ES407977A1 - Continuous prephosgenation process for the production of organic isocyanates - Google Patents
Continuous prephosgenation process for the production of organic isocyanatesInfo
- Publication number
- ES407977A1 ES407977A1 ES407977A ES407977A ES407977A1 ES 407977 A1 ES407977 A1 ES 407977A1 ES 407977 A ES407977 A ES 407977A ES 407977 A ES407977 A ES 407977A ES 407977 A1 ES407977 A1 ES 407977A1
- Authority
- ES
- Spain
- Prior art keywords
- solution
- centrifugal pump
- continuous
- phosgene
- prephosgenation
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 title abstract 2
- 239000012948 isocyanate Substances 0.000 title 1
- 150000002513 isocyanates Chemical class 0.000 title 1
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 abstract 3
- 150000001412 amines Chemical class 0.000 abstract 2
- 239000012442 inert solvent Substances 0.000 abstract 2
- 238000001816 cooling Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229920000768 polyamine Polymers 0.000 abstract 1
- 150000003141 primary amines Chemical class 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C263/00—Preparation of derivatives of isocyanic acid
- C07C263/10—Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
- B01J19/1806—Stationary reactors having moving elements inside resulting in a turbulent flow of the reactants, such as in centrifugal-type reactors, or having a high Reynolds-number
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
- B01J2219/00094—Jackets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/18—Details relating to the spatial orientation of the reactor
- B01J2219/182—Details relating to the spatial orientation of the reactor horizontal
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Process for the continuous prefostering of organic primary amines, by reaction of a solution of phosgene in an inert solvent with a solution of an organic polyamine in an inert solvent; characterized in that the phosgene solution, which is in turbulence, and the amine solution are mixed and reacted, without cooling from the outside, in the suction part of the second stage of a multi-stage centrifugal pump, not self-priming, so that the phosgene solution is fed through the suction pipe of the multistage centrifugal pump and the amine solution is fed through a lateral access arranged additionally in the center between the first and the second runner. And the pre-phosgenation mixture thus obtained is driven by the multi-stage centrifugal pump to a hot phosgenation step provided below. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712153268 DE2153268C3 (en) | 1971-10-26 | Continuous pre-phosgenation process for the production of organic isocyanates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES407977A1 true ES407977A1 (en) | 1975-10-01 |
Family
ID=5823418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES407977A Expired ES407977A1 (en) | 1971-10-26 | 1972-10-25 | Continuous prephosgenation process for the production of organic isocyanates |
Country Status (8)
| Country | Link |
|---|---|
| BE (1) | BE790516A (en) |
| BR (1) | BR7207434D0 (en) |
| ES (1) | ES407977A1 (en) |
| FR (1) | FR2159002A5 (en) |
| GB (1) | GB1400514A (en) |
| IT (1) | IT980970B (en) |
| NL (1) | NL166465C (en) |
| ZA (1) | ZA727590B (en) |
-
1972
- 1972-10-23 NL NL7214341.A patent/NL166465C/en not_active IP Right Cessation
- 1972-10-24 BR BR7434/72A patent/BR7207434D0/en unknown
- 1972-10-24 IT IT30869/72A patent/IT980970B/en active
- 1972-10-25 BE BE790516A patent/BE790516A/en not_active IP Right Cessation
- 1972-10-25 ZA ZA727590A patent/ZA727590B/xx unknown
- 1972-10-25 ES ES407977A patent/ES407977A1/en not_active Expired
- 1972-10-26 FR FR7238063A patent/FR2159002A5/fr not_active Expired
- 1972-10-26 GB GB4947972A patent/GB1400514A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2153268B2 (en) | 1975-08-14 |
| NL166465B (en) | 1981-03-16 |
| FR2159002A5 (en) | 1973-06-15 |
| AU4800672A (en) | 1974-04-26 |
| BR7207434D0 (en) | 1973-10-09 |
| BE790516A (en) | 1973-04-25 |
| DE2153268A1 (en) | 1973-05-03 |
| NL7214341A (en) | 1973-05-01 |
| IT980970B (en) | 1974-10-10 |
| ZA727590B (en) | 1973-06-27 |
| NL166465C (en) | 1981-08-17 |
| GB1400514A (en) | 1975-07-16 |
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