stainless steel reaction kettle resin production and operation of the 12 major steps
resin reaction kettle in the production process, it should be how the correct operation? The following Xiaobian from 12 steps: 4, the material overflow, should be treated immediately. The light can be added silicone defoamer, reduce the surface tension, the production returned to normal. When the material overflow is serious, it should be immediately stopped heating, cooling treatment. 5, the production process of material colloidized, should take immediate measures to cool. Material is colloidized, can take measures to stop and depolymerizing agent gel renewal, production to return to normal after to continue production. 6 resin in the reaction process, in case of a sudden power outage or water, should immediately stop heating, with carbon dioxide (or nitrogen) and other inert gases instead of mechanical stirring, in order to prevent colloidization. And should take the corresponding measures or emergency out of stock. 7, resin materials should be cooled in a reaction kettle, the discharge temperature should be consistent with its technical requirements. 8, the material in the reaction kettle is exhausted, should according to the production schedule timely ingredients or inject the cleaning liquid, prevent the reaction kettle residual material. 9, resin dilution operation should pay attention to control the temperature, the temperature should not exceed the dilution of the initial boiling point solvent dilution. The rate of resin injection should be controlled to prevent the generation of static electricity. If the process has special high temperature requirements, reliable safety measures should be taken. 10, diluted tank material drained, according to production schedule timely ingredients or inject cleaning liquid, prevent dilute kettle residual material. 11, against the charge of dilute reactor should be determined according to the technological requirements of loading properties of the resin production varieties and materials, but should not be more than 80% diluted reactor capacity to prevent overflow of material. Safety technical measures of
and a compound to generate another elemental and another kind of compounds called replacement reaction. Is one of the basic types of chemical reactions, the replacement refers to the composition elements of some elemental substitution elements and compounds in the replacement reaction are common:
such as active metal with acid or salt can occur replacement reaction:
Zn+H2SO4 ====ZnSO4+H2 = (rare);
lively non metal can be replaced by non reactive non metal:
2F2+2H2O====O2 = +4HF
replacement reaction will be the redox reaction.
replacement refers to a certain element compound is composed of elemental elements substitution.
a less active metal or hydrogen, for example:
Zn+2HCl=H2 = +ZnCl2
more active non metal replacement of the less active non metal, such as:
Substitution reaction occurs between
solution or gas at room temperature, and the substitution reaction between gas and solid or two solid state is usually carried out under high temperature.
;  Electron transfer occurred in the
substitution reaction, both of which belong to the redox reaction.
;  Substitution of metal and acid with
is a reaction between the metal atom and the hydrogen in the acid solution. Such as:
(4) valve, pressure gauge, safety valve installation and by tightening the nut, namely, to achieve the effect of sealing, the sealing surface of the arc connecting two no relative rotation of all screw connection parts in the assembly, shall apply lubricant or oil mixed with graphite, so as not to bite dead. The use of the valve: needle valve line seal, just gently turn the valve needle, pressing the sealing surface that can achieve good sealing performance, the prohibition of excessive force, so as not to damage the sealing surface.
high temperature and high pressure reactor using C-276 alloy, is a tungsten containing nickel chromium molybdenum alloy, very low silicon carbon content, ha’s C-276 alloy is considered to be a universal corrosion resistant alloy. The main resistance to wet chlorine, all kinds of oxidation chloride, chloride solution, sulfuric acid and oxidizing salt, in low temperature and medium temperature hydrochloric acid has a good corrosion resistance. In the past thirty years, in the harsh environment, such as chemical, petrochemical, flue gas desulfurization, pulp and paper, environmental protection and other industrial fields have a wide range of applications.
physical properties of Hastelloy C-276 alloy are shown as follows: