ZA767361B
(en )
1977-11-30
Process for the treatment of water
CS188994B2
(en )
1979-03-30
Process for preparing alkylesters of 1,4-dihydro-pyridincarboxylic acids
GB1554280A
(en )
1979-10-17
Purification of formic acid
CA1011955A
(en )
1977-06-14
Process for treatment of lateritic ores
GB2001611B
(en )
1982-02-03
Hydrometallurgical process for the treatment of ores
GB2028311B
(en )
1983-02-09
Treatment of urea solution
YU276476A
(en )
1983-10-31
Process for the purification of an extract containing utero-evacuating substances obtained from the zaopatl plant
GR60649B
(en )
1978-07-06
Removal of ferrum,silicon and other impurities from solution derived from laterite treatment by acids
EG12802A
(en )
1979-09-30
Process for the preparation of acrylic acid and methacyclic acid from the corresponding aldehydes
GB1538937A
(en )
1979-01-24
Treatment of 1,5-dimethyl-tetralin to remove acid residues therefrom
PT67421B
(en )
1979-05-23
Process for recovering gallium from aluminate-alkali solutions resulting from treatment of aluminium-containing ores
ZA763218B
(en )
1977-08-31
Method of eliminating impurities on cards
ZA764225B
(en )
1977-07-27
Distillative purification of 2,5-dioxo-1-oxa-2-phospholanes
GB1556478A
(en )
1979-11-28
Process for the purification of phosphoric acid
DE3064309D1
(en )
1983-08-25
Process for the preparation of l-aspartic acid n-thiocarboxyanhydride
JPS5211837A
(en )
1977-01-29
Input-output interface starting method
JPS5581657A
(en )
1980-06-19
Purifying waterrremoving method of blood
GR63642B
(en )
1979-11-27
Product and process for treatment of schizophrenia
GB1539438A
(en )
1979-01-31
Process of purifying adiponitrile
PH11671A
(en )
1978-05-19
Process for treatment of lateritic ores
JPS5214624A
(en )
1977-02-03
Sulfurrcontained slag treatment process
JPS51149207A
(en )
1976-12-22
Process for removal of oxygen in ethylene
AU7491774A
(en )
1976-05-06
Process for treatment of lateritic ores
JPS51127025A
(en )
1976-11-05
Improved recovering and purifying system of acrironitlile and methacrylonitlile
JPS5273679A
(en )
1977-06-20
Method of improved plasma treatment at low temperature