Preparation method and application of a wool-loaded nano-pd-co catalyst
A catalyst, pd-co technology, applied in the preparation of organic compounds, chemical instruments and methods, catalysts for physical/chemical processes, etc., can solve the problems of waste of wool resources, environmental pollution in the location of the enterprise, and achieve high loading rate and simple use. , the effect of simple operation
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Embodiment 1
[0022] (1) Wool pretreatment: Take raw wool or short wool fibers discarded by woolen mills, wash with water, remove impurities, dry and crush, and sieve with a 10-mesh sieve to obtain pretreated wool;
[0023] (2) Wool degreasing treatment: In the reactor, add 1g NaOH, 2.0g sodium dodecylbenzenesulfonate, 88mL deionized water, 9g pretreated wool, stir evenly and soak for 18h, boil for 15min, cool with deionized Wash with water until neutral, after suction filtration, soak in 100mL acetone for 6h at 60°C, after cooling, filter with suction, wash with water until neutral, dry at 80°C to obtain degreased wool;
[0024] (3) Preparation of mercapto wool: Add 50mL thioglycolic acid, 40mL tetrahydrofuran, 10g degreased wool, 4 drops of concentrated sulfuric acid, stopper, and reflux at 60°C for 5h under stirring, then wash with deionized water, pump Filter until the filtrate is neutral, wash with a small amount of ethanol, and dry in an oven at 50°C to obtain mercapto wool;
[0025]...
Embodiment 2
[0027](1) Wool pretreatment: Take raw wool or short wool fibers discarded by wool spinning mills, wash with water, remove impurities, dry and crush, and sieve with a 20-mesh sieve to obtain pretreated wool;
[0028] (2) Wool degreasing treatment: In the reactor, add 2g NaOH, 1.0g betaine, 85mL deionized water, 12g pretreated wool, stir evenly and soak for 16h, boil for 20min, wash with deionized water until neutral after cooling, After suction filtration, soak in 60 mL of acetone for 6 hours at 60°C, after cooling, suction filter, wash with water until neutral, and dry at 80°C to obtain degreased wool;
[0029] (3) Preparation of mercapto wool: Add 56mL of thioglycolic acid, 36mL of tetrahydrofuran, 8g of degreased wool, 3 drops of concentrated sulfuric acid, stopper, and reflux at 60°C for 4 hours under stirring, then wash with deionized water, pump Filter until the filtrate is neutral, wash with a small amount of ethanol, and dry in an oven at 50°C to obtain mercapto wool; ...
Embodiment 3
[0032] (1) Wool pretreatment: Take raw wool or short wool fibers discarded by woolen mills, wash with water, remove impurities, dry and crush, and sieve with a 10-mesh sieve to obtain pretreated wool;
[0033] (2) Wool degreasing treatment: In the reactor, add 0.5g NaOH, 3.0g sodium dodecylbenzenesulfonate, 91.5mL deionized water, 5g pretreated wool, stir well and soak for 20h, boil for 20min, cool and use Wash with deionized water until neutral, after suction filtration, soak in 75mL acetone for 6h at 60°C, after cooling, filter with suction, wash with water until neutral, dry at 80°C to obtain degreased wool;
[0034] (3) Preparation of mercapto wool: Add 46mL of thioglycolic acid, 36mL of tetrahydrofuran, 18g of degreased wool, 4 drops of concentrated sulfuric acid, stopper, and reflux at 60°C for 6 hours under stirring, then wash with deionized water, pump Filter until the filtrate is neutral, wash with a small amount of ethanol, and dry in an oven at 50°C to obtain mercap...
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