Phenol: insulation materials are mainly phenolic resin foam, phenolic foam products is characterized by thermal insulation, fire, light, as insulation, energy-saving, fire new material can be widely used in central air conditioning systems, lightweight insulation color steel, housing insulation can drop insulation, pipe insulation in the field of chemical insulation materials (especially cryogenic insulation), travel and other places. Phenolic foam because of its low thermal conductivity, good insulation properties, known as the king of the insulation. Phenolic foam is not only low thermal conductivity, good insulation properties, also has flame retardant, thermal stability, high light, low smoke, low toxicity, thermal, mechanical strength, noise, and strong resistance to chemical corrosion, weather and many other type of good term advantage, phenolic foam rich source of raw materials, cheap disinfectant phenol, and the production process is simple, extensive product applications. Phenol: sodium phenol with acetic anhydride reaction. Phenol was added 15% sodium hydroxide solution of phenol printing ink, and stirred to dissolve formulated as sodium phenate solution was added acetic anhydride at 30-40 ℃ reaction. The resulting reaction product was washed with water, 5% sodium hydroxide solution, washed with water, dried over calcium chloride after phenol distillation derived products. Reaction time required for this method is very short, the yield of about 77%. Another method of operation is to phenol and acetic anhydride are heated together to boiling phenol price, refluxed for 3h, successively washed with water, caustic, washed with water after cooling, dried over anhydrous sodium sulfate, and distilled to collect 190-195 ℃ fraction, preferably phenylacetate. The yield of about 83%. Phenol rubber, Wei Connaught Chemical (certified), phenol provided by Qingdao Wei Connaught Chemical Co. Qingdao Wei Connaught Chemical Co. (www.qdweinuo.com) is Qingdao, chemical products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Wei Connaught Chemical leadership with the staff warmly welcome all inquiries negotiations to create great promise a better future for the chemical.