sodium sulfide kiln

Redacted for privacy

The high sodium was due to the low sulfur input to the kiln resulting in high sodium to sulfur ratio. The use of natural gas as a fuel source in the kiln partly causes low sulfur levels in the mud. This study examines the effects of burning emulsified sulfur in the # 3 rotary lime kiln to reduce sodium enrichment in the solids, and examine its Get price

Kraft Pulp Plant

Kraft pulp millThe use of sodium sulfide in the kraft pulping process causes the release of fumes whose unpleasant characteristic odour is well known. It is also recognized that in the digester, the sulfide ion combines with various chemical compounds derived from the wood to form organic sulfides such as methyl mercaptan (CH3SH), dimethyl sulfide (CH32S), dimethyl bisulfide Get price

Field Applications

Tree logs are pulped by using white liquor (consisting primarily of sodium hydroxide and sodium sulfide), process water, heat, and pressure to separate wood chips into lignin and cellulose fibers. Wood chips contain approximately 50% water and 50% wood by weight. Process water and white liquor are necessary to create black liquor. Get price

7 Sodium Sulfate Functions in Daily Life

May 22, 2017To make sodium sulfide, sodium sulfate is going through some reduction process to break its chemical bonds and then formed to another compound. In the lab, chemist can use it as an inert drying compound for organic materials. This magical compound removes water from compounds reliably at temperatures below 30-degree celsius. Get price

sodium sulfate ore beneficiation

chrome ore reaction with sodium carbonate in rotary kiln. Jan 25, 2007 sodium sulfate ore beneficiation - hwjvanoostennl. chrome ore reaction with sodium carbonate in rotary kiln soda ash ore mining latourdebebellebe method of mining soda ash, chrome ore reaction with sodium carbonate in rotary kiln and ground chromite ore mixed with soda ash (a source of sodium carbonate), Contact Supplier Get price

sodium sulfate ore beneficiation

chrome ore reaction with sodium carbonate in rotary kiln. Jan 25, 2007 sodium sulfate ore beneficiation - hwjvanoostennl. chrome ore reaction with sodium carbonate in rotary kiln soda ash ore mining latourdebebellebe method of mining soda ash, chrome ore reaction with sodium carbonate in rotary kiln and ground chromite ore mixed with soda ash (a source of sodium carbonate), Contact Supplier Get price

S.D. Warren Company Departmental Somerset County

Lime Kiln 92.1 MMBtu/hr Process Equipment PCC Plant 90,000 dry ton/day Process Equipment wood is ﬁcookedﬂ in a chemical solution of sodium hydroxide and sodium sulfide called white liquor to dissolve lignin from around wood fibers. Pulp from the digester, called brown stock, is washed in the pressure diffusion Get price

On

White Liquor Oxidation: (Oxygen consumption- 5-10kgO2/BDMT) – oxygen is used to oxidize sodium sulfide into sodium thiosulfate (partial oxidation) and sodium sulfate – is a very standard oxygen application and has been used in the PP industry for decades to increase lime kiln capacity. Oxygen added to the combustion air increases the Get price

Kraft process

The kraft process (also known as kraft pulping or sulfate process) is a process for conversion of wood into wood pulp, which consists of almost pure cellulose fibers, the main component of paper.The kraft process entails treatment of wood chips with a hot mixture of water, sodium hydroxide (NaOH), and sodium sulfide (Na 2 S), known as white liquor, that breaks the bonds that link lignin Get price

4 Physical Solubility of Total Reduced Sulfurs in Fe

uor (alkaline solutions containing sodium sulfide and sodium hydroxide) for the digestion of wood and the conversion into pulp. During operation, sodium sulfide combines with or- kilns, evaporators, washers, etc. Considering the progressive nature of legislations, it is anticipated that increasingly Get price

Material Safety Data Sheet

MSDS Name: Sodium Sulfide Catalog Numbers: AC310180000, AC310180100 Synonyms: Sodium monosulfide; sodium sulfide anhydrous; sodium sulfide with 30% water of crystallization; sodium sulphide Company Identification: Acros Organics N.V. One Reagent Lane Fair Lawn, NJ 07410 Get price

Kala namak

Kala namak is a kiln-fired rock salt used in South Asia with a sulphurous, pungent-smell. It is also known as Himalayan black salt, Sulemani namak, bit lobon, kala noon, or pada loon and manufactured from the salts mined in the regions surrounding the Himalayas. The condiment is composed largely of sodium chloride with several other components lending the salt its colour and smell. Get price

ENVIRONMENTAL ASPECTS OF THE PULP AND PAPER

evaporators, brown stock washers, lime kilns, digesters, unit processes that handle black liquor which permit its contact with ventilation air and smelt tanks. Hydrogen sulphide can be formed in the direct contact evaporator, where carbon dioxide in the flue gas from the recovery furnace reacts with sodium suiphide in the black liquor. Get price

Sodium Sulfide 1% Gel Safety Supported By New Clinical

The safety of sodium sulfide gel for the relief of pain associated with ingrown toenails is exhibited by the results of a clinical study conducted by Schering-Plough, the company tells FDA in an Oct. 13 citizen petition. Previous agency concerns regarding the ingredient's safety should be addressed by the findings, the petition says. Get price

CHEMICAL PRODUCTS CORPORATION

Sodium Sulfide Solution Do not taste or swallow. Avoid skin contact. Use only with adequate ventilation. Wash thoroughly after handling. _____ _____ 3. INFORMATION ON INGREDIENTS C0MPONENT CAS # EXPOSURE LIMITS % BY WT Sodium Sulfide 1313-82-2 No ACGIH TLV or OSHA PEL ca 10 -12 established for Sodium Sulfide. Get price

TT

4.3.8 Resistance to sodium sulfide. Place 10 g of the beads in a glass stopper bottle and cover with a solution containing by weight 50% sodium sulfide, 48% distilled water, and 2% of an anionic wetting agent. Soak the beads for one hour and then rinse the beads 3 times with distilled water. Dry, then examine the beads under a microscope Get price

Kraft Pulp Plant

Kraft pulp millThe use of sodium sulfide in the kraft pulping process causes the release of fumes whose unpleasant characteristic odour is well known. It is also recognized that in the digester, the sulfide ion combines with various chemical compounds derived from the wood to form organic sulfides such as methyl mercaptan (CH3SH), dimethyl sulfide (CH32S), dimethyl bisulfide Get price

Paper Manufacturing: Kraft (Sulfate) Pulping

Sodium carbonate from the smelt is then converted to sodium hydroxide in the causticizer by adding calcium hydroxide. The calcium carbonate resulting from the reaction precipitates from the solution and is collected and sent to the lime kiln where it is converted to lime (calcium oxide). Get price

The two primary components of green liquor are sodium sulfide (Na2S) and sodium carbonate (NaCO3). Green liquor contains the chemicals (in the form of sodium salts) that were originally used to cook the pulp and have been recovered from the bottom of the recovery furnace. Heating the recovered lime in the kiln converts calcium carbonate Get price

Prevention of sulfide oxidation in waste rock by the

Waste rock. The waste rock originated from one of Boliden Mineral AB's Zn-Cu-Au-Ag open pit mines in northern Sweden. The mine is a volcanic-associated massive sulfide ore deposited at the bottom of the sea approximately 1.89 billion years ago and is part of the so-called Skellefte group (Montelius 2005).. As previously described, the success of passivation of sulfide surfaces by the Get price

Events Chronicle

1947: Yonghua Caustic Soda Company founded, specializing in sulphur black and Sodium sulfide production. 1957: Sodium sulfide product is recognized as "Flagship Sodium Sulfide" on the international market. 1959: China invents new kiln gas technology for producing barium carbonate and starts exporting it the same year. Get price

INOX Air Products Private Limited

Lime Kiln Enrichment : Mini Oxygen Delignification : Oxidative Extraction (Eo) This process uses the oxygen to oxidize the sodium sulfide into sodium thiosulfate (partial oxidation) and sodium sulfate (total oxidation). The reactions of this process are exothermic, making possible the Get price

Recovery of inorganic compounds from spent alkaline

The conditions within the furnace can be controlled such that the sodium sulfate is reduced to sodium sulfide. Sodium carbonate within the mixture can be converted to sodium hydroxide by addition of lime (CaO), the active form of which is later recovered by use of a lime kiln (Venkatesh 1992; Tikka 2008; Empie 2009; Bajpai 2017). Get price