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.)
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.)
INST UDOBRENIAM INSEKTOFUNGI
Original Assignee
INST UDOBRENIAM INSEKTOFUNGI
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 INST UDOBRENIAM INSEKTOFUNGIfiledCriticalINST UDOBRENIAM INSEKTOFUNGI
Priority to FR7412641ApriorityCriticalpatent/FR2267282A1/fr
Publication of FR2267282A1publicationCriticalpatent/FR2267282A1/fr
Application grantedgrantedCritical
Publication of FR2267282B1publicationCriticalpatent/FR2267282B1/fr
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
C01B17/74—Preparation
C01B17/76—Preparation by contact processes
Landscapes
Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Inorganic Chemistry
(AREA)
Treating Waste Gases
(AREA)
FR7412641A1974-04-101974-04-10Sulphuric acid prodn. by contact process - with sulphur trioxide absorption under controlled conditions
GrantedFR2267282A1
(en)