2 results about "Ammonium hydrogen phosphate" patented technology

The application provides a method for reviving an alcohol amine solution. The method for reviving the alcohol amine solution comprises the following steps: performing first adsorption treatment on the alcohol amine solution to be revived by using a hydrogen phosphate removing agent to obtain a first solution and an adsorption system; performing second adsorption treatment on the first solution by using a hydroxyl ion exchange resin and a methyldiethanolamine cation exchange resin in sequence to obtain a second solution; performing second mixing treatment on the adsorption system by using an ammonium sulfate solution to obtain a third solution and a removing agent to be regenerated; performing second mixing treatment on the third solution by using a hydrogen ion exchange resin to obtain a fourth solution; and performing third mixing treatment on the second solution and the fourth solution to obtain a revived alcohol amine solution. The method for reviving the alcohol amine solution can remove the heat stable salt in the alcohol amine solution to be revived, and hardly causes loss of ammonium hydrogen phosphate in the alcohol amine solution to be revived.

The application discloses a method for preparing wolf tooth rod-shaped calcium phosphate based on ion coordination regulation and directional nucleation, and the method uses calcium chloride as a calcium source, di-ammonium hydrogen phosphate as a phosphorus source, and polyethylene glycol-6000 as a morphology regulator; through a hydrothermal reaction combined with a high-temperature calcination process, wolf tooth rod-shaped calcium phosphate with high monomodal preferential orientation is prepared; EDS energy spectrum scanning proves that the product is calcium phosphate and has excellent biocompatibility, and can be widely applied to bone tissue engineering scaffolds, drug carriers, biological coatings and other fields; the process steps are simple, the reaction conditions are controllable, and the cost is low, so that the application provides a new idea for preparation of high-performance calcium phosphate materials.