187 results about "Phosphoric chloride" patented technology

A non-aqueous electrolyte battery using an oxyhalide as an anodic action material, which can improve pulse discharge characteristics and provide a sufficient operating voltage. A non-aqueous electrolyte battery using an oxyhalide such as thionyl chloride, sulfuric chloride and phosphoryl chloride that are liquid at room temperature as an anodic action material, wherein, in place of a conventionally used metal lithium, a lithium alloy containing at least one kind of element selected from a group consisting of Zn, Ga, Cd, In, Sn, Sb and Bi is used as a cathode to thereby reduce the impedance of a battery and prevent a reduction in operating voltage at pulse discharging, Especially, a battery is obtained that gives a significant improvement effect at high temperature and is excellent in pulse discharge characteristics having long discharge duration days.

This invention discloses a phosphocreatine disodium salt six-hydrate and its preparation method. The compound is phosphocreatine disodium salt with high purity and six-crystal water, and the preparation method includes the following steps: (1) Kondens of creatinine and phosphorus oxychloride prepares creatinine phosphorus oxychloride, (2) creatinine phosphorus oxychloride is taken the ring opening reaction to get crude phosphorus disodium, (3) purification and crystallization gets the target product. This invention has the advantages of high purity suitable for the manufacture of injection powder, and it avoids the large use of solvents with high yield of products. The excessive phosphorus oxychloride is reused with distillation, and the product has high purity through intermediate and resin purification. It has no potential safety problem about heavy metal residues, and can effectively improve the clarification to reach the intravenous requirement.

The invention relates to a phosphorus-nitrogen intumescent flame retardant and a preparation method thereof. The preparation method comprises the steps: mixing neopentyl glycol and a solvent, adding a catalyst, dissolving the catalyst, then, adding phosphorus oxychloride into a reaction solution under the condition of stirring at the temperature of 0-10 DEG C, reacting for 4-8 hours at the temperature of 20-50 DEG C after phosphorus oxychloride is added completely, removing the solvent through distilling after reacting ends, and washing and drying residues, so as to obtain cyclic phosphoryl chloride; adding the obtained cyclic phosphoryl chloride and an acid binding agent into a solvent, stirring to dissolve, adding diamine into a reaction solution under the condition of stirring at the temperature of 15-30 DEG C, then, reacting for 8-12 hours at the temperature of 50-110 DEG C, removing the solvent through distilling after reacting ends, and washing and drying residues, thereby obtaining the phosphorus-nitrogen intumescent flame retardant. The phosphorus-nitrogen intumescent flame retardant and the preparation method thereof have the advantages that the synthesis process is simple, the reaction time is short, the product has a melting point, the transparency is good when the flame retardant is added into materials, the flame-retardant effect is good, the influence on mechanical properties is low, and the like; and meanwhile, the disadvantage that intumescent flame retardants cannot be applied to the flame retardance of engineering plastics due to poor thermal stability is overcome.