30 results about "Sodium complex" patented technology

The invention relates to a synthesis method of hydroquinone. The method is characterized by comprising the following steps: carrying out catalytic oxidation on phenol and oxygen to generate a mixture of p-benzoquinone and o-benzoquinone, wherein a catalyst is copper and sodium complex salt; distilling to remove solvent, adding water in residual materials, and separating p-benzoquinone and o-benzoquinone by distillation; reducing separated p-benzoquinone with a reducing agent to obtain hydroquinone, filtering out hydroquinone crude product and recrystallizing so as to obtain hydroquinone crystal; and concentrating a mother liquid obtained by filtering out hydroquinone or catechol crude product to obtain an ammonium sulfate fertilizer. The synthesis method has simple process, mild reaction conditions and short reaction period, and the yield of hydroquinone in the product is larger than that of catechol.

The invention discloses a preparation method of a polyamide reverse osmosis membrane containing an amphoteric carboxymethylcellulose sodium complex. The preparation method comprises the steps: firstly, preparing an amphoteric cationic polymer by a free radical polymerization method, then preparing an amphoteric carboxymethylcellulose sodium complex by an ionic crosslinking method, adding the amphoteric carboxymethylcellulose sodium complex into an aqueous phase monomer solution for preparing a polyamide membrane, and thus obtaining the polyamide reverse osmosis membrane containing the amphoteric carboxymethylcellulose sodium complex through an interfacial polymerization method. With utilization of good hydrophilicity, contamination resistance and a unique nanoparticle structure of the amphoteric carboxymethylcellulose sodium complex, the water permeation flux and contamination resistance of the membrane are greatly improved while the high salt interception rate of the polyamide membrane on an inorganic salt is kept. Under an operating pressure of 1.5 MPa at the temperature of 25 DEG C, the interception rate of the reverse osmosis membrane on NaCl is more than 97%, and the water permeation flux is more than 30 L.m<-2>.h<-1>. Therefore, the prepared polyamide reverse osmosis membrane containing the amphoteric carboxymethylcellulose sodium complex has high salt interception rate, water permeability and contamination resistance.

The invention discloses a preparation method of an iron-tartaric acid-sodium complex. The preparation method comprises following steps: (1) water and dextrotartaric acid are added into a high-pressure reaction vessel, wherein the dextrotartaric acid concentration of the solution is more than 5 wt%; the solution is stirred, heated to 155 to 175 DEG C, and reacted for 8 to 48h at the temperature of 155 to 175 DEG C; (2) the contents of the ingredients in the high-pressure reaction vessel are determined, and the reaction is stopped when more than 30 wt% of dextrotartaric acid is converted to mesotartaric acid; (3) the ingredients in the high-pressure reaction vessel are cooled to room temperature, and then the solution is discharged; (4) a solution containing Fe3<+> is added into the solution with stirring; and (5) a solution containing Na<+> is added into the solution with stirring, the mixture is stirred until appearance is clear, color is uniform, no precipitate is generated and no stratification is causes, and then the iron-tartaric acid-sodium complex is obtained. Reaction conditions of the preparation method are mild; the preparation method is simple; consumption of raw materials is less; no pollution is caused; the preparation method is suitable for industrial production; and the stability of the iron-tartaric acid-sodium complex is much higher than that of complex prepared by existing methods.

The present invention discloses a propylene glycol anhydrous type coolant, which comprises the following raw materials by weight: 100 parts of 1,2-propylene glycol, 0.1-0.5 part of methyl benzotriazole, 0. 5-1.5 parts of polyaminoacid, 0.1-0.5 part of diethylenetriamine pentaacetic acid iron-sodium complex, 0.5-1.5 parts of sodium benzoate and 0.1-0.3 part of dimethicone. The propylene glycol anhydrous type coolant provided by the present invention has high stability, overcomes the technical defect of easy boiling of the traditional aqueous coolant, and helps the operation of engine at full load and high load.

The catechol sodium complex has both catechol with latent anticancer and antitumor capacity and low toxicity sodium ion, and their cooperation makes the complex possess excellent water solubility and liposolubility and can enter effectively the disease focus part in life system to treat cancer and tumor. The catechol sodium complex may be used alone as anticancer and antitumor medicine or as the active component of anticancer and antitumor. The preparation process is to complex inorganic salt containing metal sodium ion and catechol ligand to form the catechol sodium complex inside water phase, organic phase or mixed phase in the presence of organic amine. The preparation process has easy-to-obtain material, low cost, separated crystal product, high product purity, high yield and high stability of the product under natural state.

The present invention provides a an angiotensin receptor antagonist and creatine phosphate sodium complex and uses thereof, wherein the complex comprises an angiotensin receptor antagonist and creatine phosphate sodium, a molar ratio of the angiotensin receptor antagonist to the creatine phosphate sodium is 1:1-2, and the angiotensin receptor antagonist is selected from valsartan, losartan, irbesartan, telmisartan, eprosartan, candesartan, olmesartan, saprisartan, tasosartan, and elisartan. According to the present invention, the complex is formed by compounding the angiotensin receptor antagonist and the creatine phosphate sodium, and provides the unexpected double effect and the synergistic effect for treatment of heart failure and high blood pressure, the cocrystallization salt hydrate formed by linking the hydrogen bond has the stable characteristic, the pharmacokinetic property is significantly provided, and the positive application prospects are provided in the fields of anti-high blood pressure treatment and anti-heart failure treatment.