SU201337A1 - METHOD FOR OBTAINING A NATURAL PHASE JAZITE TYPE - Google Patents
METHOD FOR OBTAINING A NATURAL PHASE JAZITE TYPEInfo
- Publication number
- SU201337A1 SU201337A1 SU873719A SU873719A SU201337A1 SU 201337 A1 SU201337 A1 SU 201337A1 SU 873719 A SU873719 A SU 873719A SU 873719 A SU873719 A SU 873719A SU 201337 A1 SU201337 A1 SU 201337A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- type
- jazite
- obtaining
- natural phase
- natural
- Prior art date
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 239000010457 zeolite Substances 0.000 description 5
- 239000004115 Sodium Silicate Substances 0.000 description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N Sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 4
- 229910052911 sodium silicate Inorganic materials 0.000 description 4
- RMAQACBXLXPBSY-UHFFFAOYSA-N Silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 3
- 239000012452 mother liquor Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- WNROFYMDJYEPJX-UHFFFAOYSA-K Aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000005712 crystallization Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N AI2O3 Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- JLDSOYXADOWAKB-UHFFFAOYSA-N Aluminium nitrate Chemical compound [Al+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O JLDSOYXADOWAKB-UHFFFAOYSA-N 0.000 description 1
- 235000019749 Dry matter Nutrition 0.000 description 1
- 229910020169 SiOa Inorganic materials 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000012013 faujasite Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
Description
Известен способ получени цеолитов типа У (тип фожазита), при котором в качестве одного из основных компонентов примен ют концентрированный и устойчивый во времени гель кремневой кислоты.A known method for the preparation of type Y zeolites (a type of fujazite), in which a silicic acid gel, which is concentrated and stable in time, is used as one of the main components.
Предложенный способ получени цеолита типа природного фожазита заключаетс в том, что вначале получают кремнегель совместным осаждением кислых растворов кремневой кислоты и гидроокиси алюмини . Полученный гель отдел ют от маточного раствора и подвергают кристаллизации в среде силиката натри . Концентраци сухого вещества при этом равна 65-50 г/л в единице объема реакционной смеси.The proposed method for producing a zeolite of the natural faujasite type is that silica is first produced by the combined precipitation of acid solutions of silicic acid and aluminum hydroxide. The resulting gel is separated from the mother liquor and is subjected to crystallization in sodium silicate. The dry matter concentration here is 65-50 g / l per unit volume of the reaction mixture.
Пример. 0,3 л азотной кислоты (498,5 HNOs), 0,2 л раствора азотнокислого алюмини , содержащего в пересчете на AUOs 5 г вещества , и 1,0 л раствора гидроокиси натри (40 г/л NaOH) при интенсивном перемещивании последовательно приливают к 1,0 л раствора силиката натри (60 г/л SiOa, 62 г/л NaaO). рН маточного раствора после осаждени 7,0. Алюмосиликагель отдел ют от маточного раствора, перенос т в стекл нный реактор и приливают 0.3 л раствора силиката натри (140,0 г/л SiOg и 146,0 г/л NaoO). Объем реакционной смеси составл ет 1,3 л, соотнощение компонентов (в мол х):Example. 0.3 l of nitric acid (498.5 HNOs), 0.2 l of aluminum nitrate solution containing, in terms of AUOs, 5 g of substance, and 1.0 l of sodium hydroxide solution (40 g / l of NaOH) are poured in successively during intensive movement to 1.0 l of sodium silicate solution (60 g / l SiOa, 62 g / l NaaO). The pH of the mother liquor after precipitation is 7.0. The silica / alumina was separated from the mother liquor, transferred to a glass reactor, and 0.3 l of sodium silicate solution (140.0 g / l SiOg and 146.0 g / l NaoO) were added. The volume of the reaction mixture is 1.3 liters, the ratio of the components (in moles x):
SiO, „,-. N820 (кп ,SiO, „, -. N820 (kp,
---7- 20; 0.7; Ссух. вещ. 50 г/л--- 7-20; 0.7; A piss off things 50 g / l
AljOaSiOaAljOaSiOa
Кристаллизаци продолжаетс 90 час при 85°С. Промывка цеолита осуществл етс дистиллированной водой до рН 9,5.Crystallization lasts 90 hours at 85 ° C. The zeolite is washed with distilled water to a pH of 9.5.
Химический состав готового продукта 0,9 NaoO. AI.OS. 4,7 SiOo. SHoO.The chemical composition of the finished product is 0.9 NaoO. AI.OS. 4.7 SiOo. Shoo.
Предмет изобретени Subject invention
Способ получени цеолита типа природного фожазита с использованием соединений алюмини и кремни , отличающийс тем, что, с целью получени термоустойчивого и кислотоустойчивого цеолита с повыщенным содержанием кремнезема, совместно осаждают кислые растворы кремневой кислоты и гидроокиси алюмини , полученный гель отдел ют от маточного раствора и подвергают кристаллизации в растворе силиката натри .A method for producing a zeolite of the natural jittery type using aluminum and silicon compounds, characterized in that acidic solutions of silicic acid and aluminum hydroxide are precipitated together to obtain a heat-resistant and acid-resistant zeolite with elevated silica content and crystallize in sodium silicate solution.
Publications (1)
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SU201337A1 true SU201337A1 (en) |
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