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1,2-Propanediol propylene glycol

Two options are being developed at the moment. The first is to produce 1,2-propanediol (propylene glycol) from glycerol. 1,2-Propanediol has a number of industrial uses, including as a less toxic alternative to ethylene glycol in anti-freeze. Conventionally, 1,2-propanediol is made from a petrochemical feedstock, propylene oxide. The new process uses a combination of a copper-chromite catalyst and reactive distillation. The catalyst operates at a lower temperature and pressure than alternative systems 220°C compared to 260°C and 10 bar compared to 150 bar. The process also produces fewer by-products, and should be cheaper than petrochemical routes at current prices for natural glycerol. The first commercial plant is under construction and the process is being actively licensed to other companies. [Pg.53]

In addition to methanogens and some acetogens, bacteria capable of 1,2-propanediol fermentation have been reported to produce vitamin B12 [286]. The transformation of 1,2-propanediol (propylene glycol) to propionaldehyde requires vitamin B12. Further fermentation of propionaldehyde to n-propanol and propionic acid does not require vitamin B12 but yields energy for growth. [Pg.387]

Propanediols 1,2-Propanediol (propylene glycol) and 1,3-propanediol are important chemicals because of their use for the production of antifreezes and polyesters, respectively. Figure 2.2.10 shows the petrochemical route to both compounds... [Pg.100]

Methyl a-D-glucopyranoside is the only product of commercial promise to have thus far emerged from work with protic solvents it has utility in the preparation of polyurethane foams. Mehltretter and coworkers125,126 have described the application of mixtures of D-glucosides obtained by the acid-catalyzed reaction of ethylene glycol, 1,2-propanediol ( propylene glycol ), or glycerol with starch,... [Pg.101]

C3H60 methyl vinyl ether 107-25-5 -122 00 1 0687 2 2140 C3H802 1,2-propanediol (propylene glycol) 57-55-6 -60.00 1.2784 2... [Pg.211]

Propanediol (propylene glycol) is a nontoxic substitute for ethylene glycol or methoxyethanol (see Figure 4.8). [Pg.88]

Acrylic acid, hydroxypropyl ester Acrylic acid 2-hydroxypropyl ester Acrylic acid, monoester with 1,2-propanediol CCRIS 7746 EINECS 247-118-0 HSDB 596 Hydroxypropyl acrylate 2-Propenoio acid, monoester with 1,2-propanediol Propylene glycol acrylate Propylene glycol monoacrylate. [Pg.331]

Propanediol propylene glycol H3C-CHOH-CH2OH 172a, 1023, 2192, 2896 174a, 174b, 174c, 603, 3370... [Pg.1161]

Due to hydrogen bonding, 1,2-ethanediol (ethylene glycol) and 1,2-propanediol (propylene glycol) are both high-boiling liquids that are completely miscible with water. [Pg.115]

CAS 29059-24-3 EINECS/ELINCS 249-395-3 Synonyms Myristic acid, monoester with 1,2-propanediol Propylene glycol monomyristate Tetradecanoic acid, monoester with 1,2-propanedk)l Definition Ester of propylene glycol and myristic acid Empirical CnHwO,... [Pg.1324]

Synonyms Docosanoic acid, monoester with 1,2-propanediol Propylene glycol monodocosanoate... [Pg.3743]

Formula CioH2i(OCHCH3CH2)x(OCH2CH2)yOH. avg. X = 1, avg. y = 12 Uses Emulsifier in cosmetics Propylene glycol isostearate CAS 68171-38-0 EINECS/ELINCS 269-027-5 Synonyms Isooctadecanoic acid, monoester with 1,2-propanediol Propylene glycol monoisostearate... [Pg.3749]

See other pages where 1,2-Propanediol propylene glycol is mentioned: [Pg.634]    [Pg.460]    [Pg.101]    [Pg.913]    [Pg.915]    [Pg.113]    [Pg.316]    [Pg.418]    [Pg.556]    [Pg.601]    [Pg.693]    [Pg.814]    [Pg.1070]    [Pg.589]    [Pg.1070]    [Pg.527]    [Pg.116]    [Pg.188]    [Pg.1719]    [Pg.589]    [Pg.115]    [Pg.116]    [Pg.1150]    [Pg.90]    [Pg.423]    [Pg.72]    [Pg.368]    [Pg.503]    [Pg.478]    [Pg.479]    [Pg.916]   


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1,3-Propanediol

1.3- Propanediol glycol

Glycols propylene glycol

Propylene glycol

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