发明名称 |
Method for obtaining 2-hydroxy-4-methylthiobutyric acid (MHA) which is stable in storage |
摘要 |
A method for obtaining 2-hydroxy-4-methylthiobutyric acid (methionine-hydroxy analog, MHA) in primarily free form which is stable in storage by distilling a product solution containing MHA and by producing MHA product mixtures with improved storage stability from such a distillate. The distillate can be produced directly starting from MHA raw products from any MHA production process, which can optionally also contain solvent or water. The starting material may also be a commercial MHA product.
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申请公布号 |
US6008409(A) |
申请公布日期 |
1999.12.28 |
申请号 |
US19970999000 |
申请日期 |
1997.12.29 |
申请人 |
DEGUSSA AKTIENGESELLSCHAFT |
发明人 |
HASSEBERG, HANS-ALBRECHL;HASSELBACH, HANS-JOACHIM;HUTHMACHER, KLAUS;HAEFNER, VOLKER;HEINZEL, HARALD;RONNEBURG, AXEL |
分类号 |
C07C319/20;A23K1/16;C07C319/26;C07C319/28;C07C323/52;(IPC1-7):C07C315/00 |
主分类号 |
C07C319/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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