GB1121366A - A method and apparatus for effecting an exothermic reaction in a continuous manner - Google Patents

A method and apparatus for effecting an exothermic reaction in a continuous manner

Info

Publication number
GB1121366A
GB1121366A GB4111765A GB4111765A GB1121366A GB 1121366 A GB1121366 A GB 1121366A GB 4111765 A GB4111765 A GB 4111765A GB 4111765 A GB4111765 A GB 4111765A GB 1121366 A GB1121366 A GB 1121366A
Authority
GB
United Kingdom
Prior art keywords
reactors
valves
fed
reactor
lines
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
Application number
GB4111765A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1121366A publication Critical patent/GB1121366A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B01J19/0006—Controlling or regulating processes
    • 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
    • B01J19/24—Stationary reactors without moving elements inside
    • B01J19/245—Stationary reactors without moving elements inside placed in series
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
    • C07B45/00—Formation or introduction of functional groups containing sulfur
    • C07B45/02—Formation or introduction of functional groups containing sulfur of sulfo or sulfonyldioxy groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
    • C07C303/02—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof
    • C07C303/04—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof by substitution of hydrogen atoms by sulfo or halosulfonyl groups
    • C07C303/06—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof by substitution of hydrogen atoms by sulfo or halosulfonyl groups by reaction with sulfuric acid or sulfur trioxide
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
    • C07C303/24—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of esters of sulfuric acids
    • 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
    • B01J2219/00159—Controlling the temperature controlling multiple zones along the direction of flow, e.g. pre-heating and after-cooling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

A process for carrying out continuous exothermic reactions between liquid phase and gaseous phase reagents, e.g. the sulphonation of dodecylbenzene or higher alcohols with SO3 diluted with SO2 and air, comprises passing a liquid reagent through a plurality of reactors in series, to which a diluted gaseous reagent is fed in parallel. The concentration of sulphur trioxide may vary from 15% in the first reactor to 2% in the last, and is preferably at least 7% in the first reactor and not more than 10% in the last reactor. In Fig. 1 (not shown), the gas mixture is fed from line 10 to reactors 1, 2, 3 and 4 through valves 11, 12, 13 and 14. Further diluting gas is added by lines 21, 22 and 23 downstream of the valves which are so adjusted that the proportions of the total quantity of SO3 reaching the reactors are 40%, 30%, 20% and 10% respectively of the total theoretical amount of SO3 necessary to effect complete sulphonation. In Fig. 2 (not shown), diluting gas from lines 211, 221 and 231 is fed into line 10 upstream of the exits to valves 12, 13 and 14, so that the dilution of the gas mixture is cumulative. Reference has been directed by the Comptroller to Specification 988,689.ALSO:A process for carrying out continuous exothermic reactions between liquid phase and gaseous phase reagents e.g. the sulphonation of dodecylbenzene or higher alcohols with SO3 diluted with SO2 and air, comprises passing a liquid reagent through a plurality of reactors in series, to which a diluted gaseous reagent is fed in parallel. The concentration of sulphur trioxide may vary from 15% in the first reactor to 2% in the last, and is preferably at least 7% in the first reactor and not more than 10% in the last reactor. In Fig. 1 (not shown), the gas mixture is fed from line 10 to reactors 1, 2, 3 and 4 through valves 11, 12, 13 and 14. Further diluting gas is added by lines 21, 22 and 23 downstream of the valves which are so adjusted that the proportions of the total quantity of SO3 reaching the reactors are 40%, 30%, 20% and 10% respectively of the total theoretical amount of SO3 necessary to effect complete sulphonation. In Fig. 2 (not shown) diluting gas from lines 21\sv, 22\sv and 23\sv is fed into line 10 upstream of the exits to valves 12, 13 and 14, so that the dilution of the gas mixture is cumulative. Reference has been directed by the Comptroller to Specification 988,689.
GB4111765A 1964-10-01 1965-09-28 A method and apparatus for effecting an exothermic reaction in a continuous manner Expired GB1121366A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2124464 1964-10-01

Publications (1)

Publication Number Publication Date
GB1121366A true GB1121366A (en) 1968-07-24

Family

ID=11178933

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4111765A Expired GB1121366A (en) 1964-10-01 1965-09-28 A method and apparatus for effecting an exothermic reaction in a continuous manner

Country Status (3)

Country Link
BE (1) BE670377A (en)
DE (1) DE1442599C3 (en)
GB (1) GB1121366A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112538032A (en) * 2020-12-22 2021-03-23 赞宇科技集团股份有限公司 Production process and production system of dodecylbenzene sulfonic acid

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105377810B (en) * 2013-07-16 2018-10-19 三菱瓦斯化学株式会社 The manufacturing method and reaction unit of α-hydroxyisobutyric acid amide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112538032A (en) * 2020-12-22 2021-03-23 赞宇科技集团股份有限公司 Production process and production system of dodecylbenzene sulfonic acid
CN112538032B (en) * 2020-12-22 2023-12-26 赞宇科技集团股份有限公司 Production process and production system of dodecylbenzene sulfonic acid

Also Published As

Publication number Publication date
DE1442599A1 (en) 1969-01-09
DE1442599C3 (en) 1975-11-27
BE670377A (en) 1966-01-17

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