FIELD: petrochemical process catalysts.
SUBSTANCE: catalyst is prepared by precipitation of zirconium hydroxide by ammonium hydroxide from zyrconyl nitrate solution at constant pH 8.3-8.9, separation of precipitated hydroxide by filtration, drying, promotion with iron nitrate, drying, sulfatation with sulfuric acid, drying of sulfated hydroxide, and calcination at 600-700оС. Constancy of pH in precipitation stage is achieved by gradually and simultaneously adding to precipitation vessel 15% zyrconyl nitrate solution and 12.5% ammonium hydroxide. Catalyst contains zirconium oxide promoted with 0.7-1.5% iron cations and 3.0-9.7% of sulfate anions.
EFFECT: increased activity of catalyst and yield of isobutene, and eliminated washing of zirconium hydroxide to remove anions.
3 cl, 1 tbl, 12 ex
| Title | Year | Author | Number |
|---|---|---|---|
| CATALYST FOR ISOMERISATION OF N-BUTANE IN ISOBUTANE, A METHOD FOR PREPARING IT AND A PROCESS FOR PRODUCING ISOBUTANE USING SAID CATALYST | 2018 |
|
RU2693464C1 |
| CATALYST, METHOD FOR PREPARATION THEREOF, AND A METHOD OF ISOMERIZATION OF N-BUTANE USING THIS CATALYST | 2004 |
|
RU2264255C1 |
| CATALYST FOR ISOMERISATION OF PARAFFIN HYDROCARBONS AND PREPARATION METHOD THEREOF | 2015 |
|
RU2595341C1 |
| CATALYST OF ISOMERIZATION OF LIGHT PETROL FRACTIONS AND METHOD OF ITS PRODUCTION | 2017 |
|
RU2633756C1 |
| OXIDE CATALYST FOR ISOMERISATION OF LIGHT GASOLINE FRACTIONS | 2012 |
|
RU2486005C1 |
| METHOD FOR OBTAINING A SPHERICAL CATALYST AND ISOBUTANE ALKYLATION CATALYST WITH ISOBUTENE | 2017 |
|
RU2671413C1 |
| CATALYST FOR ALKYLATION OF ISO-BUTANE WITH ISO-BUTENE AND METHOD FOR PRODUCING THEREOF | 2015 |
|
RU2612965C1 |
| HIGHLY ACTIVE ISOMERISATION CATALYST AND ISOMERISATION METHOD | 2005 |
|
RU2329099C1 |
| METHOD FOR PREPARING CATALYST AND CATALYST FOR ALKYLATION OF ISOBUTANE WITH ISOBUTENE | 2014 |
|
RU2579512C1 |
| METHOD OF PREPARATION OF CATALYST OF PARAFFIN ISOMERIZATION BASED ON BAYERITE ALUMINIUM OXIDE | 2017 |
|
RU2669199C1 |
