Technical file sharing

編號 文件標題 摘要
1 Discussion on sedimentation effect of zinc salt and phosphate in cooling water In some factories, there is a problem of low total phosphorus in the long-term. In order to clarify why the total phosphorus agent disappeared, it was tested in a factory after discussion with the customer. The test result is that adding excessive zinc salt will increase the co-precipitation of zinc phosphate to zinc phosphate. The probability of the substance, after the test is maintained for nearly 2 to 3 months, the water quality of the phosphate continues to rise, and the controllable water quality is restored. By extending this method to other plants, testing to reduce the total amount of zinc salt dosing, maintaining the zinc salt concentration, the total phosphate and total organic phosphate also rise simultaneously.
2 Boiler AVT (full volatilization) program test AVT new drug development and factory testing, full evaporation solution can avoid phosphate hiding problem
3 Aromatic Hydrocarbon Distillation Tower Process Addition Improvement Project Cinyea provides water quality, test strip tracking and dosing control equipment to achieve stable anti-corrosion control of the system; and to solve the problem of poor heat exchange efficiency of the reboiler at the bottom of the distillation tower in the plant, adding the soil stripper to the equipment before the repair The benefits are: improvement of heat exchange efficiency, reduction of steam consumption, improvement of heat transfer efficiency, and estimation of the plant's savings of 170-3.9 million yuan/month.
4 Development of boiler deoxidizer (DEHA) catalyst DEHA is a good deoxidizer. The deoxygenation requirement is lower than other types of deoxidizers. It is also a non-salt deoxidizer and does not remain in the form of crystals on the system or pipe wall. However, the literature indicates that DEHA is deoxidized. The rate is not as good as sodium sulfite. In some systems, there is a problem that the reaction time is insufficient. Therefore, an attempt is made to develop a catalyst to confirm the rate of DO consumption in a continuous detection manner. After testing, it was confirmed that the agent can increase the DEHA reaction rate.
5 Cyanide removal development Cyanide can be removed by oxidation method and metal method. In the experiment, various types of cyanide removal agents are taken to test the cyanide removal effect. Among them, the oxidation method has the best effect. Although the metal method can remove cyanide, the effect is limited.
6 New chlorine stabilizer development In line with customer needs, the development of halogen-free chlorine stabilizers, the test results are good, can effectively stabilize the concentration of residual chlorine, prolong the decline after the addition of bleach.
7 Granulation aid development counter According to the customer's request for granule granules, it is hoped that the granules of the original manufacturer will be foamed seriously, the foam is too fine and not easy to defoam. Therefore, a variety of surfactants and solvents are used to mix low foaming and easy foaming. Granulation aid
8 Formosa Hejing Steel Blast Furnace Sealed Cooling System Pickling Simulation Test and Actual Acid Pickling on Line In Vietnam, the steel blast furnace should be pickled. The bottle test has been carried out before the actual operation to estimate the amount of drug required for actual pickling. After the actual acid pickling, the reddish brown corrosion products on the surface of the pipeline have been completely removed. Although the iron tumors have residual, they have been removed obviously, and the whole surface of the pipeline is flatter than before pickling.
9 Copper removal agent (heavy metal capture agent) development test Na2S reacts with metal ions to form sulfides, which are susceptible to environmental pH. When it is acidic, it is easy to dissolve. When the water contains chelating agent such as EDTA, the effect is not good. The organic compound or polymer of sulfur is developed and tested. The measured results have excellent effects on the removal of copper or other heavy metal steps, and maintain excellent removal effects when the agent has chelating properties in water.
10 Polymerization inhibitor development test The purpose of the polymerization inhibitor is mainly to avoid polymerization of the monomer raw materials during storage, transportation, etc., and a small amount of inhibitor is often added to the monomer, and then removed before use. The general inhibitor is a solid material with low volatility and can be removed as it is distilled. The commonly used inhibitor hydroquinone (HQ) reacts with sodium hydroxide to form a water-soluble sodium salt, so it can be removed by washing with 5% to 10% sodium hydroxide solution. In this development, four drugs were compared with HQ, and the easily-preserved SM was used as a test sample for temperature-rise and endurance test. Two of the finished products had good effects, and the polymerization was effectively inhibited at a high temperature and for a long time.
11 Anti-mold agent alternative agent development In response to the unstable supply of raw material manufacturers, we are looking for alternative suppliers and confirming the effects of raw materials to ensure stable quality and good sterilization.
12 Various types of scale inhibitor effect test The scale inhibition effect test of different temperature and different doses is carried out for various scale inhibitors, and the lattice change of the scale is confirmed by SEM/EDX to determine the most suitable scale inhibition formula for various systems.
13 Development of nitrous acid-free chilled water corrosion inhibitor In response to the mainland's raw material control regulations, the development of nitrite-free chilled water agents was tested and tested well in the field.
14 Phosphorus-free pre-filming agent development In response to the increasingly stringent specifications of low-phosphorus and phosphorus-free in the mainland, the self-developed non-phosphorus pre-filming agent, after 8 hours pre-filming, the carbon steel test piece can obviously reach the blue halo surface such as phosphate pre-film, and sulfuric acid The copper solution can be tested for corrosion resistance for more than 100 seconds.
15 High-efficiency antidote development Due to the addition of oxidizing bactericides to some customer reaction systems, the latter stage of the wastewater system is paralyzed, mainly due to the excessive addition of oxidizing bactericides, which will cause the biological system to die. Cinyea Company develops antidote for oxidizing bactericides through ORP and the effective residual chlorine tracking effect is currently used stably in multiple plants.