GB9122347D0 - Purification method for efficient solutions - Google Patents

Purification method for efficient solutions

Info

Publication number: GB9122347D0
Authority: GB; United Kingdom
Prior art keywords: purification method; efficient solutions; efficient; solutions; purification
Prior art date: 1990-10-23
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.): Granted

Application number

GB919122347A

Other versions

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.)

Kemira Oyj

Original Assignee

Kemira Oyj

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.)

1990-10-23

Filing date

1991-10-22

Publication date

1991-12-04

1991-10-22 Application filed by Kemira Oyj filed Critical Kemira Oyj

1991-12-04 Publication of GB9122347D0 publication Critical patent/GB9122347D0/en

1992-04-29 Publication of GB2249086A publication Critical patent/GB2249086A/en

1994-10-12 Application granted granted Critical

1994-10-12 Publication of GB2249086B publication Critical patent/GB2249086B/en

2011-10-22 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Classifications

- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/04—Oxides; Hydroxides
- C01G23/047—Titanium dioxide
- C01G23/053—Producing by wet processes, e.g. hydrolysing titanium salts
- C01G23/0532—Producing by wet processes, e.g. hydrolysing titanium salts by hydrolysing sulfate-containing salts
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/90—Separation; Purification
- C01B17/901—Recovery from spent acids containing metallic ions, e.g. hydrolysis acids, pickling acids
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/10—Obtaining titanium, zirconium or hafnium
- C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
- C22B34/1236—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching
- C22B34/124—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching using acidic solutions or liquors
- C22B34/125—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching using acidic solutions or liquors containing a sulfur ion as active agent

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Life Sciences & Earth Sciences (AREA)
Environmental & Geological Engineering (AREA)
General Life Sciences & Earth Sciences (AREA)
Geology (AREA)
Engineering & Computer Science (AREA)
Inorganic Chemistry (AREA)
Mechanical Engineering (AREA)
Metallurgy (AREA)
Materials Engineering (AREA)
Manufacturing & Machinery (AREA)
Inorganic Compounds Of Heavy Metals (AREA)
Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Catalysts (AREA)
Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

GB9122347A 1990-10-23 1991-10-22 Concentrating sulphuric acid containing effluents produced in the manufacture of titanium dioxide Expired - Fee Related GB2249086B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FI905221A FI89901C (en)	1990-10-23	1990-10-23	purification method

Publications (3)

Publication Number	Publication Date
GB9122347D0 true GB9122347D0 (en)	1991-12-04
GB2249086A GB2249086A (en)	1992-04-29
GB2249086B GB2249086B (en)	1994-10-12

Family

ID=8531290

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB9122347A Expired - Fee Related GB2249086B (en)	1990-10-23	1991-10-22	Concentrating sulphuric acid containing effluents produced in the manufacture of titanium dioxide

Country Status (5)

Country	Link
DE (1)	DE4132843A1 (en)
ES (1)	ES2039151B1 (en)
FI (1)	FI89901C (en)
FR (1)	FR2668141B1 (en)
GB (1)	GB2249086B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN104692456A (en) *	2015-01-09	2015-06-10	上海安赐机械设备有限公司	Green and environment-friendly sulfuric acid method titanium dioxide production device and process

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2352701A1 (en) *	1973-10-20	1975-06-12	Hoechst Ag	PROCESS FOR CONCENTRATING SALTY, DILUTED SULFUR ACID
DE2630196A1 (en) *	1976-07-05	1978-01-19	Bayer Ag	METHOD FOR PRODUCING SULFURIC ACID FROM WASTE ACID AND IRON SULFATE
DE3327769A1 (en) *	1983-08-02	1985-02-14	Bayer Ag, 5090 Leverkusen	METHOD FOR THE TREATMENT OF THICK ACID
DE3513120A1 (en) *	1985-04-12	1986-10-23	Bayer Ag, 5090 Leverkusen	METHOD FOR PRODUCING TITANIUM DIOXIDE
DE3912554C1 (en) *	1989-04-17	1990-07-12	Bayer Ag, 5090 Leverkusen, De

1990
- 1990-10-23 FI FI905221A patent/FI89901C/en not_active IP Right Cessation
1991
- 1991-10-02 DE DE4132843A patent/DE4132843A1/en not_active Withdrawn
- 1991-10-02 FR FR9112115A patent/FR2668141B1/en not_active Expired - Fee Related
- 1991-10-14 ES ES9102261A patent/ES2039151B1/en not_active Expired - Lifetime
- 1991-10-22 GB GB9122347A patent/GB2249086B/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
ES2039151B1 (en)	1994-03-16
FI905221L (en)	1992-04-24
GB2249086B (en)	1994-10-12
GB2249086A (en)	1992-04-29
DE4132843A1 (en)	1992-04-30
FI89901B (en)	1993-08-31
FI89901C (en)	1993-12-10
ES2039151A1 (en)	1993-08-16
FR2668141B1 (en)	1994-04-08
FR2668141A1 (en)	1992-04-24
FI905221A0 (en)	1990-10-23

Publication	Publication Date	Title
HU9300003D0 (en)	1993-06-28	Method for purifying water
EG19392A (en)	1995-06-29	Improved method for omprazole symthesis
GB9120902D0 (en)	1991-11-13	Purification process
KR0121453B1 (en)	1997-11-15	Method for cleaning
PL310887A1 (en)	1996-01-08	Proncovertin purification method
GB9421705D0 (en)	1994-12-14	Purification process
GB9407886D0 (en)	1994-06-15	Purification process
EP0514890A3 (en)	1993-08-04	Method for purifying polysaccharides
GB2251403B (en)	1993-12-08	Degreasing-cleaning method
HU904246D0 (en)	1992-02-28	Method for purification
ZA915939B (en)	1992-06-24	Process for helium purification
GB9210081D0 (en)	1992-06-24	Purification process
GB9206667D0 (en)	1992-05-13	Purification process
EP0474182A3 (en)	1992-08-12	Method for the purification of a bifidobacteria-proliferating substance
GB9107344D0 (en)	1991-05-22	Purification process
HU9300927D0 (en)	1993-07-28	Method for hetero-annulation
HUT59897A (en)	1992-07-28	Process for purifying vinyl-aromatic monomeres
GB9107087D0 (en)	1991-05-22	Purification process
EP0563986A3 (en)	1994-11-23	Process for selective hydrodefluorination
GB9102750D0 (en)	1991-03-27	Purification process
GB9122347D0 (en)	1991-12-04	Purification method for efficient solutions
HU9204061D0 (en)	1993-04-28	Purification method
EP0434836A4 (en)	1991-10-16	Method for purifying teneicine
HU912694D0 (en)	1992-01-28	Process for purifying 4-acet-oxy-styrene
HU911860D0 (en)	1991-12-30	Process for separing and purifying 1-methyl-2-pyrrholidinyl-ethanol enantiomers

Legal Events

Date	Code	Title	Description
1996-06-19	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 19951022