JP2595657C - - Google Patents
Info
- Publication number
- JP2595657C JP2595657C JP2595657C JP 2595657 C JP2595657 C JP 2595657C JP 2595657 C JP2595657 C JP 2595657C
- Authority
- JP
- Japan
- Prior art keywords
- slurry
- filtrate
- gas
- crystals
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000002002 slurry Substances 0.000 claims description 56
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 50
- 239000000706 filtrate Substances 0.000 claims description 40
- 239000013078 crystal Substances 0.000 claims description 29
- 238000005406 washing Methods 0.000 claims description 23
- 238000000967 suction filtration Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 15
- 238000001556 precipitation Methods 0.000 claims description 7
- 239000007789 gas Substances 0.000 description 33
- 239000007788 liquid Substances 0.000 description 14
- 238000001914 filtration Methods 0.000 description 8
- 238000003860 storage Methods 0.000 description 6
- 239000012452 mother liquor Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Family
ID=
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2595657B2 (ja) | スラリーから結晶を回収する方法 | |
| JP4243912B2 (ja) | スラリーからの結晶回収方法 | |
| JPH06506461A (ja) | 精製テレフタル酸を回収するための改良方法 | |
| CN101903072B (zh) | 结晶浆料的过滤方法 | |
| WO2010119484A1 (ja) | 晶析スラリーからの結晶の回収方法 | |
| JPS603005B2 (ja) | アルミン酸ソ−ダ溶液より析出水酸化アルミニウムを分離する方法 | |
| JP2002370002A (ja) | 多段向流結晶化装置 | |
| JP2595657C (de) | ||
| JPWO2014049793A1 (ja) | 加圧式単室型回転濾過機の運転方法 | |
| JPH11179115A (ja) | スラリーからの結晶回収方法および装置 | |
| KR20100019462A (ko) | 테레프탈산의 회수를 위한 개선된 방법 | |
| CN100509746C (zh) | 一种对苯二甲酸的分离提纯方法 | |
| CN106187751A (zh) | 用于处理对苯二甲酸的方法和装置 | |
| KR970004909B1 (ko) | 슬러리로부터 결정을 회수하기 위한 회전진공필터 | |
| JP3497206B2 (ja) | 濾過機における洗浄方法 | |
| JP3147720B2 (ja) | 下向流濾過装置の洗浄方法 | |
| EP0976761B1 (de) | Isolierung von Kristallen von Alpha-L-aspartyl-L-phenylalaninmethyl ester | |
| JP2005232134A (ja) | ビスフェノールａの製造方法 | |
| JP2557103B2 (ja) | 固液分離方法および固液分離装置 | |
| CN1751770A (zh) | 真空过滤装置的清洗方法及真空过滤装置 | |
| JPH04103544A (ja) | 粗製アントラセンの分離回収方法 | |
| JP2802129B2 (ja) | 固液分離方法 | |
| JPH03208814A (ja) | 硫安晶出工程の安定化方法 | |
| JPH0295401A (ja) | 凍結濃縮装置及び方法 | |
| JP2006056783A (ja) | 炭酸エチレン精製方法、精製装置及び結晶精製用搬送装置 |