| 4499312 |
Complex formed to separate 3,5-xylenol or 3,4-xylenol from other polymethylated phenolic compounds |
— |
1985-02-12 |
| 4496774 |
Complex formed to separate nitrated phenolic compounds from other phenolic compounds |
— |
1985-01-29 |
| 4480140 |
Process for alkylating phenolic compounds to produce ortho or para-monoalkylated or 2,4- or 2,6-dialkylated phenols |
— |
1984-10-30 |
| 4479019 |
Complex formed to separate nitrated phenolic compounds from other phenolic compounds |
— |
1984-10-23 |
| 4475001 |
Process for alkylating phenolic compounds to produce ortho- or para-monoalkylated phenols or 2,4- or 2,6-dialkylated phenols |
— |
1984-10-02 |
| 4469901 |
Complex formed for separating isopropylated m-cresols |
— |
1984-09-04 |
| 4469900 |
Complex formed for separating chlorinated phenols |
— |
1984-09-04 |
| 4447658 |
Process for separating 3,5-xylenol or 3,4-xylenol from other polymethylated phenolic compounds |
— |
1984-05-08 |
| 4447654 |
Process for separating nitrated phenolic compounds from other phenolic compounds |
— |
1984-05-08 |
| 4431846 |
Reduction of o-ethylphenol in m,p-cresol by preferential t-butylation |
— |
1984-02-14 |
| 4429169 |
Process for separating isopropylated m-cresols |
— |
1984-01-31 |
| 4429168 |
Process for separating chlorinated phenols |
— |
1984-01-31 |
| 4424381 |
Process for separating dihydric phenols |
— |
1984-01-03 |
| 4423253 |
Process for separating t-butylated phenols |
— |
1983-12-27 |
| 4394526 |
Para-cresol halide salt complex useful for separating para-cresol from meta-cresol |
— |
1983-07-19 |
| 4267389 |
Process for separating para-cresol from a mixture of methylated and ethylated phenols |
— |
1981-05-12 |
| 4267390 |
Process for obtaining para-cresol and meta-cresol from a mixture of methylated and ethylated phenols characterized by selective complexation with calcium bromide and sodium acetate |
— |
1981-05-12 |
| 4267391 |
Process for obtaining para-cresol and meta-cresol from a mixture of methylated and ethylated phenols characterized by urea clathration of metal-cresol |
— |
1981-05-12 |
| 4267392 |
Process for obtaining para-cresol and meta-cresol from a mixture of methylated and ethylated phenols containing meta-para-cresol |
— |
1981-05-12 |