GB1189017A - Purifying Crude Methanol - Google Patents

Purifying Crude Methanol

Info

Publication number
GB1189017A
GB1189017A GB3862767A GB3862767A GB1189017A GB 1189017 A GB1189017 A GB 1189017A GB 3862767 A GB3862767 A GB 3862767A GB 3862767 A GB3862767 A GB 3862767A GB 1189017 A GB1189017 A GB 1189017A
Authority
GB
United Kingdom
Prior art keywords
methanol
distillation
crude methanol
stripping
aug
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
GB3862767A
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik AG
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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB1189017A publication Critical patent/GB1189017A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
    • C07C29/88—Separation; Purification; Use of additives, e.g. for stabilisation by treatment giving rise to a chemical modification of at least one compound

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1,189,017. Purification of methanol. BADISCHE ANILIN- & SODA-FABRIK A.G. 22 Aug., 1967 [23 Aug., 1966], No. 38627/67. Heading C2C. Crude methanol is purified by treatment with hydrogen peroxide and alkali after removal of a substantial proportion of the carbon dioxide present in the crude methanol. The CO 2 content is preferably lowered to less than 0À05% by weight, by heating or distillation of the methanol or by stripping with a CO 2 -free gas. Heating or distillation may be carried out at above atmospheric pressure. Stripping may be effected in a column by upward passage of the gas, e.g. nitrogen, hydrogen, carbon monoxide or the expanded gaseous methanol from synthesis of methanol at elevated pressure, through a downward flow of the crude methanol. The purification is effected by oxidizing impurities, especially iron carbonyls, with dilute aqueous hydrogen peroxide and sodium hydroxide in respective concentrations of 0À005-0À05% and 0À01- 0À15% of the weight of methanol. Alkali may then be removed by distillation.
GB3862767A 1966-08-23 1967-08-22 Purifying Crude Methanol Expired GB1189017A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB88584A DE1290122B (en) 1966-08-23 1966-08-23 Process for the purification of raw methanol

Publications (1)

Publication Number Publication Date
GB1189017A true GB1189017A (en) 1970-04-22

Family

ID=6984373

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3862767A Expired GB1189017A (en) 1966-08-23 1967-08-22 Purifying Crude Methanol

Country Status (4)

Country Link
AT (1) AT269820B (en)
BE (1) BE702972A (en)
DE (1) DE1290122B (en)
GB (1) GB1189017A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013144041A1 (en) * 2012-03-28 2013-10-03 Akzo Nobel Chemicals International B.V. Continuous process for the preparation of methanol by hydrogenation of carbon dioxide
CN112321393A (en) * 2020-11-04 2021-02-05 北京化学试剂研究所有限责任公司 Method for purifying chromatographically pure methanol

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013144041A1 (en) * 2012-03-28 2013-10-03 Akzo Nobel Chemicals International B.V. Continuous process for the preparation of methanol by hydrogenation of carbon dioxide
CN112321393A (en) * 2020-11-04 2021-02-05 北京化学试剂研究所有限责任公司 Method for purifying chromatographically pure methanol
CN112321393B (en) * 2020-11-04 2022-08-05 北京化学试剂研究所有限责任公司 Method for purifying chromatographically pure methanol

Also Published As

Publication number Publication date
AT269820B (en) 1969-04-10
BE702972A (en) 1968-02-23
DE1290122B (en) 1969-03-06

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees