PL8918B1 - Method for obtaining alkylisopropylene phenols - Google Patents
Method for obtaining alkylisopropylene phenols Download PDFInfo
- Publication number
- PL8918B1 PL8918B1 PL8918A PL891827A PL8918B1 PL 8918 B1 PL8918 B1 PL 8918B1 PL 8918 A PL8918 A PL 8918A PL 891827 A PL891827 A PL 891827A PL 8918 B1 PL8918 B1 PL 8918B1
- Authority
- PL
- Poland
- Prior art keywords
- phenols
- obtaining
- alkylisopropylene
- heated
- fractionation
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims 2
- 150000002989 phenols Chemical class 0.000 title 1
- 239000007859 condensation product Substances 0.000 claims description 4
- 239000000047 product Substances 0.000 claims description 3
- 238000005194 fractionation Methods 0.000 claims description 2
- 150000002576 ketones Chemical class 0.000 claims description 2
- -1 alkyl isopropylene phenols Chemical class 0.000 claims 1
- 238000000354 decomposition reaction Methods 0.000 claims 1
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- 238000004821 distillation Methods 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 2
- RLSSMJSEOOYNOY-UHFFFAOYSA-N m-cresol Chemical compound CC1=CC=CC(O)=C1 RLSSMJSEOOYNOY-UHFFFAOYSA-N 0.000 description 2
- IWDCLRJOBJJRNH-UHFFFAOYSA-N p-cresol Chemical compound CC1=CC=C(O)C=C1 IWDCLRJOBJJRNH-UHFFFAOYSA-N 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Description
Opisane w patencie Nr 8917 nowego produktami polimeryzacji pierwotnie u- rodzaju produkty kondensacji alkylofeno- tworzonych zwiazków, np, m - krezolu i li i ketonów sa, jak to tam zaznaczono, acetonu ,/ H CH' CHo CHd CH» CHo ,CHs CHo O sOH Wykryto, ze przy ogrzaniu do 300°na- do 300° materjalu wyjsciowego mozna ko- stepuje depolimeryzacja i skladniki odpe- rzystnie przyspieszyc zapomoca umiarko- dzaja sie ilosciowo. Skladniki mozna roz- wanej prózni, przyczem wysokosc prózni dzielic zapomoca destylacji. Oddestylowa- nalezy dobrac w ten sposób, aby sam pro- nie skladników ogrzanego w przyblizeniu dukt polimeryzacji nie mógl sie odpedzic.Przyklad L Produkt kondensacji, o- trzymany z m - krezolu i acetonu ogrzewa sie do 300°. Produkt ten rozklada sie przy- tem na swe skladniki, które sie odpedza i z których zapomoca destylacji czastko¬ wej mozna wydzielic cenny 3 - metylo - 6 -izoipropylenofenol.Przyklad IL Produkt kondensacji, o- trzymany z p - krezolu i acetonu ogrzewa sie, jak w przykladzie I, do 300—310°, Z destylatu udaje sie oddzielic zapomoca frakcjonowania 4 - metylo - 6 - izopropy- lenofenoL PL PLThe new polymerization products described in the new patent No. 8917 were originally a kind of condensation products of alkylphenon-formed compounds, e.g. m - cresol and li and ketones sa, as it was noted there, acetone, / H CH 'CHo CHd CH »CHo, CHs CHo O sOH It has been found that when heated to 300 ° on- to 300 ° the starting material, the depolymerization can be copied and the ingredients are advantageously accelerated by means of a moderate amount. The ingredients can be mixed with a vacuum, the amount of the vacuum divided by distillation. The distillation should be selected in such a way that the proportions of the components of the approximately heated polymerization path itself cannot be expelled. Example L The condensation product obtained from m - cresol and acetone is heated to 300 °. This product then decomposes into its constituents, which are stripped off and from which, by means of partial distillation, the valuable 3-methyl-6-isoipropylene phenol can be separated. Example IL The condensation product obtained from p-cresol and acetone is heated as in example I, up to 300-310 °, the distillate can be separated by fractionation of 4 - methyl - 6 - isopropylenophenol PL EN
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL8918B1 true PL8918B1 (en) | 1928-06-30 |
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