Methyl Acetate Plant

Methyl Acetate Plant
Proprietary Technologyand Plants
Technology Introduction:
The methyl acetate production process SL TEC propose is based on the condensation of acetic acid and methanol over a solid acid catalyst. This kind of catalyst is the best solution when high yields, low acetic acid and methanol consumption, consistent product and low equipment corrosion are required on reliable basis. Under normal operation, this catalyst has an average service life of three years or longer.
The reaction conditions are moderate, however, as methyl acetate, methanol and water will form binary and tertiary azeotropic mixtures, it is very difficult to prepare high purity product by conventional methods.
In the traditional process, one reactor and nine distillation columns are required to produce high purity methyl acetate. And they have main disadvantages incl.
 
1. The synthesis of methyl acetate is reversible, and due to the limitation of chemical equilibrium, the conversion yield is low.
2. Methyl acetate-water binary azeotrope, methyl acetate-methanol binary azeotrope, and methyl acetate-methanol-water ternary azeotrope have boiling points quite close to that of azeotrope, thereby, it is difficult to separate and the product purification is very complicated.

Distillation is a process of separating the component substances from a liquid mixture by selective evaporation and condensation. The vacuum distillation has many like lower energy requirement, better quality products and less scaling on the distillation trays due to sludge. The vacuum distillation produces ethanol of international quality standards and there is a lot of demand of ethanol from the vacuum distillation process. Distillation Process in which the components of a substance or liquid mixture are separated by heating it to a certain temperature and condensing the resulting vapors. Some substances have components that vaporize at different temperatures and thus can be separated by condensing their vapors in turn. Distillation is also used as a purification process in which non-volatile components are separated from volatile ones.

There are 4 main prevailing processes for ethyl acetate production, i.e. Direct Esterification Process, Acetaldehyde Condensation Process, Ethanol Dehydration Process and Acetic Acid-Ethylene Addition Process. Each process has its advantages and its applicable services. Our process is based on reactive-distillation esterification, which is mature, low costing and suitable for those with acetic acid feedstock.
Technical Features:
Advantages of Our Ethyl Acetate Plant and Process Technology
In our reactive distillation process, organic acid catalyst is used; its advantages cover the followings:
â?¢ Low ethanol consumption
â?¢ Low catalyst dosage
â?¢ High catalysis activity
â?¢ Low equipment corrosion
â?¢ Less side reactions
â?¢ Higher product purity
â?¢ Simple post-treatment operations

CAS 79-20-9

HS cose 2915390090

1.Methyl acetate is a fast drying solvent of nitrocellulose and cellulose acetate, which is used in paints and coatings.

2. It is also used in the manufacture of artificial leather and spices and as an extractant of oil.

3.It is also a raw material for making dyes .

4. In the experimental study, it is used as standard material and solvent for chromatographic analysis, and also used for the separation of lithium chloride from alkali metal chloride and the synthesis of spices.

Methyl acetate is an important solvent and organic chemical raw material. It is used in Production of oil and diesel. High-purity methyl acetate is also widely used in the synthesis of acetic acid, acetic anhydride, methyl acrylate, vinyl acetate and acetamide. The carbonylation of methyl acetate to produce acetic anhydride is currently the most economical process for producing acetic anhydride, and its market application prospects are very broad. The market price of high-purity methyl acetate is 2~4 times higher than low-purity methyl acetate. Therefore, the production of high-purity methyl acetate has greater economic benefits.

Used

1.Methyl acetate is a fast drying solvent of nitrocellulose and cellulose acetate, which is used in paints and coatings.

2. It is also used in the manufacture of artificial leather and spices and as an extractant of oil. .It is also a raw material for making dyes.

3. In the experimental study, it is used as standard material and solvent for chromatographic analysis, and also used for the separation of lithium chloride from alkali metal chloride and the synthesis of spices.

We are a leading supplier of electroplating chemicals, industrial polishing and welding consumables, water treatment, powder coating, fertilizers. We stock and carry an extensive range of ready to use chemicals. We deal with so many different chemicals and we would like you to contact us for more information about our different chemicals and products.

Proprietary Technology and Plants 
SL TEC has 15 years experience in acetic acid industry from technology R&D, plant design, engineering, and operation, has several reference plants and can ensure the safe, long term and stable running of the plant.
Our advantages lie in the following aspect:
1) The stability of catalyst is better compared to other process
2) The activity is better
3) The selectivity is higher
4) The process flow is short
5) Less equipment is required
6) The investment is lower
7) The enginery consumption is lower

There are 4 main prevailing processes for ethyl acetate production, i.e. Direct Esterification Process, Acetaldehyde Condensation Process, Ethanol Dehydration Process and Acetic Acid-Ethylene Addition Process. Each process has its advantages and its applicable services. Our process is based on reactive-distillation esterification, which is mature, low costing and suitable for those with acetic acid feedstock.
Technical Features:
Advantages of Our Ethyl Acetate Plant and Process Technology
In our reactive distillation process, organic acid catalyst is used; its advantages cover the followings:
Low ethanol consumption
Low catalyst dosage
High catalysis activity
Low equipment corrosion
Less side reactions
Higher product purity
Simple post-treatment operations

There are two prevailing processes for sec-butyl acetate (SBA) production, i.e. iso-butanol-acetic acid esterification process and n-butene -- acetic acid addition process. Due to its much lower production cost, new SBA plants usually use the Addition Process, which is the very technology SL TECH provides. It consists of four units, feedstock purification unit, esterification unit, product separation unit and acetic acid recovery unit. Compared to the Esterification Process, the Addition Process for SBA production has advantages such as shorter process flow, less equipment and lower production cost (50-60% of Esterification Process); lower energy consumption (only 5% of Esterification Process); easy operation, lower maintenance cost and lower operation cost; harmless and poisonless solid acid catalyst, less pollution, less equipment corrosion.