Title:
A manufacturing method of solution of salt
Document Type and Number:
Japanese Patent JP6084217
Kind Code:
B2
Abstract:
Continuously producing aqueous solution of salts by reacting 6-12C-alkane and 6-12C-alkanediamine comprises: adding the alkane as a solid, a stoichiometric amount of the raw alkanediamine and water into a first reactor (1) via first (4), second (5) and third feed points (6), respectively to produce an aqueous salt solution in the reactor; transferring the salt solution into a second reactor (2); and performing post addition of alkanediamine in the second reactor, where the stoichiometric ratios in the first and second reactors are adjusted by a pH measurement at constant temperature. An independent claim is included for performing the process comprising the first reactor for reacting the alkane dicarboxylic acid with the alkane diamine, a second reactor, which is connected with the first reactor and comprises an additional feed point for alkane diamine, a measuring device for measuring the pH value of the aqueous salt solution in the first and/or second reactors and a control unit, which controls the amount of alkane diamine in the second reactor based on the measured pH value, where the first reactor comprises a first feed point for adding the alkane dicarboxylic acids, a second feed point for adding alkane diamine and a third feed point for adding water.
Inventors:
Ziebeck, Eckhard
Veil, mirco
Laoe, Eberhard
Veil, mirco
Laoe, Eberhard
Application Number:
JP2014519469A
Publication Date:
February 22, 2017
Filing Date:
June 05, 2012
Export Citation:
Assignee:
Ude Inventa-Fisher Gamebecher
International Classes:
C07C51/41; C07C55/14; C07C209/68; C07C211/12
Domestic Patent References:
| JP2010529066A |
Attorney, Agent or Firm:
Patent Business Corporation Minori Patent Office