Claims
- 1. A process for the preparation of aminophenylhydroxyphenyl alkanes which comprises:
- providing a tarry residue of higher boiling by-products of the condensation of phenol and a ketone obtained by distillation/evaporation of a mother liquor obtained after separation of bisphenol;
- heating the tarry residue with an arylamine salt; and
- separating the resulting aminophenylhydroxyphenyl alkanes.
- 2. The process of claim 1 wherein heating is to a temperature within the range of from about 100.degree. C. to 200.degree. C. under atmospheric pressures.
- 3. The process of claim 1 wherein separation is carried out by precipitation at pH of from about 10 to 12.
- 4. The process of claim 1 wherein the arylamine is of the formula: ##STR4## wherein R.sub.1, and R.sub.2 are each independently selected from the group consisting of hydrogen and alkyl; each R3 independently represents hydrogen, halogen, hydrocarlyl or alkoxy.
- 5. The process of claim 4 wherein the arylamine is aniline.
- 6. The process of claim 1 wherein the phenol is of the formula: ##STR5## wherein each R.sub.3 is independently hydrogen, halogen, hydrocarbyl or alkoxy and the ketone is of the formula: ##STR6## wherein R.sub.1 and R.sub.2 are each independently alkyl.
CROSS-REFERENCE TO RELATED APPLICATIONS
This is a continuation-in-part of application Ser. No. 08/732,109 filed Oct. 15, 1996, abandoned.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
4327229 |
Mendiratta |
Apr 1982 |
|
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
732109 |
Oct 1996 |
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