GB1075162A - Process of preparing purified lac - Google Patents

Process of preparing purified lac

Info

Publication number
GB1075162A
GB1075162A GB1750965A GB1750965A GB1075162A GB 1075162 A GB1075162 A GB 1075162A GB 1750965 A GB1750965 A GB 1750965A GB 1750965 A GB1750965 A GB 1750965A GB 1075162 A GB1075162 A GB 1075162A
Authority
GB
United Kingdom
Prior art keywords
lac
salt
alkali metal
solid phase
purified lac
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
GB1750965A
Inventor
Marvin Weiss
Sidney Beinfest
Peter James Gregory
Phillip Adams
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.)
Millmaster Onyx Corp
Original Assignee
Millmaster Onyx 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 Millmaster Onyx Corp filed Critical Millmaster Onyx Corp
Priority to GB1750965A priority Critical patent/GB1075162A/en
Publication of GB1075162A publication Critical patent/GB1075162A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09F—NATURAL RESINS; FRENCH POLISH; DRYING-OILS; OIL DRYING AGENTS, i.e. SICCATIVES; TURPENTINE
    • C09F1/00—Obtaining purification, or chemical modification of natural resins, e.g. oleo-resins
    • C09F1/02—Purification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Peptides Or Proteins (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)

Abstract

A process for purifying lac comprises either suspending it in an aqueous alkaline solution which has an alkali metal or ammonium cation concentration such that the resulting lac salt is maintained as a solid phase, or dissolving it in an aqueous, alkaline, alkali metal or ammonium salt or hydroxide solution, and adjusting the alkali metal or ammonium cation concentration so as to precipitate the resulting lac salt as a solid phase, followed in either case by separating the purified lac salt from the residual liquid. The purified lac salt may then be dissolved in water, bleached, precipitated with acid and recovered.
GB1750965A 1965-04-26 1965-04-26 Process of preparing purified lac Expired GB1075162A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1750965A GB1075162A (en) 1965-04-26 1965-04-26 Process of preparing purified lac

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1750965A GB1075162A (en) 1965-04-26 1965-04-26 Process of preparing purified lac

Publications (1)

Publication Number Publication Date
GB1075162A true GB1075162A (en) 1967-07-12

Family

ID=10096447

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1750965A Expired GB1075162A (en) 1965-04-26 1965-04-26 Process of preparing purified lac

Country Status (1)

Country Link
GB (1) GB1075162A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103013338A (en) * 2012-12-12 2013-04-03 中国林业科学研究院资源昆虫研究所 Method for bleaching shellac resin
CN103013339A (en) * 2012-12-12 2013-04-03 中国林业科学研究院资源昆虫研究所 Dewaxing and degreasing method of shellac resin

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103013338A (en) * 2012-12-12 2013-04-03 中国林业科学研究院资源昆虫研究所 Method for bleaching shellac resin
CN103013339A (en) * 2012-12-12 2013-04-03 中国林业科学研究院资源昆虫研究所 Dewaxing and degreasing method of shellac resin
CN103013339B (en) * 2012-12-12 2014-05-07 中国林业科学研究院资源昆虫研究所 Dewaxing and degreasing method of shellac resin
WO2014090129A1 (en) * 2012-12-12 2014-06-19 中国林业科学研究院资源昆虫研究所 Method for bleaching lac resin
CN103013338B (en) * 2012-12-12 2015-03-04 中国林业科学研究院资源昆虫研究所 Method for bleaching shellac resin

Similar Documents

Publication Publication Date Title
ES399314A1 (en) Process for the prevention of precipitations in water or aqueous solutions
GB1075162A (en) Process of preparing purified lac
GB1042460A (en) An improved method of evaporating caustic
SE7409303L (en)
GB579459A (en) Process for the purification of 4-hydroxycoumarins
GB1198782A (en) A Process for the Production of Azo-Diisobutyric Acid Amidine
GB1389499A (en) Extraction of mercury from alkaline brines
GB1122637A (en) Process for the stabilisation of iron oxides containing water of constitution
GB653993A (en) Process of producing silicic acid from alkali silicates
GB1309288A (en) Process for the production of nickelous hydroxide
GB910730A (en) Method of purifying terephthalic acid
IE35922L (en) Recovery of cephalothin salts
GB1182513A (en) Guanosine Derivatives and a process for preparing the same
GB1104281A (en) Treatment of clay minerals
ES434722A1 (en) Process for recovery of cyanuric acid from treated chlorinated mother liquor
GB915486A (en) Recovery of demethylchlortetracycline
GB1073824A (en) Separation of a 4:4-bipyridylium salt from a mixture containing it
SE308902B (en)
GB1121408A (en) Process for reducing the mercury loss in a process for the electrolytic production of alkali hydroxide
GB1438635A (en) Production of anhydrous sodium sulphate
GB987144A (en) Waste liquor treatment
GB1246281A (en) Recovery of zinc
GB1021112A (en) A new salt and a new process for the recovery of kanamycin
GB1030969A (en) Improvements in or relating to the preparation of weak acids from their salts by electrodialysis
GB902754A (en) Process for the separation of rare earths