CN112237923A - 一种生产七氟丙烷用催化剂的制备方法 - Google Patents
一种生产七氟丙烷用催化剂的制备方法 Download PDFInfo
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- 239000003054 catalyst Substances 0.000 title claims abstract description 29
- UKACHOXRXFQJFN-UHFFFAOYSA-N heptafluoropropane Chemical compound FC(F)C(F)(F)C(F)(F)F UKACHOXRXFQJFN-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000002156 mixing Methods 0.000 claims abstract description 18
- 150000003839 salts Chemical class 0.000 claims abstract description 16
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical class [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910021626 Tin(II) chloride Inorganic materials 0.000 claims abstract description 12
- IRPGOXJVTQTAAN-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanal Chemical compound FC(F)(F)C(F)(F)C=O IRPGOXJVTQTAAN-UHFFFAOYSA-N 0.000 claims abstract description 11
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminum fluoride Inorganic materials F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 claims abstract description 11
- 150000001868 cobalt Chemical class 0.000 claims abstract description 11
- 150000001879 copper Chemical class 0.000 claims abstract description 11
- 150000002696 manganese Chemical class 0.000 claims abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 11
- 239000002245 particle Substances 0.000 claims abstract description 7
- 239000007864 aqueous solution Substances 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims abstract description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- 150000002505 iron Chemical class 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 235000013162 Cocos nucifera Nutrition 0.000 claims description 5
- 244000060011 Cocos nucifera Species 0.000 claims description 5
- 235000009827 Prunus armeniaca Nutrition 0.000 claims description 5
- 244000018633 Prunus armeniaca Species 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 230000035484 reaction time Effects 0.000 abstract description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- YFMFNYKEUDLDTL-UHFFFAOYSA-N 1,1,1,2,3,3,3-heptafluoropropane Chemical compound FC(F)(F)C(F)C(F)(F)F YFMFNYKEUDLDTL-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/889—Manganese, technetium or rhenium
- B01J23/8892—Manganese
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/06—Halogens; Compounds thereof
- B01J27/135—Halogens; Compounds thereof with titanium, zirconium, hafnium, germanium, tin or lead
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/07—Preparation of halogenated hydrocarbons by addition of hydrogen halides
- C07C17/087—Preparation of halogenated hydrocarbons by addition of hydrogen halides to unsaturated halogenated hydrocarbons
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
本发明公开一种生产七氟丙烷用催化剂的制备方法。将锡盐、铁盐、铜盐、钴盐和锰盐混合得到混合盐后配制成水溶液，加入氟化铝粉末搅拌混合，再加入活性炭充分混合、混炼后，采用挤出机挤出，制成直径为2mm、3mm、5mm或7mm的颗粒。本发明催化剂转化率高、选择性好(只有HFC227ea的产品，绝对不会产生HFC227ca的产物)、反应时间短、产量高。
Description
技术领域
本发明涉及一种生产七氟丙烷用催化剂的制备方法，属于催化剂技术领域。
背景技术
七氟丙烷是一种以化学灭火为主兼有物理灭火作用的洁净气体化学灭火剂；它无色、无味、低毒、不导电、不污染被保护对象，不会对财物和精密设施造成损坏，能以较低的灭火浓度，可靠的扑灭B、C类火灾及电气火灾；储存空间小，临界温度高，临界压力低，在常温下可液化储存；释放后不含粒子或油状残余物，对大气臭氧层无破坏作用(ODP值为零)，在大气层停留时间为31～42年，符合环保要求。
七氟丙烷灭火剂具有良好的清洁性—-在大气中完全汽化不留残渣、良好的气相电绝缘性，适用于以全淹没灭火方式扑救电气火灾、液体火灾或可熔固体火灾、固体表面火灾、灭火前能切断气源的气体火灾，保护计算机房、通讯机房、变配电室、精密仪器室、发电机房、油库、化学易燃品库房及图书库、资料库、档案库、金库等场所。七氟丙烷灭火系统结构合理、动作可靠，已广泛应用于电子计算机房、档案馆、程控交换机房、电视广播中心及金融机构、政府机关等重要场所。
但是目前采用的生产七氟丙烷用的催化剂以铬、镍为主，转化率低，选择性差，除了有HFC227ea的产品，还有HFC227ca，反应时间长。
发明内容
有鉴于此，本发明提供了一种生产七氟丙烷用催化剂的制备方法，催化剂转化率高、选择性好(只有HFC227ea的产品，绝对不会产生HFC227ca的产物)、反应时间短、产量高。
本发明通过以下技术手段解决上述技术问题：
本发明的一种生产七氟丙烷用催化剂的制备方法，将锡盐、铁盐、铜盐、钴盐和锰盐混合得到混合盐后配制成水溶液，加入氟化铝粉末搅拌混合，再加入活性炭充分混合、混炼后，采用挤出机挤出，制成直径为2mm、3mm、5mm或7mm的颗粒，然后经过烘干即得。
所述活性炭的制备方法为，以杏壳或椰子壳为原料，经过预处理即得。
所述锡盐、铁盐、铜盐、钴盐和锰盐的摩尔比为70-80:5-10:5-10:1-5:5-10。
所述混合盐、氟化铝粉末和活性炭的质量比为5-10:0.5-1:40-50。
这样制备的催化剂，寿命长，可以放6-8个月；
该催化剂对七氟丙烷合成中的原料六氟丙烯，不会发生团聚、结焦现象，从而避免管道反应器被堵，与氢氟酸加成反应，选择性好。
本发明即通过特定的工艺技术方案，通过特定的配方，以锡盐为主的催化剂，相比较常规的催化剂(即以铬、镍为主)，具有选择性好、转化率高等优点。
本发明的有益效果：催化剂转化率高、选择性好(只有HFC227ea的产品，绝对不会产生HFC227ca的产物)、反应时间短、产量高。
具体实施方式
以下将结合具体实施例对本发明进行详细说明，本实施例的一种生产七氟丙烷用催化剂的制备方法，将锡盐、铁盐、铜盐、钴盐和锰盐混合得到混合盐后配制成水溶液，加入氟化铝粉末搅拌混合，再加入活性炭充分混合、混炼后，采用挤出机挤出，制成直径为2mm、3mm、5mm或7mm的颗粒，然后经过烘干即得。
所述活性炭的制备方法为，以杏壳或椰子壳为原料，经过预处理即得。
所述锡盐、铁盐、铜盐、钴盐和锰盐的摩尔比为70-80:5-10:5-10:1-5:5-10。
所述混合盐、氟化铝粉末和活性炭的质量比为5-10:0.5-1:40-50。
实施例1
一种生产七氟丙烷用催化剂的制备方法，将锡盐、铁盐、铜盐、钴盐和锰盐混合得到混合盐后配制成水溶液，加入氟化铝粉末搅拌混合，再加入活性炭充分混合、混炼后，采用挤出机挤出，制成直径为2mm的颗粒，然后经过烘干即得。
所述活性炭的制备方法为，以杏壳或椰子壳为原料，经过预处理即得。
所述锡盐、铁盐、铜盐、钴盐和锰盐的摩尔比为75:8:10:2:9。
所述混合盐、氟化铝粉末和活性炭的质量比为8:0.8:45。
实施例2
一种生产七氟丙烷用催化剂的制备方法，将锡盐、铁盐、铜盐、钴盐和锰盐混合得到混合盐后配制成水溶液，加入氟化铝粉末搅拌混合，再加入活性炭充分混合、混炼后，采用挤出机挤出，制成直径为7mm的颗粒，然后经过烘干即得。
所述活性炭的制备方法为，以杏壳或椰子壳为原料，经过预处理即得。
所述锡盐、铁盐、铜盐、钴盐和锰盐的摩尔比为77:8:8:3:8。
所述混合盐、氟化铝粉末和活性炭的质量比为8:1:45。
最后说明的是，以上实施例仅用以说明本发明的技术方案而非限制，尽管参照较佳实施例对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的宗旨和范围，其均应涵盖在本发明的权利要求范围当中。
Claims (4)
1.一种生产七氟丙烷用催化剂的制备方法，其特征在于，将锡盐、铁盐、铜盐、钴盐和锰盐混合得到混合盐后配制成水溶液，加入氟化铝粉末搅拌混合，再加入活性炭充分混合、混炼后，采用挤出机挤出，制成直径为2mm、3mm、5mm或7mm的颗粒，然后经过烘干即得。
2.根据权利要求1所述的一种生产七氟丙烷用催化剂的制备方法，其特征在于：所述活性炭的制备方法为，以杏壳或椰子壳为原料，经过预处理即得。
3.根据权利要求1所述的一种生产七氟丙烷用催化剂的制备方法，其特征在于：所述锡盐、铁盐、铜盐、钴盐和锰盐的摩尔比为70-80:5-10:5-10:1-5:5-10。
4.根据权利要求1所述的一种生产七氟丙烷用催化剂的制备方法，其特征在于：所述混合盐、氟化铝粉末和活性炭的质量比为5-10:0.5-1:40-50。
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|---|---|---|---|---|
| US5780691A (en) * | 1996-12-23 | 1998-07-14 | Allied Signal Inc. | Process for producing 1,1,1,2,3,3,3,-heptafluoroprane |
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| JP2007038216A (ja) * | 2005-07-07 | 2007-02-15 | National Institute Of Advanced Industrial & Technology | フッ素化触媒とその製造方法及びそれら触媒を用いたフッ素化合物の製造方法 |
| CN102491871A (zh) * | 2011-12-12 | 2012-06-13 | 南京信息工程大学 | 一种七氟丙烷的制备方法 |
| CN102989496A (zh) * | 2012-12-17 | 2013-03-27 | 南京信息工程大学 | 用于制备1,1,1,2,3,3,3-七氟丙烷的催化剂及其制备方法和应用 |
| CN108479749A (zh) * | 2018-01-30 | 2018-09-04 | 昆明理工大学 | 一种金属离子掺杂钒酸盐纳米催化剂的合成方法 |
| CN109513438A (zh) * | 2018-11-21 | 2019-03-26 | 南京工业大学 | 一种环境友好型高温脱硝催化剂及其制备方法 |
-
2019
- 2019-07-16 CN CN201910644600.4A patent/CN112237923A/zh active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US5780691A (en) * | 1996-12-23 | 1998-07-14 | Allied Signal Inc. | Process for producing 1,1,1,2,3,3,3,-heptafluoroprane |
| WO1998050327A1 (en) * | 1997-05-08 | 1998-11-12 | Imperial Chemical Industries Plc | A process for the production of a hydrofluorocarbon and use of a catalyst therefor |
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