FR2166923A5 - Oxidation of sulphide in kraft process black liquor - - using two stage contact treatment with oxygen - Google Patents
Oxidation of sulphide in kraft process black liquor - - using two stage contact treatment with oxygenInfo
- Publication number
- FR2166923A5 FR2166923A5 FR7237469A FR7237469A FR2166923A5 FR 2166923 A5 FR2166923 A5 FR 2166923A5 FR 7237469 A FR7237469 A FR 7237469A FR 7237469 A FR7237469 A FR 7237469A FR 2166923 A5 FR2166923 A5 FR 2166923A5
- Authority
- FR
- France
- Prior art keywords
- sulphide
- black liquor
- oxidation
- oxygen
- contact treatment
- Prior art date
- 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.)
- Expired
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0057—Oxidation of liquors, e.g. in order to reduce the losses of sulfur compounds, followed by evaporation or combustion if the liquor in question is a black liquor
Landscapes
- Paper (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8399771A JPS5347405B2 (de) | 1971-10-25 | 1971-10-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2166923A5 true FR2166923A5 (en) | 1973-08-17 |
Family
ID=13818159
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7237469A Expired FR2166923A5 (en) | 1971-10-25 | 1972-10-23 | Oxidation of sulphide in kraft process black liquor - - using two stage contact treatment with oxygen |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS5347405B2 (de) |
FR (1) | FR2166923A5 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57172124U (de) * | 1981-04-24 | 1982-10-29 | ||
JPS58161123U (ja) * | 1982-04-20 | 1983-10-27 | 日産自動車株式会社 | 渦流室式デイ−ゼルエンジン |
US6627784B2 (en) | 2000-05-17 | 2003-09-30 | Hydro Dynamics, Inc. | Highly efficient method of mixing dissimilar fluids using mechanically induced cavitation |
WO2004103911A1 (en) | 2003-05-19 | 2004-12-02 | Hydro Dynamics, Inc. | Method and apparatus for conducting a chemical reaction in the presence of cavitation and an electrical current |
US8430968B2 (en) | 2008-01-22 | 2013-04-30 | Hydro Dynamics, Inc. | Method of extracting starches and sugar from biological material using controlled cavitation |
-
1971
- 1971-10-25 JP JP8399771A patent/JPS5347405B2/ja not_active Expired
-
1972
- 1972-10-23 FR FR7237469A patent/FR2166923A5/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5347405B2 (de) | 1978-12-21 |
JPS4861704A (de) | 1973-08-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2254361A1 (en) | Removing hydrogen sulphide from gas mix and recovering sulphur - by scrubbing with soln contg. catalyst system and oxidising with air | |
GB1387510A (en) | Continuous process for the air oxidation of sour water | |
IN169395B (de) | ||
FR2166923A5 (en) | Oxidation of sulphide in kraft process black liquor - - using two stage contact treatment with oxygen | |
DE3170107D1 (en) | A method of manufacturing sulphuric acid | |
GR3015893T3 (en) | Process for the removal of sulfur dioxide from waste gas. | |
KR850002241A (ko) | 황화수소를 원소유황 및/또는 이산화황으로 산화시키는 방법 | |
GB904982A (en) | A process for the preparation of sulphur trioxide | |
GB1534085A (en) | Oxidation of waste water containing sulphide sulphide and/or thiosulphate | |
ES405469A1 (es) | Un procedimiento de oxidacion catalitica en etapas multi- ples de anhidrido sullfuroso a anhidrido sulfurico. | |
ES425629A1 (es) | Procedimiento de tratamiento de aguas que contienen sulfi- tos. | |
GB811058A (en) | Method of producing concentrated sulphuric acid and oleum from gases containing hydrogen sulphide | |
GB1401325A (en) | Process for scrubbing so2 from a gas stream | |
GB1404513A (en) | Oxidation process | |
GB365651A (en) | Process for the manufacture of barium hydroxide | |
GB511673A (en) | Improvements in converting ammonium sulphite-bisulphite into ammonium sulphate and sulphur | |
DE3560615D1 (en) | Process and apparatus for the desulfurization of fumes | |
GB1299772A (en) | Method of manufacturing sulphuric acid according to the contact method | |
GB1470299A (en) | Process for removing so2 from gases | |
ES428646A1 (es) | Procedimiento para la depuracion de humos y de gases de combustion y produccion concomitante de acido sulfurico. | |
ES260789A3 (es) | Un procedimiento para la producciën de acido sulfurico | |
ES430501A1 (es) | Procedimiento para recuperar dioxido de azufre de gases de dioxido de azufre diluidos. | |
ES374185A1 (es) | Procedimiento para la produccion de acido sulfurico y apa- rato para su realizacion. | |
NL7315509A (en) | Reduction of sulphur dioxide in waste gases - by contacting gas with granular coal in presence of steam | |
FR2203667A1 (en) | Wet process for flue gas desulphurisation - by two stage absorption with recirculation of lime suspension giving efficient absorption and low lime loss |