The production method of dioctyl phthalate is optimized for higher quality products. DOP is used in various industries. For the production method of dioctyl phthalate, phthalic anhydride and iso octyl alcohol are used. It is prepared with catalysts such as titanate and then cooled.

It is then washed with water and filtered to make the final product. In this process, six primer kettles produce DOP. These steps are performed according to international standards and generally have special conditions. In this PETROPROVIDERS article, join us to show you The production method of dioctyl phthalate.

Introduction of dioctyl phthalate and its production in industries

Buy dioctyl phthalate

Buy dioctyl phthalate

This material is used in various industries. To produce DOP, primer reactions are used. In these methods, alcohol is used; Alcohol is about 99.5% retained in the composition. To produce DOP at the lowest cost, you must meet the best conditions. These conditions must be by the set standards.

It should be noted that in the DOP production process, the higher the conversion rate and reaction efficiency, the lower the production cost. To produce better quality DOP, more water and alcohol are used to make recycling easier. By doing this, the waste and pollution will be much less.

If the cost of The production method of dioctyl phthalate is reduced by up to 20%, 50% more can be produced.

A detailed review of DOP production processes worldwide

The production method of dioctyl phthalate is in the field of chemicals and chemical industries. The better the quality of the raw materials and the reaction conditions, the higher the DOP production. To produce DOP, very high-quality raw materials are needed. If the import and export of various DOP raw materials are stopped, the quality of the final product will also decrease. It is possible to produce more products by importing optimal devices for DOP production.

The first step in The production method of dioctyl phthalate is priming.

For this step, iso octyl alcohol, phthalate anhydride, and titanate catalyst are used. These ingredients are mixed and put into a lining kettle. In this kettle, the temperature rises to about 190 to 235 degrees Celsius. This temperature must remain constant during the reaction process. By combining these materials, a concentrated solution is produced. If the raw materials used at this stage are good, the purity of the final material will be very good.

At this stage, the quality of the final product can be increased by adding pure alcohol. In addition, if high-quality phthalic anhydride is used, it can increase the quality of the final product.

At this stage, the iso octyl alcohol is heated to 180 ° C at a speed of 12,692 kg per hour. The phthalic anhydride is then heated to 150 to 160 ° C. The catalytic liners must then be transferred to a sterilizing kettle at a rate of 7.5 kg / h.

The second step in producing DOP is the use of alcohol.

As mentioned, in the first stage of DOP production, high-quality alcohol is used. After combining different materials in the first stage, a concentrated solution is obtained. We know that alcohol evaporates at temperatures above 170 ° C. The alcohol is then condensed using special devices.

The activating kettle is then activated to recycle the extra products. At this stage, the temperature is reduced to about 95 to 100 ° C to cool the condensate foam. At this stage, the final product will have 2% purity.

The third step is to neutralize the solution by washing

After the solution has cooled to 95 to 100 ° C in the previous step, the foam is removed, and dilute sodium hydroxide solution is added. At this point, the temperature should remain constant at 95 degrees. Automatic temperature adjustment devices are used for this purpose. At this stage, the neutralization reactions must be reduced to make the product purer. Then, depending on the amount of solution, water is added to the solution in a ratio of 1: 3.

The fourth step in The production method of dioctyl phthalate is vacuuming.

At this stage, the product obtained in the third stage is heated. This product heats up to 145 degrees Celsius and reaches a constant temperature. At this stage, water vapor and alcohol are removed to make the product purer. The solution is then placed in a pressure chamber up to about 5 kPa and then the water vapor valve is opened.

The DOP is then pressurized to 3 kPa and the pressure is increased. This solution must then go to the bottom of the machine to be collected. Then, the substance must be collected and stored, and the alcohol must be returned to the process cycle for recycling.

The fifth step in DOP production is filtration.

At this point, the solution becomes colorless and the filtration process begins. The product is then stained and filtered again. In this process, the impurities are completely removed. In this process, large and small kettles are used to remove all impurities.

Then, at 190 ° C, 200 ° C, 210 ° C, 215 ° C, 225 ° C and 235 ° C, the product is purified. At this point, the kettles can contribute up to about 20% to the purity of the DOP.

Then, our final product, dioctyl phthalate, is ready. This material is used in various industries and the higher the quality of raw materials, the higher the quality of the final product.

Summary of the study The production method of dioctyl phthalate

dioctyl phthalate Production

dioctyl phthalate Production

In this article, we saw all the steps of The production method of dioctyl phthalate. These processes are performed in laboratories under standard conditions. Automatic devices are used to meet test schedules and temperatures to maintain standard conditions during the test. These conditions produce high-quality DOP.

These reactions take place in 5 different steps. For the production method of dioctyl phthalate, phthalic anhydride and iso octyl alcohol are used. It is prepared with catalysts such as titanate and then cooled. It is then washed with water and filtered to make the final product.

Dioctyl phthalate is used in various industries. This material is used in the manufacture of medical devices, building insulation, home appliances, and construction products. In addition, DOP is used to produce various plastic products.

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