IT1196422B - Elimination of urea prodn. plant stripper corrosion - Google Patents

Elimination of urea prodn. plant stripper corrosion

Info

Publication number
IT1196422B
IT1196422B IT22962/82A IT2296282A IT1196422B IT 1196422 B IT1196422 B IT 1196422B IT 22962/82 A IT22962/82 A IT 22962/82A IT 2296282 A IT2296282 A IT 2296282A IT 1196422 B IT1196422 B IT 1196422B
Authority
IT
Italy
Prior art keywords
image planes
prodn
elimination
urea
corrosion
Prior art date
Application number
IT22962/82A
Other languages
Italian (it)
Other versions
IT8222962A0 (en
Inventor
Giorgio Pagani
Giuseppe Faita
Ubaldo Grassini
Original Assignee
Montedison Spa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Montedison Spa filed Critical Montedison Spa
Publication of IT8222962A0 publication Critical patent/IT8222962A0/en
Priority to IT22962/82A priority Critical patent/IT1196422B/en
Priority to DE8383101198T priority patent/DE3364579D1/en
Priority to EP83101198A priority patent/EP0096151B1/en
Priority to ES519891A priority patent/ES8403531A1/en
Priority to CA000422202A priority patent/CA1211689A/en
Priority to AR292243A priority patent/AR240839A1/en
Priority to BR8301109A priority patent/BR8301109A/en
Priority to PT76639A priority patent/PT76639B/en
Priority to US07/048,458 priority patent/US4758311A/en
Application granted granted Critical
Publication of IT1196422B publication Critical patent/IT1196422B/en

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Abstract

The image display system displays image data from an image memory on multiple image planes and vertical scrolling can be independently effected for each of the image planes displayed. Assuming that two image planes are displayed on upper and lower areas, display starting addresses lying in the vertical direction of the upper and lower image planes and stored in two registers are loaded into a counter via a switch in a display period of the upper and lower image planes to generate addresses in the vertical direction of the upper and lower image planes. The vertical scrolling operation only for one of the upper and lower image planes can be effected by sequentially updating the display starting addresses lying in the vertical direction of the upper and lower image planes and held in one of the registers. @(42pp Dwg.No.4/8)@
IT22962/82A 1982-06-03 1982-08-25 Elimination of urea prodn. plant stripper corrosion IT1196422B (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
IT22962/82A IT1196422B (en) 1982-08-25 1982-08-25 Elimination of urea prodn. plant stripper corrosion
DE8383101198T DE3364579D1 (en) 1982-06-03 1983-02-08 Method for avoiding the corrosion of strippers in urea manufacturing plants
EP83101198A EP0096151B1 (en) 1982-06-03 1983-02-08 Method for avoiding the corrosion of strippers in urea manufacturing plants
ES519891A ES8403531A1 (en) 1982-06-03 1983-02-18 Method for avoiding the corrosion of strippers in urea manufacturing plants.
CA000422202A CA1211689A (en) 1982-06-03 1983-02-23 Method for avoiding the corrosion of the strippers in the urea manufacturing plants
AR292243A AR240839A1 (en) 1982-06-03 1983-02-28 METHOD TO AVOID THE CORROSION OF SEPARATORS IN UREA MANUFACTURING PLANTS.
BR8301109A BR8301109A (en) 1982-06-03 1983-03-07 PROCESS OF PASSIVATING SURFACE OF SEPARATORS OF UREA PRODUCTION FACILITIES
PT76639A PT76639B (en) 1982-06-03 1983-05-04 Method for avoiding the corrosion of the strippers in the urea manufacturing plants
US07/048,458 US4758311A (en) 1982-06-03 1987-05-11 Method for avoiding the corrosion of the strippers in the urea manufacturing plants

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT22962/82A IT1196422B (en) 1982-08-25 1982-08-25 Elimination of urea prodn. plant stripper corrosion

Publications (2)

Publication Number Publication Date
IT8222962A0 IT8222962A0 (en) 1982-08-25
IT1196422B true IT1196422B (en) 1988-11-16

Family

ID=11202346

Family Applications (1)

Application Number Title Priority Date Filing Date
IT22962/82A IT1196422B (en) 1982-06-03 1982-08-25 Elimination of urea prodn. plant stripper corrosion

Country Status (1)

Country Link
IT (1) IT1196422B (en)

Also Published As

Publication number Publication date
IT8222962A0 (en) 1982-08-25

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