General Electric Company

Gregory Kaplan

Ping Lue

Methods of reacting tannin/triazine and acid in a liquid medium and reaction products prepared by these methods. The reaction products may be used in a variety of water clarification applications and may also be utilized to inhibit coal auto oxidation and dust dissemination from coal mining, coal storage and coal transport applications.

Use of triazines for selective modification of natural polymers

Methods for making sulfide scavenging compositions are provided. The method comprises reacting at least one secondary amine with at least one aldehyde and solvent in the presence of a catalyst to form a reaction composition, wherein a reaction temperature is less than or equal to 90&#xb0; C. Sulfide scavengers using the above method are also disclosed. Methods for removing sulfides from fluid streams are also provided. The methods include adding the above sulfide scavengers to fluid streams.

Sulfide scavengers, methods for making and methods for using

Methods for reducing sulfides from fluid streams are provided. The methods comprise adding secondary amine-formaldehyde adduct (SAFA) scavengers to fluid streams. The SAFA scavengers added comprise less than about 40 wt % N-methyl secondary amines of the total weight of SAFA scavengers. Methods for distilling N-methyl secondary amines from secondary amine-formaldehyde adduct (SAFA) scavengers are also provided. Purified SAFA scavengers are also disclosed.

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Richboro, PA, United States of America

Gregory Kaplan