP2024509428A (ja) | 2021-03-04 | 2022-03-04 | 2-ヒドロキシ-4-メチルチオブチロニトリル並びにそのセレン等価物の製造方法及び利用 |
EP22712964.0A EP4301729A1 (fr) | 2021-03-04 | 2022-03-04 | Procédé de préparation du 2-hydroxy-4-méthylthiobutyronitrile ou de son équivalent sélénié et applications |
CN202280018560.2A CN117043139A (zh) | 2021-03-04 | 2022-03-04 | 制备2-羟基-4-甲硫基丁腈或其硒等价物的方法及其应用 |
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FR2102123A FR3120367B1 (fr) | 2021-03-04 | 2021-03-04 | Procédé de préparation du 2-hydroxy-4-méthylthiobutyronitrile ou de son équivalent sélénié et applications |
FRFR2102123 | 2021-03-04 |
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PCT/FR2022/050388 WO2022185018A1 (fr) | 2021-03-04 | 2022-03-04 | Procédé de préparation du 2-hydroxy-4-méthylthiobutyronitrile ou de son équivalent sélénié et applications |
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US (1) | US20240076267A1 (fr) |
EP (1) | EP4301729A1 (fr) |
JP (1) | JP2024509428A (fr) |
KR (1) | KR20230148825A (fr) |
CN (1) | CN117043139A (fr) |
FR (1) | FR3120367B1 (fr) |
TW (1) | TW202302531A (fr) |
WO (1) | WO2022185018A1 (fr) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0601195A1 (fr) | 1992-05-21 | 1994-06-15 | Daicel Chemical Industries, Ltd. | Procede pour produire de l'acide 2-hydroxy-4-methylthiobutanoique |
US5990349A (en) | 1995-12-18 | 1999-11-23 | Degussa Aktiengesellschaft | Process for the preparation of D,L-methionine or the salt thereof |
US20010001105A1 (en) | 1995-06-07 | 2001-05-10 | Hsu Yung C. | Continuous hydrolysis process for preparing 2- hydroxy-4- methylthiobutanoic acid or salts thereof |
WO2001060790A1 (fr) | 2000-02-15 | 2001-08-23 | Aventis Animal Nutrition S.A. | Procede de production de methionine |
JP2002105048A (ja) * | 2000-09-25 | 2002-04-10 | Sumitomo Chem Co Ltd | 2−ヒドロキシ−4−メチルチオブタンニトリルの製造方法 |
US20120215022A1 (en) | 2011-02-23 | 2012-08-23 | Evonik Degussa Gmbh | Method for the production of 2-hydroxy-4-(methylthio)butyronitrile from 3-(methylthio)propanal and hydrogen cyanide |
CN109160894A (zh) * | 2018-10-15 | 2019-01-08 | 禄丰天宝磷化工有限公司 | 一种环保清洁的dl-2-氨基-4-甲硒基丁酸生产工艺 |
-
2021
- 2021-03-04 FR FR2102123A patent/FR3120367B1/fr active Active
-
2022
- 2022-03-04 CN CN202280018560.2A patent/CN117043139A/zh active Pending
- 2022-03-04 US US18/280,388 patent/US20240076267A1/en active Pending
- 2022-03-04 KR KR1020237030084A patent/KR20230148825A/ko unknown
- 2022-03-04 TW TW111108007A patent/TW202302531A/zh unknown
- 2022-03-04 WO PCT/FR2022/050388 patent/WO2022185018A1/fr active Application Filing
- 2022-03-04 EP EP22712964.0A patent/EP4301729A1/fr active Pending
- 2022-03-04 JP JP2023553011A patent/JP2024509428A/ja active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0601195A1 (fr) | 1992-05-21 | 1994-06-15 | Daicel Chemical Industries, Ltd. | Procede pour produire de l'acide 2-hydroxy-4-methylthiobutanoique |
US20010001105A1 (en) | 1995-06-07 | 2001-05-10 | Hsu Yung C. | Continuous hydrolysis process for preparing 2- hydroxy-4- methylthiobutanoic acid or salts thereof |
US5990349A (en) | 1995-12-18 | 1999-11-23 | Degussa Aktiengesellschaft | Process for the preparation of D,L-methionine or the salt thereof |
WO2001060790A1 (fr) | 2000-02-15 | 2001-08-23 | Aventis Animal Nutrition S.A. | Procede de production de methionine |
JP2002105048A (ja) * | 2000-09-25 | 2002-04-10 | Sumitomo Chem Co Ltd | 2−ヒドロキシ−4−メチルチオブタンニトリルの製造方法 |
US20120215022A1 (en) | 2011-02-23 | 2012-08-23 | Evonik Degussa Gmbh | Method for the production of 2-hydroxy-4-(methylthio)butyronitrile from 3-(methylthio)propanal and hydrogen cyanide |
CN109160894A (zh) * | 2018-10-15 | 2019-01-08 | 禄丰天宝磷化工有限公司 | 一种环保清洁的dl-2-氨基-4-甲硒基丁酸生产工艺 |
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FR3120367B1 (fr) | 2024-02-16 |
JP2024509428A (ja) | 2024-03-01 |
TW202302531A (zh) | 2023-01-16 |
US20240076267A1 (en) | 2024-03-07 |
FR3120367A1 (fr) | 2022-09-09 |
CN117043139A (zh) | 2023-11-10 |
KR20230148825A (ko) | 2023-10-25 |
EP4301729A1 (fr) | 2024-01-10 |
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