Provided is a method for purifying 1,5-pentanediamine comprising: providing 1,5-pentanediamine to be purified and treating the 1,5-pentanediamine to be purified by a reduction reaction to obtain purified 1,5-pentanediamine. Meanwhile, further provided is 1,5-pentanediamine prepared by the method. The purification method has a concise process and a simple operation, and is suitable for industrial production, and can significantly improve the quality of 1,5-pentanediamine.

An organic compound is disclosed comprising: a first chemical moiety with a structure of formula I

##STR00001##

and two second chemical moieties, independently from another with a structure of formula II,

##STR00002##

wherein the first chemical moiety is linked to each of the two second chemical moieties via a single bond.

An organic compound is disclosed comprising: a first chemical moiety with a structure of formula I

##STR00001##

and two second chemical moieties, independently from another with a structure of formula II,

##STR00002##

wherein the first chemical moiety is linked to each of the two second chemical moieties via a single bond.

Provided is a method for purifying 1,5-pentanediamine comprising: providing 1,5-pentanediamine to be purified and treating the 1,5-pentanediamine to be purified by a reduction reaction to obtain purified 1,5-pentanediamine. Meanwhile, further provided is 1,5-pentanediamine prepared by the method. The purification method has a concise process and a simple operation, and is suitable for industrial production, and can significantly improve the quality of 1,5-pentanediamine.

Provided is a method for purifying 1,5-pentanediamine comprising: providing 1,5-pentanediamine to be purified and treating the 1,5-pentanediamine to be purified by a reduction reaction to obtain purified 1,5-pentanediamine. Meanwhile, further provided is 1,5-pentanediamine prepared by the method. The purification method has a concise process and a simple operation, and is suitable for industrial production, and can significantly improve the quality of 1,5-pentanediamine.

The present invention relates to a process for separating at least one alkanolamine from a mixture comprising an aliphatic primary diamine and the at least one alkanolamine. The invention further relates to a process for the preparation of an aliphatic primary diamine by hydrogenating a dinitrile compound and separating at least one alkanolamine from the obtained mixture and to the aliphatic primary diamine obtainable by said processes.

The present invention relates to a process for separating at least one alkanolamine from a mixture comprising an aliphatic primary diamine and the at least one alkanolamine. The invention further relates to a process for the preparation of an aliphatic primary diamine by hydrogenating a dinitrile compound and separating at least one alkanolamine from the obtained mixture and to the aliphatic primary diamine obtainable by said processes.

Provided is a method for purifying 1,5-pentanediamine comprising: providing 1,5-pentanediamine to be purified and treating the 1,5-pentanediamine to be purified by a reduction reaction to obtain purified 1,5-pentanediamine. Meanwhile, further provided is 1,5-pentanediamine prepared by the method. The purification method has a concise process and a simple operation, and is suitable for industrial production, and can significantly improve the quality of 1,5-pentanediamine.

Provided is a method for purifying 1,5-pentanediamine comprising: providing 1,5-pentanediamine to be purified and treating the 1,5-pentanediamine to be purified by a reduction reaction to obtain purified 1,5-pentanediamine. Meanwhile, further provided is 1,5-pentanediamine prepared by the method. The purification method has a concise process and a simple operation, and is suitable for industrial production, and can significantly improve the quality of 1,5-pentanediamine.

Provided is a method for purifying 1,5-pentanediamine comprising: providing 1,5-pentanediamine to be purified and treating the 1,5-pentanediamine to be purified by a reduction reaction to obtain purified 1,5-pentanediamine. Meanwhile, further provided is 1,5-pentanediamine prepared by the method. The purification method has a concise process and a simple operation, and is suitable for industrial production, and can significantly improve the quality of 1,5-pentanediamine.