PolycarbodiiMide synthesis
- Product Name:PolycarbodiiMide
- CAS Number:151-51-9
- Molecular formula:CH2N2
- Molecular Weight:42.04
67-56-1
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Yield:-
Reaction Conditions:
with MoVPFeCeCrKSiO;ammonia at 350;Green chemistry;
Steps:
2 Example 2: Synthesis of carbodiimide
The catalyst composition, amount and reactor are the same as in Example 1. Methanol was fed by a liquid metering pump with a flow rate of 0.03 ml / m (liquid), an ammonia to alcohol ratio of 2, an air flow rate of 120 ml / m at room temperature, an ammonia flow rate of 33.6 ml / m.Methanol, ammonia and air mixture into the preheater, preheated to about 350 , and then into the reactor.The catalyst loading (or raw material weight space velocity) was 0.48 g ammonia / g catalyst.hour, 0.45 g methanol / g catalyst.hour.Inlet gas airspeed 2336h-1. Furnace temperature 350 .Atmospheric reaction conditions, the feedstock on the catalyst residence time of about 0.67 seconds.The reaction product enters the water absorber for absorption.After 60 ° C vacuum evaporation dehydration,A carbodiimide 6-mer H- (N = C = N-) 6H light yellow solid was obtained.
References:
CN106995388,2017,A Location in patent:Paragraph 0039; 0040; 0041
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557-01-7
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120-73-0
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108-53-2
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144-62-7
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557-01-7
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151-51-9
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108-53-2
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120-73-0
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