Bimmer
New member
Ok, for one of my college finals I have to convert this chemical into another one doing all the research myself. I have only found this so far but do not understand it to well. Any help would be apreciated. Im just looking for this to be broken down into English.
Conversion process from Hydroxylimine to freebase
1. Certain weight of Hydroxylimine, assay 95% min, add in 1.5 times weight of Ethyl Benzoate, heat to 40 50 C to dissolve Hydroxylimine basically.
2. Cool the solution to 20 C, keep stiring and add in HCl vapor till pH 1.5 2.0.
3. Heat the solution to 180 C, hold on 30 minutes.
4. Cool the solution to 0 C, hold on 2 hours, filter or centrifugate to separate liquid and get dry compound.
5. Dry the compound at 80 C for 6 hours, now appears brown colour.
6. Add in 10 times weight of water, heat the solution to 70 C, add in 5% weight of active carbon, stir up 30 minutes.
7. Filter to separate carbon, add in active carbon as the above and filter again, totally three times of adding in carbon and filtering, each time the effective compound in container must be cleaned up by water and filtered to ensure collecting everthing. The final filterd liquid should be yellowish colour.
8. Cool the liquid to 20 C, add in 10% NaOH solution, till pH 8 9, now obtain freebase lye. The flake caustic (NaOH) must be in high grade and dissolved by distilled water.
9. Centrifugate the lye at 20 C, dried by heating at about 60 C, start from 50 C and gradually up to 80 C for 24 hours. It takes long time drying due to low Melting point of freebase.
Notice:
1. To heat the solution to 180 C, a porcelain enamel electrical heating reactor should be used. The reactor is jacketed, the electrical heated oil in between the jacketed walls. The process of heating must be in a short time (1 2 hours). So the reactor should be with higher power, not less than 15 KW, and a good insulatiing layer.
2. For a better reaction, the input of one batch should not be larger than 30 kgs. The reactor size is 100 litre.
3. Ethyl Benzoate has strong odor.
Molecular Structure of Hydroxylimide and freebase:
The yield of freebase from Hydroxylimide is 80%, of k hcl 88%.
Conversion process from Hydroxylimine to freebase
1. Certain weight of Hydroxylimine, assay 95% min, add in 1.5 times weight of Ethyl Benzoate, heat to 40 50 C to dissolve Hydroxylimine basically.
2. Cool the solution to 20 C, keep stiring and add in HCl vapor till pH 1.5 2.0.
3. Heat the solution to 180 C, hold on 30 minutes.
4. Cool the solution to 0 C, hold on 2 hours, filter or centrifugate to separate liquid and get dry compound.
5. Dry the compound at 80 C for 6 hours, now appears brown colour.
6. Add in 10 times weight of water, heat the solution to 70 C, add in 5% weight of active carbon, stir up 30 minutes.
7. Filter to separate carbon, add in active carbon as the above and filter again, totally three times of adding in carbon and filtering, each time the effective compound in container must be cleaned up by water and filtered to ensure collecting everthing. The final filterd liquid should be yellowish colour.
8. Cool the liquid to 20 C, add in 10% NaOH solution, till pH 8 9, now obtain freebase lye. The flake caustic (NaOH) must be in high grade and dissolved by distilled water.
9. Centrifugate the lye at 20 C, dried by heating at about 60 C, start from 50 C and gradually up to 80 C for 24 hours. It takes long time drying due to low Melting point of freebase.
Notice:
1. To heat the solution to 180 C, a porcelain enamel electrical heating reactor should be used. The reactor is jacketed, the electrical heated oil in between the jacketed walls. The process of heating must be in a short time (1 2 hours). So the reactor should be with higher power, not less than 15 KW, and a good insulatiing layer.
2. For a better reaction, the input of one batch should not be larger than 30 kgs. The reactor size is 100 litre.
3. Ethyl Benzoate has strong odor.
Molecular Structure of Hydroxylimide and freebase:
The yield of freebase from Hydroxylimide is 80%, of k hcl 88%.
