Question

CH4->C2H4->C2H5OH->CH3CHO->CH3COOH перетворити

Answer 1

1) 2CH4»C2H2

C2H2 + H2» C2H4

2) C2H4 + H2O» C2H5OH

3) C2H5OH + CuO» CH3CHO + Cu + H2O

4) CH3CHO + Ca(OH)2» CH3COOH

Answer 2

Chemical Transformation of CH4 to CH3COOH

The transformation of CH4 to CH3COOH involves several intermediate steps. Here's a detailed breakdown of the process:

1. Conversion of CH4 to C2H4: - The conversion of CH4 (methane) to C2H4 (ethylene) can be achieved through a process called steam cracking or pyrolysis. This involves subjecting methane to high temperatures (500–900°C) in the presence of steam. - "Methane can be converted to ethylene by steam cracking at 750–950°C" .

2. Conversion of C2H4 to C2H5OH (Ethanol): - The conversion of C2H4 to C2H5OH (ethanol) typically involves a hydration reaction, where C2H4 reacts with water in the presence of a catalyst to form ethanol. - "Ethanol can be produced from ethylene by hydration in the presence of a catalyst such as phosphoric acid" .

3. Conversion of C2H5OH to CH3CHO (Acetaldehyde): - The conversion of C2H5OH (ethanol) to CH3CHO (acetaldehyde) can be achieved through the partial oxidation of ethanol. - "Acetaldehyde can be produced by the partial oxidation of ethanol" .

4. Conversion of CH3CHO to CH3COOH (Acetic Acid): - The conversion of CH3CHO (acetaldehyde) to CH3COOH (acetic acid) involves the oxidation of acetaldehyde. - "Acetic acid is produced by the oxidation of acetaldehyde" .

In summary, the transformation of CH4 to CH3COOH involves a series of chemical reactions including steam cracking of methane to ethylene, hydration of ethylene to ethanol, partial oxidation of ethanol to acetaldehyde, and oxidation of acetaldehyde to acetic acid.

Let me know if you'd like to explore any of these steps in more detail!