TW338007B - Method and apparatus for recovering carboxylic acis from dilute solutions - Google Patents

Method and apparatus for recovering carboxylic acis from dilute solutions

Info

Publication number
TW338007B
TW338007B TW083109156A TW83109156A TW338007B TW 338007 B TW338007 B TW 338007B TW 083109156 A TW083109156 A TW 083109156A TW 83109156 A TW83109156 A TW 83109156A TW 338007 B TW338007 B TW 338007B
Authority
TW
Taiwan
Prior art keywords
acid
acids
retentate
dilute solutions
recovery
Prior art date
Application number
TW083109156A
Other languages
Chinese (zh)
Inventor
Randa Wytcherley
Joseph C Gentry
Romald G Gualy
Original Assignee
Glitsch
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
Priority claimed from US08/224,601 external-priority patent/US5492625A/en
Application filed by Glitsch filed Critical Glitsch
Application granted granted Critical
Publication of TW338007B publication Critical patent/TW338007B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/04—Solvent extraction of solutions which are liquid
    • B01D11/0492—Applications, solvents used
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/025—Reverse osmosis; Hyperfiltration
    • B01D61/026—Reverse osmosis; Hyperfiltration comprising multiple reverse osmosis steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/027—Nanofiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/04—Feed pretreatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2311/00—Details relating to membrane separation process operations and control
    • B01D2311/04—Specific process operations in the feed stream; Feed pretreatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nanotechnology (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A method of recovery of carboxylic acids from a dilute aqueous solution thereof with a concentration below about 10% by weight, selected the carboxylic acid from acids and the mixture of carbon numbering from 1 to 7 in the following steps: passing the dilute acid solution through a reverse osmosis separator, producing a permeate substantially free of acid and a retentate having an acid concentration above 10% by weight; processing the retentate in a step of separation of acids by having liquid extractor for acids in contact with the retentate for production of an acid-rich extractate and an acid-free raffinate for the recovery of the acid from the acid-rich extractate.
TW083109156A 1994-04-07 1995-04-17 Method and apparatus for recovering carboxylic acis from dilute solutions TW338007B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/224,601 US5492625A (en) 1994-04-07 1994-04-07 Method of recovering carboxylic acids from dilute solutions

Publications (1)

Publication Number Publication Date
TW338007B true TW338007B (en) 1998-08-11

Family

ID=48451001

Family Applications (1)

Application Number Title Priority Date Filing Date
TW083109156A TW338007B (en) 1994-04-07 1995-04-17 Method and apparatus for recovering carboxylic acis from dilute solutions

Country Status (3)

Country Link
KR (1) KR950014052A (en)
RU (1) RU95105337A (en)
TW (1) TW338007B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2987830B1 (en) * 2012-03-06 2014-12-12 Ocp Sa PROCESS FOR THE PURIFICATION OF PHOSPHORIC ACID BY NANOFILTRATION

Also Published As

Publication number Publication date
KR950014052A (en) 1995-06-15
RU95105337A (en) 1996-12-27

Similar Documents

Publication Publication Date Title
EP0652203B1 (en) Method and apparatus for recovering carboxylic acids from dilute solutions
MY113939A (en) Method to produce cyclic esters.
EP0151470A3 (en) Process for the recovery of citric acid
GB1468981A (en) Method of removing and recovering water and aromatic hydro carbons from a gas stream
CN109384666B (en) Method for recovering organic acid in organic acid aqueous solution in linkage manner
CZ235194A3 (en) Process for obtaining carboxylic acids from diluted solution thereof and apparatus for making the same
YU139780A (en) Process for the purification of iso -delta-acids
JPS57185241A (en) Separating and purifying method of amino acid
TW338007B (en) Method and apparatus for recovering carboxylic acis from dilute solutions
US6214190B1 (en) Method for separating a catalyst by membrane electrodialysis
CA2138113A1 (en) Recovery of carboxylic acids from their salts
ATE15043T1 (en) PROCESS FOR RECOVERING CAFFEINE FROM ACTIVATED CHARCOAL.
JPS5665841A (en) Purification of lactic acid
AU3823195A (en) Process for recovering citric acid
SU1109369A1 (en) Process for purifying hexane from lower carboxylic acids
EP0299434A3 (en) High ph recovery of neutral amino acids
JPS5791799A (en) Method and apparatus for treating waste water containing acetic acid
ATE96287T1 (en) PROCESS FOR THE SEPARATION AND RECOVERY OF THE ESSENTIAL INGREDIENTS OF FRUIT AND VEGETABLE JUICES.
ATE46761T1 (en) PROCESS FOR RECOVERING A KRYPTON-XENON CONCENTRATE FROM A LIQUID MIXTURE.
Stana et al. Recovery of Uranium by a Reverse Osmosis Process
JPS5753443A (en) Recovery of acrylamide from mixed solution of acrylic acid and acrylamide
ES2072246T1 (en) PROCEDURE FOR THE TREATMENT OF A RESIDUAL LIQUID PRODUCED IN THE FOOD INDUSTRY.
JPS61280450A (en) Device for purifying and recovering acetic ester
TH17537B (en) Amino acid recovery
ATE100501T1 (en) PROCESS FOR THE SEPARATION OF NITROUS PENTOXIDE FROM ITS SOLUTION IN NITRIC ACID.