GB8315974D0
(en )
1983-07-13
Manufacture of sulphuric acid
PL268098A1
(en )
1988-09-01
The method of manufacture of new derivatives of naphtiridin- or quinolincarboxy acid
HUT57673A
(en )
1991-12-30
Process and equipment for producing sulphuric acid
GB2181120B
(en )
1989-03-22
Manufacture of sulphuric acid
EP0181029A3
(en )
1987-06-16
Continuous process for the preparation of phosphoric acid and of calcium sulphate
AU557636B2
(en )
1986-12-24
Process of producing sulphuric acid
GB8423963D0
(en )
1984-10-31
Neutralization of organic sulphuric acid
PT83134A
(en )
1986-09-01
Process for the preparation of adition salts of sulphuric acid
NZ218628A
(en )
1988-11-29
Sulphuric acid production from sulpur trioxide; and apparatus
DE3565092D1
(en )
1988-10-27
Apparatus and process for the concentration of sulphuric acid
IL89044A
(en )
1993-03-15
Process for the recovery and concentration of sulfuric acid
AR245094A1
(en )
1993-12-30
Process for the manufacture of benzoic acid and salts thereof
DE3460710D1
(en )
1986-10-23
Process for preparing sulphuric acid and oleum
GB8503195D0
(en )
1985-03-13
Producing sulphuric acid
NO167970C
(en )
1992-01-02
PROCEDURE FOR RECYCLING OF USED METAL SULPHATE SULFURIC ACID.
BG52011B2
(en )
1995-06-30
Method for the preparation of sulphur trioxide and sulphuric acid
AU547956B2
(en )
1985-11-14
Production of sulphuric acid
JPS6470459A
(en )
1989-03-15
Manufacture of 2-arylthiobenzoic acid
BG39528A1
(en )
1986-07-15
Method for manufacture of sulphur trioxide and sulphur acid
JPS6431755A
(en )
1989-02-02
Manufacture of aminoaryl-sulfonic acid
PT72963B
(en )
1982-06-25
Process for decomposing of iron sulphates and sulphuric acid
JPS6445355A
(en )
1989-02-17
Manufacture of alkanedisulfonic acid
PT85270A
(en )
1987-08-01
Process for the production of vinyldiphosphonic acid and its salts
EP0319743B1
(en )
1991-02-27
Conversion system and process for preparing sulphur trioxide
CS300988A1
(en )
1989-05-12
Method of quinonine sulphuric acid's refining