FIELD: industrial organic synthesis.
SUBSTANCE: object of invention is to improve quality of propylene oxide polluted by poly(propylene oxide) and comprises following steps: (i) interaction of propylene oxide with adsorbent powder consisting of magnesium silicate and/or calcium silicate in amount 0.05 to 15% on the weight of liquid propylene oxide to form suspension wherein average particle size if indicated powder ranges from 1 to 100 mcm, or passage of polluted propylene oxide over at least one bed of extrudates of the same adsorbent; and (ii) isolation of purified propylene oxide product.
EFFECT: increased purity of propylene oxide and thereby improved quality of polyurethane foams based thereon.
6 cl, 2 tbl, 5 ex
| Title | Year | Author | Number |
|---|---|---|---|
| AGGLOMERATED ZEOLITE ADSORBENTS, METHOD OF MAKING SAID SORBENTS AND USE THEREOF | 2008 |
|
RU2453364C2 |
| METHOD OF REMOVING ENDOCRINE SYSTEM-VIOLATING SUBSTANCES | 2008 |
|
RU2446007C2 |
| WATER TREATMENT METHOD | 2008 |
|
RU2482067C2 |
| METHOD OF PURIFYING OLEFINIC FEEDSTOCK USING ADSORBENT COMPRISING ZEOLITE OF 12MR TYPE | 2012 |
|
RU2606115C2 |
| ADSORBENT COMPOSITION AND METHOD OF OBTAINING AND USING IT | 2004 |
|
RU2345835C2 |
| HIGHLY EFFICIENT CARBON ADSORBENTS | 2019 |
|
RU2762278C1 |
| AGGLOMERATED ZEOLITE ADSORBENTS, METHOD OF MAKING SAID SORBENTS AND USE THEREOF | 2008 |
|
RU2451543C2 |
| METHOD FOR MANUFACTURING COMPOSITE ADSORBING LAYER WITH HIGH PACKING DENSITY, ADSORBER CONTAINING IT AND GAS SEPARATION BASED ON ADSORPTION USING ADSORBER | 2020 |
|
RU2799338C1 |
| METHOD FOR HIGH-PRESSURE LIQUEFACTION OF NATURAL GAS WITH PRETREATMENT USING SOLVENT | 2012 |
|
RU2567538C2 |
| CYCLE INTERRUPTION FOR OLEFIN OUTPUT INCREASE | 2004 |
|
RU2343185C2 |
