GB466910A - Improvements in or relating to the treatment of gases containing organic vapours - Google Patents

Improvements in or relating to the treatment of gases containing organic vapours

Info

Publication number
GB466910A
GB466910A GB4116/36A GB411636A GB466910A GB 466910 A GB466910 A GB 466910A GB 4116/36 A GB4116/36 A GB 4116/36A GB 411636 A GB411636 A GB 411636A GB 466910 A GB466910 A GB 466910A
Authority
GB
United Kingdom
Prior art keywords
ester
solvent
vapours
passes
phosphoric
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
GB4116/36A
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.)
Celluloid Corp
Original Assignee
Celluloid Corp
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 Celluloid Corp filed Critical Celluloid Corp
Publication of GB466910A publication Critical patent/GB466910A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/1493—Selection of liquid materials for use as absorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
    • B01D2252/20—Organic absorbents
    • B01D2252/205—Other organic compounds not covered by B01D2252/00 - B01D2252/20494
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/704—Solvents not covered by groups B01D2257/702 - B01D2257/7027

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Gas Separation By Absorption (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

<PICT:0466910/III/1> Solvent vapours are recovered from gases by absorbing them in an alkyl ester of phosphoric acid or alternatively, in phosphoric p acid esterified by at least one aliphatic alcohol radical and at least one phenol radical. For example, dibutyl phenyl phosphate, phosphoric acid esters of glycol ethers, or trimethyl, triethyl, or tripropyl phosphate may be used. If the esters used are solid at normal temperatures they may be dissolved in diethyl phthalate, dibutyl tartrate, triacetin, or ortho- or metatoluene ethyl sulphonamide. In the apparatus shown, fabric treated with solutions in a chamber 1 is dried by air circulation in chamber 4. The air and solvent vapour then passes through pipe 8 to a tower 12 wherein the solvent vapours are absorbed in the phosphoric ester. The ester then passes through a heat exchanger 21 to a still 23 in which the solvent is driven off. The ester then passes through exchanger 21, a cooler 26, and a reservoir 16 back to the tower 12. If a mixture of solvents is employed, a fractionating column 29 is provided to separate the vapours into two fractions which are condensed and collected in tanks 32 and 37.
GB4116/36A 1935-02-11 1936-02-11 Improvements in or relating to the treatment of gases containing organic vapours Expired GB466910A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US466910XA 1935-02-11 1935-02-11

Publications (1)

Publication Number Publication Date
GB466910A true GB466910A (en) 1937-06-08

Family

ID=21944850

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4116/36A Expired GB466910A (en) 1935-02-11 1936-02-11 Improvements in or relating to the treatment of gases containing organic vapours

Country Status (1)

Country Link
GB (1) GB466910A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2667234A (en) * 1950-02-25 1954-01-26 Koppers Co Inc Acetylene separation process
US5520722A (en) * 1995-01-18 1996-05-28 Exxon Research And Engineering Company Multiunsaturates removal process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2667234A (en) * 1950-02-25 1954-01-26 Koppers Co Inc Acetylene separation process
US5520722A (en) * 1995-01-18 1996-05-28 Exxon Research And Engineering Company Multiunsaturates removal process

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