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1. WO1996004203 - METHOD FOR PRODUCING CARO'S ACID

Publication Number WO/1996/004203
Publication Date 15.02.1996
International Application No. PCT/US1995/009751
International Filing Date 01.08.1995
Chapter 2 Demand Filed 30.01.1996
IPC
B01J 19/24 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
19Chemical, physical or physico-chemical processes in general; Their relevant apparatus
24Stationary reactors without moving elements inside
C01B 15/06 2006.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
15Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
055Peroxyhydrates; Peroxyacids or salts thereof
06containing sulfur
CPC
B01J 14/00
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
14Chemical processes in general for reacting liquids with liquids; Apparatus specially adapted therefor
B01J 19/2415
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
19Chemical, physical or physico-chemical processes in general; Their relevant apparatus
24Stationary reactors without moving elements inside
2415Tubular reactors
B01J 2219/00065
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
2219Chemical, physical or physico-chemical processes in general; Their relevant apparatus
00049Controlling or regulating processes
00051Controlling the temperature
00054Controlling or regulating the heat exchange system
00056involving measured parameters
00065Pressure measurement
B01J 2219/00162
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
2219Chemical, physical or physico-chemical processes in general; Their relevant apparatus
00049Controlling or regulating processes
00162controlling the pressure
C01B 15/06
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
15Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
055Peroxyhydrates
06containing sulfur
Applicants
  • FMC CORPORATION [US/US]; 1735 Market Street Philadelphia, PA 19103, US
Inventors
  • MANGANARO, James, L.; US
  • SACKS, Martin, E.; US
  • CARMICHAEL, James; US
Agents
  • FELLOWS, Charles, C.; FMC Corporation 1735 Market Street Philadelphia, PA 19103, US
Priority Data
283,34801.08.1994US
351,98708.12.1994US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD FOR PRODUCING CARO'S ACID
(FR) PROCEDE POUR LA PRODUCTION D'ACIDE DE CARO
Abstract
(EN)
A process for producing Caro's acid by reaction of at least 85 % by weight sulfuric acid and at least 50 % by weight hydrogen peroxide wherein the sulfuric acid (9) and hydrogen peroxide (1) are fed through separate feed lines (11 and 3), respectively, into a funneling zone (17) open to the atmosphere, the feed lines (11) and (3) having air gaps between their ends and the funneling zone (17); passing the hydrogen peroxide (1) and sulfuric acid (9) by gravity flow from the funneling zone (17) into one end of a reaction zone (22) whose size permits a pressure drop which is at least 8 times the theoretical pressure drop for such reaction zone (22) and removing a mixture containing Caro's acid (28) from the exit end (26) of the reaction zone (22).
(FR)
Cette invention se rapporte à un procédé pour la production d'acide de Caro, par réaction d'au moins 85 % en poids d'acide sulfurique et d'au moins 50 % en poids de peroxyde d'hydrogène. Dans ce procédé, l'acide sulfurique (9) et le peroxyde d'hydrogène (1) sont acheminés par des conduits d'alimentation séparés (11 et 3) respectivement, jusqu'à une zone en entonnoir (17) débouchant à l'air libre, ces conduits d'alimentation (11 et 3) présentant des espaces libres entre leurs extrémités et la zone en entonnoir (17); le peroxyde d'hydrogène (1) et l'acide sulfurique (9) sont amenés à passer par gravité de la zone en entonnoir (17) jusqu'à une extrémité d'une zone de réaction (22) dont la taille permet une chute de pression qui est au moins 8 fois plus grande que la chute de pression théorique pour cette zone de réaction (22), un mélange contenant de l'acide de Caro (28) étant alors extrait de l'extrémité de sortie (26) de cette zone de réaction (22).
Also published as
Latest bibliographic data on file with the International Bureau