Boots – shoes – and leggings
Patent
1987-12-18
1989-12-19
Lall, Parshotam S.
Boots, shoes, and leggings
364510, 364502, G06F 1546, G05D 700
Patent
active
048887048
ABSTRACT:
The control strategies include controlling the slurry concentration (SCON) by making an energy balance calculation around a slurry reactor and a material balance of liquid in, and liquid and solids out, of the reactor to determine the SCON. The feed rate of a diluent (hexane) stream into the reactor is adjusted to cause the SCON to approach or be at a target SCON. Further the control strategies include controlling the melt flow rate (MFR) by measuring the temperature and pressure in the slurry reactor and by gas chromatography, determining the ratio of hydrogen to propylene, calculating the MFR from a correlation developed from polypropylene process results from these parameters and then adjusting the feed rate of a hydrogen stream into the reactor to cause the MFR to approach or be at a target MFR which will yield a desired product of polypropylene.
REFERENCES:
patent: 3146223 (1964-08-01), Cheney
patent: 3225023 (1965-12-01), Hogan et al.
patent: 3290116 (1966-12-01), Carroll
patent: 3594559 (1971-07-01), Pemberton
patent: 3614682 (1971-10-01), Smith
patent: 3800288 (1974-03-01), Russell et al.
patent: 4448736 (1984-05-01), Emery et al.
patent: 4472131 (1988-05-01), Asanuma et al.
patent: 4491924 (1985-01-01), Agarwal
patent: 4628034 (1986-12-01), Hofferber
patent: 4742472 (1988-05-01), Sugimori et al.
Brockmeier Norman F.
Lindahl Harold A.
Topliss Robert J.
Amoco Corporation
Lall Parshotam S.
Magidson William H.
Makay Christopher L.
Medhurst Ralph C.
LandOfFree
Advanced control strategies for melt flow rate and reactor conce does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Advanced control strategies for melt flow rate and reactor conce, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Advanced control strategies for melt flow rate and reactor conce will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1906877