Chelated surfacant

A surfactant and chelating technology, applied in the field of surfactants, can solve the problems of EDTA degradability and complicated production process, and achieve the effect of strong surface activity and chelating ability, short process flow and broad application prospects
CN1698942AInactive Publication Date: 2005-11-23长春师范学院 +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
长春师范学院
Publication Date
2005-11-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

This invention relates to a chelating surface activator, which belongs to fine chemistry technology field. The chemical constitutional formula is the right one, wherein X2=O,R2=H,X1=O or N,R1=aliphatic hydrocarbon radical; or X1=O, R1=H,X2=O or N,R2aliphatic hydrocarbon radical. The surface activator has good surface activity and chelating ability at the same time; it can improve the salt endurance and hard water resistance greatly when companied with other surface activity.
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Description

Technical field:

[0001] The invention belongs to the technical field of fine chemicals and relates to a surfactant. Background technique:

[0002] Among the chelating surfactants, EDTA derivative surfactants are more researched, but their production process is relatively complicated, and highly toxic cyanide is used in most production processes, and the degradability of EDTA itself has been recently restricted. question. Invention content:

[0003] The technical problem to be solved by the invention is to disclose a degradable chelating surfactant.

[0004] The chelating surfactant provided by the invention is obtained by reacting iminodisuccinic acid with fatty alcohol or fatty amine in the presence of a catalyst.

[0005] The structural general formula of iminodisuccinate derivative surfactant of the present invention is:

[0006]

[0007] where X 2 =O,R 2 =H,X 1 = O or N, R 1 = aliphatic hydrocarbon group;

[0008] or where X 1 =O,R 1 =H,X 2 = O or N, R 2...

Claims

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