US4848387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for segregated introduction of two liquids into a chemical reactor vessel at a common entry point
Assignee: Mobil Oil AS
•
Filing: 1987-09-22
•
Granted: 1989-07-18
•
Expires: 2007-09-22
Abstract
Abstract Two liquid comonomers are fed into a catalytic reactor through two separate concentric flow courses having pass through in a Tee-fitting connected to the reactor by a nipple. The two flow courses have spaced apart termination locations within the reactor and there is thereby avoided any possibility of commingling or cross-contamination of the two liquids at any time before they outflow within the reactor from their respective flow courses.
Inventors
- 👤 Clarence C. Hon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:01
CPC Classifications
B; B01; B01J; B01J4/00; B01J4/001; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/8593; Y10T137/86348; Y10T137/86372; Y10T137/87571; Y10T137/87676; Y10T137/87684
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
153 words
A method for introducing two chemically reactive monomer liquids into a polymer reactor vessel at a common entry location on said vessel and in manner as maintains said liquids segregated one from the other until they are at desired infeed locations interiorally of the vessel, said method comprising feeding one chemically reactive monomer liquid through a central flow course and the other chemically reactive monomer liquid in a flow course encircling the first flow course, said feeding being carried out so that said chemically reactive monomer liquid flowing through said central flow course is not allowed to flow into and commingle with said flow course encircling said first flow course, and terminating the central flow course more interiorly of the vessel than the encircling flow course whereby the one chemically reactive monomer liquid infeeds to the vessel interior at a location removed from that at which the other chemically reactive monomer liquid infeeds.
Claim 2
Independent Claim
153 words
A method for introducing two chemically reactive monomer liquids into a polymer reactor vessel at a common entry location on said vessel and in manner as maintains said liquids segregated one from the other until they are at desired infeed locations interiorally of the vessel, said method comprising feeding one chemically reactive monomer liquid through a central flow course and the other chemically reactive monomer liquid in a flow course encircling the first flow course, said feeding being carried out so that said chemically reactive monomer liquid flowing through said central flow course is not allowed to flow into and commingle with said flow course encircling said first flow course, and terminating the central flow course more interiorly of the vessel than the encircling flow course whereby the one chemically reactive monomer liquid infeeds to the vessel interior at a location removed from that at which the other chemically reactive monomer liquid infeeds.
Claim 3
Dependent Claim
19 words
The method of claim 1 in which the two chemically reactive monomer liquids are comonomers of hexene and butene.
References Cited (Backward Citations)
US173160A
Cited
US142120A
Cited
US676366A
Cited
US1022968A
Cited
DE477211C
Cited
US1981611A
Cited
US2646821A
Cited
US2537119A
Cited
US2682277A
Cited
US2775259A
Cited
US2998016A
Cited
US4224282A
Cited
US4461743A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-17 | 1993-01-16 | 1993-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-17 | 1997-01-16 | 1997-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-17 | 2001-01-16 | 2001-07-18 | $7700.00 | Window Closed / Lapsed |