GB538060A - Improved method of recovering calcium lactate and lactic acid from fermented mashes - Google Patents

Improved method of recovering calcium lactate and lactic acid from fermented mashes

Info

Publication number
GB538060A
GB538060A GB875/40A GB87540A GB538060A GB 538060 A GB538060 A GB 538060A GB 875/40 A GB875/40 A GB 875/40A GB 87540 A GB87540 A GB 87540A GB 538060 A GB538060 A GB 538060A
Authority
GB
United Kingdom
Prior art keywords
alcohol
per cent
lactic acid
lactate
purified
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
GB875/40A
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 GB538060A publication Critical patent/GB538060A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P7/00—Preparation of oxygen-containing organic compounds
    • C12P7/40—Preparation of oxygen-containing organic compounds containing a carboxyl group including Peroxycarboxylic acids
    • C12P7/56—Lactic acid
    • 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
    • C07C51/48—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment

Abstract

538,060. Lactates ; lactic acid. MULLER, J. Jan. 15, 1940, No. 875. Convention date, Jan. 20, 1939. [Class 2 (iii)] Alkaline earth lactates are purified by dissolving in boiling strong ethyl, propyl or isopropyl alcohol, filtering and cooling to effect crystallization. The alcohol preferably contains 15-5 per cent. of water. The solution may be agitated while cooling to control the size of the crystals. When the lactate is produced by the fermentation of a mash in the presence of, for instance, calcium carbonate, alcohol of 95 per cent. (which may contain a denaturant such as 15 per cent. of acetone) is added to precipitate the lactate which is then purified by dissolving in boiling alcohol and crystallizing one or more times. Alternatively, the mash may be concentrated before treatment with the alcohol, or it may be evaporated to dryness and boiled with alcohol preferably of 80 per cent. strength with agitation, the solution being filtered and cooled for crystallization, further crystallizations being effected as before for purification. Lactic acid may be prepared from the purified lactate or from the alcoholic solution before crystallization, for instance by treatment with sulphuric acid. The Specification as open to inspection under Sect. 91 is not limited to the use of the alcohols specified, and mentions methyl alcohol as suitable. This subject-matter does not appear in the Specification as accepted.
GB875/40A 1939-01-20 1940-01-15 Improved method of recovering calcium lactate and lactic acid from fermented mashes Expired GB538060A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US538060XA 1939-01-20 1939-01-20

Publications (1)

Publication Number Publication Date
GB538060A true GB538060A (en) 1941-07-18

Family

ID=21986667

Family Applications (1)

Application Number Title Priority Date Filing Date
GB875/40A Expired GB538060A (en) 1939-01-20 1940-01-15 Improved method of recovering calcium lactate and lactic acid from fermented mashes

Country Status (1)

Country Link
GB (1) GB538060A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2710880A (en) * 1953-05-07 1955-06-14 Edward M Filachione Extraction of lactic acid
EP0614983A2 (en) * 1993-03-02 1994-09-14 MUSASHINO CHEMICAL LABORATORY Ltd. Method for the production of lactic acid and lactic esters
CN114145387A (en) * 2021-12-30 2022-03-08 河南金丹乳酸科技股份有限公司 Thallus residue drying process in lactic acid production

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2710880A (en) * 1953-05-07 1955-06-14 Edward M Filachione Extraction of lactic acid
EP0614983A2 (en) * 1993-03-02 1994-09-14 MUSASHINO CHEMICAL LABORATORY Ltd. Method for the production of lactic acid and lactic esters
EP0614983A3 (en) * 1993-03-02 1996-03-20 Musashino Kagaku Kenkyusho Method for the production of lactic acid and lactic esters.
CN114145387A (en) * 2021-12-30 2022-03-08 河南金丹乳酸科技股份有限公司 Thallus residue drying process in lactic acid production
CN114145387B (en) * 2021-12-30 2023-02-17 河南金丹乳酸科技股份有限公司 Thallus residue drying process in lactic acid production

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