Abrégé

Disclosed in the present invention is a method for separating and purifying a creatine mother liquor: by means of a liquor delivery tube, pumping a mother liquor after creatine synthesis to be separated in an electrodialyzer, wherein the mother liquor contains 0.01-5% creatine and 0.1-25% inorganic salt; the electrodialyzer is equipped with an electrodialysis membrane, the electrodialysis membrane has different permeability with respect to creatine and inorganic salt. The method for separating and purifying creatine mother liquor in the present invention is simple, economical and safe, and at the same time allows for clean production.

Classes IPC  ?

• C07C 279/14 - Dérivés de la guanidine, c.-à-d. composés contenant le groupe les atomes d'azote liés par des liaisons simples ne faisant pas partie de groupes nitro ou nitroso ayant des atomes d'azote de groupes guanidine liés à des atomes de carbone acycliques d'un squelette carboné étant substitué de plus par des groupes carboxyle
• C07C 277/08 - Préparation de la guanidine ou de ses dérivés, c.-à-d. de composés contenant le groupe les atomes d'azote liés par des liaisons simples ne faisant pas partie de groupes nitro ou nitroso de guanidines substituées

Abrégé

The present invention discloses a creatine mother liquor separation and purification processing system, wherein the system includes a mother liquor tank for containing the mother liquor following creatine synthesis, the mother liquor tank is connected with a liquid conveying tube, the liquid conveying tube is connected in series with a first liquid feed pump which pumps the mother liquor into an electrodialyzer for separation and purification, the electrodialyzer being installed with an electrodialysis membrane; and a creatine solution tank and a salt-containing solution tank are connected in series downstream of the electrodialyzer, and respectively contain a creatine solution and a salt-containing solution following processing of the mother liquor by the electrodialyzer. The present invention is capable of achieving separation and purification of creatine mother liquor in a safe, economical and environmentally friendly way.

Classes IPC  ?

• C07C 279/14 - Dérivés de la guanidine, c.-à-d. composés contenant le groupe les atomes d'azote liés par des liaisons simples ne faisant pas partie de groupes nitro ou nitroso ayant des atomes d'azote de groupes guanidine liés à des atomes de carbone acycliques d'un squelette carboné étant substitué de plus par des groupes carboxyle
• C01D 3/04 - Chlorures

Abrégé

The present invention discloses a preparation method for N-methyl sodium taurate. Dimethyl carbonate is added in a droplet manner into a compound of taurine and hydroxide. After the adding ends, temperature rises, and the temperature rises progressively as reaction time increases. After the reaction ends, N-methyl sodium taurate is obtained through concentration. By using the foregoing manner, in the preparation method for N-methyl sodium taurate provided by the present invention, there are a few the whole process steps, the reaction condition has low requirements, the operation is simple, and a preparation cycle is short; therefore, a production cost is effectively reduced, the obtained N-methyl sodium taurate has a high yield and good quality. The preparation process enables a clean production, and pollution to the operation environment is reduced. No pressure synthesis is needed, and security of production process is maintained.

Classes IPC  ?

• C07C 303/32 - Préparation d'esters ou d'amides d'acides sulfuriquesPréparation d'acides sulfoniques ou de leurs esters, halogénures, anhydrides ou amides de sels d'acides sulfoniques
• C07C 309/14 - Acides sulfoniques ayant des groupes sulfo liés à des atomes de carbone acycliques d'un squelette carboné acyclique saturé contenant des atomes d'azote, ne faisant pas partie de groupes nitro ou nitroso, liés au squelette carboné contenant des groupes amino liés au squelette carboné

Abrégé

The present invention discloses a synthesis method for creatine. In a case of vacuum, carbamide and aqueous solution of sodium sarcosinate are mixed and heated. After drying, acid is added to adjust a pH value, and thermal reaction is performed to obtain solution of creatine. The solution of creatine is cooled, filtered, and dried to obtain creatine. By using the foregoing manner, in the synthesis method for creatine provided by the present invention, used raw materials are cheap and easy to be obtained, a reaction process has a simple operation, and the synthesis route is short; therefore, costs of the whole production process is greatly reduced, the obtained creatine has a high yield and good purity. The entire reaction process generates no poison and is pollution-free, thereby reducing pollution to the environment, and implementing environmental production.

Classes IPC  ?

• C07C 277/00 - Préparation de la guanidine ou de ses dérivés, c.-à-d. de composés contenant le groupe les atomes d'azote liés par des liaisons simples ne faisant pas partie de groupes nitro ou nitroso
• C07C 279/14 - Dérivés de la guanidine, c.-à-d. composés contenant le groupe les atomes d'azote liés par des liaisons simples ne faisant pas partie de groupes nitro ou nitroso ayant des atomes d'azote de groupes guanidine liés à des atomes de carbone acycliques d'un squelette carboné étant substitué de plus par des groupes carboxyle