JPH0251542B2 - - Google Patents
Info
- Publication number
- JPH0251542B2 JPH0251542B2 JP2034486A JP2034486A JPH0251542B2 JP H0251542 B2 JPH0251542 B2 JP H0251542B2 JP 2034486 A JP2034486 A JP 2034486A JP 2034486 A JP2034486 A JP 2034486A JP H0251542 B2 JPH0251542 B2 JP H0251542B2
- Authority
- JP
- Japan
- Prior art keywords
- filter
- edta
- collected
- liquid
- crystals
- 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
Links
- 239000013078 crystal Substances 0.000 claims description 39
- 239000007788 liquid Substances 0.000 claims description 31
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 25
- 238000002425 crystallisation Methods 0.000 claims description 20
- 230000008025 crystallization Effects 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 16
- 239000002699 waste material Substances 0.000 claims description 10
- 239000011148 porous material Substances 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 4
- 230000001172 regenerating effect Effects 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 3
- 239000011550 stock solution Substances 0.000 description 11
- 239000011734 sodium Substances 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 239000013081 microcrystal Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 238000011001 backwashing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000010979 pH adjustment Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 210000001787 dendrite Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000012086 standard solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Removal Of Specific Substances (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2034486A JPS62178553A (ja) | 1986-02-03 | 1986-02-03 | Ｅｄｔａ含有廃液からのｅｄｔａの回収方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2034486A JPS62178553A (ja) | 1986-02-03 | 1986-02-03 | Ｅｄｔａ含有廃液からのｅｄｔａの回収方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62178553A JPS62178553A (ja) | 1987-08-05 |
| JPH0251542B2 true JPH0251542B2 (https=) | 1990-11-07 |
Family
ID=12024518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2034486A Granted JPS62178553A (ja) | 1986-02-03 | 1986-02-03 | Ｅｄｔａ含有廃液からのｅｄｔａの回収方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62178553A (https=) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4834986B2 (ja) * | 2004-12-10 | 2011-12-14 | 株式会社Ｉｈｉ | 熱電ユニット |
-
1986
- 1986-02-03 JP JP2034486A patent/JPS62178553A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62178553A (ja) | 1987-08-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |