ES2895202R1 - DL-HYDROXYPHENYL HYDANTOIN AND THE CONSEQUENT PROCEDURE FOR THE PRODUCTION OF UREA SULFATE/AMMONIUM SULFATE - Google Patents

DL-HYDROXYPHENYL HYDANTOIN AND THE CONSEQUENT PROCEDURE FOR THE PRODUCTION OF UREA SULFATE/AMMONIUM SULFATE

Info

Publication number
ES2895202R1
ES2895202R1 ES202090071A ES202090071A ES2895202R1 ES 2895202 R1 ES2895202 R1 ES 2895202R1 ES 202090071 A ES202090071 A ES 202090071A ES 202090071 A ES202090071 A ES 202090071A ES 2895202 R1 ES2895202 R1 ES 2895202R1
Authority
ES
Spain
Prior art keywords
sulfate
consequent
procedure
production
urea
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.)
Pending
Application number
ES202090071A
Other languages
Spanish (es)
Other versions
ES2895202A2 (en
Inventor
Yuwei Lu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DINGTAO SANHUA PHARMACEUTICAL CO Ltd
Original Assignee
DINGTAO SANHUA PHARMACEUTICAL CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by DINGTAO SANHUA PHARMACEUTICAL CO Ltd filed Critical DINGTAO SANHUA PHARMACEUTICAL CO Ltd
Publication of ES2895202A2 publication Critical patent/ES2895202A2/en
Publication of ES2895202R1 publication Critical patent/ES2895202R1/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/24—Sulfates of ammonium
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/24—Sulfates of ammonium
    • C01C1/242—Preparation from ammonia and sulfuric acid or sulfur trioxide
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C9/00—Fertilisers containing urea or urea compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C275/00—Derivatives of urea, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C275/02—Salts; Complexes; Addition compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
    • C07D233/54—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
    • C07D233/66—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D233/72—Two oxygen atoms, e.g. hydantoin
    • C07D233/76—Two oxygen atoms, e.g. hydantoin with substituted hydrocarbon radicals attached to the third ring carbon atom
    • C07D233/78—Radicals substituted by oxygen atoms
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
ES202090071A 2020-07-09 2020-11-13 DL-HYDROXYPHENYL HYDANTOIN AND THE CONSEQUENT PROCEDURE FOR THE PRODUCTION OF UREA SULFATE/AMMONIUM SULFATE Pending ES2895202R1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010677883.5A CN111807877A (en) 2020-07-09 2020-07-09 DL-p-hydroxyphenylhydantoin and production process of urea sulfate/ammonium sulfate thereof
PCT/CN2020/128662 WO2022007288A1 (en) 2020-07-09 2020-11-13 Dl-p-hydroxybenzene hydantoin and urea sulfate/ammonium sulfate production process thereof

Publications (2)

Publication Number Publication Date
ES2895202A2 ES2895202A2 (en) 2022-02-17
ES2895202R1 true ES2895202R1 (en) 2022-04-12

Family

ID=72864786

Family Applications (1)

Application Number Title Priority Date Filing Date
ES202090071A Pending ES2895202R1 (en) 2020-07-09 2020-11-13 DL-HYDROXYPHENYL HYDANTOIN AND THE CONSEQUENT PROCEDURE FOR THE PRODUCTION OF UREA SULFATE/AMMONIUM SULFATE

Country Status (3)

Country Link
CN (1) CN111807877A (en)
ES (1) ES2895202R1 (en)
WO (1) WO2022007288A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111807877A (en) * 2020-07-09 2020-10-23 定陶三化药业有限公司 DL-p-hydroxyphenylhydantoin and production process of urea sulfate/ammonium sulfate thereof
CN112457256B (en) * 2020-11-20 2022-08-05 杭州新桂实业有限公司 Preparation method of DL-p-hydroxyphenylhydantoin

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54115376A (en) * 1978-02-25 1979-09-07 Kanegafuchi Chem Ind Co Ltd Preparation of 5-(4-hydroxyphenyl)-hydantoin
US4230869A (en) * 1977-03-18 1980-10-28 Kanegafuchi Kagaku Kogyo Kabushiki Kaisha Process for preparing 5-(4-hydroxyphenyl)hydantoin
CN1884144A (en) * 2006-06-29 2006-12-27 南京大学 Method for treating waste water in production of para-hydroxyphenyl hydantoin
CN101230123A (en) * 2007-12-28 2008-07-30 天津市职业大学 Comprehensive utilization method for byproduct of p-hydroxybenzene hydantoin production
CN107759754A (en) * 2017-10-29 2018-03-06 天津市职业大学 The method for preparing glycolylurea formaldehyde resin using 4-Hydroxyphenyl hydantoin production waste residue
CN109867391A (en) * 2017-12-03 2019-06-11 天津市职业大学 The preprocess method of 4-Hydroxyphenyl hydantoin production high concentration highly acid phenolic waste liquor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102382060A (en) * 2010-08-31 2012-03-21 河南新天地药业股份有限公司 Method for synthesizing DL-p-hydroxybenzene hydantoin
CN102826673B (en) * 2011-06-15 2016-01-06 浙江龙盛集团股份有限公司 A kind of cleaning method of dyestuffs industries acid waste water
CN106083629A (en) * 2016-06-14 2016-11-09 安徽赛诺制药有限公司 The preparation method of D-pHPG
CN107089930A (en) * 2017-05-05 2017-08-25 四川大学 The method that urea sulfate reaction coupling extract and separate handles Waste Sulfuric Acid
CN110981811A (en) * 2019-11-29 2020-04-10 合肥利夫生物科技有限公司 Preparation method of p-hydroxy-phenyl-hydantoin
CN111807877A (en) * 2020-07-09 2020-10-23 定陶三化药业有限公司 DL-p-hydroxyphenylhydantoin and production process of urea sulfate/ammonium sulfate thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4230869A (en) * 1977-03-18 1980-10-28 Kanegafuchi Kagaku Kogyo Kabushiki Kaisha Process for preparing 5-(4-hydroxyphenyl)hydantoin
JPS54115376A (en) * 1978-02-25 1979-09-07 Kanegafuchi Chem Ind Co Ltd Preparation of 5-(4-hydroxyphenyl)-hydantoin
CN1884144A (en) * 2006-06-29 2006-12-27 南京大学 Method for treating waste water in production of para-hydroxyphenyl hydantoin
CN101230123A (en) * 2007-12-28 2008-07-30 天津市职业大学 Comprehensive utilization method for byproduct of p-hydroxybenzene hydantoin production
CN107759754A (en) * 2017-10-29 2018-03-06 天津市职业大学 The method for preparing glycolylurea formaldehyde resin using 4-Hydroxyphenyl hydantoin production waste residue
CN109867391A (en) * 2017-12-03 2019-06-11 天津市职业大学 The preprocess method of 4-Hydroxyphenyl hydantoin production high concentration highly acid phenolic waste liquor

Also Published As

Publication number Publication date
CN111807877A (en) 2020-10-23
WO2022007288A1 (en) 2022-01-13
ES2895202A2 (en) 2022-02-17

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