Chromium and zinc removal method for ferrous chloride solution
The invention discloses a chromium and zinc removal method for a ferrous chloride solution. The method includes the following steps that A, the pH is adjusted for removing chromium, sodium hydroxide or ammonium hydroxide is dropwise added into the ferrous chloride solution to adjust the pH of the so...
Saved in:
Main Authors | , , , , , , , , |
---|---|
Format | Patent |
Language | Chinese English |
Published |
23.02.2018
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Abstract | The invention discloses a chromium and zinc removal method for a ferrous chloride solution. The method includes the following steps that A, the pH is adjusted for removing chromium, sodium hydroxide or ammonium hydroxide is dropwise added into the ferrous chloride solution to adjust the pH of the solution to be 5-7, and filter pressing is carried out to obtain chromium removing filter liquor withconcentration of Cr3+ not larger than 0.001 g/L; and B, sediment zinc removal is carried out, wherein ferrous sulfide powder with the water content being 30%-70% is added into the chromium removing filter liquor obtained after filter pressing in the step A, the water content is the mass percent, the adding amount of the ferrous sulfide powder is 6-12 times the amount of substance of Zn2+ in the chromium removing filter liquor, the reaction temperature is controlled to be 10 DEG C to 50 DEG C in the overall process, and a zinc removal solution with concentration of Zn2+ not larger than 0.01 g/Lis obtained through filte |
---|---|
AbstractList | The invention discloses a chromium and zinc removal method for a ferrous chloride solution. The method includes the following steps that A, the pH is adjusted for removing chromium, sodium hydroxide or ammonium hydroxide is dropwise added into the ferrous chloride solution to adjust the pH of the solution to be 5-7, and filter pressing is carried out to obtain chromium removing filter liquor withconcentration of Cr3+ not larger than 0.001 g/L; and B, sediment zinc removal is carried out, wherein ferrous sulfide powder with the water content being 30%-70% is added into the chromium removing filter liquor obtained after filter pressing in the step A, the water content is the mass percent, the adding amount of the ferrous sulfide powder is 6-12 times the amount of substance of Zn2+ in the chromium removing filter liquor, the reaction temperature is controlled to be 10 DEG C to 50 DEG C in the overall process, and a zinc removal solution with concentration of Zn2+ not larger than 0.01 g/Lis obtained through filte |
Author | PENG AIPING MA MULIN XIE JUN LI FANGFANG LI LIANGBIN YE MING HU ZHIHUA ZENG XIANQIN JIANG YAOQUAN |
Author_xml | – fullname: ZENG XIANQIN – fullname: YE MING – fullname: JIANG YAOQUAN – fullname: PENG AIPING – fullname: XIE JUN – fullname: MA MULIN – fullname: LI LIANGBIN – fullname: HU ZHIHUA – fullname: LI FANGFANG |
BookMark | eNqNyjsKAjEQANAUWvi7w3gAQXfBdIIExcrKfgnJhASSmWWSWHh6Gw9g9Zq3VgtiwpW6mChcUi9gycMnkQPBwm-boWCL7CGwQEAR7hVczCzJI1TOvSWmrVoGmyvufm7U_n57mccBZ56wztYhYZvM83TUehj1cL6O_5wvg5kynw |
ContentType | Patent |
DBID | EVB |
DatabaseName | esp@cenet |
DatabaseTitleList | |
Database_xml | – sequence: 1 dbid: EVB name: esp@cenet url: http://worldwide.espacenet.com/singleLineSearch?locale=en_EP sourceTypes: Open Access Repository |
DeliveryMethod | fulltext_linktorsrc |
Discipline | Medicine Chemistry Sciences |
DocumentTitleAlternate | 种氯化亚铁溶液除铬和锌的方法 |
ExternalDocumentID | CN107723726A |
GroupedDBID | EVB |
ID | FETCH-epo_espacenet_CN107723726A3 |
IEDL.DBID | EVB |
IngestDate | Fri Jul 19 16:43:08 EDT 2024 |
IsOpenAccess | true |
IsPeerReviewed | false |
IsScholarly | false |
Language | Chinese English |
LinkModel | DirectLink |
MergedId | FETCHMERGED-epo_espacenet_CN107723726A3 |
Notes | Application Number: CN20171846387 |
OpenAccessLink | https://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20180223&DB=EPODOC&CC=CN&NR=107723726A |
ParticipantIDs | epo_espacenet_CN107723726A |
PublicationCentury | 2000 |
PublicationDate | 20180223 |
PublicationDateYYYYMMDD | 2018-02-23 |
PublicationDate_xml | – month: 02 year: 2018 text: 20180223 day: 23 |
PublicationDecade | 2010 |
PublicationYear | 2018 |
RelatedCompanies | JIANGXI GANFENG LITHIUM CO., LTD |
RelatedCompanies_xml | – name: JIANGXI GANFENG LITHIUM CO., LTD |
Score | 3.252508 |
Snippet | The invention discloses a chromium and zinc removal method for a ferrous chloride solution. The method includes the following steps that A, the pH is adjusted... |
SourceID | epo |
SourceType | Open Access Repository |
SubjectTerms | CHEMICAL SURFACE TREATMENT CHEMISTRY CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL INORGANIC CHEMISTRY METALLURGY |
Title | Chromium and zinc removal method for ferrous chloride solution |
URI | https://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20180223&DB=EPODOC&locale=&CC=CN&NR=107723726A |
hasFullText | 1 |
inHoldings | 1 |
isFullTextHit | |
isPrint | |
link | http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwfV3dS8MwED_mFPVNp6LzgwjSt6I0WT8eprh0ZQh2Q6bsbTS3lnXQdnQdwv56k7g5X_QtJHBcwl3uI7nfAdxZSJmTCMv0EBOTeQmarksfTIVcQtlE5fo12mdo997Zy6g1qsFsUwujcUI_NTii1CiU-l7p-3q-TWL5-m_l4l6kcqp4CoZt31hHxwrOzKKG32l3B32_zw3O2zw0wjfVW9WxqGPZzzuwq9xohbPf_eioqpT5b5MSHMHeQFLLq2OoraYNOOCbzmsN2H9dP3jL4Vr3FifwqHBss3SZERn8k1WaIynjrJCSQr7bQBPpf5IkLksZzBOcqq91k5hsZOsUboPukPdMycj4Z9djHm55pmdQz4s8PgeCQkwiG0UUo2ACbVcw1oo81UTaQQ-tC2j-Taf53-IlHKoT1PXa9ArqVbmMr6XFrcSNPqovgkOGHA |
link.rule.ids | 230,309,786,891,25594,76903 |
linkProvider | European Patent Office |
linkToHtml | http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwfV1dT8IwFL1BNOKbokbxqyZmb4tmLft4mEY6CCoMYtDwRujdFjBhkDFiwq-3rSC-6FvTJjdtc2_b0_aeA3BjIWVOIizTQ0xM5iVoui69MxVzCWWRuuvXbJ-h3Xxjz_1qvwAf61wYzRP6qckRZUShjPdcr9ezzSVWoP9Wzm_FWFZNHxo9PzBW6FjRmVnUCGp-vdsJOtzg3OehEb4qbVXHoo5lP27BtiMhoYZK7zWVlTL7vaU09mGnK62l-QEUlqMylPhaea0Mu-3Vg7csrmJvfgj3isd2Ml5MiAT_ZDlOkWTxZCo9hXzLQBN5_iRJnGUSzBMcqa91UUzWvnUE1416jzdN2ZHBz6gHPNz0mR5DMZ2m8QkQFCIa2iiGMQom0HYFY9Whp0SkHfTQOoXK33Yq_zVeQanZa7cGrafw5Qz21Gzq3G16DsU8W8QXcvfNxaWeti_ssYkG |
openUrl | ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fsummon.serialssolutions.com&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Apatent&rft.title=Chromium+and+zinc+removal+method+for+ferrous+chloride+solution&rft.inventor=ZENG+XIANQIN&rft.inventor=YE+MING&rft.inventor=JIANG+YAOQUAN&rft.inventor=PENG+AIPING&rft.inventor=XIE+JUN&rft.inventor=MA+MULIN&rft.inventor=LI+LIANGBIN&rft.inventor=HU+ZHIHUA&rft.inventor=LI+FANGFANG&rft.date=2018-02-23&rft.externalDBID=A&rft.externalDocID=CN107723726A |