Methods and compositions to enhance tall oil soap separation from waste pulping liquor
阅读：1010发布：2021-01-13
专利汇可以提供Methods and compositions to enhance tall oil soap separation from waste pulping liquor专利检索，专利查询，专利分析的服务。并且The present disclosure is directed to methods and compositions for enhancing tall oil soap recovery during the concentration of a black liquor derived from kraft or sulfate pulping processes. The methods basically provide for the addition to the black liquor of an effective amount of compositions comprising combinations of a water-insoluble organic liquid, an ester of a polyethylene glycol, a petroleum sulfonic acid, a tallow fatty acid and/or tallow fatty alcohol, and a product derived by the esterification of an ethoxylated (5-40) moles sugar alcohol with an unsaturated C14-C20 fatty acid, or mixtures thereof optionally but beneficially a lower alkanol solubilizing agent.，下面是Methods and compositions to enhance tall oil soap separation from waste pulping liquor专利的具体信息内容。
1. A composition for use in tall oil separation comprising on a percentage weight ratio basis i. from about 0.1% to about 15% of a product derived by the esterification of an ethoxylated sugar alcohol having a mole ratio of 5 to 40 moles of ethylene oxide per mole of sugar by an unsaturated C14 - C20 fatty acid or mixture thereof ii. from about 0.5% to about 30% of at least one tallow fatty acid, or tallow fatty alcohol, having from about 12 to 20 carbon atoms iii. a material in the weight ratio specified selected from the group consisting of: a. from about 0.1% to about 15% of a fatty acid mono or diester of a polyethylene glycol, said fatty acid having from about 14 to 18 carbon atoms, b. from about 0.3% to about 20% of a petroleum sulfonic acid, or water soluble salt thereof, having a molecular weight of from about 400 to 900, and c. mixtures of (a) and (b), each of which is present in the mixture in an amount sufficient to provide the appropriate weight ratio for the composition; and iv. from about 65 to about 98% of a water-insoluble liquid selected from the group consisting of vegetable oils, aliphatic hydrocarbons, alicyclic hydrocarbons, aromatic hydrocarbons, halogenated aliphatic hydrocarbons, halogenated alicyclic hydrocarbons, halogenated aromatic hydrocarbons, and long chain amines.
2. A composition according to claim 1 which contains from about 0.5% to about 8% of a lower alkanol solublizing agent.
3. A composition according to claim 1 wherein: the tallow fatty acid or alcohol has from about 16 to 18 carbon atoms and is present in an amount of from about 2% to about 15%; thE petroleum sulfonic acid is present and has a molecular weight of from about 400 to 500 and is present in an amount of from about 1.0% to about 8%; the ethoxylated sugar alcohol is esterified wtih oleic acid and is present in an amount of from 0.5 to 12%; the polyethylene glycol ester is present and is polyethylene glycol 600 dioleate and is present in an amount of from about 0.5% to 12%; the organic liquid is a refined mineral oil and is present in an amount of about 75% to about 93%.
4. A composition according to claim 3 which contains from about 2% to about 6% of isopropanol.
5. A composition according to claim 3 wherein: the tallow acid or alcohol is a mixture of stearic, palmitic and oleic acids or alcohols and is present in an amount of about 2%; the petroleum sulfonic acid is present in an amount of about 2%; the product is polyethylene glycol (26) sorbitol hexaoleate and is present in an amount of about 2%; said glycol ester is present in an amount of about 8%; and said mineral is paraffinic and is present in an amount of about 83%.
6. A composition according to claim 5 which contains about 5% of isopropanol.
7. A METHOD FOR ENHANCHING THE SEPARATION OF TALL OIL SOAP FROM BLACK LIQUORS DERIVED FROM ALKALINE PULPING OPERATIONS WHICH COMPRISES ADDING THERETO AN AMOUNT EFFECTIVE FOR THE PURPOSE OF A COMPOSITION COMPRISING: I. FROM ABOUT 0.1% TO ABOUT 15% OF A PRODUCT DERIVED BY THE ESTERIFICATION OF AN ETHOXYLATED SUGAR ALCOHOL HAVING A MOLE RATIO OF 5 TO 40 MOLES OF ETHYLENE OXIDE PER MOLE OF SUGAR BY AN UNSATURATED C14-C20 FATTY ACID OR MIXTURE THEREOF II. FROM ABOUT 0.5% TO ABOUT 30% OF AT LEAST ONE TALLOW FATTY ACID, OR TALLOW FATTY ALCOHOL, HAVING FROM ABOYUT 12 TO 20 CARBON ATOMS III. A MATERIAL IN THE WEIGHT RATIO SPECIFIED SELECTED FROM THE GROUP CONSISTING OF: A. FROM ABOUT 0.1% TO ABOUT 15% OF A FATTY ACID MONO OR DIESTER OF A POLYETHYLENE GLYCOL, SAID FATTY ACID HAVING FROM ABOUT 14 TO 18 CARBON ATOMS, B. FROM ABOUT 0.3% TO ABOUT 20% OF A PETROLEUM SULFONIC ACID, OR WATER SOLUBLE SALT THEREOF, HAVING A MOLECULAR WEIGHT OF FROM ABOUT 400 TO 900, AND C. MIXTURES OF (A) AND (B), EACH OF WHICH IS PRESENT IN THE MIXTURE IN AN AMOUNT SUFFICIENT TO PROVIDE THE APPROPRIATE WEIGHT RATIO FOR THE COMPOSITION IV. FROM ABOUT 65 TO ABOUT 98% OF WATER-INSOLUBLE LIQUID SELECTED FROM THE GROUP CONSISTING OF VEGETABLE OILS, ALIPHATIC HYDROCARBONS, ALICYCLIC HYDROCARBONS, AROMATIC HYDROCARBONS, HALOGENATED ALIPHATIC HYDROCARBONS, HALOGENATED ALICYCLIC HYDROCARBONS, HALOGENATED AROMATIC HYDROCARBONS, AND LONG CHAIN AMINES.
8. A method according to claim 7 wherein the composition contains from about 0.5% to about 8% of a lower alkanol solubilizing agent.
9. A method according to claim 7 wherein the tallow fatty acid or alcohol has from about 16 to 18 carbon atoms and is present in an amount of from about 2% to 15%; the petroleum sulfonic acid is present and has a molecular weight of from about 400 to 500 and is present in an amount of from about 1.0% to about 8%, the ethoxlated sugar alcohol is esterified with oleic acid and is present in the amount of from 0.5 to 12%; the polyethylene glycol ester is present and is polyethylene glycol 600 dioleate and is present in an amount of from about 0.5% to 12%; the organic liquid is a refined mineral oil and is present in an amount of about 75% to about 93%.
10. A method according to claim 9 which contains from about 2% to about 6% of isopropanol.
11. A method according to claim 9 wherein: the tallow acid alcohol is a mixture of stearic, palmitic and olEic acids or alcohols and is present in an amount of about 2%; the petroleum sulfonic acid is present in an amount of about 2%; said glycol ester is present in an amount of about 8%, and said mineral oil is paraffinic and is present in an amount of about 83%, and the product is polyethylene glycol (26) sorbitol hexaoleate and is present in an amount of about 2%.
12. A method according to claim 9 wherein the composition is added to the black liquor in an amount of from about 10 to about 1000 parts per million parts of black liquor.
13. A method according to claim 10 wherein the composition is added to the black liquor in an amount of from about 10 to about 1000 parts per million parts of black liquor.
14. A method according to claim 12 wherein the composition is added to the black liquor after it has been concentrated to between 21 and 25% solids.
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