The borosilicate glass has a coefficient of expansion of 3.3 and is a glass containing sodium oxide (Na 2 O), boron oxide (B 2 O 3 ), and silicon dioxide (SiO 2 ) as a basic component. The borosilicate content of the glass component is relatively high, and is boron: 12.5 to 13.5%, and silicon: 78 to 80%. Therefore, this type of glass is called borosilicate glass. It belongs to the Pyrex glass in borosilicate glass. The utility model has the advantages of small thermal expansion coefficient, low temperature cracking under high temperature temperature mutation, acid and alkali resistance, water resistance, excellent corrosion resistance, good thermal stability, chemical stability and electrical properties, so it has chemical resistance and resistance. It is also known as heat-resistant glass, heat-resistant impact glass, high-temperature resistant glass, and is also a special fireproof glass because of its thermal shock resistance, good mechanical properties, high temperature and high hardness.

S-50L Double layer glass reactor

1. Withstand voltage test: water pressure test is carried out with contact pipes such as “glass pipe straight pipe” or “elbow” with a diameter of 2 inches or less. When pressurized to 4kg/cm2, no damage is allowed, in order to keep enough The safety factor should not exceed 2kg/cm2.

 

For reactors or condensers and some thin-walled products, the pressure should not exceed 2 kg/cm2 in order to retain a sufficient safety factor.

 

2. water resistance: take the glass powder sample with a diameter of 0.3-0.5mm, boil with distilled water for 1 hour, determine the precipitation of Na2O, the sample per gram can not be greater than 0.003mg.

 

3. Acid resistance: The glass sample was boiled in hydrochloric acid with a content of 20.4% for 3 hours to measure its weight loss, and the calculation was not more than 0.7 mg per 100 cm 2 of surface area.

 

4. Anti-alkali performance: The glass sample is boiled in a mixed solution of 1 equivalent of NaOH and 1 equivalent of Na2CO3 for three hours, and the weight loss is measured, and the calculation is not more than 90 mg per 100 cm 2 of surface area.

 

5. melting temperature: 1680 ° C, molding temperature: 1260 ° C, softening temperature: 830 ° C, annealing temperature: 560 ° C

1. Double-layer glass reactor is a commonly used biochemical instrument. It is widely used in modern fine chemical, bio-pharmaceutical, scientific research and other industries. It can be concentrated, distilled and recycled under constant speed, constant force and constant temperature. Separation and purification reactions are ideal instruments for teaching, experimentation, pilot testing and production. The product can be combined with circulating water vacuum pump, diaphragm vacuum pump, low temperature circulating pump, circulating cooler, high temperature constant temperature circulator, low temperature coolant circulation pump, closed refrigeration heating cycle device (also known as high and low temperature circulation device) to form a system device.

 

2. The working principle of the jacketed glass reactor of this series: through the double-layer reactor sandwich, injecting a constant temperature (high temperature or low temperature) hot solution or coolant, the material in the reactor is heated or cooled at a constant temperature, and stirring can be provided. . The material is reacted in the reaction kettle, and the evaporation and reflux of the reaction solution can be controlled. After the reaction is completed, the material can be discharged from the discharge port of the bottom of the kettle, and the operation is extremely convenient. It is an ideal equipment for modern chemical samples, petrochemicals, sample experiments, biopharmaceuticals and new materials.

2 liter glass reactor 2 liter glass reactor

1) The reaction kettle is a double-layer design, GG17 borosilicate glass material, and the middle jacket can be heated to a high temperature reaction (high temperature can reach 300 ° C, and the middle jacket can also be passed into a cold solvent to make a low temperature constant temperature reaction ( Low temperature can reach -80 °C); glass thickness: 5~7mm, the high borosilicate glass produced by our factory has proved that it can accept a large temperature difference change, the design of the interlayer has good thermal insulation effect, and it is good for constant temperature reaction. select.

 

2.) The opening of the glass kettle body of our factory is 150mm large diameter design, which is very convenient for cleaning. The lower discharge material is designed to be PTFE detachable, which facilitates the smooth release of solid and granules and reaction materials with large viscosity, no dead angle, no Sandwich material.

 

3) Double-layer glass reactor adopts high-power stirring motor, universal joint connection, digital display temperature, digital display frequency converter, stirring torque is 15000g.cm (speed is 780/min); adjustable, speed digital display It is convenient to observe the reaction of materials. Thereby adjusting the speed of stirring. No sparks, safe and reliable, long life.

 

4) The reaction vessel fixing bracket is 304 stainless steel, which is convenient to operate, has good stability, and can move smoothly;

 

5) The lid of the kettle is designed with four standard ports. The lid of the lid is: 50# (stirring), 24# (spherical condensation), 24# (deflation valve),

 

24# (constant pressure funnel), 24# (temperature measurement) opening.

 

6) The stirring rod is made of PTFE material outside the stainless steel inner core;

 

7) The mechanical lubrication of the stirring shaft is good, airtight and airtight, and has excellent chemical resistance. The lower discharge material is designed to be PTFE detachable, which facilitates the smooth release of solid and granules and reaction materials with large viscosity.

 

8) There is a scale on the kettle body.

 

9) New discharge valve, no dead angle, completely discharged.