How to deal with waste hydrochloric acid iron and steel industry, fabricated metal products in the production process need to remove the steel surface oxide skin using hydrochloric acid pickling process will produce a lot of waste acid, hydrochloric acid pickle liquor main constituents: free acid, ferrous chloride and water. Its content with the pickling process, operating temperature, steel materials, specifications vary, generally Ferrous Chloride: 20-26%, free acid: 5-8%, the rest is water. What is amazing waste of emissions such as hydrochloric acid, generally produce a tonne of steel pickling liquid waste produces about 55-72kg. Currently the steel industry has become a major water users, but also generate large waste. According to statistics of hydrochloric acid, only the key steel enterprises have an annual volume of wastewater discharged more than 30 billion cubic meters. For this type of waste treatment, mainly in two ways: First, the acid-base neutralization method, the second is hydrochloric acid regeneration. Hydrochloric acid regeneration are used heating evaporation, spray combustion mode, the current domestic hydrochloric acid regeneration system is introduced, the process is a waste heat recovery hydrochloric acid directly hydrochloric acid and iron main purpose, few large-scale iron and steel enterprises to adopt Lu Odd law and Lu Tena law. The treatment process time investment, operation and maintenance costs high, serious damage to the equipment, SMEs generally unbearable. Thus the supply of hydrochloric acid, mostly domestic SMEs using lime neutralization, the spent acid during and after discharge. However, this method consumes a large amount of lime, and produce large amounts of moisture content of 99% of the sludge drying process required. The approach to infrastructure investment and handling costs are also high, and the waste acid in a useful resource for failure to recycling. To this end, we have gone through years of experiments, research, the vacuum evaporation process dilute hydrochloric acid and hydrochloric acid waste recycling process for ferrous chloride crystals. Our responsibility to our customers believe that customers' success is our success! We are the best customers trusted partner physicochemical properties hexanoyl chloride material: GB ID number 81115CAS 142-61-0 Formula C6H11ClO; CH3 (CH2) 4CClO Appearance colorless liquid Molecular Weight 134.61 Flash point 50 ℃ Boiling Point: 151 ~ 153 ℃ Solubility insoluble in ether, chloroform and most [2] The organic solvents density relative density (water = 1) 0.97 Stability stable risk Marker 20 (corrosive acid) main purpose for Organic Synthesis method consists of ethanol and n-chlorine of sulfoxide derived reaction. The thionyl chloride was mixed with n-hexyl acid at 50-70 ℃, reaction at 70-90 ℃ 4h. Distillation, collecting 147-160 ℃ distillate, hexanoyl chloride. Use 1 for organic synthesis intermediates. For the preparation of anti-fungal drugs have acid tribromobenzene ester, also as a liquid crystal intermediates. 2. for organic synthesis. 3. acylating agent used for organic synthesis Business inner hydrochloric acid HCl supply _ _ Zhengzhou Longda Chemical (Views) provided by the Zhengzhou Longda Chemical Products Limited. Road Zhiyuan, temper forward. Zhengzhou Longda Chemical Products Co., Ltd. (www.longdahuagong.com/) aims to become and you win symbiosis, strategic partners to move forward, more determined to become the most influential of inorganic acid companies, and you leap together to success !