Process for preparing barium-containing dispersion
Abstract
Abstract PROCESS FOR PREPARING A HIGHLY BASIC BARIUM-CONTAINING DISPERSION WHEREIN THE PROCESS COMPRISES: (A) FORMING AN ADMIXTURE OF OIL-SOLUBLE DISPERSING AGENT (E.G. SULFONIC ACID), NONVOLATILE DILUENT, PROCESS SOLVENT AND WATER, (B) ADDING TO THE ADMIXTURE A SOLUTION OF BASIC BARIUM COMPOUND (E.G. BAO) IN THE ALCOHOL (E.G. METHANOL OR METHOXY ETHANOL)-FROM ABOUT 55 TO LESS THAN ABOUT 90%, PREFERABLY FROM ABOUT 65 TO ABOUT 75%, OF THE TOTAL REQUIREMENT IS ADDED, (C) PASSING CO2 THROUGH THE ADMIXTURE, (D) ADDING TO THE CARBONATED ADMIXTURE A SOLUTION OF BASIC BARIUM COMPOUND IN ALCOHOL (REMAINDER OF THE REQUIREMENT), (E) REMOVING VOLATILES AND (F) CARBONATING THE ADMIXTURE. THE SALIENT FEATURES OF THE PROCESS ARE (1) ADDING FROM ABOUT 55 TO LESS THAN ABOUT 90%, PREFERABLY FROM ABOUT 65 TO ABOUT 75%, OF THE ALCOHOLIC SOLUTION OF BASIC BARIUM COMPOUND PRIOR TO CARBONATION AND (2) THE TEMPERATURE AT WHICH THE FIRST CARBONATION IS CONDUCTED.
Inventors
- 👤 Roy C Sias
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-12 | 1976-03-13 | 1976-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-12 | 1980-03-13 | 1980-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-12 | 1984-03-13 | 1984-09-12 | $7700.00 | Window Closed / Lapsed |