OPTICHEM multifunctional window autoclave in the reaction process visualization|OPTICHEM multifunctional window autoclave in the reaction process visualization

 

OPTICHEM multifunctional window autoclave reaction process
————– visualization of vivid visual image revealed to hide in the mystery of the process of information, let the vast experimental data with life, touch change, perception, get more information from the reaction process is complicated in the process of data visualization of —- video
OPTICHEM multifunctional window autoclave
OPTICHEM multifunctional autoclave technology features:  

set into a kettle cover bracket integrated kettle quick release plate


310S stainless steel use|310S stainless steel use

310S heat resistant steel is widely used in high temperature environment as an important material in aerospace and chemical industry. High temperature oxidation corrosion under high temperature is the most common and most important, so the new material with high temperature oxidation resistance of [1] has far-reaching significance for China’s aviation industry, chemical industry and national defense research and development. 310S austenitic stainless steel (0Cr25N I20) is a high chromium nickel austenitic stainless steel

The role of

nickel in stainless steel is to play out after the

1 nickel is an excellent corrosion resistant material, and it is also an important alloying element of alloy steel. Nickel in steel is austenite formation elements, but the low carbon nickel steel to obtain pure austenite and nickel content to achieve 24%; and only 27% of nickel to steel corrosion resistance in some medium significantly change. So the nickel can not alone constitute stainless steel. However, nickel and chromium exist simultaneously in stainless steel, nickel containing stainless steel but has many valuable properties.

The

above shows based on nickel as alloying element in stainless steel, is that it makes the high chrome organization changes, so that the stainless steel corrosion resistance and process performance obtained certain improvement.

2 Mn and N can be replaced by Ni

in Cr Ni stainless steel.The advantages of

chromium nickel austenitic steel although many, but in recent decades due to refractoloy and nickel below 20% heat resistant steel large development and application, and the chemical industry development needs more and more and the stainless steel, nickel deposits less and concentrated distribution in the minority area. Therefore, in the world there is a contradiction in the supply and demand of nickel. So in the field of stainless steel and many other alloys (such as forging steel, tool steel, heat resistant steel etc.), especially the lack of nickel resources, widely carried out section of nickel and nickel with other elements of the generation of scientific research and production practice, research in this area and use the more it is with manganese and nitrogen to replace nickel in stainless steel and heat resistant steel.

The effect of

3 Mn on austenite is similar to the nickel. But rather, the role of manganese is not formed austenite, but it reduced the critical quenching speed of steel, increasing the stability of austenite during cooling, inhibit decomposition of austenite, the high temperature formed austenite to maintain the normal temperature. In improving the corrosion resistance of the steel, the role of manganese is not big, such as the amount of manganese in steel from 0 to 10.4% changes, also does not make the steel in the air and acid corrosion resistance of the obvious change. This is because there is little effect to improve the electrode potential of Mn Fe based solid solution, the protective effect of the oxide film is very low, so the industry has to alloying austenitic manganese steel (such as 40Mn18Cr4,50Mn18Cr4WN, ZGMn13 steel), but they cannot be used as stainless steel. The role of manganese in the stable austenite of the steel is about 1/2 of the nickel, 2% of the nitrogen in the steel is also the role of stable austenite, and the extent of the role of greater than the nickel. For example, >

Operation flow of high pressure reactor with heat transfer oil|Operation flow of high pressure reactor with heat transfer oil

one, the boot process:

1, open the high temperature cycle heater switch, start to heat transfer oil.

2, remove the kettle lid on the nut, with the hand wheel to lift the kettle lid, start feeding.

3, after finishing the material with a soft paper wipe clean kettle cover and the mouth of the sealing surface,

4, start to fall the kettle cover and screw on the nut with a torque wrench, (Note: when the nut is screwed, with the force of 100N).

5, open the control box on the power switch, adjust the speed of the stirring motor, it is best to work in the speed of 800 rpm.

6, check the kettle cover on all valves and shut.

7, started to open the high temperature cycle of the cycle switch, then the kettle temperature began to rise, began to react. (when the temperature is high, the operation should pay attention to burn).

two, shutdown process:

1, turn off the high temperature cycle power and cycle switch,

2, to the kettle and the inner layer of the cooling water,

3, to the kettle temperature drop to 80 degrees Celsius and the speed to 0 rpm, turn off the control box power switch.

4, open the pressure relief valve, when the pressure is 0Mpa to open the lid (no pressure to remove the kettle cover).

5, open the lid of the kettle and remove the material (liquid from the bottom of the discharge release, solid from the mouth of the kettle).

6, the reactor cleaning and dry wait for the next use.

7, the reactor is not used when all the valve should be kept open.

Characteristics of electric heating reactor|Characteristics of electric heating reactor

1, electric heating stainless steel reaction vessel has excellent mechanical properties, can withstand high working pressure, can withstand the impact of bulk solid material feeding.

The heat resistance of

2 and electric heating stainless steel reaction kettle is good, and the working temperature range is very wide. At higher temperatures, the skin will not be oxidized.

3, electric heating stainless steel reactor has a good corrosion resistance, no rust.

The heat transfer effect of

4 and electric heating stainless steel reaction kettle is better than that of enamel reactor, and the heating and cooling rate is fast.

5, electric heating stainless steel reaction kettle has good performance, the kettle wall can be polished and polished, so that it does not hang material, easy to clean.

6, electric heating stainless steel reaction kettle investment is less than the heat conduction oil circulation heating stainless steel reaction kettle.

Characteristics of the major compounds of sodium|Characteristics of the major compounds of sodium

of sodium peroxide

chemical formula Na2O2, light yellow powder, density 2.805g/cm3. It has strong oxidation, in the molten state encountered cotton, carbon powder, aluminum powder and other reducing substances will explode. Therefore, should pay attention to the safety of storage, can not contact with flammable materials. It is easy to absorb moisture, in case of water or CO2 will react to generate oxygen. It is insoluble in ethanol, and carbon dioxide in the air and release oxygen, commonly used in the absence of air situation, such as mines, tunnels, diving, spacecraft and so on, will further change people exhaled carbon dioxide to oxygen, for people to breathe in. Sodium peroxide is commonly used in industry as a bleaching agent, disinfectant, disinfectant, deodorant, oxidant etc.. Usually in dry air free of carbon dioxide in the flow of sodium metal is heated to 300 DEG C to produce sodium peroxide. Because it is easy to deliquescence, easy and carbon dioxide reaction, must be stored in sealed containers.

sodium chloride

commonly known as salt, is a colorless cubic crystal or white crystal. Density 2.165g/cm3. Melting point 801. Boiling point 1413. Soluble in water, glycerin, slightly soluble in ethanol, ammonia. Insoluble in hydrochloric acid. The slight deliquescence in the air. By the sea water (containing an average of 2.4% sodium chloride) introduced by sun drying, salt, concentration and crystallization, prepared crude. It will be water, steam heating, sand filter, concentrated by ion exchange membrane electrodialysis, get salt (sodium chloride containing 160 ~ 180g/L) by evaporation precipitation of bittern gypsum, centrifugal separation, preparation of sodium chloride 95% (2% moisture) after drying can be made of salt (table  salt). Can also be used as raw materials, salt Saline Lake brine, after sun drying, preparation of crude salt. Underground brine and salt as raw material, through three or four effect evaporation, crystallization, centrifugal separation system. Used in the manufacture of soda and caustic soda and other chemical products, ore smelting. Food industry and fisheries for salt, but also can be used as raw materials and refined salt seasoning salt.

sodium hydroxide

commonly known as caustic soda, caustic soda, caustic soda, caustic soda. Pure anhydrous sodium hydroxide is white, translucent, crystalline solid. Sodium hydroxide is very soluble in water, the solubility increases with the increase of temperature, the dissolution can release a lot of heat, 288K its saturated solution concentration of up to 26.4mol/L (1:1). Its water solution is astringent and soapy, in alkaline solution, with all the characteristics of alkali. Commercially available caustic soda has two kinds: solid and liquid: pure solid caustic soda is white, there are massive, flake, stick, granular, brittle; pure liquid caustic soda is colorless transparent liquid. Sodium hydroxide is easily soluble in ethanol and glycerol; but insoluble in ether, acetone, ammonia. To the fiber, the skin, the glass, the ceramics and so on has the corrosion function, the solution or the concentrated solution dilution can release the heat