Global Patent Index - EP 0452178 A1

EP 0452178 A1 19911016 - Process for preparing mercury from calomel.

Title (en)

Process for preparing mercury from calomel.

Title (de)

Verfahren zur Herstellung von Quecksilber aus Kalomel.

Title (fr)

Procédé de préparation de mercure métallique à partir de calomel.

Publication

EP 0452178 A1 19911016 (FR)

Application

EP 91400811 A 19910326

Priority

FR 9004830 A 19900413

Abstract (en)

Process and apparatus for the production of mercury by reduction of calomel by using a process for the preparation of metallic mercury. <??>This plant comprises:   - a reactor 2 with a sloping bottom 4 for the reduction, provided with a stirrer 3, connected via a pipeline 5 to the said phase separator 1 and provided with means for feeding water 7 and sulphuric acid 8; and   - a mercury recovery vessel 11 connected to the bottom part of the reactor. <IMAGE>

IPC 1-7

C22B 43/00

IPC 8 full level

C22B 43/00 (2006.01)

CPC (source: EP KR US)

C22B 43/00 (2013.01 - EP KR US)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE DK ES GB GR IT LI LU NL SE

DOCDB simple family (publication)

EP 0452178 A1 19911016; AU 6127990 A 19911017; AU 628215 B2 19920910; CA 2037829 A1 19911014; ES 2040195 T1 19931016; FR 2660936 A1 19911018; FR 2660936 B1 19920911; GR 920300020 T1 19920825; JP H04329 A 19920106; KR 910018564 A 19911130; KR 940006494 B1 19940721; MX 174262 B 19940502; US 5071475 A 19911210

DOCDB simple family (application)

EP 91400811 A 19910326; AU 6127990 A 19900823; CA 2037829 A 19910308; ES 91400811 T 19910326; FR 9004830 A 19900413; GR 920300020 T 19920825; JP 23264690 A 19900904; KR 900013872 A 19900903; MX 2524491 A 19910405; US 57222690 A 19900824